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• insert/update/delete with xml in .net 3.5

  - by Radhi

  Hello guys, i have "UserProfile" in my site which we have stored in xml fromat of xml is as below <UserProfile xmlns=""> <BasicInfo> <Title value="Basic Details" /> <Fields> <UserId title="UserId" display="No" right="Public" value="12" /> <EmailAddress title="Email Address" display="Yes" right="Public" value="[email protected]" /> <FirstName title="First Name" display="Yes" right="Public" value="Radhi" /> <LastName title="Last Name" display="Yes" right="Public" value="Patel" /> <DisplayName title="Display Name" display="Yes" right="Public" value="Radhi Patel" /> <RegistrationStatusId title="RegistrationStatusId" display="No" right="Public" value="10" /> <RegistrationStatus title="Registration Status" display="Yes" right="Private" value="Registered" /> <CountryName title="Country" display="Yes" right="Public" value="India" /> <StateName title="State" display="Yes" right="Public" value="Maharashtra" /> <CityName title="City" display="Yes" right="Public" value="Mumbai" /> <Gender title="Gender" display="Yes" right="Public" value="FeMale" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="0" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Nov 27 2009 3:08PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="Feb 18 2010 1:43PM " /> <LogInStatusId title="LogInStatusId" display="No" right="Public" value="1" /> <LogInStatus title="LogIn Status" display="Yes" right="Private" value="Free" /> <ProfileImagePath title="Profile Pic" display="No" right="Public" value="~/Images/96.jpg" /> </Fields> </BasicInfo> <PersonalInfo> <Title value="Personal Details" /> <Fields> <Nickname title="Nick Name" display="Yes" right="Public" value="Rahul" /> <NativeLocation title="Native" display="Yes" right="Public" value="Amreli" /> <DateofAnniversary title="Anniversary Dt." display="Yes" right="Public" value="12/29/2008" /> <BloodGroupId title="BloodGroupId" display="No" right="Public" value="25" /> <BloodGroupName title="Blood Group" display="Yes" right="Public" value="25" /> <MaritalStatusId title="MaritalStatusId" display="No" right="Public" value="34" /> <MaritalStatusName title="Marital status" display="Yes" right="Private" value="34" /> <DateofDeath title="Death dt" display="Yes" right="Private" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Jan 6 2010 2:59PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="3/10/2010 5:34:14 PM" /> </Fields> </PersonalInfo> <FamilyInfo> <Title value="Family Details" /> <Fields> <GallantryHistory title="Gallantry History" display="Yes" right="Public" value="Gallantry history rahul" /> <Ethinicity title="Ethinicity" display="Yes" right="Public" value="ethnicity rahul" /> <KulDev title="KulDev" display="Yes" right="Public" value="Krishna" /> <KulDevi title="KulDevi" display="Yes" right="Public" value="Khodiyar" /> <Caste title="Caste" display="Yes" right="Private" value="Brhamin" /> <SunSignId title="SunSignId" display="No" right="Public" value="20" /> <SunSignName title="SunSignName" display="Yes" right="Public" value="Scorpio" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Dec 29 2009 4:59PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="3/10/2010 6:29:56 PM" /> </Fields> </FamilyInfo> <HobbyInfo> <Title value="Hobbies/Interests" /> <Fields> <AbountMe title="Abount Me" display="Yes" right="Public" value="Naughty.... " /> <Hobbies title="Hobbies" display="Yes" right="Public" value="Dance, Music, decoration, Shopping" /> <Food title="Food" display="Yes" right="Public" value="Maxican salsa, Pizza, Khoya kaju " /> <Movies title="Movies" display="Yes" right="Public" value="day after tommorrow. wake up sid. avatar" /> <Music title="Music" display="Yes" right="Public" value="Chu kar mere man ko... wake up sid songs, slow music, apgk songs" /> <TVShows title="TV Shows" display="Yes" right="Public" value="business bazzigar, hanah montana" /> <Books title="Books" display="Yes" right="Public" value="mystry novels" /> <Sports title="Sports" display="Yes" right="Public" value="Badminton" /> <Will title="Will" display="Yes" right="Public" value="do photography, to have my own super home... and i can decorate it like anything..." /> <FavouriteQuotes title="Favourite Quotes" display="Yes" right="Public" value="Live like a king nothing lasts forever. not even your troubles smooth sea do not makes skillfull sailors" /> <CremationPrefernces title="Cremation Prefernces" display="Yes" right="Public" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Feb 24 2010 2:13PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="Mar 2 2010 4:34PM " /> </Fields> </HobbyInfo> <PermenantAddr> <Title value="Permenant Address" /> <Fields> <Address title="Address" display="Yes" right="Public" value="Test Entry" /> <CityId title="CityId" display="No" right="Public" value="93" /> <CityName title="City" display="Yes" right="Public" value="Chennai" /> <StateId title="StateId" display="No" right="Public" value="89" /> <StateName title="State" display="Yes" right="Public" value="Tamil Nadu" /> <CountryId title="CountryId" display="No" right="Public" value="108" /> <CountryName title="Country" display="Yes" right="Public" value="India" /> <ZipCode title="ZipCode" display="Yes" right="Private" value="360019" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Jan 6 2010 1:29PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value=" " /> </Fields> </PermenantAddr> <PresentAddr> <Title value="Present Address" /> <Fields> <Address title="Ethinicity" display="Yes" right="Public" value="" /> <CityId title="CityId" display="No" right="Public" value="" /> <CityName title="City" display="Yes" right="Public" value="" /> <StateId title="StateId" display="No" right="Public" value="" /> <StateName title="State" display="Yes" right="Public" value="" /> <CountryId title="CountryId" display="No" right="Public" value="" /> <CountryName title="Country" display="Yes" right="Public" value="" /> <ZipCode title="ZipCode" display="Yes" right="Public" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="" /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="" /> </Fields> </PresentAddr> <ContactInfo> <Title value="Contact Details" /> <Fields> <DayPhoneNo title="Day Phone" display="Yes" right="Public" value="" /> <NightPhoneNo title="Night Phone" display="Yes" right="Public" value="" /> <MobileNo title="Mobile No" display="Yes" right="Private" value="" /> <FaxNo title="Fax No" display="Yes" right="CUG" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Jan 5 2010 12:37PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="Feb 17 2010 1:37PM " /> </Fields> </ContactInfo> <EmailInfo> <Title value="Alternate Email Addresses" /> <Fields /> </EmailInfo> <AcademicInfo> <Title value="Education Details" /> <Fields> <Record right="Public"> <Education title="Education" display="Yes" value="Full Attendance" /> <Institute title="Institute" display="Yes" value="Attendance" /> <PassingYear title="Passing Year" display="Yes" value="2000" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 12:41PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 12:41PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="D.C.E." /> <Institute title="Institute" display="Yes" value="G.P.G" /> <PassingYear title="Passing Year" display="Yes" value="2005" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 12:45PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 12:45PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="MCSE" /> <Institute title="Institute" display="Yes" value="MCSE" /> <PassingYear title="Passing Year" display="Yes" value="2009" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 6:12PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Mar 2 2010 4:33PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="H.S.C." /> <Institute title="Institute" display="Yes" value="G.H.S.E.B." /> <PassingYear title="Passing Year" display="Yes" value="2002" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 6:17PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 6:17PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="S.S.C." /> <Institute title="Institute" display="Yes" value="G.S.E.B." /> <PassingYear title="Passing Year" display="Yes" value="2000" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 6:17PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 6:17PM " /> </Record> </Fields> </AcademicInfo> <AchievementInfo> <Title value="Achievement Details" /> <Fields> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry" /> <Tournament title="Tournament" display="Yes" value="Test Entry" /> <AwardDescription title="Description" display="Yes" value="Test Entry" /> <AwardYear title="Award Year" display="Yes" value="2002" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 3:51PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 3:51PM " /> </Record> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry" /> <Tournament title="Tournament" display="Yes" value="Test Entry" /> <AwardDescription title="Description" display="Yes" value="Test Entry" /> <AwardYear title="Award Year" display="Yes" value="2005" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 8 2010 10:19AM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 8 2010 10:19AM " /> </Record> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry3" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry3" /> <Tournament title="Tournament" display="Yes" value="Test Entry3" /> <AwardDescription title="Description" display="Yes" value="Test Entry3" /> <AwardYear title="Award Year" display="Yes" value="2007" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 11:47AM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 11:47AM " /> </Record> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry4" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry4" /> <Tournament title="Tournament" display="Yes" value="Test Entry4" /> <AwardDescription title="Description" display="Yes" value="Test Entry3" /> <AwardYear title="Award Year" display="Yes" value="2000" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 11:47AM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 11:47AM " /> </Record> </Fields> </AchievementInfo> <ProfessionalInfo> <Title value="Professional Details" /> <Fields> <Record right="Public"> <Occupation title="Occupation" display="Yes" value="Test Entry" /> <Organization title="Organization" display="Yes" value="Test Entry" /> <ProjectsDescription title="Description" display="Yes" value="Test Entry" /> <Duration title="Duration" display="Yes" value="26" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 4 2010 3:01PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 4 2010 3:01PM " /> </Record> <Record right="Public"> <Occupation title="Occupation" display="Yes" value="Test Entry" /> <Organization title="Organization" display="Yes" value="Test Entry" /> <ProjectsDescription title="Description" display="Yes" value="Test Entry" /> <Duration title="Duration" display="Yes" value="10" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 4 2010 3:01PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 4 2010 3:01PM " /> </Record> <Record right="Public"> <Occupation title="Occupation" display="Yes" value="Test Entry" /> <Organization title="Organization" display="Yes" value="Test Entry" /> <ProjectsDescription title="Description" display="Yes" value="Test Entry" /> <Duration title="Duration" display="Yes" value="15" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 4 2010 3:01PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 4 2010 3:01PM " /> </Record> </Fields> </ProfessionalInfo> </UserProfile> now for tags like PersonalInfo,contactInfo,Address there will be only one record, but for tags like "OtherInfo","academicInfo","ProfessionalInfo" there will be multiple records so in xml there are tags for that. now to edit tags having one record only for one user i did coding like: private void FillFamilyInfoControls(XElement rootElement) { ddlSunsign.DataBind(); XElement parentElement; string xPathQuery = "FamilyInfo/Fields"; parentElement = rootElement.XPathSelectElement(xPathQuery); txtGallantryHistory.Text = parentElement.Element("GallantryHistory").Attribute("value").Value; txtEthinicity.Text = parentElement.Element("Ethinicity").Attribute("value").Value; txtKulDev.Text = parentElement.Element("KulDev").Attribute("value").Value; txtKulDevi.Text = parentElement.Element("KulDevi").Attribute("value").Value; txtCaste.Text = parentElement.Element("Caste").Attribute("value").Value; ddlSunsign.SelectedValue = parentElement.Element("SunSignId").Attribute("value").Value; ddlSunsign.SelectedItem.Text = parentElement.Element("SunSignName").Attribute("value").Value; } private XElement UpdateFamilyInfoXML(XElement rootElement) { XElement parentElement; string xPathQuery = "FamilyInfo/Fields"; parentElement = rootElement.XPathSelectElement(xPathQuery); parentElement.Element("GallantryHistory").Attribute("value").Value = txtGallantryHistory.Text; parentElement.Element("Ethinicity").Attribute("value").Value = txtEthinicity.Text; parentElement.Element("KulDev").Attribute("value").Value = txtKulDev.Text; parentElement.Element("KulDevi").Attribute("value").Value = txtKulDevi.Text; parentElement.Element("Caste").Attribute("value").Value = txtCaste.Text; parentElement.Element("SunSignId").Attribute("value").Value = ddlSunsign.SelectedItem.Value; parentElement.Element("SunSignName").Attribute("value").Value = ddlSunsign.SelectedItem.Text; parentElement.Element("ModifiedBy").Attribute("value").Value = UMSession.CurrentLoggedInUser.UserId.ToString(); parentElement.Element("ModifiedOn").Attribute("value").Value = System.DateTime.Now.ToString(); return rootElement; //rootElement.XPathSelectElement(xPathQuery) = parentElement; } these 2 functions i have used to update xml and to get data from xml and fill into controls. but for the tags where there are multiple records... i am not able to find any solution /control using which i an do it easily. coz my field's value is in attribute named "Value" when in the examples i saw its between opening and closing tag.. i have 2 methods to do so. 1 . i make one page to edit a single record and pass id of record to that page on editing. open the page in iframe on same page to edit and in page_load get data from database for id passed and fill it in control. 2 . i store xml on server as physical file and use it in page i opened in iframe to edit the record. so i am confused... can anybody please guide me that what shpould i do to let user provide interface to edit this xml data/user profile ?

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• Issues with HLSL and lighting

  - by numerical25

  I am trying figure out whats going on with my HLSL code but I have no way of debugging it cause C++ gives off no errors. The application just closes when I run it. I am trying to add lighting to a 3d plane I made. below is my HLSL. The problem consist when my Pixel shader method returns the struct "outColor" . If I change the return value back to the struct "psInput" , everything goes back to working again. My light vectors and colors are at the top of the fx file // PS_INPUT - input variables to the pixel shader // This struct is created and fill in by the // vertex shader cbuffer Variables { matrix Projection; matrix World; float TimeStep; }; struct PS_INPUT { float4 Pos : SV_POSITION; float4 Color : COLOR0; float3 Normal : TEXCOORD0; float3 ViewVector : TEXCOORD1; }; float specpower = 80.0f; float3 camPos = float3(0.0f, 9.0, -256.0f); float3 DirectLightColor = float3(1.0f, 1.0f, 1.0f); float3 DirectLightVector = float3(0.0f, 0.602f, 0.70f); float3 AmbientLightColor = float3(1.0f, 1.0f, 1.0f); /*************************************** * Lighting functions ***************************************/ /********************************* * CalculateAmbient - * inputs - * vKa material's reflective color * lightColor - the ambient color of the lightsource * output - ambient color *********************************/ float3 CalculateAmbient(float3 vKa, float3 lightColor) { float3 vAmbient = vKa * lightColor; return vAmbient; } /********************************* * CalculateDiffuse - * inputs - * material color * The color of the direct light * the local normal * the vector of the direct light * output - difuse color *********************************/ float3 CalculateDiffuse(float3 baseColor, float3 lightColor, float3 normal, float3 lightVector) { float3 vDiffuse = baseColor * lightColor * saturate(dot(normal, lightVector)); return vDiffuse; } /********************************* * CalculateSpecular - * inputs - * viewVector * the direct light vector * the normal * output - specular highlight *********************************/ float CalculateSpecular(float3 viewVector, float3 lightVector, float3 normal) { float3 vReflect = reflect(lightVector, normal); float fSpecular = saturate(dot(vReflect, viewVector)); fSpecular = pow(fSpecular, specpower); return fSpecular; } /********************************* * LightingCombine - * inputs - * ambient component * diffuse component * specualr component * output - phong color color *********************************/ float3 LightingCombine(float3 vAmbient, float3 vDiffuse, float fSpecular) { float3 vCombined = vAmbient + vDiffuse + fSpecular.xxx; return vCombined; } //////////////////////////////////////////////// // Vertex Shader - Main Function /////////////////////////////////////////////// PS_INPUT VS(float4 Pos : POSITION, float4 Color : COLOR, float3 Normal : NORMAL) { PS_INPUT psInput; float4 newPosition; newPosition = Pos; newPosition.y = sin((newPosition.x * TimeStep) + (newPosition.z / 3.0f)) * 5.0f; // Pass through both the position and the color psInput.Pos = mul(newPosition , Projection ); psInput.Color = Color; psInput.ViewVector = normalize(camPos - psInput.Pos); return psInput; } /////////////////////////////////////////////// // Pixel Shader /////////////////////////////////////////////// //Anthony!!!!!!!!!!! Find out how color works when multiplying them float4 PS(PS_INPUT psInput) : SV_Target { float3 normal = -normalize(psInput.Normal); float3 vAmbient = CalculateAmbient(psInput.Color, AmbientLightColor); float3 vDiffuse = CalculateDiffuse(psInput.Color, DirectLightColor, normal, DirectLightVector); float fSpecular = CalculateSpecular(psInput.ViewVector, DirectLightVector, normal); float4 outColor; outColor.rgb = LightingCombine(vAmbient, vDiffuse, fSpecular); outColor.a = 1.0f; //Below is where the error begins return outColor; } // Define the technique technique10 Render { pass P0 { SetVertexShader( CompileShader( vs_4_0, VS() ) ); SetGeometryShader( NULL ); SetPixelShader( CompileShader( ps_4_0, PS() ) ); } } Below is some of my c++ code. Reason I am showing this is because it is pretty much what creates the surface normals for my shaders to evaluate. for the lighting for(int z=0; z < NUM_ROWS; ++z) { for(int x = 0; x < NUM_COLS; ++x) { int curVertex = x + (z * NUM_VERTSX); indices[curIndex] = curVertex; indices[curIndex + 1] = curVertex + NUM_VERTSX; indices[curIndex + 2] = curVertex + 1; D3DXVECTOR3 v0 = vertices[indices[curIndex]].pos; D3DXVECTOR3 v1 = vertices[indices[curIndex + 1]].pos; D3DXVECTOR3 v2 = vertices[indices[curIndex + 2]].pos; D3DXVECTOR3 normal; D3DXVECTOR3 cross; D3DXVec3Cross(&cross, &D3DXVECTOR3(v2 - v0),&D3DXVECTOR3(v1 - v0)); D3DXVec3Normalize(&normal, &cross); vertices[indices[curIndex]].normal = normal; vertices[indices[curIndex + 1]].normal = normal; vertices[indices[curIndex + 2]].normal = normal; indices[curIndex + 3] = curVertex + 1; indices[curIndex + 4] = curVertex + NUM_VERTSX; indices[curIndex + 5] = curVertex + NUM_VERTSX + 1; v0 = vertices[indices[curIndex + 3]].pos; v1 = vertices[indices[curIndex + 4]].pos; v2 = vertices[indices[curIndex + 5]].pos; D3DXVec3Cross(&cross, &D3DXVECTOR3(v2 - v0),&D3DXVECTOR3(v1 - v0)); D3DXVec3Normalize(&normal, &cross); vertices[indices[curIndex + 3]].normal = normal; vertices[indices[curIndex + 4]].normal = normal; vertices[indices[curIndex + 5]].normal = normal; curIndex += 6; } } and below is my c++ code, in it's entirety. showing the drawing and also calling on the passes #include "MyGame.h" //#include "CubeVector.h" /* This code sets a projection and shows a turning cube. What has been added is the project, rotation and a rasterizer to change the rasterization of the cube. The issue that was going on was something with the effect file which was causing the vertices not to be rendered correctly.*/ typedef struct { ID3D10Effect* pEffect; ID3D10EffectTechnique* pTechnique; //vertex information ID3D10Buffer* pVertexBuffer; ID3D10Buffer* pIndicesBuffer; ID3D10InputLayout* pVertexLayout; UINT numVertices; UINT numIndices; }ModelObject; ModelObject modelObject; // World Matrix D3DXMATRIX WorldMatrix; // View Matrix D3DXMATRIX ViewMatrix; // Projection Matrix D3DXMATRIX ProjectionMatrix; ID3D10EffectMatrixVariable* pProjectionMatrixVariable = NULL; //grid information #define NUM_COLS 16 #define NUM_ROWS 16 #define CELL_WIDTH 32 #define CELL_HEIGHT 32 #define NUM_VERTSX (NUM_COLS + 1) #define NUM_VERTSY (NUM_ROWS + 1) // timer variables LARGE_INTEGER timeStart; LARGE_INTEGER timeEnd; LARGE_INTEGER timerFreq; double currentTime; float anim_rate; // Variable to hold how long since last frame change float lastElaspedFrame = 0; // How long should the frames last float frameDuration = 0.5; bool MyGame::InitDirect3D() { if(!DX3dApp::InitDirect3D()) { return false; } // Get the timer frequency QueryPerformanceFrequency(&timerFreq); float freqSeconds = 1.0f / timerFreq.QuadPart; lastElaspedFrame = 0; D3D10_RASTERIZER_DESC rastDesc; rastDesc.FillMode = D3D10_FILL_WIREFRAME; rastDesc.CullMode = D3D10_CULL_FRONT; rastDesc.FrontCounterClockwise = true; rastDesc.DepthBias = false; rastDesc.DepthBiasClamp = 0; rastDesc.SlopeScaledDepthBias = 0; rastDesc.DepthClipEnable = false; rastDesc.ScissorEnable = false; rastDesc.MultisampleEnable = false; rastDesc.AntialiasedLineEnable = false; ID3D10RasterizerState *g_pRasterizerState; mpD3DDevice->CreateRasterizerState(&rastDesc, &g_pRasterizerState); mpD3DDevice->RSSetState(g_pRasterizerState); // Set up the World Matrix D3DXMatrixIdentity(&WorldMatrix); D3DXMatrixLookAtLH(&ViewMatrix, new D3DXVECTOR3(200.0f, 60.0f, -20.0f), new D3DXVECTOR3(200.0f, 50.0f, 0.0f), new D3DXVECTOR3(0.0f, 1.0f, 0.0f)); // Set up the projection matrix D3DXMatrixPerspectiveFovLH(&ProjectionMatrix, (float)D3DX_PI * 0.5f, (float)mWidth/(float)mHeight, 0.1f, 100.0f); pTimeVariable = NULL; if(!CreateObject()) { return false; } return true; } //These are actions that take place after the clearing of the buffer and before the present void MyGame::GameDraw() { static float rotationAngle = 0.0f; // create the rotation matrix using the rotation angle D3DXMatrixRotationY(&WorldMatrix, rotationAngle); rotationAngle += (float)D3DX_PI * 0.0f; // Set the input layout mpD3DDevice->IASetInputLayout(modelObject.pVertexLayout); // Set vertex buffer UINT stride = sizeof(VertexPos); UINT offset = 0; mpD3DDevice->IASetVertexBuffers(0, 1, &modelObject.pVertexBuffer, &stride, &offset); mpD3DDevice->IASetIndexBuffer(modelObject.pIndicesBuffer, DXGI_FORMAT_R32_UINT, 0); pTimeVariable->SetFloat((float)currentTime); // Set primitive topology mpD3DDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST); // Combine and send the final matrix to the shader D3DXMATRIX finalMatrix = (WorldMatrix * ViewMatrix * ProjectionMatrix); pProjectionMatrixVariable->SetMatrix((float*)&finalMatrix); // make sure modelObject is valid // Render a model object D3D10_TECHNIQUE_DESC techniqueDescription; modelObject.pTechnique->GetDesc(&techniqueDescription); // Loop through the technique passes for(UINT p=0; p < techniqueDescription.Passes; ++p) { modelObject.pTechnique->GetPassByIndex(p)->Apply(0); // draw the cube using all 36 vertices and 12 triangles mpD3DDevice->DrawIndexed(modelObject.numIndices,0,0); } } //Render actually incapsulates Gamedraw, so you can call data before you actually clear the buffer or after you //present data void MyGame::Render() { // Get the start timer count QueryPerformanceCounter(&timeStart); currentTime += anim_rate; DX3dApp::Render(); QueryPerformanceCounter(&timeEnd); anim_rate = ( (float)timeEnd.QuadPart - (float)timeStart.QuadPart ) / timerFreq.QuadPart; } bool MyGame::CreateObject() { VertexPos vertices[NUM_VERTSX * NUM_VERTSY]; for(int z=0; z < NUM_VERTSY; ++z) { for(int x = 0; x < NUM_VERTSX; ++x) { vertices[x + z * NUM_VERTSX].pos.x = (float)x * CELL_WIDTH; vertices[x + z * NUM_VERTSX].pos.z = (float)z * CELL_HEIGHT; vertices[x + z * NUM_VERTSX].pos.y = (float)(rand() % CELL_HEIGHT); vertices[x + z * NUM_VERTSX].color = D3DXVECTOR4(1.0, 0.0f, 0.0f, 0.0f); } } DWORD indices[NUM_VERTSX * NUM_VERTSY * 6]; int curIndex = 0; for(int z=0; z < NUM_ROWS; ++z) { for(int x = 0; x < NUM_COLS; ++x) { int curVertex = x + (z * NUM_VERTSX); indices[curIndex] = curVertex; indices[curIndex + 1] = curVertex + NUM_VERTSX; indices[curIndex + 2] = curVertex + 1; D3DXVECTOR3 v0 = vertices[indices[curIndex]].pos; D3DXVECTOR3 v1 = vertices[indices[curIndex + 1]].pos; D3DXVECTOR3 v2 = vertices[indices[curIndex + 2]].pos; D3DXVECTOR3 normal; D3DXVECTOR3 cross; D3DXVec3Cross(&cross, &D3DXVECTOR3(v2 - v0),&D3DXVECTOR3(v1 - v0)); D3DXVec3Normalize(&normal, &cross); vertices[indices[curIndex]].normal = normal; vertices[indices[curIndex + 1]].normal = normal; vertices[indices[curIndex + 2]].normal = normal; indices[curIndex + 3] = curVertex + 1; indices[curIndex + 4] = curVertex + NUM_VERTSX; indices[curIndex + 5] = curVertex + NUM_VERTSX + 1; v0 = vertices[indices[curIndex + 3]].pos; v1 = vertices[indices[curIndex + 4]].pos; v2 = vertices[indices[curIndex + 5]].pos; D3DXVec3Cross(&cross, &D3DXVECTOR3(v2 - v0),&D3DXVECTOR3(v1 - v0)); D3DXVec3Normalize(&normal, &cross); vertices[indices[curIndex + 3]].normal = normal; vertices[indices[curIndex + 4]].normal = normal; vertices[indices[curIndex + 5]].normal = normal; curIndex += 6; } } //Create Layout D3D10_INPUT_ELEMENT_DESC layout[] = { {"POSITION",0,DXGI_FORMAT_R32G32B32_FLOAT, 0 , 0, D3D10_INPUT_PER_VERTEX_DATA, 0}, {"COLOR",0,DXGI_FORMAT_R32G32B32A32_FLOAT, 0 , 12, D3D10_INPUT_PER_VERTEX_DATA, 0}, {"NORMAL",0,DXGI_FORMAT_R32G32B32A32_FLOAT, 0 , 28, D3D10_INPUT_PER_VERTEX_DATA, 0} }; UINT numElements = (sizeof(layout)/sizeof(layout[0])); modelObject.numVertices = sizeof(vertices)/sizeof(VertexPos); //Create buffer desc D3D10_BUFFER_DESC bufferDesc; bufferDesc.Usage = D3D10_USAGE_DEFAULT; bufferDesc.ByteWidth = sizeof(VertexPos) * modelObject.numVertices; bufferDesc.BindFlags = D3D10_BIND_VERTEX_BUFFER; bufferDesc.CPUAccessFlags = 0; bufferDesc.MiscFlags = 0; D3D10_SUBRESOURCE_DATA initData; initData.pSysMem = vertices; //Create the buffer HRESULT hr = mpD3DDevice->CreateBuffer(&bufferDesc, &initData, &modelObject.pVertexBuffer); if(FAILED(hr)) return false; modelObject.numIndices = sizeof(indices)/sizeof(DWORD); bufferDesc.ByteWidth = sizeof(DWORD) * modelObject.numIndices; bufferDesc.BindFlags = D3D10_BIND_INDEX_BUFFER; initData.pSysMem = indices; hr = mpD3DDevice->CreateBuffer(&bufferDesc, &initData, &modelObject.pIndicesBuffer); if(FAILED(hr)) return false; ///////////////////////////////////////////////////////////////////////////// //Set up fx files LPCWSTR effectFilename = L"effect.fx"; modelObject.pEffect = NULL; hr = D3DX10CreateEffectFromFile(effectFilename, NULL, NULL, "fx_4_0", D3D10_SHADER_ENABLE_STRICTNESS, 0, mpD3DDevice, NULL, NULL, &modelObject.pEffect, NULL, NULL); if(FAILED(hr)) return false; pProjectionMatrixVariable = modelObject.pEffect->GetVariableByName("Projection")->AsMatrix(); pTimeVariable = modelObject.pEffect->GetVariableByName("TimeStep")->AsScalar(); //Dont sweat the technique. Get it! LPCSTR effectTechniqueName = "Render"; modelObject.pTechnique = modelObject.pEffect->GetTechniqueByName(effectTechniqueName); if(modelObject.pTechnique == NULL) return false; //Create Vertex layout D3D10_PASS_DESC passDesc; modelObject.pTechnique->GetPassByIndex(0)->GetDesc(&passDesc); hr = mpD3DDevice->CreateInputLayout(layout, numElements, passDesc.pIAInputSignature, passDesc.IAInputSignatureSize, &modelObject.pVertexLayout); if(FAILED(hr)) return false; return true; }

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• how to do gedcom import with minimal database roundtrip. what is best practice for this kind of dev

  - by Radhi

  In My current application, I need to import users from gedcom file. these users may exist in my registered users or i need to create one registered user for the same. now gedcom file contain s many information e.g. PersonalDetails,Addresses, Education Details, ProfessionalDetails this is one sample of xml file we are storing to store user's profile. <UserProfile xmlns=""> <BasicInfo> <Title value="Basic Details" /> <Fields> <UserId title="UserId" right="Public" value="151" /> <EmailAddress title="Email Address" right="CUG" value="[email protected]" /> <FirstName title="First Name" right="Public" value="Anju" /> <LastName title="Last Name" right="Public" value="Trivedi" /> <DisplayName title="Display Name" right="Private" value="Anju" /> <RegistrationStatusId title="RegistrationStatusId" right="Public" value="10" /> <RegistrationStatus title="Registration Status" right="Private" value="Registered" /> <CityId title="CityId" right="Private" value="19" /> <CityName title="City" right="Public" value="Delhi" /> <StateId title="StateId" right="Private" value="69" /> <StateName title="State" right="Public" value="Delhi" /> <CountryId title="CountryId" right="Private" value="109" /> <CountryName title="Country" right="Public" value="India" /> <Gender title="Gender" right="Private" value="Male" /> <CreatedBy title="CreatedBy" right="Public" value="0" /> <CreatedOn title="CreatedOn" right="Public" value="Nov 27 2009 3:08PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="13" /> <ModifiedOn title="ModifiedOn" right="Public" value="Mar 3 2010 6:56PM " /> <LogInStatusId title="LogInStatusId" right="Public" value="1" /> <LogInStatus title="LogIn Status" right="Private" value="Free" /> <ProfileImagePath title="Profile Pic" right="Public" value="~/Images/13_HolidayBarbie07CL2010427143129.jpg" /> <ProfileThumbnailPath title="Profile Thumbnail" right="Public" value="~/Images/Thumb13_HolidayBarbie07CL2010427143129.jpg" /> </Fields> </BasicInfo> <PersonalInfo> <Title value="Personal Details" /> <Fields> <Nickname title="Nick Name" right="Public" value="Anju" /> <NativeLocation title="Native" right="Public" value="Mehsana" /> <DateofAnniversary title="Anniversary Dt." right="Private" value="4/1/2010" /> <BloodGroupId title="BloodGroupId" right="Public" value="24" /> <BloodGroupName title="Blood Group" right="Public" value="A+" /> <MaritalStatusId title="MaritalStatusId" right="Private" value="35" /> <MaritalStatusName title="Marital status" right="Private" value="UnMarried" /> <DateofDeath title="Death dt" right="Private" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="13" /> <ModifiedOn title="ModifiedOn" right="Public" value="4/27/2010 2:32:07 PM" /> <DateOfBirth title="Birth Date" value="" right="CUG" /> <BirthPlace title="Birth Place" value="Jaipur" right="Private" /> </Fields> </PersonalInfo> <FamilyInfo> <Title value="Family Details" /> <Fields> <GallantryHistory title="Gallantry History" right="Public" value="Anjli History" /> <Ethinicity title="Ethinicity" right="Public" value="Indian" /> <KulDev title="KulDev" right="Public" value="Krishna" /> <KulDevi title="KulDevi" right="Public" value="Lakhsmi" /> <Caste title="Caste" right="Private" value="Vaishnav" /> <SunSignId title="SunSignId" right="Public" value="15" /> <SunSignName title="SunSignName" right="Public" value="Gemini" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Dec 11 2009 12:00AM " /> <ModifiedBy title="ModifiedBy" right="Public" value="13" /> <ModifiedOn title="ModifiedOn" right="Public" value="Dec 11 2009 12:00AM " /> </Fields> </FamilyInfo> <HobbyInfo> <Title value="Hobbies/Interests" /> <Fields> <AbountMe title="Abount Me" right="Public" value="" /> <Hobbies title="Hobbies" right="Public" value="" /> <Food title="Food" right="Public" value="" /> <Movies title="Movies" right="Public" value="" /> <Music title="Music" right="Public" value="" /> <TVShows title="TV Shows" right="Public" value="" /> <Books title="Books" right="Public" value="" /> <Sports title="Sports" right="Public" value="" /> <Will title="Will" right="Public" value="" /> <FavouriteQuotes title="Favourite Quotes" right="Public" value="" /> <CremationPrefernces title="Cremation Prefernces" right="Public" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="" /> <ModifiedOn title="ModifiedOn" right="Public" value="" /> </Fields> </HobbyInfo> <PermenantAddr> <Title value="Permenant Address" /> <Fields> <Address title="Address" right="Public" value="Select" /> <CityId title="CityId" right="Public" value="116" /> <CityName title="City" right="Public" value="Iran" /> <StateId title="StateId" right="Public" value="95" /> <StateName title="State" right="Public" value="Iran" /> <CountryId title="CountryId" right="Public" value="7" /> <CountryName title="Country" right="Public" value="Afghanistan" /> <ZipCode title="ZipCode" right="Private" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="13" /> <ModifiedOn title="ModifiedOn" right="Public" value="4/6/2010 10:48:39 AM" /> </Fields> </PermenantAddr> <PresentAddr> <Title value="Present Address" /> <Fields> <Address title="Address" right="Public" value="Select" /> <CityId title="CityId" right="Public" value="1" /> <CityName title="City" right="Public" value="Select" /> <StateId title="StateId" right="Public" value="1" /> <StateName title="State" right="Public" value="Select" /> <CountryId title="CountryId" right="Public" value="1" /> <CountryName title="Country" right="Public" value="Select" /> <ZipCode title="ZipCode" right="Private" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="" /> <ModifiedOn title="ModifiedOn" right="Public" value="" /> </Fields> </PresentAddr> <ContactInfo> <Title value="Contact Details" /> <Fields> <DayPhoneNo title="Day Phone" right="Public" value="" /> <NightPhoneNo title="Night Phone" right="Public" value="" /> <MobileNo title="Mobile No" right="Private" value="" /> <FaxNo title="Fax No" right="CUG" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="" /> <ModifiedOn title="ModifiedOn" right="Public" value="" /> </Fields> </ContactInfo> <EmailInfo> <Title value="Alternate Email Addresses" /> <Fields> <Record right="Public"> <Id title="Id" right="Public" value="3" /> <Provider title="Provider" right="Public" value="google" /> <EmailAddress title="Email Address" right="Public" value="[email protected]" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Mar 3 2010 10:17AM " /> <ModifiedBy title="ModifiedBy" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" right="Public" value=" " /> </Record> <Record right="Public"> <Id title="Id" right="Public" value="4" /> <Provider title="Provider" right="Public" value="Yahoo" /> <EmailAddress title="Email Address" right="Public" value="[email protected]" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Mar 3 2010 6:53PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" right="Public" value=" " /> </Record> <Record right="Private"> <Provider value="111" right="Private" /> <EmailAddress value="[email protected]" right="Private" /> <Id value="5" /> <IsActive value="true" right="Private" /> <ModifiedBy value="13" right="Private" /> <ModifiedOn value="Tuesday, March 16, 2010" right="Private" /> </Record> </Fields> </EmailInfo> <AcademicInfo> <Title value="Education Details" /> <Fields> <Record right="Public"> <Id title="Id" right="Public" value="0" /> <Education title="Education" right="Public" value="" /> <Institute title="Institute" right="Public" value="" /> <PassingYear title="Passing Year" right="Public" value="" /> <IsActive title="IsActive" right="Public" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="" /> <ModifiedOn title="ModifiedOn" right="Public" value="" /> </Record> </Fields> </AcademicInfo> <AchievementInfo> <Title value="Achievement Details" /> <Fields> <Record right="Public"> <Id title="Id" right="Public" value="0" /> <Awards title="Award" right="Public" value="" /> <FieldOfAward title="Field Of Award" right="Public" value="" /> <Tournament title="Tournament" right="Public" value="" /> <AwardDescription title="Description" right="Public" value="" /> <AwardYear title="Award Year" right="Public" value="" /> <IsActive title="IsActive" right="Public" value="" /> <CreatedBy title="CreatedBy" right="Public" value="" /> <CreatedOn title="CreatedOn" right="Public" value="" /> <ModifiedBy title="ModifiedBy" right="Public" value="" /> <ModifiedOn title="ModifiedOn" right="Public" value="" /> </Record> </Fields> </AchievementInfo> <ProfessionalInfo> <Title value="Professional Details" /> <Fields> <Record right="Public"> <Id title="Id" right="Public" value="4" /> <Occupation title="Occupation" right="Public" value="a" /> <Organization title="Organization" right="Public" value="a" /> <ProjectsDescription title="Description" right="Public" value="a" /> <Duration title="Duration" right="Public" value="2" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Jan 7 2010 1:14PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="13" /> <ModifiedOn title="ModifiedOn" right="Public" value="Jan 7 2010 1:14PM " /> </Record> <Record right="Public"> <Id title="Id" right="Public" value="5" /> <Occupation title="Occupation" right="Public" value="ab" /> <Organization title="Organization" right="Public" value="zsd" /> <ProjectsDescription title="Description" right="Public" value="sd" /> <Duration title="Duration" right="Public" value="5" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Jan 7 2010 1:15PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="13" /> <ModifiedOn title="ModifiedOn" right="Public" value="Jan 7 2010 1:15PM " /> </Record> <Record right="Public"> <Id title="Id" right="Public" value="8" /> <Occupation title="Occupation" right="Public" value="fgdf" /> <Organization title="Organization" right="Public" value="gdfg" /> <ProjectsDescription title="Description" right="Public" value="dfgdf" /> <Duration title="Duration" right="Public" value="12" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Feb 22 2010 5:07PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" right="Public" value="Jan 1 1900 12:00AM " /> </Record> <Record right="Public"> <Id title="Id" right="Public" value="9" /> <Occupation title="Occupation" right="Public" value="fgdf" /> <Organization title="Organization" right="Public" value="gdfg" /> <ProjectsDescription title="Description" right="Public" value="dfgdf" /> <Duration title="Duration" right="Public" value="12" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Feb 22 2010 5:11PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" right="Public" value="Jan 1 1900 12:00AM " /> </Record> <Record right="Public"> <Id title="Id" right="Public" value="10" /> <Occupation title="Occupation" right="Public" value="fgdf" /> <Organization title="Organization" right="Public" value="gdfg" /> <ProjectsDescription title="Description" right="Public" value="dfgdf" /> <Duration title="Duration" right="Public" value="12" /> <IsActive title="IsActive" right="Public" value="false" /> <CreatedBy title="CreatedBy" right="Public" value="13" /> <CreatedOn title="CreatedOn" right="Public" value="Feb 22 2010 5:13PM " /> <ModifiedBy title="ModifiedBy" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" right="Public" value="Jan 1 1900 12:00AM " /> </Record> </Fields> </ProfessionalInfo> <SecuritySettings> <AlbumRights> <Create value="Private" /> <View value="CUG" /> <Edit value="CUG" /> <Delete value="CUG" /> <PostComments value="CUG" /> <AddToAlbum value="CUG" /> </AlbumRights> <ImageRights> <Create value="Private" /> <View value="CUG" /> <Edit value="CUG" /> <Delete value="CUG" /> <PostComments value="Private" /> </ImageRights> </SecuritySettings> </UserProfile> now when i am importing data from gedcom, i am creating one person object which contains all this info. but before i insert it itodatabase have to check if userid exist for the emailaddress dont update data else create a user and update its profilexml from data fecthed from gedcom. for this i think i need some soln by which i can do only one roundtrip to database and can update all user's xml. or i can execute one sp to get userid from all users where i'll check if user exist then return userid else insert basic data and return inserted userid then for every user make xml from data and update it. please provide be suggestion what is best practice to do this kind of development. if need any more details please write me

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• game speed problem

  - by Meko

  HI..I made a little game.But this game works on every computer with different speed.I think it is about resolution.I used every thing in paintcomponent.and If I change screen size the game goes slower or faster.And if i run this game on another computer wich has different resolution it also works different. This is my game http://rapidshare.com/files/364597095/ShooterGame.2.6.0.jar and here code public class Shooter extends JFrame implements KeyListener, Runnable { JFrame frame = new JFrame(); String player; Font startFont, startSubFont, timerFont,healthFont; Image img; Image backGround; Graphics dbi; URL url1 = this.getClass().getResource("Images/p2.gif"); URL url2 = this.getClass().getResource("Images/p3.gif"); URL url3 = this.getClass().getResource("Images/p1.gif"); URL url4 = this.getClass().getResource("Images/p4.gif"); URL urlMap = this.getClass().getResource("Images/zemin.jpg"); Player p1 = new Player(5, 150, 10, 40, Color.GREEN, url3); Computer p2 = new Computer(750, 150, 10, 40, Color.BLUE, url1); Computer p3 = new Computer(0, 0, 10, 40, Color.BLUE, url2); Computer p4 = new Computer(0, 0, 10, 40, Color.BLUE, url4); ArrayList<Bullets> b = new ArrayList<Bullets>(); ArrayList<CBullets> cb = new ArrayList<CBullets>(); Thread sheap; boolean a, d, w, s; boolean toUp, toDown; boolean GameOver; boolean Level2; boolean newGame, resart, pause; int S, E; int random; int cbSpeed = 0; long timeStart, timeEnd; int timeElapsed; long GameStart, GameEnd; int GameScore; int Timer = 0; int timerStart, timerEnd; public Shooter() { sheap = new Thread(this); sheap.start(); startFont = new Font("Tiresias PCFont Z", Font.BOLD + Font.ITALIC, 32); startSubFont = new Font("Tiresias PCFont Z", Font.BOLD + Font.ITALIC, 25); timerFont = new Font("Tiresias PCFont Z", Font.BOLD + Font.ITALIC, 16); healthFont = new Font("Tiresias PCFont Z", Font.BOLD + Font.ITALIC, 16); setTitle("Shooter 2.5.1"); setBounds(350, 250, 800, 600); // setResizable(false); setBackground(Color.black); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); addKeyListener(this); a = d = w = s = false; toUp = toDown = true; GameOver = true; newGame = true; Level2 = false; S = E = 0; setVisible(true); } public void paint(Graphics g) { img = createImage(getWidth(), getHeight()); dbi = img.getGraphics(); paintComponent(dbi); g.drawImage(img, 0, 0, this); } public void paintComponent(Graphics g) { repaint(); timeStart = System.currentTimeMillis(); backGround = Toolkit.getDefaultToolkit().getImage(urlMap); g.drawImage(backGround, 0, 0, null); g.setColor(Color.red); g.setFont(healthFont); g.drawString("" + player + " Health : " + p1.health, 30, 50); g.setColor(Color.red); g.drawString("Computer Health : " + (p2.health + p3.health + p4.health), 600, 50); g.setColor(Color.BLUE); g.setFont(timerFont); g.drawString("Time : " + Timer, 330, 50); if (newGame) { g.setColor(Color.LIGHT_GRAY); g.setFont(startFont); g.drawString("Well Come To Shoot Game", 200, 190); g.drawString("Press ENTER To Start", 250, 220); g.setColor(Color.LIGHT_GRAY); g.setFont(startSubFont); g.drawString("Use W,A,S,D and Space For Fire", 200, 250); g.drawString("GOOD LUCK", 250, 280); newGame(); } if (!GameOver) { for (Bullets b1 : b) { b1.draw(g); } for (CBullets b2 : cb) { b2.draw(g); } update(); // Here MOvements for Player and For Fires } if (p1.health <= 0) { g.setColor(p2.col); g.setFont(startFont); g.drawString("Computer Wins ", 200, 190); g.drawString("Press Key R to Restart ", 200, 220); GameOver = true; } else if (p2.health <= 0 && p3.health <= 0 && p4.health <= 0) { g.setColor(p1.col); g.setFont(startFont); g.drawString(""+player+" Wins ", 200, 190); g.drawString("Press Key R to Resart ", 200, 220); GameOver = true; g.setColor(Color.MAGENTA); g.drawString(""+player+"`s Score is " + Timer, 200, 120); } if (Level2) { if (p3.health >= 0) { p3.draw(g); for (CBullets b3 : cb) { b3.draw(g); } } else { p3.x = 1000; } if (p4.health >= 0) { p4.draw(g); for (CBullets b4 : cb) { b4.draw(g); } } else { p4.x = 1000; } } if (p1.health >= 0) { p1.draw(g); } if (p2.health >= 0) { p2.draw(g); } else { p2.x = 1000; } } public void update() { if (w && p1.y > 54) { p1.moveUp(); } if (s && p1.y < 547) { p1.moveDown(); } if (a && p1.x > 0) { p1.moveLeft(); } if (d && p1.x < 200) { p1.moveRight(); } random = 1 * (int) (Math.random() * 100); if (random > 96) { if (p2.health >= 0) { CBullets bo = p2.getCBull(); bo.xVel =-1-cbSpeed; cb.add(bo); } if (Level2) { if (p3.health >= 0) { CBullets bo1 = p3.getCBull(); bo1.xVel = -2-cbSpeed; cb.add(bo1); } if (p4.health >= 0) { CBullets bo2 = p4.getCBull(); bo2.xVel = -4-cbSpeed; cb.add(bo2); } } } if (S == 1) { if (p1.health >= 0) { Bullets bu = p1.getBull(); bu.xVel = 5; b.add(bu); S += 1; } } //Here Also Problem .. When COmputer have More fire then it gaves Array Exeption . Or Player have More Fire for (int i = cb.size() -1; i = 0 ; i--) { boolean bremoved = false; for (int j = b.size() -1 ; j =0 ; j--) { if (b.get(j).rect.intersects(cb.get(i).rect) || cb.get(i).rect.intersects(b.get(j).rect)) { bremoved = true; b.remove(j); } } if(bremoved) cb.remove(i); } for (int i = 0; i < b.size(); i++) { b.get(i).move(); if (b.get(i).rect.intersects(p2.rect)) { if (p2.health >= 0) { p2.health--; b.remove(i); // System.out.println("Hited P2"); i--; continue; } } if (b.get(i).rect.intersects(p3.rect)) { if (p3.health >= 0) { p3.health--; b.remove(i); // System.out.println("Hited P3"); i--; continue; } } if (b.get(i).rect.intersects(p4.rect)) { if (p4.health >= 0) { p4.health--; b.remove(i); // System.out.println("Hited P4"); i--; continue; } } if (b.get(i).rect.x > 790) { b.remove(i); } } for (int j = 0; j < cb.size(); j++) { cb.get(j).move(); if (cb.get(j).rect.intersects(p1.rect) && cb.get(j).xVel < 0) { p1.health--; cb.remove(j); j--; continue; } } timeEnd = System.currentTimeMillis(); timeElapsed = (int) (timeEnd - timeStart); } public void level2() { if (p2.health <= 10) { Level2 = true; cbSpeed = 4; p3.x = 750; p4.x = 750; p2.speed = 10; p3.speed = 20; p4.speed = 30; } } public void keyTyped(KeyEvent e) { } public void keyPressed(KeyEvent e) { switch (e.getKeyCode()) { case KeyEvent.VK_ENTER: newGame = false; break; case KeyEvent.VK_P: pause = true; break; case KeyEvent.VK_R: resart = true; break; case KeyEvent.VK_A: a = true; break; case KeyEvent.VK_D: d = true; break; case KeyEvent.VK_W: w = true; break; case KeyEvent.VK_S: s = true; break; case KeyEvent.VK_SPACE: S += 1; break; } } public void keyReleased(KeyEvent e) { switch (e.getKeyCode()) { case KeyEvent.VK_A: a = false; break; case KeyEvent.VK_D: d = false; break; case KeyEvent.VK_W: w = false; break; case KeyEvent.VK_S: s = false; break; case KeyEvent.VK_SPACE: S = 0; break; } } public void newGame() { p1.health = 20; p2.health = 20; p3.health = 20; p4.health = 20; p3.x = 0; p4.x = 0; p2.x = 750; Level2 = false; cbSpeed = 0; p2.speed = 9; b.removeAll(b); cb.removeAll(cb); timerStart = (int) System.currentTimeMillis(); GameOver = false; } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { KeyListener k = new Shooter(); } }); } @Override public void run() { player = JOptionPane.showInputDialog(frame, "Enter Player Name", "New Player", JOptionPane.DEFAULT_OPTION); while (true) { timerEnd = (int) System.currentTimeMillis(); if (resart) { newGame(); resart = false; } if (pause) { Thread.currentThread().notify(); } try { if (!GameOver) { Timer = timerEnd - timerStart; level2(); if (p1.y < p2.y && p2.y60) { p2.moveUp(); } if (p1.y < p3.y && p3.y43) { p3.moveUp(); } if (p1.y < p4.y && p4.y43) { p4.moveUp(); } if (p1.y > p2.y && p2.y<535) { p2.moveDown(); } if (p1.y > p3.y && p3.y<535) { p3.moveDown(); } if (p1.y > p4.y && p4.y<530) { p4.moveDown(); } } if (timeElapsed < 125) { Thread.currentThread().sleep(125); } } catch (InterruptedException ex) { System.out.print("FInished"); } } } }

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• The application called an interface that was marshalled for a different thread

  - by X-Ray

  i'm writing a delphi app that communicates with excel. one thing i noticed is that if i call the Save method on the Excel workbook object, it can appear to hang because excel has a dialog box open for the user. i'm using the late binding. i'd like for my app to be able to notice when Save takes several seconds and then take some kind of action like show a dialog box telling this is what's happening. i figured this'd be fairly easy. all i'd need to do is create a thread that calls Save and have that thread call Excel's Save routine. if it takes too long, i can take some action. procedure TOfficeConnect.Save; var Thread:TOfficeHangThread; begin // spin off as thread so we can control timeout Thread:=TOfficeSaveThread.Create(m_vExcelWorkbook); if WaitForSingleObject(Thread.Handle, 5 {s} * 1000 {ms/s})=WAIT_TIMEOUT then begin Thread.FreeOnTerminate:=true; raise Exception.Create(_('The Office spreadsheet program seems to be busy.')); end; Thread.Free; end; TOfficeSaveThread = class(TThread) private { Private declarations } m_vExcelWorkbook:variant; protected procedure Execute; override; procedure DoSave; public constructor Create(vExcelWorkbook:variant); end; { TOfficeSaveThread } constructor TOfficeSaveThread.Create(vExcelWorkbook:variant); begin inherited Create(true); m_vExcelWorkbook:=vExcelWorkbook; Resume; end; procedure TOfficeSaveThread.Execute; begin m_vExcelWorkbook.Save; end; i understand this problem happens because the OLE object was created from another thread (absolutely). how can i get around this problem? most likely i'll need to "re-marshall" for this call somehow... any ideas? thank you!

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• MSBuild: convert relative path in imported project to absolute path.

  - by Ergwun

  Short version: I have an MSBuild project that imports another project. There is a property holding a relative path in the imported project that is relative to the location of the imported project. How do I convert this relative path to be absolute? I've tried the ConvertToAbsolutePath task, but this makes it relative to the importing project's location). Long version: I'm trying out Robert Koritnik's MSBuild task for integrating nunit output into Visual Studio (see this other SO question for a link). Since I like to have all my tools under version control, I want the target file with the custom task in it to point to the nunit console application using a relative path. My problem is that this relative path ends up being made relative to the importing project. E.g. (in ... MyRepository\Third Party\NUnit\MSBuild.NUnit.Task.Source\bin\Release\MSBuild.NUnit.Task.Targets): ... <PropertyGroup Condition="'$(NUnitConsoleToolPath)' == ''"> <NUnitConsoleToolPath>..\..\..\NUnit 2.5.5\bin\net-2.0</> </PropertyGroup> ... <Target Name="IntegratedTest"> <NUnitIntegrated TreatFailedTestsAsErrors="$(NUnitTreatFailedTestsAsErrors)" AssemblyName="$(AssemblyName)" OutputPath="$(OutputPath)" ConsoleToolPath="$(NUnitConsoleToolPath)" ConsoleTool="$(NUnitConsoleTool)" /> </Target> ... The above target fails with the error that the file cannot be found (that is the nunit-console.exe file). Inside the NUnitIntegrated MSBuild task, when the the execute() method is called, the current directory is the directory of the importing project, so relative paths will point to the wrong location. I tried to convert the relative path to absolute by adding these tasks to the IntegratedTest target: <ConvertToAbsolutePath Paths="$(NUnitConsoleToolPath)"> <Output TaskParameter="AbsolutePaths" PropertyName="AbsoluteNUnitConsoleToolPath"/> </ConvertToAbsolutePath> but this just converted it to be relative to the directory of the project file that imports this target file. I know I can use the property $(MSBuildProjectDirectory) to get the directory of the importing project, but can't find any equivalent for directory of the imported target file. Can anyone tell me how a path in an imported file that is supposed to be relative to the directory that the imported file is in can be made absolute? Thanks!

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• Usage of IcmpSendEcho2 with an asynchronous callback

  - by Ben Voigt

  I've been reading the MSDN documentation for IcmpSendEcho2 and it raises more questions than it answers. I'm familiar with asynchronous callbacks from other Win32 APIs such as ReadFileEx... I provide a buffer which I guarantee will be reserved for the driver's use until the operation completes with any result other than IO_PENDING, I get my callback in case of either success or failure (and call GetCompletionStatus to find out which). Timeouts are my responsibility and I can call CancelIo to abort processing, but the buffer is still reserved until the driver cancels the operation and calls my completion routine with a status of CANCELLED. And there's an OVERLAPPED structure which uniquely identifies the request through all of this. IcmpSendEcho2 doesn't use an OVERLAPPED context structure for asynchronous requests. And the documentation is unclear excessively minimalist about what happens if the ping times out or fails (failure would be lack of a network connection, a missing ARP entry for local peers, ICMP destination unreachable response from an intervening router for remote peers, etc). Does anyone know whether the callback occurs on timeout and/or failure? And especially, if no response comes, can I reuse the buffer for another call to IcmpSendEcho2 or is it forever reserved in case a reply comes in late? I'm wanting to use this function from a Win32 service, which means I have to get the error-handling cases right and I can't just leak buffers (or if the API does leak buffers, I have to use a helper process so I have a way to abandon requests). There's also an ugly incompatibility in the way the callback is made. It looks like the first parameter is consistent between the two signatures, so I should be able to use the newer PIO_APC_ROUTINE as long as I only use the second parameter if an OS version check returns Vista or newer? Although MSDN says "don't do a Windows version check", it seems like I need to, because the set of versions with the new argument aren't the same as the set of versions where the function exists in iphlpapi.dll. Pointers to additional documentation or working code which uses this function and an APC would be much appreciated. Please also let me know if this is completely the wrong approach -- i.e. if either using raw sockets or some combination of IcmpCreateFile+WriteFileEx+ReadFileEx would be more robust.

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• drawing thick, textured lines in OpenGL

  - by NateS

  I need to draw thick textured line segments in OpenGL. Actually I need curves made out of short line segments. Here is what I have: In the upper left is an example of two connected line segments. The second image shows once the lines are given width, they overlap. If I apply a texture that uses translucency, the overlap looks terrible. The third image shows that both lines are shortened by half the amount necessary to make the thick line corners just touch. This way I can fill the space between the lines with a triangle. On the right you can see this works well (ignore the horizontal line when the crappy texture repeats). But it doesn't always work well. In the bottom left the curve is made of many short line segments. Note the incorrect texture application. My program is written in Java, making use of the LWJGL OpenGL binding (and minor use of Slick, a 2D helper framework). I've made a zip file that contains an executable JAR so you can easily see the problem. It also has the Java code (there is only one source file) and an Eclipse project, so you can instantly run it through Eclipse and hack at it if you like. Here she is: http://n4te.com/temp/lines.zip To run, execute "java -jar lines.jar". You may need "-Djava.library.path=." before -jar if you are not on Windows. Press space to toggle texture/wireframe. The wireframe only shows the line segments, the triangle between them isn't drawn. I don't need to draw arbitrary lines, just bezier curves similar to what you see in the program. Sorry the code is a bit messy, once I have a solution I will refactor. I have investigated using GLUtessellator. It greatly simplified construction of the line, but I found that applying the texture was perfect. It worked most of the time (top image below), but long vertical curves would have severe texture distortion (bottom image below): This turned out to be much easier to code, but in the end worse than my approach. I believe what I'm trying to do is called "line tessellation" or "stroke tessellation". I assume this has been solved already? Is there standard code I can leverage? Otherwise, how can I fix my code so that the texture does not freak out on short, vertical curves?

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• Deploying MVC2 application to IIS7.5 - Ninject asked to provide controllers for content files

  - by Rune Jacobsen

  I have an application that started life as an MVC (1.0) app in Visual Studio 2008 Sp1 with a bunch of Silverlight 3 projects as part of the site. Nothing fancy at all. Using Ninject for dependency injection (first version 2 beta, now the released version 2 with the MVC extensions). With the release of .Net 4.0, VS2010, MVC2 etc., we decided to move the application to the newest platform. The conversion wizard in VS2010 apparently took care of everything, with one exception - it didn't change references to mvc1 to now point to mvc2, so I had to do that manually. Of course, this makes me think about other MVC2 things that could be missing from my app, that would be there if I did File - New Project... But that is not the focus of this question. When I deploy this application to the IIS 7.5 server (running on Win2008 R2 x64), the application as such works. However, images, scripts and other static content doesn't seem to exist. Of course they are there on disk on the server, but they don't show up in the client web browser. I am fairly new to IIS, so the only trick I knew is to try to open the web page in a browser on the server, as that could give me more information. And here, finally, we meet our enemy. If I try to go directly to the URL of one of the images (http://server/Content/someimage.jpg for instance), I get the following error in the browser: The IControllerFactory 'Ninject.Web.Mvc.NinjectControllerFactory' did not return a controller for a controller named 'Content'. Aha. The web server tries to feed this request to MVC, who with its' default routing setup assumes Content to be a controller, and fails. How can I get it to treat Content/ and Scripts/ (among others) as non-controllers and just pass through the static content? This of course works with Cassini on my developer machine, but as soon as I deploy, this problem hits. I am using the last version of Ninject MVC 2 where the IoC tool should pass missing controllers to the base controller factory, but this has apparently not helped. I have also tried to add ignore routes for Content etc., but this apparently has no effect either. I am not even sure I am addressing the problem on the right level. Does anyone know where to look to get this app going? I have full control of the web server so I can more or less do whatever I want to it, as long as it starts working. Thanks!

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• WinVerifyTrust API problem

  - by Shayan

  I'm using WinVerifyTrust API in windows XP and I don't want any kind of user interaction. But when I set the WTD_UI_NONE attribute, although it doesn't show any dialog boxes, but it waits for a long time on the files that in fact wanted user interaction (I mean files which without mentioning the NO UI it will ask the user for that file). This is my code: WINTRUST_FILE_INFO FileData; memset(&FileData, 0, sizeof(FileData)); FileData.cbStruct = sizeof(WINTRUST_FILE_INFO); wchar_t fileName[32769]; FileData.pcwszFilePath = fileName; FileData.hFile = NULL; FileData.pgKnownSubject = NULL; /* WVTPolicyGUID specifies the policy to apply on the file WINTRUST_ACTION_GENERIC_VERIFY_V2 policy checks: 1) The certificate used to sign the file chains up to a root certificate located in the trusted root certificate store. This implies that the identity of the publisher has been verified by a certification authority. 2) In cases where user interface is displayed (which this example does not do), WinVerifyTrust will check for whether the end entity certificate is stored in the trusted publisher store, implying that the user trusts content from this publisher. 3) The end entity certificate has sufficient permission to sign code, as indicated by the presence of a code signing EKU or no EKU. */ GUID WVTPolicyGUID = WINTRUST_ACTION_GENERIC_VERIFY_V2; WINTRUST_DATA WinTrustData; // Initialize the WinVerifyTrust input data structure. // Default all fields to 0. memset(&WinTrustData, 0, sizeof(WinTrustData)); WinTrustData.cbStruct = sizeof(WinTrustData); // Use default code signing EKU. WinTrustData.pPolicyCallbackData = NULL; // No data to pass to SIP. WinTrustData.pSIPClientData = NULL; // Disable WVT UI. WinTrustData.dwUIChoice = WTD_UI_NONE; // No revocation checking. WinTrustData.fdwRevocationChecks = WTD_REVOKE_NONE; // Verify an embedded signature on a file. WinTrustData.dwUnionChoice = WTD_CHOICE_FILE; // Default verification. WinTrustData.dwStateAction = 0; // Not applicable for default verification of embedded signature. WinTrustData.hWVTStateData = NULL; // Not used. WinTrustData.pwszURLReference = NULL; // Default. WinTrustData.dwProvFlags = WTD_REVOCATION_CHECK_END_CERT; // This is not applicable if there is no UI because it changes // the UI to accommodate running applications instead of // installing applications. WinTrustData.dwUIContext = 0; // Set pFile. WinTrustData.pFile = &FileData; // WinVerifyTrust verifies signatures as specified by the GUID // and Wintrust_Data. lStatus = WinVerifyTrust( (HWND)INVALID_HANDLE_VALUE, &WVTPolicyGUID, &WinTrustData); printf("%x\n", lStatus);

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• Runge-Kutta (RK4) integration for game physics

  - by Kai

  Gaffer on Games has a great article about using RK4 integration for better game physics. The implementation is straightforward but the math behind it confuses me. I understand derivatives and integrals on a conceptual level but I haven't manipulated equations in a long time. Here's the brunt of Gaffer's implementation: void integrate(State &state, float t, float dt) { Derivative a = evaluate(state, t, 0.0f, Derivative()); Derivative b = evaluate(state, t+dt*0.5f, dt*0.5f, a); Derivative c = evaluate(state, t+dt*0.5f, dt*0.5f, b); Derivative d = evaluate(state, t+dt, dt, c); const float dxdt = 1.0f/6.0f * (a.dx + 2.0f*(b.dx + c.dx) + d.dx); const float dvdt = 1.0f/6.0f * (a.dv + 2.0f*(b.dv + c.dv) + d.dv) state.x = state.x + dxdt * dt; state.v = state.v + dvdt * dt; } Can anybody explain in simple terms how RK4 works? Specifically, why are we averaging the derivatives at 0.0f, 0.5f, 0.5f, and 1.0f? How is averaging derivatives up to the 4th order different from doing a simple euler integration with a smaller timestep? After reading the accepted answer below, and several other articles, I have a grasp on how RK4 works. To answer my own questions: Can anybody explain in simple terms how RK4 works? RK4 takes advantage of the fact that we can get a much better approximation of a function if we use its higher-order derivatives rather than just the first or second derivative. That's why the Taylor series converges much faster than Euler approximations. (take a look at the animation on the right side of that page) Specifically, why are we averaging the derivatives at 0.0f, 0.5f, 0.5f, and 1.0f? The Runge-Kutta method is an approximation of a function that samples derivatives of several points within a timestep, unlike the Taylor series which only samples derivatives of a single point. After sampling these derivatives we need to know how to weigh each sample to get the closest approximation possible. An easy way to do this is to pick constants that coincide with the Taylor series, which is how the constants of a Runge-Kutta equation are determined. This article made it clearer for me: http://web.mit.edu/10.001/Web/Course%5FNotes/Differential%5FEquations%5FNotes/node5.html. Notice how (15) is the Taylor series expansion while (17) is the Runge-Kutta derivation. How is averaging derivatives up to the 4th order different from doing a simple euler integration with a smaller timestep? Mathematically it converges much faster than doing many Euler approximations. Of course, with enough Euler approximations we can gain equal accuracy to RK4, but the computational power needed doesn't justify using Euler.

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• Truncate text to fit table cell without wrapping using css or jquery

  - by Tauren

  I want the text in one of the columns of a table to not wrap, but to just truncate so that it fits within the current size of the table cell. I don't want the table cell to change size, as I need the table to be exactly 100% the width of the container. This is because the table with 100% width is inside of a positioned div with overflow: auto (it's actually inside of a jquery UI.Layout panel). I tried both overflow: hidden and the text still wrapped. I tried white-space: nowrap, but it stretched the table wider than 100% and added a horizontal scroll bar. div.container { position: absolute; overflow: auto; /* user can slide resize bars to change the width & height */ width: 600px; height: 300px; } table { width: 100% } td.nowrap { overflow: hidden; white-space: nowrap; } <div class="container"> <table> <tr> <td>From</td> <td>Subject</td> <td>Date</td> </tr> <tr> <td>Bob Smith</td> <td class="nowrap"> <strong>Message subject</strong> <span>This is a preview of the message body and could be long.</span> </td> <td>2010-03-30 02:18AM</td> </tr> </table> </div> Is there a way using css to solve this? If I had a fixed table cell size, then overflow:hidden would truncate anything that flows over, but I can't used a fixed size as I want the table to stretch with the UI.Layout panel size. If not, then how would I solve this with jquery? My use case is similar to the gmail interface, where an email subject is bolded and the beginning of the message body is shown, but then truncated to fit.

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• WPF Debugging AvalonEdit binding to Document property.

  - by kubal5003

  Hello, all day long I am sitting and trying to find out why binding to AvalonEdits Document property isn't working. AvalonEdit is an advanced WPF text editor - part of the SharpDevelop project.(it's going to be used in SharpDevelop v4 Mirador). So when I set up a simple project - one TextEditor (that's the AvalonEdits real name in the library) and made a simple class that has one property - Document and it returns a dummy object with some static text the binding is working perfectly. However in real life solution I'm binding a collection of SomeEditor objects to TabControl. TabControl has DataTemplate for SomeEditor and there's the TextEditor object. <TabControl Grid.Column="1" x:Name="tabControlFiles" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" > <TabControl.Resources> <DataTemplate DataType="{x:Type m:SomeEditor}"> <a:TextEditor Document="{Binding Path=Document, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource NoopConverter}, IsAsync=True}" x:Name="avalonEdit"></a:TextEditor> </DataTemplate> </TabControl.Resources> <TabControl.ItemContainerStyle> <Style BasedOn="{StaticResource TabItemStyle}" TargetType="{x:Type TabItem}"> <Setter Property="IsSelected" Value="{Binding IsSelected}"></Setter> </Style> </TabControl.ItemContainerStyle> </TabControl> This doesn't work. What I've investigated so far: DataContext of TextEditor is set to the proper instance of SomeEditor TextEditors Document property is set to some other instance than SomeEditor.Document property when I set breakpoint to no-op converter that is attached to that binding it shows me the correct value for Document (the converter is used!) I also dug through the VisualTree to obtain reference to TextEditor and called GetBindingExpression(TextEditor.DocumentProperty) and this did return nothing WPF produces the following information: System.Windows.Data Information: 10 : Cannot retrieve value using the binding and no valid fallback value exists; using default instead. BindingExpression:Path=Document; DataItem='SomeEditor' (HashCode=26280264); target element is 'TextEditor' (Name='avalonEdit'); target property is 'Document' (type 'TextDocument') SomeEditor instance that is bound to already has a created and cached copy of Document before the binding occurs. The getter is never called. Anyone can tell me what might be wrong? Why BindingExpression isn't set ? Why property getter is never called?

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• Sorting Android ListView

  - by aeoth

  I'm only starting with Android dev, and while the Milestone is a nice device Java is not my natural language and I'm struggling with both the Google docs on Android SDK, Eclipse and Java itself. Anyway... I'm writing a microblog client for Android to go along with my Windows client (MahTweets). At the moment I've got Tweets coming and going without fail, the problem is with the UI. The initial call will order items correctly (as in highest to lowest) 3 2 1 When a refresh is made 3 2 1 6 5 4 After the tweets are processed, I'm calling adapter.notifyDataSetChanged(); Initially I thought that getItem() on the Adapter needed to be sorted (and the code below is what I ended up with), but I'm still not having any luck. public class TweetAdapter extends BaseAdapter { private List<IStatusUpdate> elements; private Context c; public TweetAdapter(Context c, List<IStatusUpdate> Tweets) { this.elements = Tweets; this.c = c; } public int getCount() { return elements.size(); } public Object getItem(int position) { Collections.sort(elements, new IStatusUpdateComparator()); return elements.get(position); } public long getItemId(int id) { return id; } public void Remove(int id) { notifyDataSetChanged(); } public View getView(int position, View convertView, ViewGroup parent) { RelativeLayout rowLayout; IStatusUpdate t = elements.get(position); rowLayout = t.GetParent().GetUI(t, parent, c); return rowLayout; } class IStatusUpdateComparator implements Comparator { public int compare(Object obj1, Object obj2) { IStatusUpdate update1 = (IStatusUpdate)obj1; IStatusUpdate update2 = (IStatusUpdate)obj2; int result = update1.getID().compareTo(update2.getID()); if (result == -1) return 1; else if (result == 1) return 0; return result; } } } Is there a better way to go about sorting ListViews in Android, while still being able to use the LayoutInflater? (rowLayout = t.GetParent().GetUI(t, parent, c) expands the UI to the specific view which the microblog implementation can provide)

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• qT quncompress gzip data

  - by talei

  Hello, I stumble upon a problem, and can't find a solution. So what I want to do is uncompress data in qt, using qUncompress(QByteArray), send from www in gzip format. I used wireshark to determine that this is valid gzip stream, also tested with zip/rar and both can uncompress it. Code so far, is like this: static const char dat[40] = { 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xaa, 0x2e, 0x2e, 0x49, 0x2c, 0x29, 0x2d, 0xb6, 0x4a, 0x4b, 0xcc, 0x29, 0x4e, 0xad, 0x05, 0x00, 0x00, 0x00, 0xff, 0xff, 0x03, 0x00, 0x2a, 0x63, 0x18, 0xc5, 0x0e, 0x00, 0x00, 0x00 }; //this data contains string: {status:false}, in gzip format QByteArray data; data.append( dat, sizeof(dat) ); unsigned int size = 14; //expected uncompresed size, reconstruct it BigEndianes //prepand expected uncompressed size, last 4 byte in dat 0x0e = 14 QByteArray dataPlusSize; dataPlusSize.append( (unsigned int)((size >> 24) & 0xFF)); dataPlusSize.append( (unsigned int)((size >> 16) & 0xFF)); dataPlusSize.append( (unsigned int)((size >> 8) & 0xFF)); dataPlusSize.append( (unsigned int)((size >> 0) & 0xFF)); QByteArray uncomp = qUncompress( dataPlusSize ); qDebug() << uncomp; And uncompression fails with: qUncompress: Z_DATA_ERROR: Input data is corrupted. AFAIK gzip consist of 10 byte header, DEFLATE peyload, 12 byte trailer ( 8 byte CRC32 + 4 byte ISIZE - uncompresed data size ). Striping header and trailer should leave me with DEFLATE data stream, qUncompress yields same error. I checked with data string compressed in PHP, like this: $stringData = gzcompress( "{status:false}", 1); and qUncompress uncompress that data.(I didn't see and gzip header though i.e. ID1 = 0x1f, ID2 = 0x8b ) I checked above code with debug, and error occurs at: if ( #endif ((BITS(8) << 8) + (hold >> 8)) % 31) { //here is error, WHY? long unsigned int hold = 35615 strm->msg = (char *)"incorrect header check"; state->mode = BAD; break; } inflate.c line 610. I know that qUncompress is simply a wrapper to zlib, so I suppose it should handle gzip without any problem. Any comments are more then welcome. Best regards

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• WPF: TextBox expanding with surrounding Grid but not with text

  - by haagel

  I have a problem with a TextBox in an application... A window has a Grid with two columns. The left column contains a control with a constant width but with a height that adapts. The right column contains a TextBox that takes up all remaining space in the Grid (and thereby in the Window). The Grid is given a minimal width and height and is wrapped within a ScrollViewer. If the user resizes the window to be smaller than the minimal widht/height of the Grid, scrollbars are displayed. This is exactly how I want it to be. However, a problem occurs when the user starts typing text. If the text is to long to fit in one line in the TextBox, I want the text to wrap. Therefore I set TextWrapping="Wrap" on the TextBox. But since the TextBox has an automatic width and is wrapped in a ScrollViewer (its actually the whole Grid that is wrapped), the TextBox just keeps expanding to the right. I do want the TextBox to expand if the window is expanded, but I don't want the TextBox to expand by the text. Rather the text should wrap inside the available TextBox. If the text don't fit within the TextBox height, a scrollbar should be displayed within the TextBox. Is there a way to accomplish this? Below is some code that shows my problem. <Window x:Class="AdaptingTextBoxes.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="300" Width="400" Background="DarkCyan"> <Grid Margin="10" Name="LayoutRoot"> <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto"> <Grid MinWidth="300" MinHeight="200"> <Grid.ColumnDefinitions> <ColumnDefinition Width="auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <Button Grid.Column="0" Margin="0,0,10,0" Content="Button" Width="100" /> <TextBox Grid.Column="1" AcceptsReturn="True" TextWrapping="Wrap" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Auto" /> </Grid> </ScrollViewer> </Grid> </Window>

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• .Net Crystal Report printing application running on termianal service connection errors when session

  - by MrEdmundo

  I have created a .Net application to run on an App Server that gets requests for a report and prints out the requested report. The C# application uses Crystal Reports to load the report and subsequently print it out. The application is run on Server which is connected to via a Remote Desktop connection under a particular user account (required for old apps). When I disconnect from the Remote Session the application starts raising exceptions such as: Message: CrystalDecisions.Shared.CrystalReportsException: Load report failed This type of error is never raised when the Remote Session is active. The server running the app is running Windows Server 2003, my box which creates the connection is Windows XP. I appreciate this is fairly weird, however I cannot see any problem with the application deployment I have created. Does anyone know what could be cause this issue? EDIT: I bit the bullet and created the application as a windows service, obviously this doesn't take long I just wasn't convinced it would solve the problem. Anyway it doesn't!!! I have also tried removing the multi-thread code that was calling the print function asynchronously. I did this in order to simply the app and narrow down the reason it could fail. Anyway, this didn't improve the situation either! EDIT: The two errors I get are: System.Runtime.InteropServices.COMException (0x80000201): Invalid printer specified. at CrystalDecisions.ReportAppServer.Controllers.PrintOutputControllerClass.ModifyPrinterName(String newVal) at CrystalDecisions.CrystalReports.Engine.PrintOptions.set_PrinterName(String value) at Dsa.PrintServer.Service.Service.PrintCrystalReport(Report report) The printer isn't invalid, this is confirmed when 60 seconds later the time ticks and the report is printed successfully. And The request could not be submitted for background processing. at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.GetLastPageNumber(RequestContext pRequestContext) at CrystalDecisions.ReportSource.EromReportSourceBase.GetLastPageNumber(ReportPageRequestContext reqContext) --- End of inner exception stack trace --- at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e) at CrystalDecisions.ReportSource.EromReportSourceBase.GetLastPageNumber(ReportPageRequestContext reqContext) at CrystalDecisions.CrystalReports.Engine.FormatEngine.PrintToPrinter(Int32 nCopies, Boolean collated, Int32 startPageN, Int32 endPageN) at CrystalDecisions.CrystalReports.Engine.ReportDocument.PrintToPrinter(Int32 nCopies, Boolean collated, Int32 startPageN, Int32 endPageN) at Dsa.PrintServer.Service.Service.PrintCrystalReport(Report report) EDIT: I ran filemon to check if there were any access issue. At the point when the error occurs file mon reports Request: OPEN | Path: C:\windows\assembly\gac_msil\system\2.0.0.0__b77a5c561934e089\ws2_32.dll | Result: NOT FOUND | Other: Attributes Error

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• iPhone 3DES encryption key length issue

  - by Russell Hill

  Hi, I have been banging my head on a wall with this one. I need to code my iPhone application to encrypt a 4 digit "pin" using 3DES in ECB mode for transmission to a webservice which I believe is written in .NET. + (NSData *)TripleDESEncryptWithKey:(NSString *)key dataToEncrypt:(NSData*)encryptData { NSLog(@"kCCKeySize3DES=%d", kCCKeySize3DES); char keyBuffer[kCCKeySize3DES+1]; // room for terminator (unused) bzero( keyBuffer, sizeof(keyBuffer) ); // fill with zeroes (for padding) [key getCString: keyBuffer maxLength: sizeof(keyBuffer) encoding: NSUTF8StringEncoding]; // encrypts in-place, since this is a mutable data object size_t numBytesEncrypted = 0; size_t returnLength = ([encryptData length] + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); // NSMutableData* returnBuffer = [NSMutableData dataWithLength:returnLength]; char* returnBuffer = malloc(returnLength * sizeof(uint8_t) ); CCCryptorStatus ccStatus = CCCrypt(kCCEncrypt, kCCAlgorithm3DES , kCCOptionECBMode, keyBuffer, kCCKeySize3DES, nil, [encryptData bytes], [encryptData length], returnBuffer, returnLength, &numBytesEncrypted); if (ccStatus == kCCParamError) NSLog(@"PARAM ERROR"); else if (ccStatus == kCCBufferTooSmall) NSLog(@"BUFFER TOO SMALL"); else if (ccStatus == kCCMemoryFailure) NSLog(@"MEMORY FAILURE"); else if (ccStatus == kCCAlignmentError) NSLog(@"ALIGNMENT"); else if (ccStatus == kCCDecodeError) NSLog(@"DECODE ERROR"); else if (ccStatus == kCCUnimplemented) NSLog(@"UNIMPLEMENTED"); if(ccStatus == kCCSuccess) { NSLog(@"TripleDESEncryptWithKey encrypted: %@", [NSData dataWithBytes:returnBuffer length:numBytesEncrypted]); return [NSData dataWithBytes:returnBuffer length:numBytesEncrypted]; } else return nil; } } I do get a value encrypted using the above code, however it does not match the value from the .NET web service. I believe the issue is that the encryption key I have been supplied by the web service developers is 48 characters long. I see that the iPhone SDK constant "kCCKeySize3DES" is 24. So I SUSPECT, but don't know, that the commoncrypto API call is only using the first 24 characters of the supplied key. Is this correct? Is there ANY way I can get this to generate the correct encrypted pin? I have output the data bytes from the encryption PRIOR to base64 encoding it and have attempted to match this against those generated from the .NET code (with the help of a .NET developer who sent the byte array output to me). Neither the non-base64 encoded byte array nor the final base64 encoded strings match.

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• MIPS: removing non alpha-numeric characters from a string

  - by Kron

  I'm in the process of writing a program in MIPS that will determine whether or not a user entered string is a palindrome. It has three subroutines which are under construction. Here is the main block of code, subroutines to follow with relevant info: .data Buffer: .asciiz " " # 80 bytes in Buffer intro: .asciiz "Hello, please enter a string of up to 80 characters. I will then tell you if that string was a palindrome!" .text main: li $v0, 4 # print_string call number la $a0, intro # pointer to string in memory syscall li $v0, 8 #syscall code for reading string la $a0, Buffer #save read string into buffer li $a1, 80 #string is 80 bytes long syscall li $s0, 0 #i = 0 li $t0, 80 #max for i to reach la $a0, Buffer jal stripNonAlpha li $v0, 4 # print_string call number la $a0, Buffer # pointer to string in memory syscall li $s0, 0 jal findEnd jal toUpperCase li $v0, 4 # print_string call number la $a0, Buffer # pointer to string in memory syscall Firstly, it's supposed to remove all non alpha-numeric characters from the string before hand, but when it encounters a character designated for removal, all characters after that are removed. stripNonAlpha: beq $s0, $t0, stripEnd #if i = 80 end add $t4, $s0, $a0 #address of Buffer[i] in $t4 lb $s1, 0($t4) #load value of Buffer[i] addi $s0, $s0, 1 #i = i + 1 slti $t1, $s1, 48 #if ascii code is less than 48 bne $t1, $zero, strip #remove ascii character slti $t1, $s1, 58 #if ascii code is greater than 57 #and slti $t2, $s1, 65 #if ascii code is less than 65 slt $t3, $t1, $t2 bne $t3, $zero, strip #remove ascii character slti $t1, $s1, 91 #if ascii code is greater than 90 #and slti $t2, $s1, 97 #if ascii code is less than 97 slt $t3, $t1, $t2 bne $t3, $zero, strip #remove ascii character slti $t1, $s1, 123 #if ascii character is greater than 122 beq $t1, $zero, strip #remove ascii character j stripNonAlpha #go to stripNonAlpha strip: #add $t5, $s0, $a0 #address of Buffer[i] in $t5 sb $0, 0($t4) #Buffer[i] = 0 #addi $s0, $s0, 1 #i = i + 1 j stripNonAlpha #go to stripNonAlpha stripEnd: la $a0, Buffer #save modified string into buffer jr $ra #return Secondly, it is supposed to convert all lowercase characters to uppercase. toUpperCase: beq $s0, $s2, upperEnd add $t4, $s0, $a0 lb $s1, 0($t4) addi $s1, $s1, 1 slti $t1, $s1, 97 #beq $t1, $zero, upper slti $t2, $s1, 123 slt $t3, $t1, $t2 bne $t1, $zero, upper j toUpperCase upper: add $t5, $s0, $a0 addi $t6, $t6, -32 sb $t6, 0($t5) j toUpperCase upperEnd: la $a0, Buffer jr $ra The final subroutine, which checks if the string is a palindrome isn't anywhere near complete at the moment. I'm having trouble finding the end of the string because I'm not sure what PC-SPIM uses as the carriage return character. Any help is appreciated, I have the feeling most of my problems result from something silly and stupid so feel free to point out anything, no matter how small.

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• onListItemClick and CheckedTextView not respoding

  - by rayman

  Hi, i got ListActivity, each item has 2 textviews image and CheckedTextView. i am trying to implement simple multichoiselist... i have two problems: 1. @Override protected void onListItemClick(android.widget.ListView l, View v, int position, long id) { ... } doesnt respond at all ive tried it with the debugger and when i press on any list item it doesnt stop there. and ive tried all kind of things (like focusable:false) two:. i cant toggle the CheckedTextView anyhow. here is my xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="100sp" android:focusable="false" android:focusableInTouchMode="false"> android:padding="6dip"> <ImageView android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/icon" android:id="@drawable/icon" android:layout_marginLeft="6dip" android:focusable="false" android:focusableInTouchMode="false"> </ImageView> <LinearLayout android:id="@+id/LinearLayout01" android:orientation="vertical" android:layout_width="1sp" android:layout_height="fill_parent" android:layout_weight="1" android:focusable="false" android:focusableInTouchMode="false"> <TextView android:id="@+id/toptext" android:layout_weight="1" android:gravity="center_vertical" android:text="OrderNum" android:singleLine="true" android:layout_height="0dp" android:layout_width="wrap_content" android:focusable="false" android:focusableInTouchMode="false"> </TextView> <TextView android:id="@+id/bottomtext" android:layout_height="wrap_content" android:layout_width="wrap_content" android:focusable="false" android:focusableInTouchMode="false" android:text="TweetMsg"> </TextView> <TextView android:id="@+id/twittLocation" android:layout_weight="1" android:text="location" android:singleLine="true" android:layout_width="fill_parent" android:layout_height="0dip" android:focusable="false" android:focusableInTouchMode="false"> </TextView> <TextView android:layout_weight="1" android:id="@+id/twittLocationlink" android:text="locationlink" android:gravity="fill_horizontal" android:layout_width="fill_parent" android:layout_height="0dip" android:focusable="false" android:focusableInTouchMode="false"> </TextView> </LinearLayout> <CheckedTextView android:id="@android:id/text1" android:text="Delete" android:layout_width="wrap_content" android:layout_marginRight="2dp" android:layout_height="fill_parent" android:checkMark="?android:attr/listChoiceIndicatorMultiple" android:focusable="false"></CheckedTextView> </LinearLayout> any idea what's the problem? thanks.

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• undefined reference to `main' collect2: ld returned 1 exit status

  - by sobingt

  I am working on this QT project and i am making test cases for my project. Here is a small test case #include <QApplication> #include <QPalette> #include <QPixmap> #include <QSplashScreen> #include <qthread.h> #define BOOST_TEST_MAIN #include <boost/test/unit_test.hpp> #include <boost/make_shared.hpp> # include <boost/thread.hpp> #include "MainWindow.h" namespace { const std::string dbname = "Project.db"; struct SongFixture { SongFixture(const std::string &fixturePath) { // Create the Master file Master::creator(); // Create/open file std::pair<int, SQLiteDbPtr> result = open( dbname, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0); if (result.first != SQLITE_OK) { throw SQLiteError(result.first, sqlite3_errmsg(result.second.get())); } SQLiteDbPtr &spDb = result.second; // Execute all the SQL from the fixture file execSQLFromFile(spDb, fixturePath); } }; std::auto_ptr<SongFixture> pf; } class I : public QThread { public: static void sleep(unsigned long secs) { QThread::sleep(secs); } }; void free_test_function() { BOOST_CHECK(true ); } test_suite* init_unit_test_suite(int argc, char *argv[]) { // Create a fixture for the peer: // Manage fixture creation manually instead of using // BOOST_FIXTURE_TEST_CASE because the fixture depends on runtime args. std::ostringstream fixturePathSS; fixturePathSS << PROJECT_DIR << "/test/songs_fixture.sql"; std::string fixturePath = fixturePathSS.str(); pf.reset(new SongFixture(fixturePath)); QApplication app(argc, argv); MainWindow window("artists"); window.show(); framework::master_test_suite().add( BOOST_TEST_CASE( &free_test_function )); return app.exec(); } Well i am getting any error /usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../x86_64-linux-gnu/crt1.o: In function _start': (.text+0x20): undefined reference tomain' collect2: ld returned 1 exit status pls help me you have a lead..thankz I tired adding #define BOOST_TEST_MAIN then i get ../test/UI/main.cpp: In function ‘boost::unit_test::test_suite* init_unit_test_suite(int, char**)’: ../test/UI/main.cpp:75:31: error: redefinition of ‘boost::unit_test::test_suite* init_unit_test_suite(int, char**)’ /usr/local/include/boost/test/unit_test_suite.hpp:223:1: error: ‘boost::unit_test::test_suite* init_unit_test_suite(int, char**)’ previously defined here Well the program is working in Windows but in Linux the above mention problem is observed

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• Subclassed django models with integrated querysets

  - by outofculture

  Like in this question, except I want to be able to have querysets that return a mixed body of objects: >>> Product.objects.all() [<SimpleProduct: ...>, <OtherProduct: ...>, <BlueProduct: ...>, ...] I figured out that I can't just set Product.Meta.abstract to true or otherwise just OR together querysets of differing objects. Fine, but these are all subclasses of a common class, so if I leave their superclass as non-abstract I should be happy, so long as I can get its manager to return objects of the proper class. The query code in django does its thing, and just makes calls to Product(). Sounds easy enough, except it blows up when I override Product.__new__, I'm guessing because of the __metaclass__ in Model... Here's non-django code that behaves pretty much how I want it: class Top(object): _counter = 0 def __init__(self, arg): Top._counter += 1 print "Top#__init__(%s) called %d times" % (arg, Top._counter) class A(Top): def __new__(cls, *args, **kwargs): if cls is A and len(args) > 0: if args[0] is B.fav: return B(*args, **kwargs) elif args[0] is C.fav: return C(*args, **kwargs) else: print "PRETENDING TO BE ABSTRACT" return None # or raise? else: return super(A).__new__(cls, *args, **kwargs) class B(A): fav = 1 class C(A): fav = 2 A(0) # => None A(1) # => <B object> A(2) # => <C object> But that fails if I inherit from django.db.models.Model instead of object: File "/home/martin/beehive/apps/hello_world/models.py", line 50, in <module> A(0) TypeError: unbound method __new__() must be called with A instance as first argument (got ModelBase instance instead) Which is a notably crappy backtrace; I can't step into the frame of my __new__ code in the debugger, either. I have variously tried super(A, cls), Top, super(A, A), and all of the above in combination with passing cls in as the first argument to __new__, all to no avail. Why is this kicking me so hard? Do I have to figure out django's metaclasses to be able to fix this or is there a better way to accomplish my ends?

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• C# MP3 Player using winmm.dll

  - by JoeBeez

  I'm trying to bash together a (very) rough MP3 player during my lunch hour, and so far I've got it to play the files, and I'm working on a way of building a list of filenames to enable random songs, but I think I've just hit a snag. Is there a way of knowing when the currently playing MP3 has finished? An event or some such? As it stands I don't think I'd be able to have playlists etc unless this was possible due to it stopping after every playback. I've attatched the whole source below, feel free to pick it apart and give me any feedback you may have, cheers. using System; using System.IO; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Runtime.InteropServices; namespace X { public partial class Form1 : Form { List<string> Names = new List<string>(); StreamReader reader = File.OpenText(@"C:\X.txt"); string line; OpenFileDialog ofd = new OpenFileDialog(); StringBuilder buffer = new StringBuilder(128); string CommandString; [DllImport("winmm.dll")] private static extern long mciSendString(string lpstrCommand, StringBuilder lpstrReturnString, int uReturnLength, int hwndCallback); public Form1() { InitializeComponent(); while ((line = reader.ReadLine()) != null) { if (line.Trim() != "") { Names.Add(line.Trim()); } } } private void btnplay_Click(object sender, EventArgs e) { if (ofd.FileName == "") { if (ofd.ShowDialog() == DialogResult.OK) { ofd.Filter = "MP3 Files|*.mp3"; CommandString = "open " + "\"" + ofd.FileName + "\"" + " type MPEGVideo alias Mp3File"; mciSendString(CommandString, null, 0, 0); CommandString = "play Mp3File"; mciSendString(CommandString, null, 0, 0); } } else { CommandString = "play Mp3File"; mciSendString(CommandString, null, 0, 0); } } private void btnpause_Click(object sender, EventArgs e) { CommandString = "pause mp3file"; mciSendString(CommandString, null, 0, 0); } private void btnbrowse_Click(object sender, EventArgs e) { ofd.Filter = "Mp3 files |*.mp3"; if (ofd.ShowDialog() == DialogResult.OK) { txtpath.Text = ofd.FileName; CommandString = "close Mp3File"; mciSendString(CommandString, null, 0, 0); CommandString = "open " + "\"" + ofd.FileName + "\"" + " type MPEGVideo alias Mp3File"; mciSendString(CommandString, null, 0, 0); } } } }

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• Why do many software projects fail today?

  - by TomTom

  As long as there are software projects, the world is wondering why they fail so often. I would like to know if there is a list or something equivalent which shows how many software projects fail today. Would be nice if there would be a comparison over the last 20 - 30 years. You can also add your top reason why a software project fails. Mine is "Requirements are poor or not even existing." which includes also "No (real) customer / user involved". EDIT: It is nearly impossible to clearly define the term "fail". Let's say that fail means: The project was more than 10% over budget and time. In my opinion the 10% + / - is a good range for an offer / tender. EDIT: Until now (Feb 11) it seems that most posters agree that a fail of the project is basically a failure of the project management (whatever fail means). But IMHO it comes out, that most developers are not happy with this situation. Perhaps because not the manager get penalized when a project was not successful, but the lazy, incompetent developer teams? When I read the posts I can also hear-out that there is a big "gap" between the developer side and the managment side. The expectations (perhaps also the requirements) seem to be so different, that a project cannot be successful in the end (over time / budget; users are not happy; not all first-prio features implemented; too many bugs because developers were forced to implement in too short timeframes ...) I',m asking myself: How can we improve it? Or do we have the possibility to improve it? Everybody seems to be unsatisfied with the way it goes now. Can we close the gap between these two worlds? Should we (the developers) go on strike and fight for "high quality reqiurements" and "realistic / iteration based time shedules"? EDIT: Ralph Westphal and Stefan Lieser have founded a new "community" called: Clean-Code-Developer. The aim of the group is to bring more professionalism into software engineering. Independently if a developer has a degree or tons of years of experience you can be part of this movement. Clean Code Developers live principles like SOLID every day. A professional developer is the biggest reviewer of his own work. And he has an internal value system which helps him to improve and become better. Check it out on: Clean Code Developer EDIT: Our company is doing at the moment a thing called "Application Development and Maintenance Benchmarking". This is a service offered by IBM to get a feedback from someone external on your software engineering process quality etc. When we get the results, I will tell you more about it.

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• BouncyCastle GCM/CCM Exceprion in JAVA

  - by 4r1y4n

  can anyone give me an example for using GCM and/or CCM modes with AES in BouncyCastle? My code is this: SecretKeySpec key = new SecretKeySpec(keyBytes, "AES"); IvParameterSpec ivSpec = new IvParameterSpec(ivBytes); Cipher cipher = Cipher.getInstance("AES/AEAD/PKCS5Padding", "BC"); byte[] block = new byte[1048576]; int i; long st,et; cipher.init(Cipher.ENCRYPT_MODE, key, ivSpec); BufferedInputStream bIn=new BufferedInputStream(new ProgressMonitorInputStream(null,"Encrypting ...",new FileInputStream("input"))); CipherInputStream cIn = new CipherInputStream(bIn, cipher); BufferedOutputStream bOut=new BufferedOutputStream(new FileOutputStream("output.enc")); int ch; while ((i = cIn.read(block)) != -1) { bOut.write(block, 0, i); } cIn.close(); bOut.close(); Thread.sleep(5000); cipher.init(Cipher.DECRYPT_MODE, key, ivSpec); BufferedInputStream fis=new BufferedInputStream(new ProgressMonitorInputStream(null,"Decrypting ...",new FileInputStream("output.enc"))); //FileInputStream fis=new FileInputStream("output.enc"); //FileOutputStream ro=new FileOutputStream("regen.plain"); BufferedOutputStream ro=new BufferedOutputStream(new FileOutputStream("regen.plain")); CipherInputStream dcIn = new CipherInputStream(fis, cipher); while ((i = dcIn.read(block)) != -1) { ro.write(block, 0, i); } dcIn.close(); ro.close(); but it throws this exception when decrypting in GCM mode (line 70 is bOut.write(block, 0, i);): Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException at java.lang.System.arraycopy(Native Method) at org.bouncycastle.crypto.modes.CCMBlockCipher.processPacket(Unknown Source) at org.bouncycastle.crypto.modes.CCMBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$AEADGenericBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineDoFinal(Unknown Source) at javax.crypto.Cipher.doFinal(DashoA13*..) at javax.crypto.CipherInputStream.a(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at enctest.Main.main(Main.java:70) And this Exception when encrypting in CCM mode (line 70 is bOut.write(block, 0, i);): Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException at java.lang.System.arraycopy(Native Method) at org.bouncycastle.crypto.modes.CCMBlockCipher.processPacket(Unknown Source) at org.bouncycastle.crypto.modes.CCMBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$AEADGenericBlockCipher.doFinal(Unknown Source) at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineDoFinal(Unknown Source) at javax.crypto.Cipher.doFinal(DashoA13*..) at javax.crypto.CipherInputStream.a(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at javax.crypto.CipherInputStream.read(DashoA13*..) at enctest.Main.main(Main.java:70)

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