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  • simple CATextLayer scaling problem

    - by dersubtile
    I'm having a simple scaling problem with CATextLayer, but i just couldn't figure it out: I want the CATextLayer to proportionally grow in size with it's superlayer: if the superlayer's width is 300 the text size of CATextLayer should be 12 and if the supeview's width is 600 the text size should be 24. I couldn't find a working solution! Can you please give me a clue? Thanks, Julian.

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  • Is there bug in the Matrix.RotateAt method for certain angles? .Net Winforms

    - by Jules
    Here's the code i'm using to rotate: Dim m As New System.Drawing.Drawing2D.Matrix Dim size = image.Size m.RotateAt(degreeAngle, New PointF(CSng(size.Width / 2), CSng(size.Height / 2))) Dim temp As New Bitmap(600, 600, Imaging.PixelFormat.Format32bppPArgb) Dim g As Graphics = Graphics.FromImage(temp) g.Transform = m g.DrawImage(image, 0, 0) (1) Disposals removed for brevity. (2) I test the code with a 200 x 200 rectangle. (3) Size 600,600 it just an arbitrary large value that I know will fit the right and bottom sides of the rotated image for testing purposes. (4) I know, with this code, the top and left edges will be clipped because I'm not transforming the orgin after the rotate. The problem only occurs at certain angles: (1) At 90, the right hand edge disappears completely. (2) At 180, the right and bottom edges are there, but very faded. (3) At 270, the bottom edge disappears completely. Is this a known bug? If I manually rotate the corners an draw the image by specifying an output rectangle, I don't get the same problem - though it is slightly slower than using RotateAt.

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  • sizeof(class) c++

    - by badkya
    How is it possible for sizeof(class) to return two different values depending on context? The class itself should have the same size right irrespective of where I ask this question? I see a smaller value when querying class size from main() and another when I query class size from an extended class.

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  • How to listen to JComboBox's width changes?

    - by agnieszka
    I tried PropertyChangeListener with property set to "width", "Width", "size" and "Size". PropertyChangeListener widthChangeListener = new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { //code } }; streamsComboBox.addPropertyChangeListener("width", widthChangeListener); projectsComboBox.addPropertyChangeListener("width", widthChangeListener); vobsComboBox.addPropertyChangeListener("width", widthChangeListener); Nothing works - the handler method is never fired. What should I do to handle JComboBox's size change? Where does the property name come from anyway?

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  • What is the best way to convert this java code into Objective C code??

    - by LCYSoft
    public byte[] toBytes() { size = 12; ByteBuffer buf = ByteBuffer.allocate(size); buf.putInt(type.ordinal());//type is a enum buf.putInt(id); buf.putInt(size); return buf.array(); } @Override public void fromBytes(byte[] data) { ByteBuffer buf = ByteBuffer.allocate(data.length); buf.put(data); buf.rewind(); type = MessageType.values()[buf.getInt()]; id = buf.getInt(); size = buf.getInt(); } Thanks in advance :)

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  • Using xsl param (if exists) to replcae attribute value

    - by Assaf
    I would like an xsl that replaces the value attribute of the data elements only if the relevant param names are passed. Input <applicationVariables applicationServer="tomcat"> <data name="HOST" value="localhost"/> <data name="PORT" value="8080"/> <data name="SIZE" value="1000"/> </applicationVariables> So for example if passing in a param HOST1=myHost and PORT=9080 the output should be: <applicationVariables applicationServer="tomcat"> <data name="HOST" value="myHost"/> <data name="PORT" value="9080"/> <data name="SIZE" value="1000"/> </applicationVariables> Note that HOST and PORT where replaced but SIZE was not replaced because there was no parameter with name SIZE Since the list of data elements is long (and may change), i would like a generic way of doing this with xsl

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  • saved image in the picturebox shows no preview

    - by Nivas
    Hi iam new to C# and have loaded the image in the picture box using menustrip and have displayed some text using picturebox_Paint and label. now i tried to save the image (with image and text) using save event from the menustrip. in the saved location the file shows as no preview avaliable and when i tried to open the file it shows out of memory. can any one say where iam going worng.... my coades private void openToolStripMenuItem_Click(object sender, EventArgs e) { string file = ""; OpenFD.FileName = ""; OpenFD.Title = "open image"; OpenFD.InitialDirectory = "C"; OpenFD.Filter = "JPEG|.jpg|Bmp|.bmp|All Files|..*"; if (OpenFD.ShowDialog() == DialogResult.OK) { file = OpenFD.FileName; pictureBox1.Image = Image.FromFile(file); sz = pictureBox1.Size; a=sz.Width; b= sz.Height; } private void pictureBox1_MouseMove(object sender, MouseEventArgs e) { switch (e.Button) { case MouseButtons.Left: { rect = new Rectangle(rect.Left, rect.Top, e.X - rect.Left, e.Y - rect.Top); this.Invalidate(); y = flag.e; Application.DoEvents(); break; } } } private void pictureBox1_MouseDown(object sender, MouseEventArgs e) { rect = new Rectangle(e.X, e.Y, 0, 0); this.Invalidate(); } private void pictureBox1_Paint(object sender, PaintEventArgs e) { using (Pen pen = new Pen(Color.Red, 2)) e.Graphics.DrawRectangle(pen, rect); //e.Graphics.DrawString(label1.Text, label1.Font, new // SolidBrush(label1.ForeColor), label1.Left - pictureBox1.Left, label1.Top - pictureBox1.Top); if (label1.TextAlign == ContentAlignment.TopLeft) { e.Graphics.DrawString(label1.Text, label1.Font, new SolidBrush(label1.ForeColor), label1.Bounds); } else if (label1.TextAlign == ContentAlignment.TopCenter) { SizeF size = e.Graphics.MeasureString(label1.Text, label1.Font); float left = ((float)this.Width + label1.Left) / 2 - size.Width / 2; RectangleF rect1 = new RectangleF(left, (float)label1.Top, size.Width, label1.Height); e.Graphics.DrawString(label1.Text, label1.Font, new SolidBrush(label1.ForeColor), rect1); } else { SizeF size = e.Graphics.MeasureString(label1.Text, label1.Font); float left = (float)label1.Width - size.Width + label1.Left; RectangleF rect1 = new RectangleF(left, (float)label1.Top, size.Width, label1.Height); e.Graphics.DrawString(label1.Text, label1.Font, new SolidBrush(label1.ForeColor), rect1); } label1.Top = rect.Top; label1.Left = rect.Left; label1.Width = rect.Width; label1.Height = rect.Height; } private void saveToolStripMenuItem_Click(object sender, EventArgs e) { SaveFileDialog SaveFD1 = new SaveFileDialog(); //string Sd_file = ""; SaveFD1.FileName = ""; SaveFD1.InitialDirectory = "C"; SaveFD1.Title = "save file Name"; SaveFD1.Filter= "JPG|.jpg|Bmp|.bmp"; if (SaveFD1.ShowDialog() != DialogResult.Cancel) { System.IO.Stream filename = (System.IO.FileStream)SaveFD1.OpenFile(); if (SaveFD1.Filter == "JPG") pictureBox1.Image.Save(SaveFD1.FileName); //pictureBox1.Image.Save (filename, System.Drawing.Imaging.ImageFormat.Jpeg); else if (SaveFD1.Filter == "Bmp") { //pictureBox1.Image.Save(filename, System.Drawing.Imaging.ImageFormat.Bmp); } filename.Close(); } }

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  • why does the array doesn't get initialized by global variable , even though it should not?

    - by ashish yadav
    why does the array a does not get initialized by global variable 'size'. include int size=5; int main() { int a[size]={1,2,3,4,5}; printf("%d",a[0]); return 0; } the compilation error is shown as "variable-sized object may not be initialized". according to me the array should get initialized by 'size'. i apologize if i am not clear but i feel i have expressed myself well enough. thank you!!!!!!!!!!!

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  • Initializing a char array through passed pointer segfaults

    - by Bitgarden
    Ie., why does the following work: char* char_array(size_t size){ return new char[size]; } int main(){ const char* foo = "foo"; size_t len = strlen(foo); char* bar=char_array(len); memset(bar, 0, len+1); } But the following segfaults: void char_array(char* out, size_t size){ out= new char[size]; } int main(){ const char* foo = "foo"; size_t len = strlen(foo); char* bar; char_array(bar, len); memset(bar, 0, len+1); }

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  • Critique my heap debugger

    - by FredOverflow
    I wrote the following heap debugger in order to demonstrate memory leaks, double deletes and wrong forms of deletes (i.e. trying to delete an array with delete p instead of delete[] p) to beginning programmers. I would love to get some feedback on that from strong C++ programmers because I have never done this before and I'm sure I've done some stupid mistakes. Thanks! #include <cstdlib> #include <iostream> #include <new> namespace { const int ALIGNMENT = 16; const char* const ERR = "*** ERROR: "; int counter = 0; struct heap_debugger { heap_debugger() { std::cerr << "*** heap debugger started\n"; } ~heap_debugger() { std::cerr << "*** heap debugger shutting down\n"; if (counter > 0) { std::cerr << ERR << "failed to release memory " << counter << " times\n"; } else if (counter < 0) { std::cerr << ERR << (-counter) << " double deletes detected\n"; } } } instance; void* allocate(size_t size, const char* kind_of_memory, size_t token) throw (std::bad_alloc) { void* raw = malloc(size + ALIGNMENT); if (raw == 0) throw std::bad_alloc(); *static_cast<size_t*>(raw) = token; void* payload = static_cast<char*>(raw) + ALIGNMENT; ++counter; std::cerr << "*** allocated " << kind_of_memory << " at " << payload << " (" << size << " bytes)\n"; return payload; } void release(void* payload, const char* kind_of_memory, size_t correct_token, size_t wrong_token) throw () { if (payload == 0) return; std::cerr << "*** releasing " << kind_of_memory << " at " << payload << '\n'; --counter; void* raw = static_cast<char*>(payload) - ALIGNMENT; size_t* token = static_cast<size_t*>(raw); if (*token == correct_token) { *token = 0xDEADBEEF; free(raw); } else if (*token == wrong_token) { *token = 0x177E6A7; std::cerr << ERR << "wrong form of delete\n"; } else { std::cerr << ERR << "double delete\n"; } } } void* operator new(size_t size) throw (std::bad_alloc) { return allocate(size, "non-array memory", 0x5AFE6A8D); } void* operator new[](size_t size) throw (std::bad_alloc) { return allocate(size, " array memory", 0x5AFE6A8E); } void operator delete(void* payload) throw () { release(payload, "non-array memory", 0x5AFE6A8D, 0x5AFE6A8E); } void operator delete[](void* payload) throw () { release(payload, " array memory", 0x5AFE6A8E, 0x5AFE6A8D); }

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  • How to unblend two images from a blend image

    - by gavishna
    I have blended/merged 2 images img1 and img2 with this code which is woking fine.What i want to know is how to obtain the original two images img1 and img2.The code for blending is as under img1=imread('C:\MATLAB7\Picture5.jpg'); img2=imread('C:\MATLAB7\Picture6.jpg'); for i=1:size(img1,1) for j=1:size(img1,2) for k=1:size(img1,3) output(i,j,k)=(img1(i,j,k)+img2(i,j,k))/2; end end end imshow(output,[0 255]);

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  • JQuery Onclick display selected info

    - by Emily
    I want to display the selected price, category and size on the dropdown slideingDiv. But what I have done below is not working. I have try to echo out to see if the data have been sent thought but I got nothing. Is anything wrong with my code? Script <script type="text/javascript"> $(document).ready(function () { $(".slidingDiv").hide(); $(".show_hide").show(); $('.show_hide').click(function () { $(".slidingDiv").slideToggle(); }); }); </script> Button <button a href="product.php?ProdID=<?php echo $id; ?>" class="show_hide" id="button" name="button">Add to cart</a></button> PHP <div class="slidingDiv"> <?php dbconnect(); $pid = $_POST['pid']; $length = $_POST["size"]; $qty = $_POST['Qty']; $Category = $_POST['Category']; $stmt4 = $conn->prepare(" SELECT Product.Name as ProductName, Category.Name, size, Price FROM item_Product, Product, Category WHERE Product.ProdID =:pid AND size= :length AND Category.Name = :Category Limit 1"); $stmt4->bindParam('pid',$pid); $stmt4->bindParam('length',$length); $stmt4->bindParam('Category',$Category); $stmt4->execute(); foreach ($stmt4->fetchAll(PDO::FETCH_ASSOC) as $row4 ) { $product_name = $row4["ProductName"]; $price = $row4["Price"]; $length = $row4["size"]; $Category = $row4["Name"]; ?> Item was added shopping bag </br> Name:<?php echo $row4['ProductName']; ?> </br> Length:<?php echo $row4['size']; ?> </br> Category:<?php echo $row4['Name']; ?> </br> Price:<?php echo $row4['Price']; ?> </br> <?php } ?> <a href="cart.php">View Cart</a> </div>

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  • HashMap Memory Leak because of Dynamic Array

    - by Jake M
    I am attempting to create my own HashMap to understand how they work. I am using an array of Linked Lists to store the values(strings) in my hashmap. I am creating the array like this: Node** list; Instead of this: Node* list[nSize]; This is so the array can be any size at runtime. But I think I am getting a memory leak because of how I am doing this. I dont know where the error is but when I run the following simple code the .exe crashes. Why is my application crashing and how can I fix it? Note: I am aware that using a vector would be much better than an array but this is just for learning and I want to challenge myself to create the hashmap using a 'Dynamic' Array. PS: is that the correct term(Dynamic Array) for the kind of array I am using? struct Node { // to implement }; class HashMap { public: HashMap(int dynSize) { *list = new Node[dynSize]; size = dynSize; for (int i=0; i<size; i++) list[i] = NULL; cout << "END\n"; } ~HashMap() { for (int i=0; i<size; i++) delete list[i]; } private: Node** list; // I could use a vector here but I am experimenting with a pointer to an array(pointer), also its more elegant int size; }; int main() { // When I run this application it crashes. Where is my memory leak? HashMap h(5); system("PAUSE"); return 0; }

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  • why my customized marker not showing up in openstreet maps

    - by troy
    I have following java script used for showing the customized marker. But for some reasons its showing up the default marker.. function init() { map = new OpenLayers.Map("basicMap"); var mapnik = new OpenLayers.Layer.OSM(); var fromProjection = new OpenLayers.Projection("EPSG:4326"); var toProjection = new OpenLayers.Projection("EPSG:900913"); var position = new OpenLayers.LonLat(-6.242981,53.331201).transform( fromProjection, toProjection); var zoom = 12; map.addLayer(mapnik); var markers = new OpenLayers.Layer.Markers( "Markers" ); map.addLayer(markers); var size = new OpenLayers.Size(16,28); var offset = new OpenLayers.Pixel(-(size.w*0), -(size.h*1)); var icon = new OpenLayers.Icon('http://m.osmtools.de/images/pin_red.png',size,offset); markers.addMarker(new OpenLayers.Marker(position),icon); map.setCenter(position, zoom ); } And here is my html: <body onload="init();"> <div id="basicMap"></div> </body> I dont understand what wrong with my code .... Please help me.. THank You

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  • How to get number of bytes read from QTextStream

    - by user261882
    The following code I am using to find the number of read bytes from QFile. With some files it gives the correct file size, but with some files it gives me a value that is approximatively fileCSV.size()/2. I am sending two files that have same number of characters in it, but have different file sizes link text. Should i use some other objects for reading the QFile? QFile fileCSV("someFile.txt"); if ( !fileCSV.open(QIODevice::ReadOnly | QIODevice::Text)) emit errorOccurredReadingCSV(this); QTextStream textStreamCSV( &fileCSV ); // use a text stream int fileCSVSize = fileCSV.size()); qint64 reconstructedCSVFileSize = 0; while ( !textStreamCSV.atEnd() ) { QString line = textStreamCSV.readLine(); // line of text excluding '\n' if (!line.isEmpty()) { reconstructedCSVFileSize += line.size(); //this doesn't work always reconstructedCSVFileSize += 2; } else reconstructedCSVFileSize += 2; } I know that reading the size of QString is wrong, give me some other solutions if you can. Thank you.

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  • crash when using stl vector at instead of operator[]

    - by Jamie Cook
    I have a method as follows (from a class than implements TBB task interface - not currently multithreading though) My problem is that two ways of accessing a vector are causing quite different behaviour - one works and the other causes the entire program to bomb out quite spectacularly (this is a plugin and normally a crash will be caught by the host - but this one takes out the host program as well! As I said quite spectacular) void PtBranchAndBoundIterationOriginRunner::runOrigin(int origin, int time) const // NOTE: const method { BOOST_FOREACH(int accessMode, m_props->GetAccessModes()) { // get a const reference to appropriate vector from member variable // map<int, vector<double>> m_rowTotalsByAccessMode; const vector<double>& rowTotalsForAccessMode = m_rowTotalsByAccessMode.find(accessMode)->second; if (origin != 129) continue; // Additional debug constrain: I know that the vector only has one non-zero element at index 129 m_job->Write("size: " + ToString(rowTotalsForAccessMode.size())); try { // check for early return... i.e. nothing to do for this origin if (!rowTotalsForAccessMode[origin]) continue; // <- this works if (!rowTotalsForAccessMode.at(origin)) continue; // <- this crashes } catch (...) { m_job->Write("Caught an exception"); // but its not an exception } // do some other stuff } } I hate not putting in well defined questions but at the moment my best phrasing is : "WTF?" I'm compiling this with Intel C++ 11.0.074 [IA-32] using Microsoft (R) Visual Studio Version 9.0.21022.8 and my implementation of vector has const_reference operator[](size_type _Pos) const { // subscript nonmutable sequence #if _HAS_ITERATOR_DEBUGGING if (size() <= _Pos) { _DEBUG_ERROR("vector subscript out of range"); _SCL_SECURE_OUT_OF_RANGE; } #endif /* _HAS_ITERATOR_DEBUGGING */ _SCL_SECURE_VALIDATE_RANGE(_Pos < size()); return (*(_Myfirst + _Pos)); } (Iterator debugging is off - I'm pretty sure) and const_reference at(size_type _Pos) const { // subscript nonmutable sequence with checking if (size() <= _Pos) _Xran(); return (*(begin() + _Pos)); } So the only difference I can see is that at calls begin instead of simply using _Myfirst - but how could that possibly be causing such a huge difference in behaviour?

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  • cant print the data of the uploaded blob

    - by Bunny Rabbit
    int start=0,flag=1; long size=blobInfo.getSize(),fetched=0,fetch; byte temp[] = null; while(fetched<size){ if(size-fetched>MAX_BLOB_FETCH_SIZE) fetch=MAX_BLOB_FETCH_SIZE; else fetch=size-fetched; temp=blobstoreService.fetchData(blobKey,fetched,fetch ); fetched+=fetch; out.println(temp); } i tried to print the data of the uploaded text file using the above code but it doesn't seem to be working .

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  • Display radio buttons in prolog xpce

    - by Ben03
    I created a menu with Radio Buttons in XPCE prolog, but my radio buttons are showing on the same line, and I want to have each one on a separate line. My code is the following: new(D, dialog('title')), send(D, size, size(500,500)), send(D, append, new(Op, menu(options, marked))), send(Op, append, option1), send(Op, append, option2), send(Op, append, option3), send(Op, size, size(300,300)), send(D, display, Op, point(100, 40)), send(D, append(new(B1,button(ok, message(D, return, Op?selection))))), send(D, display, B1, point(100, 100)), send(D, append(button(cancel, message(D, return, @nil)))), send(D, default_button(ok)), get(D, confirm, Rval), free(D). Thanks in advance

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  • Hiding iAds when loading?

    - by Jesper Mansa
    I'm trying to make an ios app with an iAd in the bottom but lifted a little bit. It actually woks ok but when the iAd is loading it shows an white area just below where the iAd should be. When its done loading the iAd jumps up in the right position. I think normaly the button is loaded outside the screen and nthen pop ups when done but because mine add is liftet a little I can see the loading area... Is there a way to make the iAd load in the sides instead and then popin from the side? Here is what I have so far: frame.origin.x = ( _screenWidth - frame.size.width ) / 2; if( calculateForBannerOnBottom ) frame.origin.y = _screenHeight - (frame.size.height/1.2); else frame.origin.y = -_adView.frame.size.height+(frame.size.height/2.4); Hoping 4 help and thanks in advance :-)

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  • Drupal, ImageCache module not scaling properly

    - by Patrick
    hi, I've set on imagecache a fixed scale for my images (230 x 150). Upscaling option is unchecked. Successively, I've uploaded new images (original size 230 x 150) but for some reason they are resized: 80 x 52 Instead, if I check the "Allow upscaling" option, the size is correct, but the quality is very bad. So basically, it behaves like if my images are very small, but my original images have the correct size. thanks

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  • how to send Zip(binary) file Through HTTP post method in mFC/C++?

    - by Mahantesh
    I am posting the file to server and its working fine, But the my code fails when i try to post the .zip file. May be my code is wrong in the reading the zip file contents data. ifstream::pos_type size; char * memblock; ifstream file ("example.zip", ios::in|ios::binary|ios::ate); if (file.is_open()) { size = file.tellg(); memblock = new char [size]; file.seekg (0, ios::beg); file.read (memblock, size); file.close(); postBody.AppendFormat("Content-Disposition: form-data; name=\"datafile\"; filename=\"%s\"; \r\n\n%s", zipFilePath, memblock); postBody.AppendFormat("\r\n--%s--\r\n", boundary); }

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  • codeigniter populate form from database

    - by Delirium tremens
    In the controller, I have... function update($id = null) { $this->load->database(); // more code $data = array(); $data = $this->db->get_where( 'users', array( 'id' => $id ) ); $data = $data->result_array(); $data = $data[0]; // more code $this->load->view('update', $data); } In the view, I have... <h5>Username</h5> <input type="text" name="username" value="<?php echo set_value('username'); ?>" size="50" /> <h5>Email</h5> <input type="text" name="email" value="<?php echo set_value('email'); ?>" size="50" /> <h5>Email Confirmation</h5> <input type="text" name="emailconf" value="<?php echo set_value('emailconf'); ?>" size="50" /> <h5>Password</h5> <input type="text" name="password" value="<?php echo set_value('password'); ?>" size="50" /> <h5>Password Confirmation</h5> <input type="text" name="passconf" value="<?php echo set_value('passconf'); ?>" size="50" /> set_value() isn't reading $data search for value="" at http://codeigniter.com/forums/viewthread/103837/ The poster uses only the set_value() function between "" in value="". I'm wondering how to do the same, but I can't get it to work. Help?

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  • graph and all pairs shortest path in java

    - by Sandra
    I am writing a java program using Flyod-Warshall algorithm “All pairs shortest path”. I have written the following : a0 is the adjacency matrix of my graph, but has infinity instead of 0. vList is the list of vertexes and the cost for each edge is 1. Path[i][j] = k+1 means for going from I to j you first go to k then j int[][] path = new int[size][size]; for(int i = 0; i<path.length;i++) { for(int j = 0; j<path.length; j++) { if(adjM[i][j]==1) path[i][j]=j+1; } } //*************** for (int k = 0; k < vList.size(); k++) for (int i = 0; i < vList.size(); i++) for (int j = 0; j < vList.size(); j++) { if (a0[i][j]>a0[i][k]+ a0[k][j]) path[i][j] = k + 1; a0[i][j] = Math.min(a0[i][j], a0[i][k] + a0[k][j]); } After running this code, in the result a0 is correct, but path is not correct and I don’t know why!. Would you please help me?

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