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  • GNOME Shell Overview animation is slow on my NVIDIA 320M

    - by AllanCaeg
    I'm running Ubuntu 10.10 on my MacBook Air 11" (late 2010 model 3,1). Compiz runs fine, as well as most of GNOME Shell's animations. The animation for switching to and from GNOME Shell overview is just very slow. Unfortunately, it's the most common animation on Shell. I already applied cd ~/gnome-shell/source/gnome-shell $ curl http://bugzilla-attachments.gnome.org/attachment.cgi?id=157326 > shell-animations-nvidia.patch $ git am shell-animations-nvidia.pat that I found from http://live.gnome.org/GnomeShell/SwatList , but the issue's still here. How do I fix this?

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  • What's the best way to create animations when doing Android development?

    - by Adam Smith
    I'm trying to create my first Android game and I'm currently trying to figure out (with someone that will do the drawings and another programmer) what the best way to create animation is. (Animations such as a character moving, etc.) At first, the designer said that she could draw objects/characters and animate them with flash so she didn't have to draw every single frame of an action. The other programmer and I don't know Flash too much so I suggested extracting all the images from the Flash animation and making them appear one after the other when the animation is to start. He said that would end up taking too much resource on the CPU and I tend to agree, but I don't really see how we're supposed to make smooth animations without it being too hard on the hardware and, if possible, not have the designer draw every single frame on Adobe Illustrator. Can an experienced Android game developper help me balance this out so we can move on to other parts of the game as I have no idea what the best way to create animations is.

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  • Custom animation problem in Powerpoint 2003

    - by Tom Gullen
    I have an animation of a grid that scrolls to the left. It's a Gantt chart, and it works fine. I then have several elements I want to drop on the grid, I give them all the same movement animation and this works fine, everything scrolls at the same speed and time. However I want to add entrance animations for the elements on the grid, I can have it so that when all the entrance animations are complete then it starts scrolling, but I want it to enter whilst it is scrolling. How do you have an entrance animation for an element and keep it's position updated? The entrance animation and movement animation don't seem to work together as expected when run simultaneously. cheers!

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  • Dealing with multiple animation state in one sprite sheet image using html5 canvas

    - by Sora
    I am recently creating a Game using html5 canvas .The player have multiple state it can walk jump kick and push and multiple other states my question is simple but after some deep research i couldn't find the best way to deal with those multiple states this is my jsfiddle : http://jsfiddle.net/Z7a5h/5/ i managed to do one animation but i started my code in a messy way ,can anyone show me a way to deal with multiple state animation for one sprite image or just give a useful link to follow and understand the concept of it please .I appreciate your help if (!this.IsWaiting) { this.IsWaiting = true; this.lastRenderTime = now; this.Pos = 1 + (this.Pos + 1) % 3; } else { if (now - this.lastRenderTime >= this.RenderRate) this.IsWaiting = false; }

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  • How do you deal with transitions in animating walking?

    - by Aerovistae
    I'm pretty new to this whole animating models thing. Just learning the ropes. I got a nice walking animation going, which I can loop while a character is walking, but what about when they stop walking? I mean, they could be at any point in the animation at the time the player stops walking. How do I get them to smoothly return to a standing still position without having them snap into that position? The same goes for starting walking from a standing still position. Do you need a separate animation? How is this dealt with?

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  • WPF CheckBox style with the TextWrapping

    - by Shurup
    I need you a TextWrapping in the WPF CheckBox. Please look at this two samples: <CheckBox> <TextBlock TextWrapping="Wrap" Text="_This is a long piece of text attached to a checkbox."/> </CheckBox> <CheckBox> <AccessText TextWrapping="Wrap" Text="_This is a long piece of text attached to a checkbox."/> </CheckBox> If I use a TextBlock in the Content of the CheckBox, the check element (vertical alignment is top) and the text displays properly, but not the accelerator. If I use an AccessText in the Content of the CheckBox, the check element displays wrong (vertical alignment is center). How to change the style of the elements to display this CheckBox correct?

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  • WPF TreeView databinding to hide/show expand/collapse icon

    - by Julian Lettner
    I implemented a WPF load-on-demand treeview like described in this (very good) article. In the mentioned solution a dummy element is used to preserve the expand + icon / treeview item behavior. The dummy item is replaced with real data, when the user clicks on the expander. I want to refine the model by adding a property public bool HasChildren { get { ... } } to my backing TreeNodeViewModel. Question: How can I bind this property to hide/show the expand icon (in XAML)? I am not able to find a suitable trigger/setter combination. (INotifyPropertyChanged is properly implemented.) Thanks for your time. Update 1: I want to use my property public bool HasChildren instead of using the dummy element. Determining whether or not an item has children is somewhat costly, but still much cheaper than fetching the children.

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  • WPF ListView ScrollViewer Double-Click Event

    - by Sentax
    Doing the below will reproduce my problem: New WPF Project Add ListView Name the listview: x:Name="lvList" Add enough ListViewItems to the ListView to fill the list completely so a vertical scroll-bar appears during run-time. Put this code in the lvList.MouseDoubleClick event Debug.Print("Double-Click happened") Run the application Double-click on the LargeChange area of the scroll-bar (Not the scroll "bar" itself) Notice the Immediate window printing the double-click happened message for the ListView How do I change this behavior so MouseDoubleClick only happens when the mouse is "over" the ListViewItems and not when continually clicking the ScrollViewer to scroll down/up in the list?

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  • WPF WebBrowser NavigateToString vs NavigateToStream (hebrew/non-utf8 encodings)

    - by David E
    When I use WPF WebBrowser's NavigateToString method to display UTF8 html (with hebrew text in it) it's displayed perfectly. However, when I try to use the NavigateToString to display html with hebrew text in it in a non-utf8 encoding (CodePage 1255 to be exact) the hebrew is messed up. I checked the cp1255 string in Visual Studio's debugger and it looks great, and also when I save the source of the web browser's contents and open it with an external browser it looks great. If I use the NavigateToStream method instead of the NavigateToString method it works great. What's the problem with the NavigateToString? am I doing something wrong?

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  • WPF - Pan & Zoom Image

    - by Yuval Peled
    I want to create a simple image viewer in WPF that will enable the user to: Pan (by mouse dragging the image). Zoom (with a slider). Show overlays (rectangle selection for example). Show original image (with scroll bars if needed). Can you explain how to do it? I didn't find a good sample on the web. Should I use ViewBox? Or ImageBrush? Do I need ScrollViewer? Thanks!

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  • Paste Event in a WPF TextBox

    - by code-zoop
    I have created a custom control inheriting TextBox. This custom control is a numeric TextBox, only supporting numbers. I am using OnPreviewTextInput to check each new character being typed to see if the character is a valid input. This works great. However, if I paste the text into the TextBox, OnPreviewTextInput is not fired. What is the best way to capture pasted text in a TextBox? Also, I have a problem when the back space is pressed, I can't figure out what event this will fire. OnPreviewTextInput is not fired! any ideas how to capture pasted text and back space events in WPF TextBox? Thanks

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  • How to make WPF DataGrid Column Header transparent

    - by joerage
    Hi, I am trying to make the column header of my WPF Datagrid to be transparent. I am able to set it to a color without problem, but I can't have it transparent. Here is what I tried: <Style x:Key="DatagridColumnHeaderStyle" TargetType="{x:Type tk:DataGridColumnHeader}"> <Setter Property="Background" Value="Transparent" /> <Setter Property="Foreground" Value="#C2C4C6" /> </Style> <Style x:Key="DashboardGridStyle" TargetType="{x:Type tk:DataGrid}"> <Setter Property="ColumnHeaderStyle" Value="{StaticResource DatagridColumnHeaderStyle}" /> <Setter Property="Background" Value="Transparent" /> <Setter Property="RowBackground" Value="Transparent" /> </Style> <tk:DataGrid Style="{StaticResource DashboardGridStyle}" > ... </tk:DataGrid> With this code, it seems to take the default brush. What am I missing?

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  • WPF HwndHost keyboard focus

    - by Adal
    The chart area in the screenshot is a HwndHost control which hosts a native Win32 window (with it's own registered WNDCLASS) implemented in C++/CLI and drawn with Direct2D. The HwndHost is hosted in a WPF Border control. The problem I have is that I can't set the keyboard focus to the hosted Win32 window. I want the focus to move to the hosted Win32 window when the used clicks on the chart area. I tried calling SetFocus on WM_LBUTTONDOWN, but that screws app the focus in the rest of the application. Currently, even if I click on the Win32 window, the focus remains on the tree-view on the left, and if I press the up/down cursor keys, the tree-view will get them, not the chart window. How do I make the hosted Win32 window receive keyboard input from when the user clicks on the chart area, until it clicks on another control (like the tree-view, or the toolbar)?

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  • Rendering WPF DrawingGroup to single ImageSource

    - by Xander
    Currently I'm using a System.Windows.Media.DrawingGroup to store some tiled images (ImageDrawing) inside the Children-DrawingCollection property. Well the problem is now, this method gets really slow if you display the entire DrawingGroup in an Image control, because my DrawingGroup can contain hundreds or even thousands of small images it can really mess up the performance. So my first thought was to somehow render a single image from all the small ones inside the DrawingGroup and then only display that image, that would be much faster. But as you might have figured out I haven't found any solution so simply combine several images with WPF Imaging. It would really be great if someone could help with this problem or tell me how i can improve the performance with the DrawingGroup or even use another approach. One last thing, currently I'm using a RenderTargetBitmap to generate a single BitmapSource from the DrawingGroup, this approach isn't really faster, but it makes the scrolling and working on the Image control at least a little smoother.

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  • Custom CheckBox in WPF DataGrid does not update binding

    - by Pakman
    In my Visual Studio 2010 WPF application, I have the following (simplified) style: <Style x:Key="MyStyle" TargetType="{x:Type CheckBox}"> <Setter Property="Background" Value="Blue" /> </Style> If I use it as the ElementStyle AND EditingElementStyle in my DataGridCheckBoxColumn: <DataGridCheckBoxColumn Binding="{Binding IsEnabled}" ElementStyle="{StaticResource MyStyle}" EditingElementStyle="{StaticResource MyStyle}" /> Then my binding, IsEnabled, does not toggle when I check/uncheck a row's checkbox. If I remove either ElementStyle, EditingElementStyle, or both, then the binding updates no problem. Why is this?! Also, I tried to work around the problem using the following code: <DataGridTemplateColumn> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <CheckBox IsChecked="{Binding IsEnabled}" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> However, the problem remains.

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  • WPF FlowDocument - Absolute Character Position

    - by Alan Spark
    I have a WPF RichTextBox that I am typing some text into and then parsing the whole of the text to do processing on. During this parse, I have the absolute character positions of the start and end of each word. I would like to use these character positions to apply formatting to certain words. However, I have discovered that the FlowDocument uses TextPointer instances to mark positions in the document. I have found that I can create a TextRange by constructing it with start and end pointers. Once I have the TextRange I can easily apply formatting to the text within it. I have been using GetPositionAtOffset to get a TextPointer for my character offset but suspect that its offset is different from mine because the selected text is in a slightly different position from what I expect. My question is, how can I accurately convert an absolute character position to a TextPointer?

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  • WPF Frame accessing parent page controls

    - by Mitch
    I have a WPF page that contains a Listbox and a frame. The frame has various pages loaded into it determined by the selection within the Listbox. Each page within the frame has a variety of different input boxes and has a Save Cancel button. When the Save button is clicked I need the content to be saved to the database and the Listbox in the parent page to be refreshed to reflect the new data. Saving the data is easy but how do I initiate a refresh on the contents of the Listbox in the parent page when calling it from the page that inside the frame? I need to somehow be able to access the parent pages controls to do this. Any ideas?

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  • WPF, PreviewKeyDown event and underscore char

    - by commanderz
    Hi, I'm catching key hits with PreviewKeyDown event in my WPF component. I need to distinguish characters being typed: letters vs. numbers vs. underscore vs. anything else. Letters and numbers work fine (just convert the Key property of the KeyEventArgs object to string and work with character 0 of that string), but this won't work for underscore. It's ToString value depends on localized keyboard settings (it shows up as "OemMinus" on EN/US keyboard and "OemQuestion" on CZ/QWERTY keyboard). So how can I RELIABLY find out, if the typed char is underscore in the PreviewKeyDown event? Thanks for any help

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  • C# / WPF / .NET - Drag and drop to Desktop / Explorer

    - by Dänu
    Hey Guys Following my scenario. I got an Application which loads a Filestructure (Folders, Files) from a Database into a WPF ListView. Now I'd like to grab a file from this ListView, drag it over my Desktop (or some open explorer window) and drop it there. Basic Drag and Drop, nothing fancy. This sounds like a "standard" function for a windows application - but google won't help. So how can I achieve this? Interops? Thanks Edit: Thanks for the solution, I still had to do some googling. Here's my complete solution.

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  • WPF TextBlock highlight certan parts based on search condition

    - by Daniil Harik
    Hello, I have TextBlock that has Inlines dynamicly added to it (basically bunch of Run objects that are either italic or bold). In my application I have search function. I want to be able to highlight TextBlock's text that is in being searched for. By highlighting I mean changing certain parts of TextBlock text's color (keeping in mind that it may highlight several different Run objects at a time). I have tried this example http://blogs.microsoft.co.il/blogs/tamir/archive/2008/05/12/search-and-highlight-any-text-on-wpf-rendered-page.aspx But it seams very unstable :( Is there easy way to solve this problem?

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  • WPF Combobox textbox not updating when binding changes.

    - by WillH
    I have a WPF CombBox as follows: <ComboBox ItemsSource="{Binding Source={StaticResource myList}}" SelectedItem="{Binding Path=mySelectedItem}" /> The problem I have is that when the bound value changes, the selected value in the combobox's textbox does not update. (Note - the values in the combobox list do update). I am using MVVM so I can detect in the view model when the binding changes and call a property changed event and this is updating the combobox, but not the value displayed within the textbox. I think this could be done in the template of the combobox - somehow make the textbox be bound to the selecteditem of the combobox, or always update when it updates? I don't know how to do this though so any advice would be most appreciated.

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