private void ImageSetPixelSize()
{
double dpiScale = 1.0;
var hwndTarget = PresentationSource.FromVisual(this).CompositionTarget as HwndTarget;
if (hwndTarget != null)
{
dpiScale = hwndTarget.TransformToDevice.M11;
}
int surfWidth = (int)(Host.ActualWidth < 0 ? 0 : Math.Ceiling(Host.ActualWidth * dpiScale));
int surfHeight = (int)(Host.ActualHeight < 0 ? 0 : Math.Ceiling(Host.ActualHeight * dpiScale));
InteropImage.SetPixelSize(surfWidth, surfHeight);
bool isVisible = (surfWidth != 0 && surfHeight != 0);
if (lastVisible != isVisible)
{
lastVisible = isVisible;
if (lastVisible)
{
CompositionTarget.Rendering += CompositionTarget_Rendering;
}
else
{
CompositionTarget.Rendering -= CompositionTarget_Rendering;
}
}
}
private void Host_SizeChanged(object sender, SizeChangedEventArgs e)
{
// TODO: handle non-96 DPI
int surfWidth = (int)(host.ActualWidth < 0 ? 0 : Math.Ceiling(host.ActualWidth));
int surfHeight = (int)(host.ActualHeight < 0 ? 0 : Math.Ceiling(host.ActualHeight));
InteropImage.SetPixelSize(surfWidth, surfHeight);
}
private void InteropImage_IsFrontBufferAvailableChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue == false)
{
// force recreation of lost frontbuffer
Size size = Utils.WpfSizeToPixels(ImageGrid);
InteropImage.SetPixelSize((int)size.Width + 1, (int)size.Height + 1);
InteropImage.SetPixelSize((int)size.Width, (int)size.Height);
InteropImage.RequestRender();
}
}
private void MainWindow_SizeChanged(object sender, SizeChangedEventArgs e)
{
Grid g = (Grid)Content;
if (g.ActualWidth > 0 && g.ActualHeight > 0)
{
InteropImage.SetPixelSize((int)g.ActualWidth, (int)g.ActualHeight);
}
else
{
Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Background, (Action <object, SizeChangedEventArgs>)MainWindow_SizeChanged, null, null);
}
}
void textPropertyChanged(string newText)
{
//Debug.WriteLine(newText);
if (null != _dwTextBlockLib)
{
_dwTextBlockLib.setText(newText);
Size textSize = _dwTextBlockLib.getTextSize();
// サイズ変更
grid.Width = textSize.Width;
grid.Height = textSize.Height;
InteropImage.SetPixelSize((int)Math.Ceiling(textSize.Width), (int)Math.Ceiling(textSize.Height));
}
}
private void ImageHostGridSizeChanged(object sender, SizeChangedEventArgs e)
{
var dpiScale = 1.0; // default value for 96 dpi
// determine DPI
// (as of .NET 4.6.1, this returns the DPI of the primary monitor, if you have several different DPIs)
var hwndTarget = PresentationSource.FromVisual(this)?.CompositionTarget as HwndTarget;
if (hwndTarget != null)
{
dpiScale = hwndTarget.TransformToDevice.M11;
}
var surfWidth = (int)(ImageHostGrid.ActualWidth < 0 ? 0 : Math.Ceiling(ImageHostGrid.ActualWidth * dpiScale));
var surfHeight = (int)(ImageHostGrid.ActualHeight < 0 ? 0 : Math.Ceiling(ImageHostGrid.ActualHeight * dpiScale));
// Notify the D3D11Image of the pixel size desired for the DirectX rendering.
// The D3DRendering component will determine the size of the new surface it is given, at that point.
InteropImage.SetPixelSize(surfWidth, surfHeight);
// Stop rendering if the D3DImage isn't visible - currently just if width or height is 0
// TODO: more optimizations possible (scrolled off screen, etc...)
var isVisible = surfWidth != 0 && surfHeight != 0;
if (lastVisible == isVisible)
{
return;
}
lastVisible = isVisible;
if (lastVisible)
{
CompositionTarget.Rendering += CompositionTarget_Rendering;
}
else
{
CompositionTarget.Rendering -= CompositionTarget_Rendering;
}
}
private void Host_SizeChanged(object sender, SizeChangedEventArgs e)
{
double dpiScale = 1.0; // default value for 96 dpi
// determine DPI
// (as of .NET 4.6.1, this returns the DPI of the primary monitor, if you have several different DPIs)
var hwndTarget = PresentationSource.FromVisual(this).CompositionTarget as HwndTarget;
if (hwndTarget != null)
{
dpiScale = hwndTarget.TransformToDevice.M11;
}
int surfWidth = (int)(host.ActualWidth < 0 ? 0 : Math.Ceiling(host.ActualWidth * dpiScale));
int surfHeight = (int)(host.ActualHeight < 0 ? 0 : Math.Ceiling(host.ActualHeight * dpiScale));
// notify the D3D11Image and the DxRendering component of the pixel size desired for the DirectX rendering.
InteropImage.SetPixelSize(surfWidth, surfHeight);
NativeMethods.SetRenderSize(surfWidth, surfHeight);
// Stop rendering if the D3DImage isn't visible - currently just if width or height is 0
// TODO: more optimizations possible (scrolled off screen, etc...)
bool isVisible = (surfWidth != 0 && surfHeight != 0);
if (lastVisible != isVisible)
{
lastVisible = isVisible;
if (lastVisible)
{
CompositionTarget.Rendering += CompositionTarget_Rendering;
}
else
{
CompositionTarget.Rendering -= CompositionTarget_Rendering;
}
}
}
private void SetInteropImagePixelSize()
{
double dpiScale = 1.0; // default value for 96 dpi
// determine DPI
// (as of .NET 4.6.1, this returns the DPI of the primary monitor, if you have several different DPIs)
PresentationSource presentationSource = PresentationSource.FromVisual(this);
var hwndTarget = presentationSource?.CompositionTarget as HwndTarget;
if (hwndTarget != null)
{
dpiScale = hwndTarget.TransformToDevice.M11;
}
int surfWidth = (int)(ImageContainer.ActualWidth < 0 ? 0 : Math.Ceiling(ImageContainer.ActualWidth * dpiScale));
int surfHeight = (int)(ImageContainer.ActualHeight < 0 ? 0 : Math.Ceiling(ImageContainer.ActualHeight * dpiScale));
// notify the D3D11Image and the DxRendering component of the pixel size desired for the DirectX rendering.
InteropImage.SetPixelSize(surfWidth, surfHeight);
//make sure the resources are created
SyncGeometriesWithShapes();
SyncBrushesWithShapes();
}
private void Grid_SizeChanged(object sender, SizeChangedEventArgs e)
{
Size size = Utils.WpfSizeToPixels(ImageGrid);
InteropImage.SetPixelSize((int)size.Width, (int)size.Height);
}