/// <summary>
/// Creates an instance of HwndDpiChangedEventArgs
/// </summary>
/// <param name="oldDpi">X-Axis DPI value before DPI changed</param>
/// <param name="newDpi">Y-Axis DPI value before DPI changed</param>
/// <param name="suggestedRect">Suggested client rectangle, scaled for the new DPI</param>
/// <remarks>
/// If <paramref name="suggestedRect"/> is <see cref="Rect.Empty"/>, this constructor will act as if
/// no suggestion for the new client rectangle has been provided.
/// When this happens, DPI-change processing logic in <see cref="HwndTarget.OnMonitorDPIChanged"/> will
/// not attempt to resize the window. It will assume that the top-level WM_DPICHANGED resulted
/// in a cascaded set of changes that adjusted the client areas for all child-windows appropriately
/// in response to DPI changes. <see cref="HwndTarget.OnMonitorDPIChanged"/> will simply
/// invalidate and repaint the window if this happens.
/// </remarks>
internal HwndDpiChangedEventArgs(DpiScale oldDpi, DpiScale newDpi, Rect suggestedRect) :
base(false)
{
OldDpi = oldDpi;
NewDpi = newDpi;
SuggestedRect = suggestedRect;
}
public static void ShowSystemMenu(Window window, Point screenLocation)
{
Verify.IsNotNull <Window>(window, "window");
DpiScale dpi = window.GetDpi();
SystemCommands.ShowSystemMenuPhysicalCoordinates(window, DpiHelper.LogicalPixelsToDevice(screenLocation, dpi.DpiScaleX, dpi.DpiScaleY));
}
internal HwndDpiChangedEventArgs(double oldDpiX, double oldDpiY, double newDpiX, double newDpiY, IntPtr lParam) : base(false)
{
OldDpi = new DpiScale(oldDpiX / DpiUtil.DefaultPixelsPerInch, oldDpiY / DpiUtil.DefaultPixelsPerInch);
NewDpi = new DpiScale(newDpiX / DpiUtil.DefaultPixelsPerInch, newDpiY / DpiUtil.DefaultPixelsPerInch);
NativeMethods.RECT suggestedRect = Marshal.PtrToStructure <NativeMethods.RECT>(lParam);
this.SuggestedRect = new Rect((double)suggestedRect.left, (double)suggestedRect.top, (double)suggestedRect.Width, (double)suggestedRect.Height);
}
internal DpiRecursiveChangeArgs(DpiFlags dpiFlags, DpiScale oldDpiScale,
DpiScale newDpiScale)
{
DpiScaleFlag1 = dpiFlags.DpiScaleFlag1;
DpiScaleFlag2 = dpiFlags.DpiScaleFlag2;
Index = dpiFlags.Index;
OldDpiScale = oldDpiScale;
NewDpiScale = newDpiScale;
}
public void UpdateSize(SysWin.DpiScale dpi, double newWidth, double newHeight)
{
var newDpiX = dpi.PixelsPerInchX;
var newDpiY = dpi.PixelsPerInchY;
var oldHeight = graphHeight;
var oldWidth = graphWidth;
graphHeight = (float)(newWidth * newDpiY / 96.0);
graphWidth = (float)(newHeight * newDpiX / 96.0);
UpdateSizeAndPositions();
// Update bars.
for (int i = 0; i < barValueMap.Count; i++)
{
var bar = (Bar)barValueMap[i];
var xOffset = shapeGraphOffsetX + barSpacing + (barWidth + barSpacing) * i;
var height = bar.Height;
if (oldHeight != newHeight)
{
height = GetAdjustedBarHeight(maxBarValue, graphData[i]);
}
bar.UpdateSize(barWidth, height);
bar.Root.Offset = new System.Numerics.Vector3(xOffset, shapeGraphContainerHeight, 0);
bar.OutlineRoot.Offset = new System.Numerics.Vector3(xOffset, shapeGraphContainerHeight, 0);
}
// Scale text size.
textSize = textSize * graphHeight / oldHeight;
// Update text render target and redraw text.
textRenderTarget.DotsPerInch = new Size2F((float)newDpiX, (float)newDpiY);
textRenderTarget.Resize(new Size2((int)(newWidth * newDpiX / 96.0), (int)(newWidth * newDpiY / 96.0)));
DrawText(textRenderTarget, Title, XAxisLabel, YAxisLabel, textSize);
}
public void UpdateSize(SysWin.DpiScale dpi, double newWidth, double newHeight)
{
var newDpiX = dpi.PixelsPerInchX;
var newDpiY = dpi.PixelsPerInchY;
var oldHeight = _graphHeight;
var oldWidth = _graphWidth;
_graphHeight = (float)(newWidth * newDpiY / 96.0);
_graphWidth = (float)(newHeight * newDpiX / 96.0);
UpdateSizeAndPositions();
// Update bars.
for (var i = 0; i < _graphData.Length; i++)
{
var bar = _bars[i];
var xOffset = _shapeGraphOffsetX + _barSpacing + (_barWidth + _barSpacing) * i;
var height = bar.Height;
if (oldHeight != newHeight)
{
height = (float)GetAdjustedBarHeight(_maxBarValue, _graphData[i]);
}
bar.UpdateSize(_barWidth, height);
bar.Root.Offset = new SnVector3(xOffset, _shapeGraphContainerHeight, 0);
bar.OutlineRoot.Offset = new SnVector3(xOffset, _shapeGraphContainerHeight, 0);
}
// Scale text size.
_textSize = _textSize * _graphHeight / oldHeight;
// Update text render target and redraw text.
_textRenderTarget.DotsPerInch = new Size2F((float)newDpiX, (float)newDpiY);
_textRenderTarget.Resize(new Size2((int)(newWidth * newDpiX / 96.0), (int)(newWidth * newDpiY / 96.0)));
DrawText(_textRenderTarget, _graphTitle, _xAxisLabel, _yAxisLabel, _textSize);
}
/// <summary>
/// Constructs a DpiChangedEventArgs instance.
/// </summary>
internal DpiChangedEventArgs(DpiScale oldDpi, DpiScale newDpi, RoutedEvent routedEvent, object source) : base(routedEvent, source)
{
OldDpi = oldDpi;
NewDpi = newDpi;
}
