private void EditCanvas_MouseWheel(object sender, MouseWheelEventArgs e)
{
DesignerBaseCanvas it1 = sender as DesignerBaseCanvas;
if (it1 == null)
{
return;
}
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
IPagePropertyData page = this.DataContext as IPagePropertyData;
Rect selectWdgBounding = page.BoundingRect;
if (e.Delta > 0)
{
//ExternCanvas.
ScaleTransform scaletransform = ExternCanvasBorder.RenderTransform as ScaleTransform;
scaletransform.ScaleX = PageScaleEnumerator.GetValue(scaletransform.ScaleX, true);// Math.Min(1.7, scaletransform.ScaleX + 0.01);
double hOffset = (selectWdgBounding.Left + selectWdgBounding.Width / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualWidth / 2;
double vOffset = (selectWdgBounding.Top + selectWdgBounding.Height / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualHeight / 2;
DesignerScrollViewer.ScrollToHorizontalOffset(hOffset);
DesignerScrollViewer.ScrollToVerticalOffset(vOffset);
NLogger.Debug("e.Delta: " + e.Delta + " Scale: " + scaletransform.ScaleX + " view width: " + viewWidth + " view height: " + viewHeight + " horizontalOffset: " + hOffset + " verticalOffset:" + vOffset + " DesignerScrollViewer.ActualWidth:" + DesignerScrollViewer.ActualWidth);
}
else if (e.Delta < 0)
{
ScaleTransform scaletransform = ExternCanvasBorder.RenderTransform as ScaleTransform;
scaletransform.ScaleX = PageScaleEnumerator.GetValue(scaletransform.ScaleX, false); //Math.Max(0.3, scaletransform.ScaleX - 0.01);
//scaletransform.ScaleY = PageScaleEnumerator.GetValue(scaletransform.ScaleY, false); //Math.Max(0.3, scaletransform.ScaleY - 0.01);
double hOffset = (selectWdgBounding.Left + selectWdgBounding.Width / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualWidth / 2;
double vOffset = (selectWdgBounding.Top + selectWdgBounding.Height / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualHeight / 2;
DesignerScrollViewer.ScrollToHorizontalOffset(hOffset);
DesignerScrollViewer.ScrollToVerticalOffset(vOffset);
NLogger.Debug("e.Delta: " + e.Delta + " Scale: " + scaletransform.ScaleX + " view width: " + viewWidth + " view height: " + viewHeight + " horizontalOffset: " + hOffset + " verticalOffset:" + vOffset + " DesignerScrollViewer.ActualWidth:" + DesignerScrollViewer.ActualWidth);
}
e.Handled = true;
}
}
private void EditCanvas_MouseWheel(object sender, MouseWheelEventArgs e)
{
DesignerBaseCanvas it = sender as DesignerBaseCanvas;
if (it == null)
{
return;
}
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
IPagePropertyData page = this.DataContext as IPagePropertyData;
Rect selectWdgBounding = page.BoundingRect;
if (e.Delta > 0)
{
//ExternCanvas.
ScaleTransform scaletransform = ExternCanvasBorder.RenderTransform as ScaleTransform;
//scaletransform.ScaleX = Math.Min(1.7, scaletransform.ScaleX + 0.01);
//scaletransform.ScaleY = Math.Min(1.7, scaletransform.ScaleY + 0.01);
scaletransform.ScaleX = PageScaleEnumerator.GetValue(scaletransform.ScaleX, true);
DesignerScrollViewer.ScrollToHorizontalOffset((selectWdgBounding.Left + selectWdgBounding.Width / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualWidth / 2);
DesignerScrollViewer.ScrollToVerticalOffset((selectWdgBounding.Top + selectWdgBounding.Height / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualHeight / 2);
}
else if (e.Delta < 0)
{
ScaleTransform scaletransform = ExternCanvasBorder.RenderTransform as ScaleTransform;
//scaletransform.ScaleX = Math.Max(0.3, scaletransform.ScaleX - 0.01);
//scaletransform.ScaleY = Math.Max(0.3, scaletransform.ScaleY - 0.01);
scaletransform.ScaleX = PageScaleEnumerator.GetValue(scaletransform.ScaleX, false);
DesignerScrollViewer.ScrollToHorizontalOffset((selectWdgBounding.Left + selectWdgBounding.Width / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualWidth / 2);
DesignerScrollViewer.ScrollToVerticalOffset((selectWdgBounding.Top + selectWdgBounding.Height / 2) * scaletransform.ScaleX - DesignerScrollViewer.ActualHeight / 2);
}
e.Handled = true;
}
}