/// <summary>
/// Raises the Paint event.
/// </summary>
/// <param name="e">A PaintEventArgs that contains the event data.</param>
protected override void OnPaint(PaintEventArgs args)
{
// Call the base class's method so that registered delegates receive the event.
base.OnPaint(args);
// Fix bug 602576: The 'Remove Effects' button is truncated in right-to-left builds
if (BidiHelper.IsRightToLeft)
args.Graphics.ResetClip();
// Take int account vertical padding
Rectangle rect = new Rectangle(VirtualClientRectangle.X, VirtualClientRectangle.Y + VerticalPadding, VirtualClientRectangle.Width, VirtualClientRectangle.Height);
BidiGraphics g = new BidiGraphics(args.Graphics, rect);
// No painting required if there is no parent or no command.
if (Parent == null || Command == null)
return;
// Determine the draw state of the button.
DrawState drawState;
if (!Command.Enabled)
drawState = DrawState.Disabled;
else if (Command.Latched || (ButtonPushed && MouseInside) || (ContextMenuUserInterface && ContextMenuShowing))
drawState = DrawState.Pushed;
else if (MouseInside || (DropDownContextMenuUserInterface && ContextMenuShowing))
drawState = DrawState.Selected;
else
drawState = DrawState.Enabled;
// Draw the button.
if (Command.CommandBarButtonStyle == CommandBarButtonStyle.System)
{
Size imageSize = ImageSize;
// is this a large button?
bool isLargeButton = false;
if (imageSize.Height > SystemButtonHelper.SMALL_BUTTON_IMAGE_SIZE)
isLargeButton = true;
if (Command is ICustomButtonBitmapPaint)
{
switch (drawState)
{
case DrawState.Selected:
SystemButtonHelper.DrawSystemButtonFace(g, DropDownContextMenuUserInterface, contextMenuShowing, VirtualClientRectangle, isLargeButton);
break;
case DrawState.Pushed:
SystemButtonHelper.DrawSystemButtonFacePushed(g, DropDownContextMenuUserInterface, VirtualClientRectangle, isLargeButton);
break;
}
((ICustomButtonBitmapPaint)Command).Paint(g, rImage, drawState);
}
else
{
Bitmap buttonBitmap = null;
switch (drawState)
{
case DrawState.Disabled:
buttonBitmap = Command.CommandBarButtonBitmapDisabled;
break;
case DrawState.Enabled:
buttonBitmap = Command.CommandBarButtonBitmapEnabled;
break;
case DrawState.Selected:
SystemButtonHelper.DrawSystemButtonFace(g, DropDownContextMenuUserInterface, contextMenuShowing, VirtualClientRectangle, isLargeButton);
buttonBitmap = Command.CommandBarButtonBitmapSelected;
break;
case DrawState.Pushed:
SystemButtonHelper.DrawSystemButtonFacePushed(g, DropDownContextMenuUserInterface, VirtualClientRectangle, isLargeButton);
buttonBitmap = Command.CommandBarButtonBitmapSelected;
break;
}
// Draw the button bitmap.
if (buttonBitmap != null && !Command.SuppressCommandBarBitmap)
{
if (!SystemInformation.HighContrast)
g.DrawImage(false, buttonBitmap, rImage);
else
{
//apply a high contrast image matrix
ImageAttributes ia = new ImageAttributes();
ia.SetColorMatrix(HighContrastColorMatrix);
ColorMap cm = new ColorMap();
cm.OldColor = Color.White;
cm.NewColor = SystemColors.Control;
ia.SetRemapTable(new ColorMap[] { cm });
g.DrawImage(false, buttonBitmap, rImage, 0, 0, buttonBitmap.Width, buttonBitmap.Height, GraphicsUnit.Pixel, ia);
}
}
}
// Draw the text.
if (Command.CommandBarButtonText != null && Command.CommandBarButtonText.Length != 0)
{
Color textColor;
if (drawState == DrawState.Disabled)
textColor = commandBarLightweightControl.DisabledTextColor;
else
textColor = commandBarLightweightControl.TextColor;
g.DrawText(
Command.CommandBarButtonText,
ApplicationManager.ApplicationStyle.NormalApplicationFont,
rText,
textColor,
TextFormatFlags.PreserveGraphicsTranslateTransform | TextFormatFlags.NoPadding | TextFormatFlags.NoClipping);
}
// Draw the context menu arrow, if needed.
if (DropDownContextMenuUserInterface || ContextMenuUserInterface)
{
Bitmap contextMenuArrowBitmapToDraw;
if (drawState == DrawState.Disabled)
contextMenuArrowBitmapToDraw = contextMenuArrowBitmapDisabled;
else
contextMenuArrowBitmapToDraw = contextMenuArrowBitmap;
int height = isLargeButton ? SystemButtonHelper.LARGE_BUTTON_TOTAL_SIZE : VirtualHeight;
g.DrawImage(false, contextMenuArrowBitmapToDraw, rArrow);
}
}
else if (Command.CommandBarButtonStyle == CommandBarButtonStyle.Bitmap)
{
switch (drawState)
{
case DrawState.Disabled:
g.DrawImage(true, Command.CommandBarButtonBitmapDisabled, HorizontalMargin, TOP_MARGIN);
break;
case DrawState.Enabled:
g.DrawImage(true, Command.CommandBarButtonBitmapEnabled, HorizontalMargin, TOP_MARGIN);
break;
case DrawState.Selected:
g.DrawImage(true, Command.CommandBarButtonBitmapSelected, HorizontalMargin, TOP_MARGIN);
break;
case DrawState.Pushed:
g.DrawImage(true, Command.CommandBarButtonBitmapPushed, HorizontalMargin, TOP_MARGIN);
break;
}
}
else if (Command.CommandBarButtonStyle == CommandBarButtonStyle.Provider)
{
DrawProviderButtonFace(g, drawState);
DrawProviderButton(g, drawState);
}
if (Focused)
g.DrawFocusRectangle(new Rectangle(0, 0, VirtualWidth, VirtualHeight), Parent.ForeColor, Parent.BackColor);
}
