void
nsTableCellFrame::DecorateForSelection(nsRenderingContext& aRenderingContext,
nsPoint aPt)
{
NS_ASSERTION(IsSelected(), "Should only be called for selected cells");
int16_t displaySelection;
nsPresContext* presContext = PresContext();
displaySelection = DisplaySelection(presContext);
if (displaySelection) {
RefPtr<nsFrameSelection> frameSelection =
presContext->PresShell()->FrameSelection();
if (frameSelection->GetTableCellSelection()) {
nscolor bordercolor;
if (displaySelection == nsISelectionController::SELECTION_DISABLED) {
bordercolor = NS_RGB(176,176,176);// disabled color
}
else {
bordercolor =
LookAndFeel::GetColor(LookAndFeel::eColorID_TextSelectBackground);
}
nscoord threePx = nsPresContext::CSSPixelsToAppUnits(3);
if ((mRect.width > threePx) && (mRect.height > threePx))
{
//compare bordercolor to ((nsStyleColor *)myColor)->mBackgroundColor)
bordercolor = EnsureDifferentColors(bordercolor,
StyleBackground()->mBackgroundColor);
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
Point devPixelOffset = NSPointToPoint(aPt, appUnitsPerDevPixel);
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
AutoRestoreTransform autoRestoreTransform(drawTarget);
drawTarget->SetTransform(
drawTarget->GetTransform().PreTranslate(devPixelOffset));
ColorPattern color(ToDeviceColor(bordercolor));
nscoord onePixel = nsPresContext::CSSPixelsToAppUnits(1);
StrokeLineWithSnapping(nsPoint(onePixel, 0), nsPoint(mRect.width, 0),
appUnitsPerDevPixel, *drawTarget, color);
StrokeLineWithSnapping(nsPoint(0, onePixel), nsPoint(0, mRect.height),
appUnitsPerDevPixel, *drawTarget, color);
StrokeLineWithSnapping(nsPoint(onePixel, mRect.height),
nsPoint(mRect.width, mRect.height),
appUnitsPerDevPixel, *drawTarget, color);
StrokeLineWithSnapping(nsPoint(mRect.width, onePixel),
nsPoint(mRect.width, mRect.height),
appUnitsPerDevPixel, *drawTarget, color);
//middle
nsRect r(onePixel, onePixel,
mRect.width - onePixel, mRect.height - onePixel);
Rect devPixelRect =
NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
drawTarget->StrokeRect(devPixelRect, color);
//shading
StrokeLineWithSnapping(nsPoint(2*onePixel, mRect.height-2*onePixel),
nsPoint(mRect.width-onePixel, mRect.height- (2*onePixel)),
appUnitsPerDevPixel, *drawTarget, color);
StrokeLineWithSnapping(nsPoint(mRect.width - (2*onePixel), 2*onePixel),
nsPoint(mRect.width - (2*onePixel), mRect.height-onePixel),
appUnitsPerDevPixel, *drawTarget, color);
}
}
}
}
