void ScrollbarThemeChromiumWin::paintThumb(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect)
{
bool horz = scrollbar->orientation() == HorizontalScrollbar;
// Draw the thumb (the box you drag in the scroll bar to scroll).
PlatformSupport::paintScrollbarThumb(
gc,
horz ? SBP_THUMBBTNHORZ : SBP_THUMBBTNVERT,
getThemeState(scrollbar, ThumbPart),
getClassicThemeState(scrollbar, ThumbPart),
rect);
// Draw the gripper (the three little lines on the thumb).
PlatformSupport::paintScrollbarThumb(
gc,
horz ? SBP_GRIPPERHORZ : SBP_GRIPPERVERT,
getThemeState(scrollbar, ThumbPart),
getClassicThemeState(scrollbar, ThumbPart),
rect);
}
void ScrollbarThemeWin::paintTrackPiece(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect, ScrollbarPart partType)
{
bool horz = scrollbar->orientation() == HorizontalScrollbar;
int partId;
if (partType == BackTrackPart)
partId = horz ? SBP_UPPERTRACKHORZ : SBP_UPPERTRACKVERT;
else
partId = horz ? SBP_LOWERTRACKHORZ : SBP_LOWERTRACKVERT;
IntRect alignRect = trackRect(scrollbar, false);
WebKit::WebCanvas* canvas = gc->canvas();
// Draw the track area before/after the thumb on the scroll bar.
WebKit::Platform::current()->themeEngine()->paintScrollbarTrack(canvas, partId, getThemeState(scrollbar, partType), getClassicThemeState(scrollbar, partType), WebKit::WebRect(rect), WebKit::WebRect(alignRect));
}
void ScrollbarThemeChromiumWin::paintTrackPiece(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect, ScrollbarPart partType)
{
bool horz = scrollbar->orientation() == HorizontalScrollbar;
int partId;
if (partType == BackTrackPart)
partId = horz ? SBP_UPPERTRACKHORZ : SBP_UPPERTRACKVERT;
else
partId = horz ? SBP_LOWERTRACKHORZ : SBP_LOWERTRACKVERT;
IntRect alignRect = trackRect(scrollbar, false);
// Draw the track area before/after the thumb on the scroll bar.
PlatformSupport::paintScrollbarTrack(
gc,
partId,
getThemeState(scrollbar, partType),
getClassicThemeState(scrollbar, partType),
rect,
alignRect);
}
void ScrollbarThemeChromiumWin::paintThumb(GraphicsContext* gc, ScrollbarThemeClient* scrollbar, const IntRect& rect)
{
bool horz = scrollbar->orientation() == HorizontalScrollbar;
WebKit::WebCanvas* canvas = gc->platformContext()->canvas();
// Draw the thumb (the box you drag in the scroll bar to scroll).
WebKit::Platform::current()->themeEngine()->paintScrollbarThumb(canvas, horz ? SBP_THUMBBTNHORZ : SBP_THUMBBTNVERT, getThemeState(scrollbar, ThumbPart), getClassicThemeState(scrollbar, ThumbPart), WebKit::WebRect(rect));
// Draw the gripper (the three little lines on the thumb).
WebKit::Platform::current()->themeEngine()->paintScrollbarThumb(canvas, horz ? SBP_GRIPPERHORZ : SBP_GRIPPERVERT, getThemeState(scrollbar, ThumbPart), getClassicThemeState(scrollbar, ThumbPart), WebKit::WebRect(rect));
}
// paint in the coordinate space of our parent's content area
void PlatformScrollbar::paint(GraphicsContext* gc, const IntRect& damageRect)
{
#if PLATFORM(WIN_OS)
if (gc->paintingDisabled())
return;
// Don't paint anything if the scrollbar doesn't intersect the damage rect.
if (!frameGeometry().intersects(damageRect))
return;
gc->save();
gc->translate(x(), y());
layout();
HDC hdc = gc->platformContext()->canvas()->beginPlatformPaint();
const bool horz = orientation() == HorizontalScrollbar;
const PlatformContextSkia* const skia = gc->platformContext();
const gfx::NativeTheme* const nativeTheme = skia->nativeTheme();
gfx::PlatformCanvasWin* const canvas = skia->canvas();
// Draw the up/left arrow of the scroll bar.
RECT rect = gfx::SkIRectToRECT(m_segmentRects[Arrow1]);
nativeTheme->PaintScrollbarArrow(hdc, getThemeArrowState(Arrow1),
(horz ? DFCS_SCROLLLEFT : DFCS_SCROLLUP) |
getClassicThemeState(Arrow1),
&rect);
if (m_segmentRects[Track].x() != -1) {
// The scroll bar is too small to draw the thumb. Just draw a
// single track between the arrows.
rect = gfx::SkIRectToRECT(m_segmentRects[Track]);
nativeTheme->PaintScrollbarTrack(hdc,
horz ? SBP_UPPERTRACKHORZ :
SBP_UPPERTRACKVERT,
getThemeState(Track),
getClassicThemeState(Track),
&rect, &rect, canvas);
DrawTickmarks(gc);
} else {
// Draw the track area before the thumb on the scroll bar.
rect = gfx::SkIRectToRECT(m_segmentRects[BeforeThumb]);
nativeTheme->PaintScrollbarTrack(hdc,
horz ? SBP_UPPERTRACKHORZ :
SBP_UPPERTRACKVERT,
getThemeState(BeforeThumb),
getClassicThemeState(BeforeThumb),
&rect, &rect, canvas);
// Draw the track area after the thumb on the scroll bar.
rect = gfx::SkIRectToRECT(m_segmentRects[BeforeThumb]);
RECT rect_after = gfx::SkIRectToRECT(m_segmentRects[AfterThumb]);
nativeTheme->PaintScrollbarTrack(hdc,
horz ? SBP_LOWERTRACKHORZ :
SBP_LOWERTRACKVERT,
getThemeState(AfterThumb),
getClassicThemeState(AfterThumb),
&rect_after,
&rect,
canvas);
// Draw the tick-marks on the scroll bar, if any tick-marks
// exist. Note: The thumb will be drawn on top of the tick-marks,
// which is desired.
DrawTickmarks(gc);
// Draw the thumb (the box you drag in the scroll bar to scroll).
rect = gfx::SkIRectToRECT(m_segmentRects[Thumb]);
nativeTheme->PaintScrollbarThumb(hdc,
horz ? SBP_THUMBBTNHORZ :
SBP_THUMBBTNVERT,
getThemeState(Thumb),
getClassicThemeState(Thumb),
&rect);
// Draw the gripper (the three little lines on the thumb).
rect = gfx::SkIRectToRECT(m_segmentRects[Thumb]);
nativeTheme->PaintScrollbarThumb(hdc,
horz ? SBP_GRIPPERHORZ :
SBP_GRIPPERVERT,
getThemeState(Thumb),
getClassicThemeState(Thumb),
&rect);
}
// Draw the down/right arrow of the scroll bar.
rect = gfx::SkIRectToRECT(m_segmentRects[Arrow2]);
nativeTheme->PaintScrollbarArrow(hdc, getThemeArrowState(Arrow2),
(horz ?
DFCS_SCROLLRIGHT : DFCS_SCROLLDOWN) |
getClassicThemeState(Arrow2),
&rect);
gc->platformContext()->canvas()->endPlatformPaint();
gc->restore();
#endif
}
