gecko-dev/widget/ScrollbarDrawingWin.h

53 строки
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_widget_ScrollbarDrawingWin_h
#define mozilla_widget_ScrollbarDrawingWin_h
#include "nsITheme.h"
#include "nsNativeTheme.h"
#include "ScrollbarDrawing.h"
namespace mozilla::widget {
class ScrollbarDrawingWin final : public ScrollbarDrawing {
public:
ScrollbarDrawingWin() = default;
virtual ~ScrollbarDrawingWin() = default;
LayoutDeviceIntSize GetMinimumWidgetSize(nsPresContext*,
StyleAppearance aAppearance,
nsIFrame* aFrame) override;
Maybe<nsITheme::Transparency> GetScrollbarPartTransparency(
nsIFrame* aFrame, StyleAppearance aAppearance) override;
static ComputedStyle* GetCustomScrollbarStyle(nsIFrame* aFrame,
bool* aDarkScrollbar = nullptr);
template <typename PaintBackendData>
bool DoPaintScrollbarThumb(PaintBackendData&, const LayoutDeviceRect&,
bool aHorizontal, nsIFrame*, const ComputedStyle&,
const EventStates& aElementState,
const EventStates& aDocumentState, const Colors&,
const DPIRatio&);
bool PaintScrollbarThumb(DrawTarget&, const LayoutDeviceRect&,
bool aHorizontal, nsIFrame*, const ComputedStyle&,
const EventStates& aElementState,
const EventStates& aDocumentState, const Colors&,
const DPIRatio&) override;
bool PaintScrollbarThumb(WebRenderBackendData&, const LayoutDeviceRect&,
bool aHorizontal, nsIFrame*, const ComputedStyle&,
const EventStates& aElementState,
const EventStates& aDocumentState, const Colors&,
const DPIRatio&) override;
void RecomputeScrollbarParams() override;
};
} // namespace mozilla::widget
#endif