ThemeDrawing.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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_ThemeDrawing_h

#define mozilla_widget_ThemeDrawing_h

#include "mozilla/layers/IpcResourceUpdateQueue.h"

#include "mozilla/layers/RenderRootStateManager.h"

#include "mozilla/layers/StackingContextHelper.h"

#include "RetainedDisplayListBuilder.h"

namespace mozilla::widget {

struct WebRenderBackendData {

  wr::DisplayListBuilder& mBuilder;

  wr::IpcResourceUpdateQueue& mResources;

  const layers::StackingContextHelper& mSc;

  layers::RenderRootStateManager* mManager;

};

class ThemeDrawing {

 protected:

  using DrawTarget = gfx::DrawTarget;

  using sRGBColor = gfx::sRGBColor;

  using DPIRatio = CSSToLayoutDeviceScale;

 public:

  virtual ~ThemeDrawing() = 0;

  static void FillRect(DrawTarget&, const LayoutDeviceRect&, const sRGBColor&);

  static void FillRect(WebRenderBackendData&, const LayoutDeviceRect&,

                       const sRGBColor&);

  // Returns the right scale for points in a aSize x aSize sized box, centered

  // at 0x0 to fill aRect in the smaller dimension.

  static float ScaleToFillRect(const LayoutDeviceRect& aRect,

                               const float& aSize) {

    return std::min(aRect.width, aRect.height) / aSize;

  static LayoutDeviceIntCoord SnapBorderWidth(const CSSCoord& aCssWidth,

                                              const DPIRatio& aDpiRatio);

  static void PaintArrow(DrawTarget&, const LayoutDeviceRect&,

                         const float aArrowPolygonX[],

                         const float aArrowPolygonY[],

                         const float aArrowPolygonSize,

                         const int32_t aArrowNumPoints,

                         const sRGBColor aFillColor);

  static void PaintRoundedRectWithRadius(

      DrawTarget&, const LayoutDeviceRect& aRect,

      const LayoutDeviceRect& aClipRect, const sRGBColor& aBackgroundColor,

      const sRGBColor& aBorderColor, const CSSCoord& aBorderWidth,

      const CSSCoord& aRadius, const DPIRatio&);

  static void PaintRoundedRectWithRadius(

      WebRenderBackendData&, const LayoutDeviceRect& aRect,

      const LayoutDeviceRect& aClipRect, const sRGBColor& aBackgroundColor,

      const sRGBColor& aBorderColor, const CSSCoord& aBorderWidth,

      const CSSCoord& aRadius, const DPIRatio&);

  template <typename PaintBackendData>

  static void PaintRoundedRectWithRadius(PaintBackendData& aData,

                                         const LayoutDeviceRect& aRect,

                                         const sRGBColor& aBackgroundColor,

                                         const sRGBColor& aBorderColor,

                                         const CSSCoord& aBorderWidth,

                                         const CSSCoord& aRadius,

                                         const DPIRatio& aDpiRatio) {

    PaintRoundedRectWithRadius(aData, aRect, aRect, aBackgroundColor,

                               aBorderColor, aBorderWidth, aRadius, aDpiRatio);

};

}  // namespace mozilla::widget

#endif