42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
// Copyright (c) 2020 Microsoft, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/ui/drag_util.h"
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#include <memory>
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#include "ui/gfx/skia_util.h"
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namespace electron {
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// Return a vector of non-draggable regions that fill a window of size
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// |width| by |height|, but leave gaps where the window should be draggable.
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std::vector<gfx::Rect> CalculateNonDraggableRegions(
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std::unique_ptr<SkRegion> draggable,
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int width,
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int height) {
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std::vector<gfx::Rect> result;
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SkRegion non_draggable;
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non_draggable.op({0, 0, width, height}, SkRegion::kUnion_Op);
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non_draggable.op(*draggable, SkRegion::kDifference_Op);
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for (SkRegion::Iterator it(non_draggable); !it.done(); it.next()) {
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result.push_back(gfx::SkIRectToRect(it.rect()));
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}
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return result;
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}
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// Convert draggable regions in raw format to SkRegion format.
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std::unique_ptr<SkRegion> DraggableRegionsToSkRegion(
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const std::vector<mojom::DraggableRegionPtr>& regions) {
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auto sk_region = std::make_unique<SkRegion>();
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for (const auto& region : regions) {
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sk_region->op(
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{region->bounds.x(), region->bounds.y(), region->bounds.right(),
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region->bounds.bottom()},
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region->draggable ? SkRegion::kUnion_Op : SkRegion::kDifference_Op);
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}
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return sk_region;
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}
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} // namespace electron
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