40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
// Copyright (c) 2022 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include "libcef/browser/screen_util.h"
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#include <algorithm>
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namespace {
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constexpr int kMinWidth = 0;
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constexpr int kMinHeight = 0;
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// Makes sure that line segment lies entirely between min and max.
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int clamp_segment_start(int start, int len, int min, int max) {
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start = std::clamp(start, min, max);
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const int end = start + len;
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const int excess = end - max;
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if (excess > 0)
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start = start - excess;
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return start;
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}
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} // namespace
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CefRect MakeVisibleOnScreenRect(const CefRect& rect, const CefRect& screen) {
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const int width = std::clamp(rect.width, kMinWidth, screen.width);
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const int height = std::clamp(rect.height, kMinHeight, screen.height);
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const int right_border = screen.x + screen.width;
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const int x = clamp_segment_start(rect.x, width, screen.x, right_border);
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const int bottom_border = screen.y + screen.height;
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const int y = clamp_segment_start(rect.y, height, screen.y, bottom_border);
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return CefRect(x, y, width, height);
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}
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