47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
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#include "Platform/Win32/EditorFloatingWindowPlacement.h"
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#include <algorithm>
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namespace XCEngine::UI::Editor::App {
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namespace {
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constexpr LONG kFloatingWindowTopOffset = 24;
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}
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RECT BuildEditorFloatingWindowRect(
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const POINT& screenPoint,
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LONG preferredWidth,
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LONG preferredHeight,
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LONG fallbackWidth,
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LONG fallbackHeight) {
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const LONG resolvedWidth = preferredWidth > 0 ? preferredWidth : fallbackWidth;
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const LONG resolvedHeight = preferredHeight > 0 ? preferredHeight : fallbackHeight;
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const LONG left = screenPoint.x - resolvedWidth / 2;
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const LONG top = screenPoint.y - kFloatingWindowTopOffset;
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RECT rect = {
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left,
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top,
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left + resolvedWidth,
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top + resolvedHeight
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};
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const HMONITOR monitor = MonitorFromPoint(screenPoint, MONITOR_DEFAULTTONEAREST);
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MONITORINFO monitorInfo = {};
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monitorInfo.cbSize = sizeof(monitorInfo);
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if (monitor != nullptr && GetMonitorInfoW(monitor, &monitorInfo)) {
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const RECT& workArea = monitorInfo.rcWork;
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const LONG width = rect.right - rect.left;
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const LONG height = rect.bottom - rect.top;
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rect.left = (std::max)(workArea.left, (std::min)(rect.left, workArea.right - width));
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rect.top = (std::max)(workArea.top, (std::min)(rect.top, workArea.bottom - height));
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rect.right = rect.left + width;
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rect.bottom = rect.top + height;
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}
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return rect;
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}
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} // namespace XCEngine::UI::Editor::App
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