Fix #113511: Win32 Warping Needs Screen Edge Margin #113565
@ -1122,38 +1122,20 @@ GHOST_EventCursor *GHOST_SystemWin32::processCursorEvent(GHOST_WindowWin32 *wind
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/* Warp within bounds. */
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{
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GHOST_Rect bounds;
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int32_t bounds_margin = 0;
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GHOST_TAxisFlag bounds_axis = GHOST_kAxisNone;
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if (window->getCursorGrabMode() == GHOST_kGrabHide) {
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/* Use custom grab bounds if available, window bounds if not. */
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if (window->getCursorGrabBounds(bounds) == GHOST_kFailure) {
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/* Use custom grab bounds if available, window bounds if not. */
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window->getClientBounds(bounds);
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}
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/* WARNING(@ideasman42): The current warping logic fails to warp on every event,
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* so the box needs to small enough not to let the cursor escape the window but large
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* enough that the cursor isn't being warped every time.
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* If this was not the case it would be less trouble to simply warp the cursor to the
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* center of the screen on every motion, see: D16558 (alternative fix for #102346). */
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const int32_t subregion_div = 4; /* One quarter of the region. */
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const int32_t size[2] = {bounds.getWidth(), bounds.getHeight()};
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const int32_t center[2] = {(bounds.m_l + bounds.m_r) / 2, (bounds.m_t + bounds.m_b) / 2};
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/* Shrink the box to prevent the cursor escaping. */
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bounds.m_l = center[0] - (size[0] / (subregion_div * 2));
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bounds.m_r = center[0] + (size[0] / (subregion_div * 2));
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bounds.m_t = center[1] - (size[1] / (subregion_div * 2));
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bounds.m_b = center[1] + (size[1] / (subregion_div * 2));
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}
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bounds_axis = GHOST_TAxisFlag(GHOST_kAxisX | GHOST_kAxisY);
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}
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else {
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/* Fallback to window bounds. */
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if (window->getCursorGrabBounds(bounds) == GHOST_kFailure) {
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window->getClientBounds(bounds);
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}
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bounds_margin = 2;
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bounds_axis = window->getCursorGrabAxis();
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}
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* enough that the cursor isn't being warped every time. If this was not the case it
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* would be less trouble to simply warp the cursor to the center of the screen on
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* every motion, see: D16558 (alternative fix for #102346). */
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/* Rather than adjust the bounds, use a margin based on the bounds width. */
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int32_t bounds_margin = bounds.getWidth() / 10;
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GHOST_TAxisFlag bounds_axis = window->getCursorGrabAxis();
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/* Could also clamp to screen bounds wrap with a window outside the view will
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* fail at the moment. Use inset in case the window is at screen bounds. */
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