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Fix monitor dpi info not being copied to main viewport when multi-viewports are not enabled. (#2621, #1676) + Tweaks, short path in FindPlatformMonitorForRect().

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This commit is contained in:
omar 2019-06-17 11:19:34 +02:00
parent b27fd87177
commit ca43436cd3
1 changed files with 17 additions and 8 deletions
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25
imgui.cpp
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@ -10558,17 +10558,20 @@ static ImGuiViewportP* FindViewportHoveredFromPlatformWindowStack(const ImVec2 m
return best_candidate;
}
// Update viewports and monitor infos
// Note that this is runing even if 'ImGuiConfigFlags_ViewportsEnable' is not set, in order to clear unused viewports (if any) and update monitor info.
static void ImGui::UpdateViewportsNewFrame()
{
ImGuiContext& g = *GImGui;
IM_ASSERT(g.PlatformIO.Viewports.Size <= g.Viewports.Size);
// Update Minimized status (we need it first in order to decide if we'll apply Pos/Size of the main viewport)
for (int n = 0; n < g.Viewports.Size; n++)
if ((g.ConfigFlagsForFrame & ImGuiConfigFlags_ViewportsEnable))
{
ImGuiViewportP* viewport = g.Viewports[n];
const bool platform_funcs_available = viewport->PlatformWindowCreated;
if ((g.ConfigFlagsForFrame & ImGuiConfigFlags_ViewportsEnable))
for (int n = 0; n < g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
const bool platform_funcs_available = viewport->PlatformWindowCreated;
if (g.PlatformIO.Platform_GetWindowMinimized && platform_funcs_available)
{
bool minimized = g.PlatformIO.Platform_GetWindowMinimized(viewport);
@ -10577,6 +10580,7 @@ static void ImGui::UpdateViewportsNewFrame()
else
viewport->Flags &= ~ImGuiViewportFlags_Minimized;
}
}
}
// Create/update main viewport with current platform position and size
@ -10593,10 +10597,10 @@ static void ImGui::UpdateViewportsNewFrame()
g.MouseViewport = NULL;
for (int n = 0; n < g.Viewports.Size; n++)
{
// Erase unused viewports
ImGuiViewportP* viewport = g.Viewports[n];
viewport->Idx = n;
// Erase unused viewports
if (n > 0 && viewport->LastFrameActive < g.FrameCount - 2)
{
// Clear references to this viewport in windows (window->ViewportId becomes the master data)
@ -10631,10 +10635,11 @@ static void ImGui::UpdateViewportsNewFrame()
if (viewport->PlatformRequestResize)
viewport->Size = viewport->LastPlatformSize = g.PlatformIO.Platform_GetWindowSize(viewport);
}
UpdateViewportPlatformMonitor(viewport);
}
// Update/copy monitor info
UpdateViewportPlatformMonitor(viewport);
// Reset alpha every frame. Users of transparency (docking) needs to request a lower alpha back.
viewport->Alpha = 1.0f;
@ -11102,11 +11107,15 @@ static int ImGui::FindPlatformMonitorForPos(const ImVec2& pos)
// Search for the monitor with the largest intersection area with the given rectangle
// We generally try to avoid searching loops but the monitor count should be very small here
// FIXME-OPT: We could test the last monitor used for that viewport first..
// FIXME-OPT: We could test the last monitor used for that viewport first, and early
static int ImGui::FindPlatformMonitorForRect(const ImRect& rect)
{
ImGuiContext& g = *GImGui;
const int monitor_count = g.PlatformIO.Monitors.Size;
if (monitor_count <= 1)
return monitor_count - 1;
// Use a minimum threshold of 1.0f so a zero-sized rect won't false positive, and will still find the correct monitor given its position.
// This is necessary for tooltips which always resize down to zero at first.
const float surface_threshold = ImMax(rect.GetWidth() * rect.GetHeight() * 0.5f, 1.0f);