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Viewports: extracted DestroyViewport() out of UpdateViewportsNewFrame() function.

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ocornut 2021-09-11 14:06:43 +02:00
parent 92a39f78b9
commit 5d95e7eef9
1 changed files with 27 additions and 17 deletions
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44
imgui.cpp
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@ -956,6 +956,7 @@ static void EndFrameDrawDimmedBackgrounds();
// Viewports // Viewports
const ImGuiID IMGUI_VIEWPORT_DEFAULT_ID = 0x11111111; // Using an arbitrary constant instead of e.g. ImHashStr("ViewportDefault", 0); so it's easier to spot in the debugger. The exact value doesn't matter. const ImGuiID IMGUI_VIEWPORT_DEFAULT_ID = 0x11111111; // Using an arbitrary constant instead of e.g. ImHashStr("ViewportDefault", 0); so it's easier to spot in the debugger. The exact value doesn't matter.
static ImGuiViewportP* AddUpdateViewport(ImGuiWindow* window, ImGuiID id, const ImVec2& platform_pos, const ImVec2& size, ImGuiViewportFlags flags); static ImGuiViewportP* AddUpdateViewport(ImGuiWindow* window, ImGuiID id, const ImVec2& platform_pos, const ImVec2& size, ImGuiViewportFlags flags);
static void DestroyViewport(ImGuiViewportP* viewport);
static void UpdateViewportsNewFrame(); static void UpdateViewportsNewFrame();
static void UpdateViewportsEndFrame(); static void UpdateViewportsEndFrame();
static void WindowSelectViewport(ImGuiWindow* window); static void WindowSelectViewport(ImGuiWindow* window);
@ -11747,22 +11748,7 @@ static void ImGui::UpdateViewportsNewFrame()
// Erase unused viewports // Erase unused viewports
if (n > 0 && viewport->LastFrameActive < g.FrameCount - 2) if (n > 0 && viewport->LastFrameActive < g.FrameCount - 2)
{ {
// Clear references to this viewport in windows (window->ViewportId becomes the master data) DestroyViewport(viewport);
for (int window_n = 0; window_n < g.Windows.Size; window_n++)
if (g.Windows[window_n]->Viewport == viewport)
{
g.Windows[window_n]->Viewport = NULL;
g.Windows[window_n]->ViewportOwned = false;
}
if (viewport == g.MouseLastHoveredViewport)
g.MouseLastHoveredViewport = NULL;
g.Viewports.erase(g.Viewports.Data + n);
// Destroy
IMGUI_DEBUG_LOG_VIEWPORT("Delete Viewport %08X (%s)\n", viewport->ID, viewport->Window ? viewport->Window->Name : "n/a");
DestroyPlatformWindow(viewport); // In most circumstances the platform window will already be destroyed here.
IM_ASSERT(g.PlatformIO.Viewports.contains(viewport) == false);
IM_DELETE(viewport);
n--; n--;
continue; continue;
} }
@ -11794,7 +11780,7 @@ static void ImGui::UpdateViewportsNewFrame()
// Reset alpha every frame. Users of transparency (docking) needs to request a lower alpha back. // Reset alpha every frame. Users of transparency (docking) needs to request a lower alpha back.
viewport->Alpha = 1.0f; viewport->Alpha = 1.0f;
// Translate imgui windows when a Host Viewport has been moved // Translate Dear ImGui windows when a Host Viewport has been moved
// (This additionally keeps windows at the same place when ImGuiConfigFlags_ViewportsEnable is toggled!) // (This additionally keeps windows at the same place when ImGuiConfigFlags_ViewportsEnable is toggled!)
const ImVec2 viewport_delta_pos = viewport->Pos - viewport->LastPos; const ImVec2 viewport_delta_pos = viewport->Pos - viewport->LastPos;
if ((viewport->Flags & ImGuiViewportFlags_CanHostOtherWindows) && (viewport_delta_pos.x != 0.0f || viewport_delta_pos.y != 0.0f)) if ((viewport->Flags & ImGuiViewportFlags_CanHostOtherWindows) && (viewport_delta_pos.x != 0.0f || viewport_delta_pos.y != 0.0f))
@ -11974,6 +11960,30 @@ ImGuiViewportP* ImGui::AddUpdateViewport(ImGuiWindow* window, ImGuiID id, const
return viewport; return viewport;
} }
static void ImGui::DestroyViewport(ImGuiViewportP* viewport)
{
// Clear references to this viewport in windows (window->ViewportId becomes the master data)
ImGuiContext& g = *GImGui;
for (int window_n = 0; window_n < g.Windows.Size; window_n++)
{
ImGuiWindow* window = g.Windows[window_n];
if (window->Viewport != viewport)
continue;
window->Viewport = NULL;
window->ViewportOwned = false;
}
if (viewport == g.MouseLastHoveredViewport)
g.MouseLastHoveredViewport = NULL;
// Destroy
IMGUI_DEBUG_LOG_VIEWPORT("Delete Viewport %08X (%s)\n", viewport->ID, viewport->Window ? viewport->Window->Name : "n/a");
DestroyPlatformWindow(viewport); // In most circumstances the platform window will already be destroyed here.
IM_ASSERT(g.PlatformIO.Viewports.contains(viewport) == false);
IM_ASSERT(g.Viewports[viewport->Idx] == viewport);
g.Viewports.erase(g.Viewports.Data + viewport->Idx);
IM_DELETE(viewport);
}
// FIXME-VIEWPORT: This is all super messy and ought to be clarified or rewritten. // FIXME-VIEWPORT: This is all super messy and ought to be clarified or rewritten.
static void ImGui::WindowSelectViewport(ImGuiWindow* window) static void ImGui::WindowSelectViewport(ImGuiWindow* window)
{ {