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Viewport: Exposing SetNextWindowViewport(). Used in demo and old/obsolete SetNextWindowPosCenter() (which is an interesting case). Fixed back-end likely crash calling GetFocus() after viewport destruction. Fixed metrics crash.

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This commit is contained in:
omar
2018-04-26 16:36:39 +02:00
parent cd51f37fc0
commit c47d34cf70
4 changed files with 19 additions and 6 deletions
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12
imgui.cpp
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@@ -3594,6 +3594,7 @@ void ImGui::UpdatePlatformWindows()
g.PlatformIO.Renderer_DestroyWindow(viewport);
if (g.PlatformIO.Platform_DestroyWindow)
g.PlatformIO.Platform_DestroyWindow(viewport);
viewport->CreatedPlatformWindow = false;
IM_ASSERT(viewport->RendererUserData == NULL);
IM_ASSERT(viewport->PlatformUserData == NULL && viewport->PlatformHandle == NULL);
}
@@ -7916,6 +7917,15 @@ void ImGui::SetNextWindowPos(const ImVec2& pos, ImGuiCond cond, const ImVec2& pi
g.NextWindowData.PosCond = cond ? cond : ImGuiCond_Always;
}
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
void ImGui::SetNextWindowPosCenter(ImGuiCond cond)
{
ImGuiViewport* viewport = ImGui::GetMainViewport();
SetNextWindowPos(viewport->Pos + viewport->Size * 0.5f, cond, ImVec2(0.5f, 0.5f));
SetNextWindowViewport(viewport->ID);
}
#endif
void ImGui::SetNextWindowSize(const ImVec2& size, ImGuiCond cond)
{
ImGuiContext& g = *GImGui;
@@ -14260,7 +14270,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
else
ImGui::BulletText("NavRectRel[0]: <None>");
ImGui::BulletText("Viewport: %d, ViewportId: 0x%08X, ViewportPos: (%.1f,%.1f)", window->Viewport ? window->Viewport->Idx : -1, window->ViewportId, window->ViewportPos.x, window->ViewportPos.y);
ImGui::BulletText("ViewportMonitor: %d", window->Viewport->PlatformMonitor);
ImGui::BulletText("ViewportMonitor: %d", window->Viewport ? window->Viewport->PlatformMonitor : -1);
if (window->RootWindow != window) NodeWindow(window->RootWindow, "RootWindow");
if (window->ParentWindow != NULL) NodeWindow(window->ParentWindow, "ParentWindow");
if (window->DC.ChildWindows.Size > 0) NodeWindows(window->DC.ChildWindows, "ChildWindows");

3
imgui.h
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@@ -206,6 +206,7 @@ namespace ImGui
IMGUI_API void SetNextWindowCollapsed(bool collapsed, ImGuiCond cond = 0); // set next window collapsed state. call before Begin()
IMGUI_API void SetNextWindowFocus(); // set next window to be focused / front-most. call before Begin()
IMGUI_API void SetNextWindowBgAlpha(float alpha); // set next window background color alpha. helper to easily modify ImGuiCol_WindowBg/ChildBg/PopupBg.
IMGUI_API void SetNextWindowViewport(ImGuiID viewport_id); // set next window viewport
IMGUI_API void SetWindowPos(const ImVec2& pos, ImGuiCond cond = 0); // (not recommended) set current window position - call within Begin()/End(). prefer using SetNextWindowPos(), as this may incur tearing and side-effects.
IMGUI_API void SetWindowSize(const ImVec2& size, ImGuiCond cond = 0); // (not recommended) set current window size - call within Begin()/End(). set to ImVec2(0,0) to force an auto-fit. prefer using SetNextWindowSize(), as this may incur tearing and minor side-effects.
IMGUI_API void SetWindowCollapsed(bool collapsed, ImGuiCond cond = 0); // (not recommended) set current window collapsed state. prefer using SetNextWindowCollapsed().
@@ -1148,7 +1149,7 @@ namespace ImGui
bool Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // Use SetNextWindowSize(size, ImGuiCond_FirstUseEver) + SetNextWindowBgAlpha() instead.
static inline bool IsRootWindowOrAnyChildHovered() { return IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows); }
static inline void AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); }
static inline void SetNextWindowPosCenter(ImGuiCond c=0) { ImGuiIO& io = GetIO(); SetNextWindowPos(ImVec2(io.DisplaySize.x * 0.5f, io.DisplaySize.y * 0.5f), c, ImVec2(0.5f, 0.5f)); } // FIXME-VIEWPORT-ABS: Select viewport based on mouse position
void SetNextWindowPosCenter(ImGuiCond cond);
// OBSOLETED in 1.51 (between Jun 2017 and Aug 2017)
static inline bool IsItemHoveredRect() { return IsItemHovered(ImGuiHoveredFlags_RectOnly); }
static inline bool IsPosHoveringAnyWindow(const ImVec2&) { IM_ASSERT(0); return false; } // This was misleading and partly broken. You probably want to use the ImGui::GetIO().WantCaptureMouse flag instead.

9
imgui_demo.cpp
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@@ -2477,11 +2477,14 @@ static void ShowExampleAppFixedOverlay(bool* p_open)
// FIXME-VIEWPORT-ABS: Select a default viewport
const float DISTANCE = 10.0f;
static int corner = 0;
ImGuiViewport* viewport = ImGui::GetMainViewport();
ImVec2 window_pos = ImVec2((corner & 1) ? (viewport->Pos.x + viewport->Size.x - DISTANCE) : (viewport->Pos.x + DISTANCE), (corner & 2) ? (viewport->Pos.y + viewport->Size.y - DISTANCE) : (viewport->Pos.y + DISTANCE));
ImVec2 window_pos_pivot = ImVec2((corner & 1) ? 1.0f : 0.0f, (corner & 2) ? 1.0f : 0.0f);
if (corner != -1)
{
ImGuiViewport* viewport = ImGui::GetMainViewport();
ImVec2 window_pos = ImVec2((corner & 1) ? (viewport->Pos.x + viewport->Size.x - DISTANCE) : (viewport->Pos.x + DISTANCE), (corner & 2) ? (viewport->Pos.y + viewport->Size.y - DISTANCE) : (viewport->Pos.y + DISTANCE));
ImVec2 window_pos_pivot = ImVec2((corner & 1) ? 1.0f : 0.0f, (corner & 2) ? 1.0f : 0.0f);
ImGui::SetNextWindowPos(window_pos, ImGuiCond_Always, window_pos_pivot);
ImGui::SetNextWindowViewport(viewport->ID);
}
ImGui::SetNextWindowBgAlpha(0.3f); // Transparent background
if (ImGui::Begin("Example: Fixed Overlay", p_open, (corner != -1 ? ImGuiWindowFlags_NoMove : 0) | ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_AlwaysAutoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_NoFocusOnAppearing|ImGuiWindowFlags_NoNav))
{

1
imgui_internal.h
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@@ -1080,7 +1080,6 @@ namespace ImGui
// Viewports
IMGUI_API ImGuiViewportP* FindViewportByID(ImGuiID id);
IMGUI_API void SetNextWindowViewport(ImGuiID id);
IMGUI_API void ScaleWindowsInViewport(ImGuiViewportP* viewport, float scale);
IMGUI_API void ShowViewportThumbnails();