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Viewport: Switched to using unified platform-absolute mouse coordinates, which simplify lots of problems and simplify/reduce tricky conversions, makes ImVec2 less ambiguous. Fixed various viewport/windowing/popups/synchronization bugs. Settings on host-viewport are stored as relative (made settings decently compatible between viewport enable/disabled settings). Merged ImGuiViewport::Pos and ::PlatformPos. Tweaked thumbnails. Better, smaller code. (#1542)

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This commit is contained in:
omar
2018-04-20 21:36:36 +02:00
parent 17a7f352b5
commit 456bbffcc4
6 changed files with 197 additions and 287 deletions
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examples/imgui_impl_sdl2.cpp
+1 -1
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@@ -322,7 +322,7 @@ static void ImGui_ImplSDL2_CreateWindow(ImGuiViewport* viewport)
#if SDL_HAS_ALWAYS_ON_TOP
sdl_flags |= (viewport->Flags & imGuiViewportFlags_TopMost) ? SDL_WINDOW_ALWAYS_ON_TOP : 0;
#endif
data->Window = SDL_CreateWindow("No Title Yet", (int)viewport->PlatformPos.x, (int)viewport->PlatformPos.y, (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);
data->Window = SDL_CreateWindow("No Title Yet", (int)viewport->Pos.x, (int)viewport->Pos.y, (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);
data->WindowOwned = true;
if (use_opengl)
data->GLContext = SDL_GL_CreateContext(data->Window);
examples/imgui_impl_win32.cpp
+3 -3
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@@ -406,7 +406,7 @@ static void ImGui_ImplWin32_CreateWindow(ImGuiViewport* viewport)
data->DwExStyle |= WS_EX_TOPMOST;
// Create window
RECT rect = { (LONG)viewport->PlatformPos.x, (LONG)viewport->PlatformPos.y, (LONG)(viewport->PlatformPos.x + viewport->Size.x), (LONG)(viewport->PlatformPos.y + viewport->Size.y) };
RECT rect = { (LONG)viewport->Pos.x, (LONG)viewport->Pos.y, (LONG)(viewport->Pos.x + viewport->Size.x), (LONG)(viewport->Pos.y + viewport->Size.y) };
::AdjustWindowRectEx(&rect, data->DwStyle, FALSE, data->DwExStyle);
data->Hwnd = ::CreateWindowEx(
data->DwExStyle, _T("ImGui Platform"), _T("No Title Yet"), data->DwStyle, // Style, class name, window name
@@ -514,8 +514,8 @@ static float ImGui_ImplWin32_GetWindowDpiScale(ImGuiViewport* viewport)
// The first frame a viewport is created we don't have a window yet
return ImGui_ImplWin32_GetDpiScaleForRect(
(int)(viewport->PlatformPos.x), (int)(viewport->PlatformPos.y),
(int)(viewport->PlatformPos.x + viewport->Size.x), (int)(viewport->PlatformPos.y + viewport->Size.y));
(int)(viewport->Pos.x), (int)(viewport->Pos.y),
(int)(viewport->Pos.x + viewport->Size.x), (int)(viewport->Pos.y + viewport->Size.y));
}
static LRESULT CALLBACK ImGui_ImplWin32_WndProcHandler_PlatformWindow(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
imgui.cpp
+179 -268
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File diff suppressed because it is too large Load Diff
imgui.h
+4 -5
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@@ -1152,7 +1152,7 @@ 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: Select viewport based on mouse position
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
// 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.
@@ -1947,12 +1947,11 @@ struct ImGuiViewport
{
ImGuiID ID;
ImGuiViewportFlags Flags;
ImVec2 Pos; // Position of viewport in imgui virtual space (all viewports Pos.y == 0.0f, main viewport Pos.x == 0.0f)
ImVec2 Pos; // Position of viewport both in imgui space and in OS desktop/native space
ImVec2 Size; // Size of viewport in pixel
float DpiScale; // 1.0f = 96 DPI = No extra scale
ImDrawData* DrawData; // The ImDrawData corresponding to this viewport. Valid after Render() and until the next call to NewFrame().
ImVec2 PlatformPos; // Position in OS desktop/native space
void* PlatformUserData; // void* to hold custom data structure for the platform (e.g. windowing info, render context)
void* PlatformHandle; // void* for FindViewportByPlatformHandle(). (e.g. HWND, GlfwWindow*, SDL_Window*)
bool PlatformRequestClose; // Platform window requested closure
@@ -1960,8 +1959,8 @@ struct ImGuiViewport
bool PlatformRequestResize; // Platform window requested resize (e.g. window was resize using OS windowing facility)
void* RendererUserData; // void* to hold custom data structure for the renderer (e.g. swap chain, frame-buffers etc.)
ImGuiViewport() { ID = 0; Flags = 0; DpiScale = 0.0f; DrawData = NULL; PlatformUserData = PlatformHandle = NULL; PlatformRequestClose = PlatformRequestMove = PlatformRequestResize = false; RendererUserData = NULL; }
~ImGuiViewport() { IM_ASSERT(PlatformUserData == NULL && RendererUserData == NULL); }
ImGuiViewport() { ID = 0; Flags = 0; DpiScale = 0.0f; DrawData = NULL; PlatformUserData = PlatformHandle = NULL; PlatformRequestClose = PlatformRequestMove = PlatformRequestResize = false; RendererUserData = NULL; }
~ImGuiViewport() { IM_ASSERT(PlatformUserData == NULL && RendererUserData == NULL); }
};
#if defined(__clang__)
imgui_demo.cpp
+3 -3
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@@ -2474,11 +2474,11 @@ static void ShowExampleAppConstrainedResize(bool* p_open)
// Demonstrate creating a simple static window with no decoration + a context-menu to choose which corner of the screen to use.
static void ShowExampleAppFixedOverlay(bool* p_open)
{
// FIXME-VIEWPORT: Select a default viewport
// FIXME-VIEWPORT-ABS: Select a default viewport
const float DISTANCE = 10.0f;
static int corner = 0;
ImGuiIO& io = ImGui::GetIO();
ImVec2 window_pos = ImVec2((corner & 1) ? io.DisplaySize.x - DISTANCE : DISTANCE, (corner & 2) ? io.DisplaySize.y - DISTANCE : DISTANCE);
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::SetNextWindowBgAlpha(0.3f); // Transparent background
imgui_internal.h
+7 -7
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@@ -405,13 +405,13 @@ struct ImGuiWindowSettings
{
char* Name;
ImGuiID Id;
ImVec2 Pos;
ImVec2 Pos; // NB: Settings position are stored RELATIVE to the viewport! Whereas runtime ones are absolute positions.
ImVec2 Size;
ImVec2 ViewportPlatformPos;
ImVec2 ViewportPos;
ImGuiID ViewportId;
bool Collapsed;
ImGuiWindowSettings() { Name = NULL; Id = ViewportId = 0; Pos = Size = ImVec2(0,0); ViewportPlatformPos = ImVec2(FLT_MAX, FLT_MAX); Collapsed = false; }
ImGuiWindowSettings() { Name = NULL; Id = ViewportId = 0; Pos = Size = ViewportPos = ImVec2(0, 0); Collapsed = false; }
};
struct ImGuiSettingsHandler
@@ -518,6 +518,7 @@ struct ImGuiViewportP : public ImGuiViewport
int LastFrameAsRefViewport; // Last frame number this viewport was io.MouseViewportRef
int LastFrameOverlayDrawList;
ImGuiID LastNameHash;
ImVec2 LastPos;
float Alpha; // Window opacity (when dragging dockable windows/viewports we make them transparent)
float LastAlpha;
ImGuiWindow* Window;
@@ -530,7 +531,6 @@ struct ImGuiViewportP : public ImGuiViewport
~ImGuiViewportP() { if (OverlayDrawList) IM_DELETE(OverlayDrawList); }
ImRect GetRect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
ImVec2 GetCenter() const{ return ImVec2(Pos.x + Size.x * 0.5f, Pos.y + Size.y * 0.5f); }
float GetNextX() const { const float SPACING = 4.0f; return Pos.x + Size.x + SPACING; }
};
struct ImGuiNavMoveResult
@@ -940,9 +940,9 @@ struct IMGUI_API ImGuiWindow
ImGuiID ID; // == ImHash(Name)
ImGuiWindowFlags Flags, FlagsPreviousFrame; // See enum ImGuiWindowFlags_
ImGuiViewportP* Viewport; // Always set in Begin(), only inactive windows may have a NULL value here
ImGuiID ViewportId; // Inactive windows preserve their last viewport id (since the viewport may disappear with the window inactivity)
int ViewportPlatformAllowMonitorExtend; // Reset to -1 every frame (index is guaranteed to be valid between NewFrame..EndFrame), only used in the Appearing frame of a tooltip/popup to enforce clamping to a given monitor
ImVec2 ViewportPlatformPos;
ImGuiID ViewportId; // We backup the viewport id (since the viewport may disappear or never be created if the window is inactive)
ImVec2 ViewportPos; // We backup the viewport position (since the viewport may disappear or never be created if the window is inactive)
int ViewportAllowPlatformMonitorExtend; // Reset to -1 every frame (index is guaranteed to be valid between NewFrame..EndFrame), only used in the Appearing frame of a tooltip/popup to enforce clamping to a given monitor
ImVec2 PosFloat;
ImVec2 Pos; // Position rounded-up to nearest pixel
ImVec2 Size; // Current size (==SizeFull or collapsed title bar size)