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Viewport: Tidying up AddUpdateViewport() calls. Moved flags argument. Removed extraneous mid-frame call to FindPlatformMonitorFromRect(). (#1542)

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This commit is contained in:
omar 2018-04-25 15:00:54 +02:00
parent 6d6580f6be
commit cc882b0723
2 changed files with 19 additions and 22 deletions
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39
imgui.cpp
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@ -757,7 +757,7 @@ static void FocusFrontMostActiveWindow(ImGuiWindow* ignore_window);
// Viewports
const ImGuiID IMGUI_VIEWPORT_DEFAULT_ID = 0x11111111; // Using an arbitrary constant instead of e.g. ImHash("ViewportDefault", 0); so it's easier to spot in the debugger. The exact value doesn't matter.
static ImGuiViewportP* AddUpdateViewport(ImGuiWindow* window, ImGuiID id, ImGuiViewportFlags flags, const ImVec2& platform_pos, const ImVec2& size);
static ImGuiViewportP* AddUpdateViewport(ImGuiWindow* window, ImGuiID id, const ImVec2& platform_pos, const ImVec2& size, ImGuiViewportFlags flags);
static void UpdateViewports();
static void UpdateSelectWindowViewport(ImGuiWindow* window);
static void UpdateTryMergeWindowIntoHostViewport(ImGuiWindow* window, ImGuiViewportP* host_viewport);
@ -3431,7 +3431,7 @@ static void ImGui::UpdateViewports()
ImVec2 main_viewport_platform_pos = ImVec2(0.0f, 0.0f);
if ((g.IO.ConfigFlags & ImGuiConfigFlags_ViewportsEnable))
main_viewport_platform_pos = g.PlatformIO.Platform_GetWindowPos(main_viewport);
AddUpdateViewport(NULL, IMGUI_VIEWPORT_DEFAULT_ID, ImGuiViewportFlags_CanHostOtherWindows, main_viewport_platform_pos, g.IO.DisplaySize);
AddUpdateViewport(NULL, IMGUI_VIEWPORT_DEFAULT_ID, main_viewport_platform_pos, g.IO.DisplaySize, ImGuiViewportFlags_CanHostOtherWindows);
g.CurrentViewport = NULL;
for (int n = 0; n < g.Viewports.Size; n++)
@ -4676,7 +4676,7 @@ void ImGui::SetCurrentViewport(ImGuiViewportP* viewport)
g.PlatformIO.Platform_OnChangedViewport(g.CurrentViewport);
}
ImGuiViewportP* ImGui::AddUpdateViewport(ImGuiWindow* window, ImGuiID id, ImGuiViewportFlags flags, const ImVec2& platform_pos, const ImVec2& size)
ImGuiViewportP* ImGui::AddUpdateViewport(ImGuiWindow* window, ImGuiID id, const ImVec2& pos, const ImVec2& size, ImGuiViewportFlags flags)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(id != 0);
@ -4684,7 +4684,7 @@ ImGuiViewportP* ImGui::AddUpdateViewport(ImGuiWindow* window, ImGuiID id, ImGuiV
ImGuiViewportP* viewport = (ImGuiViewportP*)FindViewportByID(id);
if (viewport)
{
viewport->Pos = platform_pos;
viewport->Pos = pos;
viewport->Size = size;
}
else
@ -4693,8 +4693,9 @@ ImGuiViewportP* ImGui::AddUpdateViewport(ImGuiWindow* window, ImGuiID id, ImGuiV
viewport = IM_NEW(ImGuiViewportP)();
viewport->ID = id;
viewport->Idx = g.Viewports.Size;
viewport->Pos = viewport->LastPos = platform_pos;
viewport->Pos = viewport->LastPos = pos;
viewport->Size = size;
viewport->PlatformMonitor = FindPlatformMonitorForRect(viewport->GetRect());
g.Viewports.push_back(viewport);
// We normally setup for all viewports in NewFrame() but here need to handle the mid-frame creation of a new viewport.
@ -5877,7 +5878,7 @@ static ImRect FindAllowedExtentRectForWindow(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
ImRect r_screen;
if (window->ViewportAllowPlatformMonitorExtend != -1)
if (window->ViewportAllowPlatformMonitorExtend >= 0)
{
// Extent with be in the frame of reference of the given viewport (so Min is likely to be negative here)
const ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[window->ViewportAllowPlatformMonitorExtend];
@ -6206,7 +6207,7 @@ static void ImGui::UpdateSelectWindowViewport(ImGuiWindow* window)
{
window->Viewport = FindViewportByID(window->ViewportId);
if (window->Viewport == NULL && window->ViewportPos.x != FLT_MAX && window->ViewportPos.y != FLT_MAX)
window->Viewport = AddUpdateViewport(window, window->ID, ImGuiViewportFlags_NoDecoration, window->ViewportPos, window->Size);
window->Viewport = AddUpdateViewport(window, window->ID, window->ViewportPos, window->Size, ImGuiViewportFlags_NoDecoration);
}
if (g.NextWindowData.ViewportCond)
@ -6224,18 +6225,13 @@ static void ImGui::UpdateSelectWindowViewport(ImGuiWindow* window)
{
window->Viewport = g.MouseRefViewport;
}
else if (g.MovingWindow && g.MovingWindow->RootWindow == window && IsMousePosValid())
else if (!window->ViewportOwned && g.MovingWindow && g.MovingWindow->RootWindow == window && IsMousePosValid())
{
if (window->Viewport == NULL || !window->Viewport->GetRect().Contains(window->Rect()))
{
ImVec2 viewport_pos = g.IO.MousePos - g.ActiveIdClickOffset;
ImGuiViewportFlags viewport_flags = ImGuiViewportFlags_NoDecoration | ImGuiViewportFlags_NoFocusOnAppearing | ImGuiViewportFlags_NoInputs;
window->Viewport = AddUpdateViewport(window, window->ID, viewport_flags, viewport_pos, window->Size);
}
window->Viewport = AddUpdateViewport(window, window->ID, window->Pos, window->Size, ImGuiViewportFlags_NoDecoration | ImGuiViewportFlags_NoFocusOnAppearing | ImGuiViewportFlags_NoInputs);
}
else if (!window->ViewportOwned && GetWindowAlwaysWantOwnViewport(window))
{
window->Viewport = AddUpdateViewport(window, window->ID, ImGuiViewportFlags_NoDecoration, window->Pos, window->Size);
window->Viewport = AddUpdateViewport(window, window->ID, window->Pos, window->Size, ImGuiViewportFlags_NoDecoration);
}
// Mark window as allowed to protrude outside of its viewport and into the current monitor
@ -6249,7 +6245,7 @@ static void ImGui::UpdateSelectWindowViewport(ImGuiWindow* window)
else
window->ViewportAllowPlatformMonitorExtend = window->Viewport->PlatformMonitor;
}
if (window->ViewportTrySplit && window->ViewportAllowPlatformMonitorExtend == -1)
if (window->ViewportTrySplit && window->ViewportAllowPlatformMonitorExtend < 0)
window->ViewportAllowPlatformMonitorExtend = window->Viewport->PlatformMonitor;
window->ViewportTrySplit = false;
@ -6695,14 +6691,14 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
else if ((flags & ImGuiWindowFlags_Tooltip) != 0 && !window_pos_set_by_api && !window_is_child_tooltip)
window->PosFloat = FindBestWindowPosForPopup(window);
if (window->ViewportAllowPlatformMonitorExtend != -1 && !window->ViewportOwned)
if (window->ViewportAllowPlatformMonitorExtend >= 0 && !window->ViewportOwned)
{
if (!window->Viewport->GetRect().Contains(ImRect(window->PosFloat, window->PosFloat + window->Size)))
{
// Late create viewport, based on the assumption that with our calculations, the DPI will be known ahead (same as the DPI of the selection done in UpdateSelectWindowViewport)
//ImGuiViewport* old_viewport = window->Viewport;
ImGuiViewportFlags viewport_flags = ImGuiViewportFlags_NoDecoration | ImGuiViewportFlags_NoFocusOnAppearing | ((window->Flags & ImGuiWindowFlags_NoInputs) ? ImGuiViewportFlags_NoInputs : 0);
window->Viewport = AddUpdateViewport(window, window->ID, viewport_flags, window->PosFloat, window->Size);
window->Viewport = AddUpdateViewport(window, window->ID, window->PosFloat, window->Size, viewport_flags);
// FIXME-DPI
//IM_ASSERT(old_viewport->DpiScale == window->Viewport->DpiScale); // FIXME-DPI: Something went wrong
@ -6734,8 +6730,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
ClampWindowRect(window, viewport_rect, clamp_padding);
else if (window->ViewportOwned && g.PlatformIO.Monitors.Size > 0)
{
int monitor_n = FindPlatformMonitorForRect(viewport_rect);
if (monitor_n == -1)
IM_ASSERT(window->Viewport->PlatformMonitor != INT_MIN);
if (window->Viewport->PlatformMonitor == -1)
{
// Fallback for "lost" window (e.g. a monitor disconnected): we move the window back over the main viewport
window->PosFloat = g.Viewports[0]->Pos + style.DisplayWindowPadding;
@ -6743,7 +6739,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
}
else
{
ClampWindowRect(window, ImRect(g.PlatformIO.Monitors[monitor_n].WorkMin, g.PlatformIO.Monitors[monitor_n].WorkMax), clamp_padding);
ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[window->Viewport->PlatformMonitor];
ClampWindowRect(window, ImRect(monitor.WorkMin, monitor.WorkMax), clamp_padding);
}
}
}

2
imgui_internal.h
View File

@ -528,7 +528,7 @@ struct ImGuiViewportP : public ImGuiViewport
ImDrawDataBuilder DrawDataBuilder;
ImVec2 RendererLastSize;
ImGuiViewportP() { Idx = 1; LastFrameActive = LastFrameAsRefViewport = LastFrameOverlayDrawList = -1; LastNameHash = 0; Alpha = LastAlpha = 1.0f; PlatformMonitor = -1; Window = NULL; OverlayDrawList = NULL; RendererLastSize = ImVec2(-1.0f,-1.0f); }
ImGuiViewportP() { Idx = 1; LastFrameActive = LastFrameAsRefViewport = LastFrameOverlayDrawList = -1; LastNameHash = 0; Alpha = LastAlpha = 1.0f; PlatformMonitor = INT_MIN; Window = NULL; OverlayDrawList = NULL; RendererLastSize = ImVec2(-1.0f,-1.0f); }
~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); }