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Refactor: Move viewport code under other subsystem to simplify merging (4) (moving in multiple commits to make diff/patch behave nicely)

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docking
omar 6 years ago
parent 54a129a2e2
commit 5ce93bc0cc
1 changed files with 97 additions and 101 deletions
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198
imgui.cpp
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@ -7787,107 +7787,6 @@ ImVec2 ImGui::FindBestWindowPosForPopup(ImGuiWindow* window)
}
//-----------------------------------------------------------------------------
// [SECTION] VIEWPORTS, PLATFORM WINDOWS
//-----------------------------------------------------------------------------
// This is a default/basic function for performing the rendering/swap of multiple Platform Windows.
// Custom renderers may prefer to not call this function at all, and instead iterate the publicly exposed platform data and handle rendering/sync themselves.
// The Render/Swap functions stored in ImGuiPlatformIO are merely here to allow for this helper to exist, but you can do it yourself:
//
// ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
// for (int i = 1; i < platform_io.Viewports.Size; i++)
// MyRenderFunction(platform_io.Viewports[i], my_args);
// for (int i = 1; i < platform_io.Viewports.Size; i++)
// MySwapBufferFunction(platform_io.Viewports[i], my_args);
//
void ImGui::RenderPlatformWindowsDefault(void* platform_render_arg, void* renderer_render_arg)
{
// Skip the main viewport (index 0), which is always fully handled by the application!
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
for (int i = 1; i < platform_io.Viewports.Size; i++)
{
ImGuiViewport* viewport = platform_io.Viewports[i];
if (platform_io.Platform_RenderWindow) platform_io.Platform_RenderWindow(viewport, platform_render_arg);
if (platform_io.Renderer_RenderWindow) platform_io.Renderer_RenderWindow(viewport, renderer_render_arg);
}
for (int i = 1; i < platform_io.Viewports.Size; i++)
{
ImGuiViewport* viewport = platform_io.Viewports[i];
if (platform_io.Platform_SwapBuffers) platform_io.Platform_SwapBuffers(viewport, platform_render_arg);
if (platform_io.Renderer_SwapBuffers) platform_io.Renderer_SwapBuffers(viewport, renderer_render_arg);
}
}
static int ImGui::FindPlatformMonitorForPos(const ImVec2& pos)
{
ImGuiContext& g = *GImGui;
for (int monitor_n = 0; monitor_n < g.PlatformIO.Monitors.Size; monitor_n++)
{
const ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[monitor_n];
if (ImRect(monitor.MainPos, monitor.MainPos + monitor.MainSize).Contains(pos))
return monitor_n;
}
return -1;
}
// 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
static int ImGui::FindPlatformMonitorForRect(const ImRect& rect)
{
ImGuiContext& g = *GImGui;
// Use a minimum threshold of 1.0f so a zero-sized rect will still find its 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);
int best_monitor_n = -1;
float best_monitor_surface = 0.001f;
for (int monitor_n = 0; monitor_n < g.PlatformIO.Monitors.Size && best_monitor_surface < surface_threshold; monitor_n++)
{
const ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[monitor_n];
const ImRect monitor_rect = ImRect(monitor.MainPos, monitor.MainPos + monitor.MainSize);
if (monitor_rect.Contains(rect))
return monitor_n;
ImRect overlapping_rect = rect;
overlapping_rect.ClipWithFull(monitor_rect);
float overlapping_surface = overlapping_rect.GetWidth() * overlapping_rect.GetHeight();
if (overlapping_surface < best_monitor_surface)
continue;
best_monitor_surface = overlapping_surface;
best_monitor_n = monitor_n;
}
return best_monitor_n;
}
void ImGui::DestroyPlatformWindow(ImGuiViewportP* viewport)
{
ImGuiContext& g = *GImGui;
if (g.PlatformIO.Renderer_DestroyWindow)
g.PlatformIO.Renderer_DestroyWindow(viewport);
if (g.PlatformIO.Platform_DestroyWindow)
g.PlatformIO.Platform_DestroyWindow(viewport);
IM_ASSERT(viewport->RendererUserData == NULL);
IM_ASSERT(viewport->PlatformUserData == NULL);
viewport->PlatformHandle = NULL;
viewport->RendererUserData = viewport->PlatformHandle = NULL;
viewport->PlatformWindowCreated = false;
viewport->ClearRequestFlags();
}
void ImGui::DestroyPlatformWindows()
{
// We call the destroy window on every viewport (including the main viewport, index 0) to give a chance to the back-end
// to clear any data they may have stored in e.g. PlatformUserData, RendererUserData.
// It is convenient for the platform back-end code to store something in the main viewport, in order for e.g. the mouse handling
// code to operator a consistent manner.
// It is expected that the back-end can handle calls to Renderer_DestroyWindow/Platform_DestroyWindow without
// crashing if it doesn't have data stored.
ImGuiContext& g = *GImGui;
for (int i = 0; i < g.Viewports.Size; i++)
DestroyPlatformWindow(g.Viewports[i]);
}
//-----------------------------------------------------------------------------
// [SECTION] KEYBOARD/GAMEPAD NAVIGATION
//-----------------------------------------------------------------------------
@ -10613,6 +10512,103 @@ void ImGui::UpdatePlatformWindows()
}
}
// This is a default/basic function for performing the rendering/swap of multiple Platform Windows.
// Custom renderers may prefer to not call this function at all, and instead iterate the publicly exposed platform data and handle rendering/sync themselves.
// The Render/Swap functions stored in ImGuiPlatformIO are merely here to allow for this helper to exist, but you can do it yourself:
//
// ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
// for (int i = 1; i < platform_io.Viewports.Size; i++)
// MyRenderFunction(platform_io.Viewports[i], my_args);
// for (int i = 1; i < platform_io.Viewports.Size; i++)
// MySwapBufferFunction(platform_io.Viewports[i], my_args);
//
void ImGui::RenderPlatformWindowsDefault(void* platform_render_arg, void* renderer_render_arg)
{
// Skip the main viewport (index 0), which is always fully handled by the application!
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
for (int i = 1; i < platform_io.Viewports.Size; i++)
{
ImGuiViewport* viewport = platform_io.Viewports[i];
if (platform_io.Platform_RenderWindow) platform_io.Platform_RenderWindow(viewport, platform_render_arg);
if (platform_io.Renderer_RenderWindow) platform_io.Renderer_RenderWindow(viewport, renderer_render_arg);
}
for (int i = 1; i < platform_io.Viewports.Size; i++)
{
ImGuiViewport* viewport = platform_io.Viewports[i];
if (platform_io.Platform_SwapBuffers) platform_io.Platform_SwapBuffers(viewport, platform_render_arg);
if (platform_io.Renderer_SwapBuffers) platform_io.Renderer_SwapBuffers(viewport, renderer_render_arg);
}
}
static int ImGui::FindPlatformMonitorForPos(const ImVec2& pos)
{
ImGuiContext& g = *GImGui;
for (int monitor_n = 0; monitor_n < g.PlatformIO.Monitors.Size; monitor_n++)
{
const ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[monitor_n];
if (ImRect(monitor.MainPos, monitor.MainPos + monitor.MainSize).Contains(pos))
return monitor_n;
}
return -1;
}
// 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
static int ImGui::FindPlatformMonitorForRect(const ImRect& rect)
{
ImGuiContext& g = *GImGui;
// Use a minimum threshold of 1.0f so a zero-sized rect will still find its 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);
int best_monitor_n = -1;
float best_monitor_surface = 0.001f;
for (int monitor_n = 0; monitor_n < g.PlatformIO.Monitors.Size && best_monitor_surface < surface_threshold; monitor_n++)
{
const ImGuiPlatformMonitor& monitor = g.PlatformIO.Monitors[monitor_n];
const ImRect monitor_rect = ImRect(monitor.MainPos, monitor.MainPos + monitor.MainSize);
if (monitor_rect.Contains(rect))
return monitor_n;
ImRect overlapping_rect = rect;
overlapping_rect.ClipWithFull(monitor_rect);
float overlapping_surface = overlapping_rect.GetWidth() * overlapping_rect.GetHeight();
if (overlapping_surface < best_monitor_surface)
continue;
best_monitor_surface = overlapping_surface;
best_monitor_n = monitor_n;
}
return best_monitor_n;
}
void ImGui::DestroyPlatformWindow(ImGuiViewportP* viewport)
{
ImGuiContext& g = *GImGui;
if (g.PlatformIO.Renderer_DestroyWindow)
g.PlatformIO.Renderer_DestroyWindow(viewport);
if (g.PlatformIO.Platform_DestroyWindow)
g.PlatformIO.Platform_DestroyWindow(viewport);
IM_ASSERT(viewport->RendererUserData == NULL);
IM_ASSERT(viewport->PlatformUserData == NULL);
viewport->PlatformHandle = NULL;
viewport->RendererUserData = viewport->PlatformHandle = NULL;
viewport->PlatformWindowCreated = false;
viewport->ClearRequestFlags();
}
void ImGui::DestroyPlatformWindows()
{
// We call the destroy window on every viewport (including the main viewport, index 0) to give a chance to the back-end
// to clear any data they may have stored in e.g. PlatformUserData, RendererUserData.
// It is convenient for the platform back-end code to store something in the main viewport, in order for e.g. the mouse handling
// code to operator a consistent manner.
// It is expected that the back-end can handle calls to Renderer_DestroyWindow/Platform_DestroyWindow without
// crashing if it doesn't have data stored.
ImGuiContext& g = *GImGui;
for (int i = 0; i < g.Viewports.Size; i++)
DestroyPlatformWindow(g.Viewports[i]);
}
//-----------------------------------------------------------------------------
// [SECTION] DOCKING

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