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Viewport, Platform: Refactored platform interface. Removed need to use imgui_internal.h in backends. Split viewport into public facing ImGuiViewport and internal structure. Exposing enough data to provide custom tweaked renderers. Renamed handlers, fixed lots of inconsistencies. (#1542, #1042)

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This commit is contained in:
omar
2018-03-18 18:44:57 +01:00
parent bcf4ed28a9
commit 46b61427e1
19 changed files with 460 additions and 412 deletions
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35
examples/imgui_impl_dx10.cpp
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@ -11,7 +11,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiRendererInterface.
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2018-XX-XX: DirectX10: Offset projection matrix and clipping rectangle by draw_data->DisplayPos (which will be non-zero for multi-viewport applications).
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX10_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
@ -498,12 +498,9 @@ void ImGui_ImplDX10_NewFrame()
ImGui_ImplDX10_CreateDeviceObjects();
}
// --------------------------------------------------------------------------------------------------------
// Platform Windows
// --------------------------------------------------------------------------------------------------------
#include "imgui_internal.h" // ImGuiViewport
//--------------------------------------------------------------------------------------------------------
// Platform Interface (Optional, for multi-viewport support)
//--------------------------------------------------------------------------------------------------------
struct ImGuiPlatformDataDx10
{
@ -514,7 +511,7 @@ struct ImGuiPlatformDataDx10
~ImGuiPlatformDataDx10() { IM_ASSERT(SwapChain == NULL && RTView == NULL); }
};
static void ImGui_ImplDX10_CreateViewport(ImGuiViewport* viewport)
static void ImGui_ImplDX10_CreateWindow(ImGuiViewport* viewport)
{
ImGuiPlatformDataDx10* data = IM_NEW(ImGuiPlatformDataDx10)();
viewport->RendererUserData = data;
@ -551,7 +548,7 @@ static void ImGui_ImplDX10_CreateViewport(ImGuiViewport* viewport)
}
}
static void ImGui_ImplDX10_DestroyViewport(ImGuiViewport* viewport)
static void ImGui_ImplDX10_DestroyWindow(ImGuiViewport* viewport)
{
if (ImGuiPlatformDataDx10* data = (ImGuiPlatformDataDx10*)viewport->RendererUserData)
{
@ -566,7 +563,7 @@ static void ImGui_ImplDX10_DestroyViewport(ImGuiViewport* viewport)
viewport->RendererUserData = NULL;
}
static void ImGui_ImplDX10_ResizeViewport(ImGuiViewport* viewport, ImVec2 size)
static void ImGui_ImplDX10_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGuiPlatformDataDx10* data = (ImGuiPlatformDataDx10*)viewport->RendererUserData;
if (data->RTView)
@ -591,7 +588,7 @@ static void ImGui_ImplDX10_RenderViewport(ImGuiViewport* viewport)
g_pd3dDevice->OMSetRenderTargets(1, &data->RTView, NULL);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
g_pd3dDevice->ClearRenderTargetView(data->RTView, (float*)&clear_color);
ImGui_ImplDX10_RenderDrawData(&viewport->DrawData);
ImGui_ImplDX10_RenderDrawData(viewport->DrawData);
}
static void ImGui_ImplDX10_SwapBuffers(ImGuiViewport* viewport)
@ -602,18 +599,16 @@ static void ImGui_ImplDX10_SwapBuffers(ImGuiViewport* viewport)
void ImGui_ImplDX10_InitPlatformInterface()
{
ImGuiIO& io = ImGui::GetIO();
io.RendererInterface.CreateViewport = ImGui_ImplDX10_CreateViewport;
io.RendererInterface.DestroyViewport = ImGui_ImplDX10_DestroyViewport;
io.RendererInterface.ResizeViewport = ImGui_ImplDX10_ResizeViewport;
io.RendererInterface.RenderViewport = ImGui_ImplDX10_RenderViewport;
io.RendererInterface.SwapBuffers = ImGui_ImplDX10_SwapBuffers;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Renderer_CreateWindow = ImGui_ImplDX10_CreateWindow;
platform_io.Renderer_DestroyWindow = ImGui_ImplDX10_DestroyWindow;
platform_io.Renderer_SetWindowSize = ImGui_ImplDX10_SetWindowSize;
platform_io.Renderer_RenderWindow = ImGui_ImplDX10_RenderViewport;
platform_io.Renderer_SwapBuffers = ImGui_ImplDX10_SwapBuffers;
}
void ImGui_ImplDX10_ShutdownPlatformInterface()
{
ImGui::DestroyViewportsRendererData(ImGui::GetCurrentContext());
ImGuiIO& io = ImGui::GetIO();
memset(&io.RendererInterface, 0, sizeof(io.RendererInterface));
ImGui::DestroyPlatformWindows();
}