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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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31
examples/imgui_impl_win32.cpp
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@@ -7,10 +7,8 @@
#include <windows.h>
#include <tchar.h>
#include "imgui_internal.h" // FIXME-PLATFORM
// CHANGELOG
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformInterface
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value and WM_SETCURSOR message handling).
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
// 2018-02-06: Inputs: Honoring the io.WantMoveMouse by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set).
@@ -363,7 +361,7 @@ struct ImGuiPlatformDataWin32
~ImGuiPlatformDataWin32() { IM_ASSERT(Hwnd == NULL); }
};
static void ImGui_ImplWin32_CreateViewport(ImGuiViewport* viewport)
static void ImGui_ImplWin32_CreateWindow(ImGuiViewport* viewport)
{
ImGuiPlatformDataWin32* data = IM_NEW(ImGuiPlatformDataWin32)();
viewport->PlatformUserData = data;
@@ -393,7 +391,7 @@ static void ImGui_ImplWin32_CreateViewport(ImGuiViewport* viewport)
viewport->PlatformHandle = data->Hwnd;
}
static void ImGui_ImplWin32_DestroyViewport(ImGuiViewport* viewport)
static void ImGui_ImplWin32_DestroyWindow(ImGuiViewport* viewport)
{
if (ImGuiPlatformDataWin32* data = (ImGuiPlatformDataWin32*)viewport->PlatformUserData)
{
@@ -523,16 +521,16 @@ static void ImGui_ImplWin32_InitPlatformInterface()
::RegisterClassEx(&wcex);
// Register platform interface (will be coupled with a renderer interface)
ImGuiIO& io = ImGui::GetIO();
io.PlatformInterface.CreateViewport = ImGui_ImplWin32_CreateViewport;
io.PlatformInterface.DestroyViewport = ImGui_ImplWin32_DestroyViewport;
io.PlatformInterface.ShowWindow = ImGui_ImplWin32_ShowWindow;
io.PlatformInterface.SetWindowPos = ImGui_ImplWin32_SetWindowPos;
io.PlatformInterface.GetWindowPos = ImGui_ImplWin32_GetWindowPos;
io.PlatformInterface.SetWindowSize = ImGui_ImplWin32_SetWindowSize;
io.PlatformInterface.GetWindowSize = ImGui_ImplWin32_GetWindowSize;
io.PlatformInterface.SetWindowTitle = ImGui_ImplWin32_SetWindowTitle;
io.PlatformInterface.GetWindowDpiScale = ImGui_ImplWin32_GetWindowDpiScale;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_CreateWindow = ImGui_ImplWin32_CreateWindow;
platform_io.Platform_DestroyWindow = ImGui_ImplWin32_DestroyWindow;
platform_io.Platform_ShowWindow = ImGui_ImplWin32_ShowWindow;
platform_io.Platform_SetWindowPos = ImGui_ImplWin32_SetWindowPos;
platform_io.Platform_GetWindowPos = ImGui_ImplWin32_GetWindowPos;
platform_io.Platform_SetWindowSize = ImGui_ImplWin32_SetWindowSize;
platform_io.Platform_GetWindowSize = ImGui_ImplWin32_GetWindowSize;
platform_io.Platform_SetWindowTitle = ImGui_ImplWin32_SetWindowTitle;
platform_io.Platform_GetWindowDpiScale = ImGui_ImplWin32_GetWindowDpiScale;
// Register main window handle
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
@@ -544,8 +542,5 @@ static void ImGui_ImplWin32_InitPlatformInterface()
static void ImGui_ImplWin32_ShutdownPlatformInterface()
{
ImGuiIO& io = ImGui::GetIO();
memset(&io.PlatformInterface, 0, sizeof(io.PlatformInterface));
::UnregisterClass(_T("ImGui Platform"), ::GetModuleHandle(NULL));
}