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Made internal clipboard/IME handlers not rely on implicit GImGui context (#5856)

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Code in SetPlatformImeDataFn_DefaultImpl amends 3a90dc389 by temporarily setting field in caller site.
This commit is contained in:
ocornut
2023-03-08 16:21:25 +01:00
parent c8ad25caa6
commit b5f9381036
1 changed files with 30 additions and 19 deletions
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49
imgui.cpp
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@@ -991,8 +991,8 @@ static void WindowSettingsHandler_ApplyAll(ImGuiContext*, ImGuiSetti
static void WindowSettingsHandler_WriteAll(ImGuiContext*, ImGuiSettingsHandler*, ImGuiTextBuffer* buf);
// Platform Dependents default implementation for IO functions
static const char* GetClipboardTextFn_DefaultImpl(void* user_data);
static void SetClipboardTextFn_DefaultImpl(void* user_data, const char* text);
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx);
static void SetClipboardTextFn_DefaultImpl(void* user_data_ctx, const char* text);
static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport* viewport, ImGuiPlatformImeData* data);
namespace ImGui
@@ -1220,12 +1220,9 @@ ImGuiIO::ImGuiIO()
ConfigMemoryCompactTimer = 60.0f;
// Platform Functions
// Note: Initialize() will setup default clipboard/ime handlers.
BackendPlatformName = BackendRendererName = NULL;
BackendPlatformUserData = BackendRendererUserData = BackendLanguageUserData = NULL;
GetClipboardTextFn = GetClipboardTextFn_DefaultImpl; // Platform dependent default implementations
SetClipboardTextFn = SetClipboardTextFn_DefaultImpl;
ClipboardUserData = NULL;
SetPlatformImeDataFn = SetPlatformImeDataFn_DefaultImpl;
// Input (NB: we already have memset zero the entire structure!)
MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
@@ -3496,6 +3493,12 @@ void ImGui::Initialize()
// Setup default localization table
LocalizeRegisterEntries(GLocalizationEntriesEnUS, IM_ARRAYSIZE(GLocalizationEntriesEnUS));
// Setup default platform clipboard/IME handlers.
g.IO.GetClipboardTextFn = GetClipboardTextFn_DefaultImpl; // Platform dependent default implementations
g.IO.SetClipboardTextFn = SetClipboardTextFn_DefaultImpl;
g.IO.ClipboardUserData = (void*)&g; // Default implementation use the ImGuiContext as user data (ideally those would be arguments to the function)
g.IO.SetPlatformImeDataFn = SetPlatformImeDataFn_DefaultImpl;
// Create default viewport
ImGuiViewportP* viewport = IM_NEW(ImGuiViewportP)();
g.Viewports.push_back(viewport);
@@ -4837,7 +4840,19 @@ void ImGui::EndFrame()
if (g.IO.SetPlatformImeDataFn && memcmp(ime_data, &g.PlatformImeDataPrev, sizeof(ImGuiPlatformImeData)) != 0)
{
IMGUI_DEBUG_LOG_IO("Calling io.SetPlatformImeDataFn(): WantVisible: %d, InputPos (%.2f,%.2f)\n", ime_data->WantVisible, ime_data->InputPos.x, ime_data->InputPos.y);
g.IO.SetPlatformImeDataFn(GetMainViewport(), ime_data);
ImGuiViewport* viewport = GetMainViewport();
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
if (viewport->PlatformHandleRaw == NULL && g.IO.ImeWindowHandle != NULL)
{
viewport->PlatformHandleRaw = g.IO.ImeWindowHandle;
g.IO.SetPlatformImeDataFn(viewport, ime_data);
viewport->PlatformHandleRaw = NULL;
}
else
#endif
{
g.IO.SetPlatformImeDataFn(viewport, ime_data);
}
}
// Hide implicit/fallback "Debug" window if it hasn't been used
@@ -12893,9 +12908,9 @@ static void ImGui::UpdateViewportsNewFrame()
// Win32 clipboard implementation
// We use g.ClipboardHandlerData for temporary storage to ensure it is freed on Shutdown()
static const char* GetClipboardTextFn_DefaultImpl(void*)
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx)
{
ImGuiContext& g = *GImGui;
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
g.ClipboardHandlerData.clear();
if (!::OpenClipboard(NULL))
return NULL;
@@ -12956,8 +12971,9 @@ static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
}
}
static const char* GetClipboardTextFn_DefaultImpl(void*)
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx)
{
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
if (!main_clipboard)
PasteboardCreate(kPasteboardClipboard, &main_clipboard);
PasteboardSynchronize(main_clipboard);
@@ -12975,7 +12991,6 @@ static const char* GetClipboardTextFn_DefaultImpl(void*)
CFDataRef cf_data;
if (PasteboardCopyItemFlavorData(main_clipboard, item_id, CFSTR("public.utf8-plain-text"), &cf_data) == noErr)
{
ImGuiContext& g = *GImGui;
g.ClipboardHandlerData.clear();
int length = (int)CFDataGetLength(cf_data);
g.ClipboardHandlerData.resize(length + 1);
@@ -12992,15 +13007,15 @@ static const char* GetClipboardTextFn_DefaultImpl(void*)
#else
// Local Dear ImGui-only clipboard implementation, if user hasn't defined better clipboard handlers.
static const char* GetClipboardTextFn_DefaultImpl(void*)
static const char* GetClipboardTextFn_DefaultImpl(void* user_data_ctx)
{
ImGuiContext& g = *GImGui;
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
return g.ClipboardHandlerData.empty() ? NULL : g.ClipboardHandlerData.begin();
}
static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
static void SetClipboardTextFn_DefaultImpl(void* user_data_ctx, const char* text)
{
ImGuiContext& g = *GImGui;
ImGuiContext& g = *(ImGuiContext*)user_data_ctx;
g.ClipboardHandlerData.clear();
const char* text_end = text + strlen(text);
g.ClipboardHandlerData.resize((int)(text_end - text) + 1);
@@ -13022,10 +13037,6 @@ static void SetPlatformImeDataFn_DefaultImpl(ImGuiViewport* viewport, ImGuiPlatf
{
// Notify OS Input Method Editor of text input position
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
if (hwnd == 0)
hwnd = (HWND)ImGui::GetIO().ImeWindowHandle;
#endif
if (hwnd == 0)
return;