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Merge branch 'master' into docking (multi-viewport broken until next commit)

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# Conflicts:
#	backends/imgui_impl_sdl2.cpp
#	backends/imgui_impl_sdl3.cpp
This commit is contained in:
ocornut 2024-08-19 14:44:35 +02:00
commit 24b077c7f8
11 changed files with 105 additions and 21 deletions
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10
.github/workflows/build.yml vendored
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@ -123,6 +123,11 @@ jobs:
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
if: github.event_name == 'workflow_run'
- name: Build Win32 example_sdl2_sdlrenderer2
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
if: github.event_name == 'workflow_run'
- name: Build Win32 example_sdl2_vulkan
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
@ -168,6 +173,11 @@ jobs:
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
- name: Build x64 example_sdl2_sdlrenderer2
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj /p:Platform=x64 /p:Configuration=Release'
if: github.event_name == 'workflow_run'
- name: Build x64 example_sdl2_vulkan
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'

24
backends/imgui_impl_sdl2.cpp
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@ -26,6 +26,8 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2024-08-19: Storing SDL's Uint32 WindowID inside ImGuiViewport::PlatformHandle instead of SDL_Window*.
// 2024-08-19: ImGui_ImplSDL2_ProcessEvent() now ignores events intended for other SDL windows. (#7853)
// 2024-07-02: Emscripten: Added io.PlatformOpenInShellFn() handler for Emscripten versions.
// 2024-07-02: Update for io.SetPlatformImeDataFn() -> io.PlatformSetImeDataFn() renaming in main library.
// 2024-02-14: Inputs: Handle gamepad disconnection. Added ImGui_ImplSDL2_SetGamepadMode().
@ -125,6 +127,7 @@ static const Uint32 SDL_WINDOW_VULKAN = 0x10000000;
struct ImGui_ImplSDL2_Data
{
SDL_Window* Window;
Uint32 WindowID;
SDL_Renderer* Renderer;
Uint64 Time;
char* ClipboardTextData;
@ -329,6 +332,12 @@ static void ImGui_ImplSDL2_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & KMOD_GUI) != 0);
}
static ImGuiViewport* ImGui_ImplSDL2_GetViewportForWindowID(Uint32 window_id)
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : NULL;
}
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
@ -344,6 +353,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
{
case SDL_MOUSEMOTION:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->motion.windowID) == NULL)
return false;
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
@ -358,6 +369,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_MOUSEWHEEL:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->wheel.windowID) == NULL)
return false;
//IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
#if SDL_VERSION_ATLEAST(2,0,18) // If this fails to compile on Emscripten: update to latest Emscripten!
float wheel_x = -event->wheel.preciseX;
@ -376,6 +389,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->button.windowID) == NULL)
return false;
int mouse_button = -1;
if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
@ -391,12 +406,16 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_TEXTINPUT:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->text.windowID) == NULL)
return false;
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_KEYDOWN:
case SDL_KEYUP:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->key.windowID) == NULL)
return false;
ImGui_ImplSDL2_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
ImGuiKey key = ImGui_ImplSDL2_KeyEventToImGuiKey(event->key.keysym.sym, event->key.keysym.scancode);
io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
@ -414,6 +433,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
#endif
case SDL_WINDOWEVENT:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
// - When capturing mouse, SDL will send a bunch of conflicting LEAVE/ENTER event on every mouse move, but the final ENTER tends to be right.
// - However we won't get a correct LEAVE event for a captured window.
// - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,
@ -485,6 +506,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
bd->Window = window;
bd->WindowID = SDL_GetWindowID(window);
bd->Renderer = renderer;
// SDL on Linux/OSX doesn't report events for unfocused windows (see https://github.com/ocornut/imgui/issues/4960)
@ -523,7 +545,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
// Set platform dependent data in viewport
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = (void*)window;
main_viewport->PlatformHandle = (void*)(intptr_t)bd->WindowID;
main_viewport->PlatformHandleRaw = nullptr;
SDL_SysWMinfo info;
SDL_VERSION(&info.version);

40
backends/imgui_impl_sdl3.cpp
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@ -26,6 +26,8 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2024-08-19: Storing SDL_WindowID inside ImGuiViewport::PlatformHandle instead of SDL_Window*.
// 2024-08-19: ImGui_ImplSDL3_ProcessEvent() now ignores events intended for other SDL windows. (#7853)
// 2024-07-22: Update for SDL3 api changes: SDL_GetGamepads() memory ownership change. (#7807)
// 2024-07-18: Update for SDL3 api changes: SDL_GetClipboardText() memory ownership change. (#7801)
// 2024-07-15: Update for SDL3 api changes: SDL_GetProperty() change to SDL_GetPointerProperty(). (#7794)
@ -85,6 +87,7 @@
struct ImGui_ImplSDL3_Data
{
SDL_Window* Window;
SDL_WindowID WindowID;
SDL_Renderer* Renderer;
Uint64 Time;
char* ClipboardTextData;
@ -144,7 +147,8 @@ static void ImGui_ImplSDL3_SetClipboardText(void*, const char* text)
static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport* viewport, ImGuiPlatformImeData* data)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
SDL_Window* window = (SDL_Window*)viewport->PlatformHandle;
SDL_WindowID window_id = (SDL_WindowID)(intptr_t)viewport->PlatformHandle;
SDL_Window* window = SDL_GetWindowFromID(window_id);
if ((data->WantVisible == false || bd->ImeWindow != window) && bd->ImeWindow != NULL)
{
SDL_StopTextInput(bd->ImeWindow);
@ -305,6 +309,13 @@ static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & SDL_KMOD_GUI) != 0);
}
static ImGuiViewport* ImGui_ImplSDL3_GetViewportForWindowID(SDL_WindowID window_id)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : NULL;
}
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
@ -320,6 +331,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
{
case SDL_EVENT_MOUSE_MOTION:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->motion.windowID) == NULL)
return false;
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
@ -334,6 +347,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
}
case SDL_EVENT_MOUSE_WHEEL:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->wheel.windowID) == NULL)
return false;
//IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
float wheel_x = -event->wheel.x;
float wheel_y = event->wheel.y;
@ -347,6 +362,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
case SDL_EVENT_MOUSE_BUTTON_DOWN:
case SDL_EVENT_MOUSE_BUTTON_UP:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->button.windowID) == NULL)
return false;
int mouse_button = -1;
if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
@ -362,12 +379,16 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
}
case SDL_EVENT_TEXT_INPUT:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->text.windowID) == NULL)
return false;
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_EVENT_KEY_DOWN:
case SDL_EVENT_KEY_UP:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->key.windowID) == NULL)
return false;
//IMGUI_DEBUG_LOG("SDL_EVENT_KEY_%d: key=%d, scancode=%d, mod=%X\n", (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP", event->key.key, event->key.scancode, event->key.mod);
ImGui_ImplSDL3_UpdateKeyModifiers((SDL_Keymod)event->key.mod);
ImGuiKey key = ImGui_ImplSDL3_KeyEventToImGuiKey(event->key.key, event->key.scancode);
@ -386,6 +407,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
}
case SDL_EVENT_WINDOW_MOUSE_ENTER:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
bd->MouseWindowID = event->window.windowID;
bd->MousePendingLeaveFrame = 0;
return true;
@ -396,18 +419,23 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
// FIXME: Unconfirmed whether this is still needed with SDL3.
case SDL_EVENT_WINDOW_MOUSE_LEAVE:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
bd->MousePendingLeaveFrame = ImGui::GetFrameCount() + 1;
return true;
}
case SDL_EVENT_WINDOW_FOCUS_GAINED:
io.AddFocusEvent(true);
return true;
case SDL_EVENT_WINDOW_FOCUS_LOST:
io.AddFocusEvent(false);
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
io.AddFocusEvent(event->type == SDL_EVENT_WINDOW_FOCUS_GAINED);
return true;
}
case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
case SDL_EVENT_WINDOW_MOVED:
case SDL_EVENT_WINDOW_RESIZED:
{
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle((void*)SDL_GetWindowFromID(event->window.windowID)))
{
if (event->type == SDL_EVENT_WINDOW_CLOSE_REQUESTED)
@ -419,6 +447,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
return true;
}
return true;
}
case SDL_EVENT_GAMEPAD_ADDED:
case SDL_EVENT_GAMEPAD_REMOVED:
{
@ -431,7 +460,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
static void ImGui_ImplSDL3_SetupPlatformHandles(ImGuiViewport* viewport, SDL_Window* window)
{
viewport->PlatformHandle = window;
viewport->PlatformHandle = (void*)(intptr_t)SDL_GetWindowID(window);
viewport->PlatformHandleRaw = nullptr;
#if defined(_WIN32) && !defined(__WINRT__)
viewport->PlatformHandleRaw = (HWND)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_WIN32_HWND_POINTER, nullptr);
@ -468,6 +497,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
bd->Window = window;
bd->WindowID = SDL_GetWindowID(window);
bd->Renderer = renderer;
// SDL on Linux/OSX doesn't report events for unfocused windows (see https://github.com/ocornut/imgui/issues/4960)

3
docs/CHANGELOG.txt
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@ -47,8 +47,11 @@ Other changes:
payload over an already open tree node would incorrectly select it. (#7850)
- MultiSelect+TreeNode: default open behavior is OpenOnDoubleClick + OpenOnArrow
when used in a multi-select context without any OpenOnXXX flags set. (#7850)
- TextLink(), TextLinkOpenURL(): change mouse cursor to Hand shape when hovered. (#7885, #7660)
- Backends: GLFW: added ImGui_ImplGlfw_Sleep() helper function because GLFW does not
provide a way to do a portable sleep. (#7844)
- Backends: SDL2, SDL3: ignore events of other SDL windows. (#7853) [@madebr, @ocornut]
- Backends: SDL2, SDL3: storing SDL_WindowID inside ImGuiViewport::PlatformHandle instead of SDL_Window*.
- Examples: GLFW (all), SDL2 (all), SDL3 (all), Win32+OpenGL3: rework examples main loop
to handle minimization without burning CPU or GPU by running unthrottled code. (#7844)

2
examples/example_sdl2_sdlrenderer2/main.cpp
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@ -47,7 +47,7 @@ int main(int, char**)
if (renderer == nullptr)
{
SDL_Log("Error creating SDL_Renderer!");
return 0;
return -1;
}
//SDL_RendererInfo info;
//SDL_GetRendererInfo(renderer, &info);

23
imgui.cpp
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@ -6896,15 +6896,28 @@ void ImGui::UpdateWindowSkipRefresh(ImGuiWindow* window)
return;
if (window->Hidden) // If was hidden (previous frame)
return;
if ((g.NextWindowData.RefreshFlagsVal & ImGuiWindowRefreshFlags_RefreshOnHover) && g.HoveredWindow && window->RootWindow == g.HoveredWindow->RootWindow)
return;
if ((g.NextWindowData.RefreshFlagsVal & ImGuiWindowRefreshFlags_RefreshOnFocus) && g.NavWindow && window->RootWindow == g.NavWindow->RootWindow)
return;
if ((g.NextWindowData.RefreshFlagsVal & ImGuiWindowRefreshFlags_RefreshOnHover) && g.HoveredWindow)
if (window->RootWindow == g.HoveredWindow->RootWindow || IsWindowWithinBeginStackOf(g.HoveredWindow->RootWindow, window))
return;
if ((g.NextWindowData.RefreshFlagsVal & ImGuiWindowRefreshFlags_RefreshOnFocus) && g.NavWindow)
if (window->RootWindow == g.NavWindow->RootWindow || IsWindowWithinBeginStackOf(g.NavWindow->RootWindow, window))
return;
window->DrawList = NULL;
window->SkipRefresh = true;
}
}
static void SetWindowActiveForSkipRefresh(ImGuiWindow* window)
{
window->Active = true;
for (ImGuiWindow* child : window->DC.ChildWindows)
if (!child->Hidden)
{
child->Active = child->SkipRefresh = true;
SetWindowActiveForSkipRefresh(child);
}
}
// When a modal popup is open, newly created windows that want focus (i.e. are not popups and do not specify ImGuiWindowFlags_NoFocusOnAppearing)
// should be positioned behind that modal window, unless the window was created inside the modal begin-stack.
// In case of multiple stacked modals newly created window honors begin stack order and does not go below its own modal parent.
@ -7758,7 +7771,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
{
// Skip refresh always mark active
if (window->SkipRefresh)
window->Active = true;
SetWindowActiveForSkipRefresh(window);
// Append
SetCurrentViewport(window, window->Viewport);

2
imgui.h
View File

@ -3502,7 +3502,7 @@ struct ImFontAtlas
struct ImFont
{
// Members: Hot ~20/24 bytes (for CalcTextSize)
ImVector<float> IndexAdvanceX; // 12-16 // out // // Sparse. Glyphs->AdvanceX in a directly indexable way (cache-friendly for CalcTextSize functions which only this this info, and are often bottleneck in large UI).
ImVector<float> IndexAdvanceX; // 12-16 // out // // Sparse. Glyphs->AdvanceX in a directly indexable way (cache-friendly for CalcTextSize functions which only this info, and are often bottleneck in large UI).
float FallbackAdvanceX; // 4 // out // = FallbackGlyph->AdvanceX
float FontSize; // 4 // in // // Height of characters/line, set during loading (don't change after loading)

9
imgui_demo.cpp
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@ -322,23 +322,24 @@ static ExampleTreeNode* ExampleTree_CreateNode(const char* name, int uid, Exampl
static ExampleTreeNode* ExampleTree_CreateDemoTree()
{
static const char* root_names[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pear", "Pineapple", "Strawberry", "Watermelon" };
char name_buf[32];
const size_t NAME_MAX_LEN = sizeof(ExampleTreeNode::Name);
char name_buf[NAME_MAX_LEN];
int uid = 0;
ExampleTreeNode* node_L0 = ExampleTree_CreateNode("<ROOT>", ++uid, NULL);
const int root_items_multiplier = 2;
for (int idx_L0 = 0; idx_L0 < IM_ARRAYSIZE(root_names) * root_items_multiplier; idx_L0++)
{
snprintf(name_buf, 32, "%s %d", root_names[idx_L0 / root_items_multiplier], idx_L0 % root_items_multiplier);
snprintf(name_buf, IM_ARRAYSIZE(name_buf), "%s %d", root_names[idx_L0 / root_items_multiplier], idx_L0 % root_items_multiplier);
ExampleTreeNode* node_L1 = ExampleTree_CreateNode(name_buf, ++uid, node_L0);
const int number_of_childs = (int)strlen(node_L1->Name);
for (int idx_L1 = 0; idx_L1 < number_of_childs; idx_L1++)
{
snprintf(name_buf, 32, "Child %d", idx_L1);
snprintf(name_buf, IM_ARRAYSIZE(name_buf), "Child %d", idx_L1);
ExampleTreeNode* node_L2 = ExampleTree_CreateNode(name_buf, ++uid, node_L1);
node_L2->HasData = true;
if (idx_L1 == 0)
{
snprintf(name_buf, 32, "Sub-child %d", 0);
snprintf(name_buf, IM_ARRAYSIZE(name_buf), "Sub-child %d", 0);
ExampleTreeNode* node_L3 = ExampleTree_CreateNode(name_buf, ++uid, node_L2);
node_L3->HasData = true;
}

5
imgui_draw.cpp
View File

@ -2821,8 +2821,9 @@ static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
{
// Check for valid range. This may also help detect *some* dangling pointers, because a common
// user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent.
IM_ASSERT(src_range[0] <= src_range[1]);
// user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent,
// or to forget to zero-terminate the glyph range array.
IM_ASSERT(src_range[0] <= src_range[1] && "Invalid range: is your glyph range array persistent? it is zero-terminated?");
src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
}
dst_tmp.SrcCount++;

3
imgui_widgets.cpp
View File

@ -1431,6 +1431,9 @@ bool ImGui::TextLink(const char* label)
bool pressed = ButtonBehavior(bb, id, &hovered, &held);
RenderNavHighlight(bb, id, ImGuiNavHighlightFlags_None);
if (hovered)
SetMouseCursor(ImGuiMouseCursor_Hand);
ImVec4 text_colf = g.Style.Colors[ImGuiCol_TextLink];
ImVec4 line_colf = text_colf;
{

5
misc/freetype/imgui_freetype.cpp
View File

@ -480,8 +480,9 @@ bool ImFontAtlasBuildWithFreeTypeEx(FT_Library ft_library, ImFontAtlas* atlas, u
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
{
// Check for valid range. This may also help detect *some* dangling pointers, because a common
// user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent.
IM_ASSERT(src_range[0] <= src_range[1]);
// user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent,
// or to forget to zero-terminate the glyph range array.
IM_ASSERT(src_range[0] <= src_range[1] && "Invalid range: is your glyph range array persistent? it is zero-terminated?");
src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
}
dst_tmp.SrcCount++;