github
/
imgui
mirror of https://github.com/ocornut/imgui.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Examples: SDL: Minor stylistic tweaks. Fixed handling of ImGuiMouseCursor_None so it doesn't underflow array. Fixed harmless uninitialized pointer. (#1626)

pull/1628/head
omar 7 years ago
parent
7c75835200
commit
03a44acf6f
2 changed files with 30 additions and 24 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 27
      examples/sdl_opengl2_example/imgui_impl_sdl_gl2.cpp
  2. 27
      examples/sdl_opengl3_example/imgui_impl_sdl_gl3.cpp

27
examples/sdl_opengl2_example/imgui_impl_sdl_gl2.cpp
View File

@ -19,6 +19,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-02-16: Inputs: Added support for mouse cursors, honoring ImGui::GetMouseCursor() value.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplSdlGL2_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.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
@ -43,7 +44,7 @@
static Uint64 g_Time = 0;
static bool g_MousePressed[3] = { false, false, false };
static GLuint g_FontTexture = 0;
static SDL_Cursor *g_SdlCursorMap[ImGuiMouseCursor_Count_];
static SDL_Cursor* g_SdlCursors[ImGuiMouseCursor_Count_] = { 0 };
// OpenGL2 Render function.
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
@ -251,13 +252,13 @@ bool ImGui_ImplSdlGL2_Init(SDL_Window* window)
io.GetClipboardTextFn = ImGui_ImplSdlGL2_GetClipboardText;
io.ClipboardUserData = NULL;
g_SdlCursorMap[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
g_SdlCursorMap[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
g_SdlCursorMap[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
g_SdlCursorMap[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
g_SdlCursorMap[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
g_SdlCursorMap[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
g_SdlCursorMap[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
g_SdlCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
g_SdlCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
g_SdlCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
g_SdlCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
g_SdlCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
g_SdlCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
g_SdlCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
#ifdef _WIN32
SDL_SysWMinfo wmInfo;
@ -276,7 +277,7 @@ void ImGui_ImplSdlGL2_Shutdown()
ImGui_ImplSdlGL2_InvalidateDeviceObjects();
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_Count_; cursor_n++)
SDL_FreeCursor(g_SdlCursorMap[cursor_n]);
SDL_FreeCursor(g_SdlCursors[cursor_n]);
}
void ImGui_ImplSdlGL2_NewFrame(SDL_Window *window)
@ -326,12 +327,14 @@ void ImGui_ImplSdlGL2_NewFrame(SDL_Window *window)
#endif
// Hide OS mouse cursor if ImGui is drawing it
if (io.MouseDrawCursor)
ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None)
{
SDL_ShowCursor(0);
}
else
{
SDL_Cursor *cursor = g_SdlCursorMap[ImGui::GetMouseCursor()];
SDL_SetCursor(cursor);
SDL_SetCursor(g_SdlCursors[cursor]);
SDL_ShowCursor(1);
}

27
examples/sdl_opengl3_example/imgui_impl_sdl_gl3.cpp
View File

@ -12,6 +12,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-02-16: Inputs: Added support for mouse cursors, honoring ImGui::GetMouseCursor() value.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplSdlGL3_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.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
@ -45,7 +46,7 @@ static int g_ShaderHandle = 0, g_VertHandle = 0, g_FragHandle = 0;
static int g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0;
static int g_AttribLocationPosition = 0, g_AttribLocationUV = 0, g_AttribLocationColor = 0;
static unsigned int g_VboHandle = 0, g_VaoHandle = 0, g_ElementsHandle = 0;
static SDL_Cursor *g_SdlCursorMap[ImGuiMouseCursor_Count_];
static SDL_Cursor* g_SdlCursors[ImGuiMouseCursor_Count_] = { 0 };
// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly, in order to be able to run within any OpenGL engine that doesn't do so.
@ -365,13 +366,13 @@ bool ImGui_ImplSdlGL3_Init(SDL_Window* window)
io.GetClipboardTextFn = ImGui_ImplSdlGL3_GetClipboardText;
io.ClipboardUserData = NULL;
g_SdlCursorMap[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
g_SdlCursorMap[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
g_SdlCursorMap[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
g_SdlCursorMap[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
g_SdlCursorMap[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
g_SdlCursorMap[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
g_SdlCursorMap[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
g_SdlCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
g_SdlCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
g_SdlCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
g_SdlCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
g_SdlCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
g_SdlCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
g_SdlCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
#ifdef _WIN32
SDL_SysWMinfo wmInfo;
@ -390,7 +391,7 @@ void ImGui_ImplSdlGL3_Shutdown()
ImGui_ImplSdlGL3_InvalidateDeviceObjects();
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_Count_; cursor_n++)
SDL_FreeCursor(g_SdlCursorMap[cursor_n]);
SDL_FreeCursor(g_SdlCursors[cursor_n]);
}
void ImGui_ImplSdlGL3_NewFrame(SDL_Window* window)
@ -440,12 +441,14 @@ void ImGui_ImplSdlGL3_NewFrame(SDL_Window* window)
#endif
// Hide OS mouse cursor if ImGui is drawing it
if (io.MouseDrawCursor)
ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None)
{
SDL_ShowCursor(0);
}
else
{
SDL_Cursor *cursor = g_SdlCursorMap[ImGui::GetMouseCursor()];
SDL_SetCursor(cursor);
SDL_SetCursor(g_SdlCursors[cursor]);
SDL_ShowCursor(1);
}

Write Preview
Loading…
Cancel
Save