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# Conflicts:
#	imgui.cpp
#	imgui_internal.h
This commit is contained in:
omar
2017-09-06 19:17:51 +02:00
parent 1a62d46db5 2169bf6895
commit 5c4fda0fbc
22 changed files with 237 additions and 190 deletions
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51
examples/opengl2_example/imgui_impl_glfw.cpp
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@ -31,9 +31,9 @@ static float g_MouseWheel = 0.0f;
static GLuint g_FontTexture = 0;
// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
// If text or lines are blurry when integrating ImGui in your engine:
// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
void ImGui_ImplGlfw_RenderDrawLists(ImDrawData* draw_data)
void ImGui_ImplGlfwGL2_RenderDrawLists(ImDrawData* draw_data)
// 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.
// If text or lines are blurry when integrating ImGui in your engine: in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
{
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
ImGuiIO& io = ImGui::GetIO();
@ -44,8 +44,9 @@ void ImGui_ImplGlfw_RenderDrawLists(ImDrawData* draw_data)
draw_data->ScaleClipRects(io.DisplayFramebufferScale);
// We are using the OpenGL fixed pipeline to make the example code simpler to read!
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers.
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
@ -58,6 +59,7 @@ void ImGui_ImplGlfw_RenderDrawLists(ImDrawData* draw_data)
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnable(GL_TEXTURE_2D);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
//glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound
// Setup viewport, orthographic projection matrix
@ -109,32 +111,33 @@ void ImGui_ImplGlfw_RenderDrawLists(ImDrawData* draw_data)
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
glPolygonMode(GL_FRONT, last_polygon_mode[0]); glPolygonMode(GL_BACK, last_polygon_mode[1]);
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
}
static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data)
static const char* ImGui_ImplGlfwGL2_GetClipboardText(void* user_data)
{
return glfwGetClipboardString((GLFWwindow*)user_data);
}
static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
static void ImGui_ImplGlfwGL2_SetClipboardText(void* user_data, const char* text)
{
glfwSetClipboardString((GLFWwindow*)user_data, text);
}
void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/)
void ImGui_ImplGlfwGL2_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/)
{
if (action == GLFW_PRESS && button >= 0 && button < 3)
g_MousePressed[button] = true;
}
void ImGui_ImplGlfw_ScrollCallback(GLFWwindow*, double /*xoffset*/, double yoffset)
void ImGui_ImplGlfwGL2_ScrollCallback(GLFWwindow*, double /*xoffset*/, double yoffset)
{
g_MouseWheel += (float)yoffset; // Use fractional mouse wheel, 1.0 unit 5 lines.
}
void ImGui_ImplGlFw_KeyCallback(GLFWwindow*, int key, int, int action, int mods)
void ImGui_ImplGlfwGL2_KeyCallback(GLFWwindow*, int key, int, int action, int mods)
{
ImGuiIO& io = ImGui::GetIO();
if (action == GLFW_PRESS)
@ -149,14 +152,14 @@ void ImGui_ImplGlFw_KeyCallback(GLFWwindow*, int key, int, int action, int mods)
io.KeySuper = io.KeysDown[GLFW_KEY_LEFT_SUPER] || io.KeysDown[GLFW_KEY_RIGHT_SUPER];
}
void ImGui_ImplGlfw_CharCallback(GLFWwindow*, unsigned int c)
void ImGui_ImplGlfwGL2_CharCallback(GLFWwindow*, unsigned int c)
{
ImGuiIO& io = ImGui::GetIO();
if (c > 0 && c < 0x10000)
io.AddInputCharacter((unsigned short)c);
}
bool ImGui_ImplGlfw_CreateDeviceObjects()
bool ImGui_ImplGlfwGL2_CreateDeviceObjects()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
@ -182,7 +185,7 @@ bool ImGui_ImplGlfw_CreateDeviceObjects()
return true;
}
void ImGui_ImplGlfw_InvalidateDeviceObjects()
void ImGui_ImplGlfwGL2_InvalidateDeviceObjects()
{
if (g_FontTexture)
{
@ -192,7 +195,7 @@ void ImGui_ImplGlfw_InvalidateDeviceObjects()
}
}
bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
bool ImGui_ImplGlfwGL2_Init(GLFWwindow* window, bool install_callbacks)
{
g_Window = window;
@ -217,9 +220,9 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
io.KeyMap[ImGuiKey_Y] = GLFW_KEY_Y;
io.KeyMap[ImGuiKey_Z] = GLFW_KEY_Z;
io.RenderDrawListsFn = ImGui_ImplGlfw_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
io.RenderDrawListsFn = ImGui_ImplGlfwGL2_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
io.SetClipboardTextFn = ImGui_ImplGlfwGL2_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfwGL2_GetClipboardText;
io.ClipboardUserData = g_Window;
#ifdef _WIN32
io.ImeWindowHandle = glfwGetWin32Window(g_Window);
@ -227,25 +230,25 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
if (install_callbacks)
{
glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
glfwSetKeyCallback(window, ImGui_ImplGlFw_KeyCallback);
glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
glfwSetMouseButtonCallback(window, ImGui_ImplGlfwGL2_MouseButtonCallback);
glfwSetScrollCallback(window, ImGui_ImplGlfwGL2_ScrollCallback);
glfwSetKeyCallback(window, ImGui_ImplGlfwGL2_KeyCallback);
glfwSetCharCallback(window, ImGui_ImplGlfwGL2_CharCallback);
}
return true;
}
void ImGui_ImplGlfw_Shutdown()
void ImGui_ImplGlfwGL2_Shutdown()
{
ImGui_ImplGlfw_InvalidateDeviceObjects();
ImGui_ImplGlfwGL2_InvalidateDeviceObjects();
ImGui::Shutdown();
}
void ImGui_ImplGlfw_NewFrame()
void ImGui_ImplGlfwGL2_NewFrame()
{
if (!g_FontTexture)
ImGui_ImplGlfw_CreateDeviceObjects();
ImGui_ImplGlfwGL2_CreateDeviceObjects();
ImGuiIO& io = ImGui::GetIO();

23
examples/opengl2_example/imgui_impl_glfw.h
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@ -12,18 +12,17 @@
struct GLFWwindow;
IMGUI_API bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks);
IMGUI_API void ImGui_ImplGlfw_Shutdown();
IMGUI_API void ImGui_ImplGlfw_NewFrame();
IMGUI_API bool ImGui_ImplGlfwGL2_Init(GLFWwindow* window, bool install_callbacks);
IMGUI_API void ImGui_ImplGlfwGL2_Shutdown();
IMGUI_API void ImGui_ImplGlfwGL2_NewFrame();
// Use if you want to reset your rendering device without losing ImGui state.
IMGUI_API void ImGui_ImplGlfw_InvalidateDeviceObjects();
IMGUI_API bool ImGui_ImplGlfw_CreateDeviceObjects();
IMGUI_API void ImGui_ImplGlfwGL2_InvalidateDeviceObjects();
IMGUI_API bool ImGui_ImplGlfwGL2_CreateDeviceObjects();
// GLFW callbacks (installed by default if you enable 'install_callbacks' during initialization)
// Provided here if you want to chain callbacks.
// You can also handle inputs yourself and use those as a reference.
IMGUI_API void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
IMGUI_API void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
IMGUI_API void ImGui_ImplGlFw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
IMGUI_API void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c);
// GLFW callbacks (registered by default to GLFW if you enable 'install_callbacks' during initialization)
// Provided here if you want to chain callbacks yourself. You may also handle inputs yourself and use those as a reference.
IMGUI_API void ImGui_ImplGlfwGL2_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
IMGUI_API void ImGui_ImplGlfwGL2_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
IMGUI_API void ImGui_ImplGlfwGL2_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
IMGUI_API void ImGui_ImplGlfwGL2_CharCallback(GLFWwindow* window, unsigned int c);

9
examples/opengl2_example/main.cpp
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@ -22,7 +22,7 @@ int main(int, char**)
glfwSwapInterval(1); // Enable vsync
// Setup ImGui binding
ImGui_ImplGlfw_Init(window, true);
ImGui_ImplGlfwGL2_Init(window, true);
// Load Fonts
// (there is a default font, this is only if you want to change it. see extra_fonts/README.txt for more details)
@ -42,7 +42,7 @@ int main(int, char**)
while (!glfwWindowShouldClose(window))
{
glfwPollEvents();
ImGui_ImplGlfw_NewFrame();
ImGui_ImplGlfwGL2_NewFrame();
// 1. Show a simple window
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug"
@ -59,9 +59,8 @@ int main(int, char**)
// 2. Show another simple window, this time using an explicit Begin/End pair
if (show_another_window)
{
ImGui::SetNextWindowSize(ImVec2(200,100), ImGuiCond_FirstUseEver);
ImGui::Begin("Another Window", &show_another_window);
ImGui::Text("Hello");
ImGui::Text("Hello from another window!");
ImGui::End();
}
@ -84,7 +83,7 @@ int main(int, char**)
}
// Cleanup
ImGui_ImplGlfw_Shutdown();
ImGui_ImplGlfwGL2_Shutdown();
glfwTerminate();
return 0;