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Examples: Misc tweaks/fixes.

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This commit is contained in:
omar 2018-02-27 10:29:37 +01:00
parent 3f335b0d42
commit 29510fcb83
3 changed files with 52 additions and 44 deletions
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92
examples/imgui_impl_glfw.cpp
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@ -13,7 +13,6 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Inputs: Added support for mouse cursors, honoring ImGui::GetMouseCursor() value.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplGlfwGL3_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.
// 2018-01-25: Inputs: Added gamepad support if ImGuiNavFlags_EnableGamepad is set.
@ -26,7 +25,7 @@
#include "imgui.h"
#include "imgui_impl_glfw.h"
// GL3W/GLFW
// GLFW
#include <GLFW/glfw3.h>
#ifdef _WIN32
#undef APIENTRY
@ -37,22 +36,22 @@
// Data
static GLFWwindow* g_Window = NULL;
static double g_Time = 0.0f;
static bool g_MouseJustPressed[3] = { false, false, false };
static bool g_MouseJustPressed[5] = { false, false, false, false, false };
static GLFWcursor* g_MouseCursors[ImGuiMouseCursor_Count_] = { 0 };
static const char* ImGui_ImplGlfwGL3_GetClipboardText(void* user_data)
static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data)
{
return glfwGetClipboardString((GLFWwindow*)user_data);
}
static void ImGui_ImplGlfwGL3_SetClipboardText(void* user_data, const char* text)
static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
{
glfwSetClipboardString((GLFWwindow*)user_data, text);
}
void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/)
{
if (action == GLFW_PRESS && button >= 0 && button < 3)
if (action == GLFW_PRESS && button >= 0 && button < IM_ARRAYSIZE(g_MouseJustPressed))
g_MouseJustPressed[button] = true;
}
@ -85,6 +84,14 @@ void ImGui_ImplGlfw_CharCallback(GLFWwindow*, unsigned int c)
io.AddInputCharacter((unsigned short)c);
}
void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
{
glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
}
bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
{
g_Window = window;
@ -112,8 +119,8 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
io.KeyMap[ImGuiKey_Y] = GLFW_KEY_Y;
io.KeyMap[ImGuiKey_Z] = GLFW_KEY_Z;
io.SetClipboardTextFn = ImGui_ImplGlfwGL3_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfwGL3_GetClipboardText;
io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
io.ClipboardUserData = g_Window;
#ifdef _WIN32
io.ImeWindowHandle = glfwGetWin32Window(g_Window);
@ -128,12 +135,7 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); // FIXME: GLFW doesn't have this.
if (install_callbacks)
{
glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
}
ImGui_ImplGlfw_InstallCallbacks(window);
return true;
}
@ -147,6 +149,37 @@ void ImGui_ImplGlfw_Shutdown()
}
}
static void ImGui_ImplGlfw_UpdateMousePosButtons()
{
// Update buttons
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
// If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
io.MouseDown[i] = g_MouseJustPressed[i] || glfwGetMouseButton(g_Window, i) != 0;
g_MouseJustPressed[i] = false;
}
// Update mouse position
if (glfwGetWindowAttrib(g_Window, GLFW_FOCUSED))
{
if (io.WantMoveMouse)
{
glfwSetCursorPos(g_Window, (double)io.MousePos.x, (double)io.MousePos.y); // Set mouse position if requested by io.WantMoveMouse flag (used when io.NavMovesTrue is enabled by user and using directional navigation)
}
else
{
double mouse_x, mouse_y;
glfwGetCursorPos(g_Window, &mouse_x, &mouse_y);
io.MousePos = ImVec2((float)mouse_x, (float)mouse_y);
}
}
else
{
io.MousePos = ImVec2(-FLT_MAX,-FLT_MAX);
}
}
void ImGui_ImplGlfw_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
@ -165,34 +198,9 @@ void ImGui_ImplGlfw_NewFrame()
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f/60.0f);
g_Time = current_time;
// Setup inputs
// (we already got mouse wheel, keyboard keys & characters from glfw callbacks polled in glfwPollEvents())
if (glfwGetWindowAttrib(g_Window, GLFW_FOCUSED))
{
if (io.WantMoveMouse)
{
glfwSetCursorPos(g_Window, (double)io.MousePos.x, (double)io.MousePos.y); // Set mouse position if requested by io.WantMoveMouse flag (used when io.NavMovesTrue is enabled by user and using directional navigation)
}
else
{
double mouse_x, mouse_y;
glfwGetCursorPos(g_Window, &mouse_x, &mouse_y);
io.MousePos = ImVec2((float)mouse_x, (float)mouse_y);
}
}
else
{
io.MousePos = ImVec2(-FLT_MAX,-FLT_MAX);
}
ImGui_ImplGlfw_UpdateMousePosButtons();
for (int i = 0; i < 3; i++)
{
// If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
io.MouseDown[i] = g_MouseJustPressed[i] || glfwGetMouseButton(g_Window, i) != 0;
g_MouseJustPressed[i] = false;
}
// Hide OS mouse cursor if ImGui is drawing it
// Update OS/hardware mouse cursor if imgui isn't drawing a software cursor
ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None)
{
@ -200,8 +208,8 @@ void ImGui_ImplGlfw_NewFrame()
}
else
{
glfwSetCursor(g_Window, g_MouseCursors[cursor] ? g_MouseCursors[cursor] : g_MouseCursors[ImGuiMouseCursor_Arrow]);
glfwSetInputMode(g_Window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
glfwSetCursor(g_Window, g_MouseCursors[cursor]);
}
// Gamepad navigation mapping [BETA]

2
examples/imgui_impl_sdl2.cpp
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@ -26,7 +26,7 @@
#include "imgui.h"
#include "imgui_impl_sdl2.h"
// SDL,GL3W
// SDL
#include <SDL.h>
#include <SDL_syswm.h>

2
examples/imgui_impl_win32.h
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@ -7,7 +7,7 @@ IMGUI_API void ImGui_ImplWin32_NewFrame();
// Handler for Win32 messages, update mouse/keyboard data.
// You may or not need this for your implementation, but it can serve as reference for handling inputs.
// Commented out to avoid dragging dependencies on <windows.h> types. You can copy the extern declaration in your code.
// Intentionally commented out to avoid dragging dependencies on <windows.h> types. You can copy the extern declaration in your code.
/*
IMGUI_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
*/