718 lines
21 KiB
C++
718 lines
21 KiB
C++
/**********************************************************************************************
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*
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* raylibExtras * Utilities and Shared Components for Raylib
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*
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* rlImGui * basic ImGui integration
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*
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* LICENSE: ZLIB
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*
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* Copyright (c) 2020 Jeffery Myers
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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**********************************************************************************************/
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#include "rlImGui.h"
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#include "imgui_impl_raylib.h"
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#include "raylib.h"
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#include "rlgl.h"
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#ifdef PLATFORM_DESKTOP
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#include <GLFW/glfw3.h>
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#endif
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#include <math.h>
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#include <map>
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#ifndef NO_FONT_AWESOME
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#include "extras/FA6FreeSolidFontData.h"
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#endif
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static ImGuiMouseCursor CurrentMouseCursor = ImGuiMouseCursor_COUNT;
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static MouseCursor MouseCursorMap[ImGuiMouseCursor_COUNT];
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ImGuiContext* GlobalContext = nullptr;
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static std::map<KeyboardKey, ImGuiKey> RaylibKeyMap;
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static bool LastFrameFocused = false;
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static bool LastControlPressed = false;
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static bool LastShiftPressed = false;
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static bool LastAltPressed = false;
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static bool LastSuperPressed = false;
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bool rlImGuiIsControlDown() { return IsKeyDown(KEY_RIGHT_CONTROL) || IsKeyDown(KEY_LEFT_CONTROL); }
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bool rlImGuiIsShiftDown() { return IsKeyDown(KEY_RIGHT_SHIFT) || IsKeyDown(KEY_LEFT_SHIFT); }
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bool rlImGuiIsAltDown() { return IsKeyDown(KEY_RIGHT_ALT) || IsKeyDown(KEY_LEFT_ALT); }
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bool rlImGuiIsSuperDown() { return IsKeyDown(KEY_RIGHT_SUPER) || IsKeyDown(KEY_LEFT_SUPER); }
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void ReloadFonts()
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{
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ImGuiIO& io = ImGui::GetIO();
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unsigned char* pixels = nullptr;
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int width;
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int height;
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io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, nullptr);
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Image image = GenImageColor(width, height, BLANK);
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memcpy(image.data, pixels, width * height * 4);
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Texture2D* fontTexture = (Texture2D*)io.Fonts->TexID;
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if (fontTexture && fontTexture->id != 0)
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{
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UnloadTexture(*fontTexture);
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MemFree(fontTexture);
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}
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fontTexture = (Texture2D*)MemAlloc(sizeof(Texture2D));
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*fontTexture = LoadTextureFromImage(image);
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UnloadImage(image);
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io.Fonts->TexID = fontTexture;
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}
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static const char* GetClipTextCallback(void*)
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{
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return GetClipboardText();
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}
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static void SetClipTextCallback(void*, const char* text)
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{
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SetClipboardText(text);
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}
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static void ImGuiNewFrame(float deltaTime)
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{
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ImGuiIO& io = ImGui::GetIO();
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if (IsWindowFullscreen())
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{
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int monitor = GetCurrentMonitor();
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io.DisplaySize.x = float(GetMonitorWidth(monitor));
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io.DisplaySize.y = float(GetMonitorHeight(monitor));
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}
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else
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{
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io.DisplaySize.x = float(GetScreenWidth());
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io.DisplaySize.y = float(GetScreenHeight());
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}
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int width = int(io.DisplaySize.x), height = int(io.DisplaySize.y);
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#ifdef PLATFORM_DESKTOP
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glfwGetFramebufferSize(glfwGetCurrentContext(), &width, &height);
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#endif
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if (width > 0 && height > 0)
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{
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io.DisplayFramebufferScale = ImVec2(width / io.DisplaySize.x, height / io.DisplaySize.y);
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}
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else
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{
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io.DisplayFramebufferScale = ImVec2(1.0f, 1.0f);
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}
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io.DeltaTime = deltaTime;
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if (io.WantSetMousePos)
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{
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SetMousePosition((int)io.MousePos.x, (int)io.MousePos.y);
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}
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else
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{
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io.AddMousePosEvent((float)GetMouseX(), (float)GetMouseY());
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}
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auto setMouseEvent = [&io](int rayMouse, int imGuiMouse)
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{
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if (IsMouseButtonPressed(rayMouse))
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io.AddMouseButtonEvent(imGuiMouse, true);
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else if (IsMouseButtonReleased(rayMouse))
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io.AddMouseButtonEvent(imGuiMouse, false);
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};
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setMouseEvent(MOUSE_BUTTON_LEFT, ImGuiMouseButton_Left);
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setMouseEvent(MOUSE_BUTTON_RIGHT, ImGuiMouseButton_Right);
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setMouseEvent(MOUSE_BUTTON_MIDDLE, ImGuiMouseButton_Middle);
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setMouseEvent(MOUSE_BUTTON_FORWARD, ImGuiMouseButton_Middle+1);
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setMouseEvent(MOUSE_BUTTON_BACK, ImGuiMouseButton_Middle+2);
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{
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Vector2 mouseWheel = GetMouseWheelMoveV();
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io.AddMouseWheelEvent(mouseWheel.x, mouseWheel.y);
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}
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if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) == 0)
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{
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ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
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if (imgui_cursor != CurrentMouseCursor || io.MouseDrawCursor)
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{
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CurrentMouseCursor = imgui_cursor;
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if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
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{
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HideCursor();
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}
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else
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{
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ShowCursor();
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if (!(io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange))
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{
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SetMouseCursor((imgui_cursor > -1 && imgui_cursor < ImGuiMouseCursor_COUNT) ? MouseCursorMap[imgui_cursor] : MOUSE_CURSOR_DEFAULT);
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}
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}
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}
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}
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}
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static void ImGuiTriangleVert(ImDrawVert& idx_vert)
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{
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Color* c;
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c = (Color*)&idx_vert.col;
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rlColor4ub(c->r, c->g, c->b, c->a);
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rlTexCoord2f(idx_vert.uv.x, idx_vert.uv.y);
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rlVertex2f(idx_vert.pos.x, idx_vert.pos.y);
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}
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static void ImGuiRenderTriangles(unsigned int count, int indexStart, const ImVector<ImDrawIdx>& indexBuffer, const ImVector<ImDrawVert>& vertBuffer, void* texturePtr)
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{
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if (count < 3)
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return;
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Texture* texture = (Texture*)texturePtr;
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unsigned int textureId = (texture == nullptr) ? 0 : texture->id;
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rlBegin(RL_TRIANGLES);
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rlSetTexture(textureId);
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for (unsigned int i = 0; i <= (count - 3); i += 3)
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{
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if (rlCheckRenderBatchLimit(3))
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{
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rlBegin(RL_TRIANGLES);
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rlSetTexture(textureId);
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}
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ImDrawIdx indexA = indexBuffer[indexStart + i];
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ImDrawIdx indexB = indexBuffer[indexStart + i + 1];
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ImDrawIdx indexC = indexBuffer[indexStart + i + 2];
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ImDrawVert vertexA = vertBuffer[indexA];
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ImDrawVert vertexB = vertBuffer[indexB];
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ImDrawVert vertexC = vertBuffer[indexC];
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ImGuiTriangleVert(vertexA);
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ImGuiTriangleVert(vertexB);
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ImGuiTriangleVert(vertexC);
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}
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rlEnd();
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}
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static void EnableScissor(float x, float y, float width, float height)
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{
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rlEnableScissorTest();
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ImGuiIO& io = ImGui::GetIO();
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rlScissor((int)(x * io.DisplayFramebufferScale.x),
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int((GetScreenHeight() - (int)(y + height)) * io.DisplayFramebufferScale.y),
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(int)(width * io.DisplayFramebufferScale.x),
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(int)(height * io.DisplayFramebufferScale.y));
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}
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static void SetupMouseCursors()
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{
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MouseCursorMap[ImGuiMouseCursor_Arrow] = MOUSE_CURSOR_ARROW;
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MouseCursorMap[ImGuiMouseCursor_TextInput] = MOUSE_CURSOR_IBEAM;
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MouseCursorMap[ImGuiMouseCursor_Hand] = MOUSE_CURSOR_POINTING_HAND;
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MouseCursorMap[ImGuiMouseCursor_ResizeAll] = MOUSE_CURSOR_RESIZE_ALL;
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MouseCursorMap[ImGuiMouseCursor_ResizeEW] = MOUSE_CURSOR_RESIZE_EW;
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MouseCursorMap[ImGuiMouseCursor_ResizeNESW] = MOUSE_CURSOR_RESIZE_NESW;
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MouseCursorMap[ImGuiMouseCursor_ResizeNS] = MOUSE_CURSOR_RESIZE_NS;
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MouseCursorMap[ImGuiMouseCursor_ResizeNWSE] = MOUSE_CURSOR_RESIZE_NWSE;
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MouseCursorMap[ImGuiMouseCursor_NotAllowed] = MOUSE_CURSOR_NOT_ALLOWED;
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}
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void SetupFontAwesome()
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{
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#ifndef NO_FONT_AWESOME
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static const ImWchar icons_ranges[] = { ICON_MIN_FA, ICON_MAX_FA, 0 };
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ImFontConfig icons_config;
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icons_config.MergeMode = true;
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icons_config.PixelSnapH = true;
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icons_config.FontDataOwnedByAtlas = false;
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icons_config.GlyphRanges = icons_ranges;
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ImGuiIO& io = ImGui::GetIO();
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io.Fonts->AddFontFromMemoryCompressedTTF((void*)fa_solid_900_compressed_data, fa_solid_900_compressed_size, FONT_AWESOME_ICON_SIZE, &icons_config, icons_ranges);
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#endif
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}
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void SetupBackend()
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{
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ImGuiIO& io = ImGui::GetIO();
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io.BackendPlatformName = "imgui_impl_raylib";
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io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
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io.MousePos = ImVec2(0, 0);
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io.SetClipboardTextFn = SetClipTextCallback;
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io.GetClipboardTextFn = GetClipTextCallback;
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io.ClipboardUserData = nullptr;
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}
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void rlImGuiEndInitImGui()
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{
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ImGui::SetCurrentContext(GlobalContext);
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SetupFontAwesome();
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SetupMouseCursors();
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SetupBackend();
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ReloadFonts();
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}
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static void SetupKeymap()
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{
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if (!RaylibKeyMap.empty())
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return;
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// build up a map of raylib keys to ImGuiKeys
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RaylibKeyMap[KEY_APOSTROPHE] = ImGuiKey_Apostrophe;
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RaylibKeyMap[KEY_COMMA] = ImGuiKey_Comma;
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RaylibKeyMap[KEY_MINUS] = ImGuiKey_Minus;
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RaylibKeyMap[KEY_PERIOD] = ImGuiKey_Period;
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RaylibKeyMap[KEY_SLASH] = ImGuiKey_Slash;
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RaylibKeyMap[KEY_ZERO] = ImGuiKey_0;
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RaylibKeyMap[KEY_ONE] = ImGuiKey_1;
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RaylibKeyMap[KEY_TWO] = ImGuiKey_2;
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RaylibKeyMap[KEY_THREE] = ImGuiKey_3;
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RaylibKeyMap[KEY_FOUR] = ImGuiKey_4;
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RaylibKeyMap[KEY_FIVE] = ImGuiKey_5;
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RaylibKeyMap[KEY_SIX] = ImGuiKey_6;
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RaylibKeyMap[KEY_SEVEN] = ImGuiKey_7;
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RaylibKeyMap[KEY_EIGHT] = ImGuiKey_8;
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RaylibKeyMap[KEY_NINE] = ImGuiKey_9;
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RaylibKeyMap[KEY_SEMICOLON] = ImGuiKey_Semicolon;
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RaylibKeyMap[KEY_EQUAL] = ImGuiKey_Equal;
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RaylibKeyMap[KEY_A] = ImGuiKey_A;
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RaylibKeyMap[KEY_B] = ImGuiKey_B;
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RaylibKeyMap[KEY_C] = ImGuiKey_C;
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RaylibKeyMap[KEY_D] = ImGuiKey_D;
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RaylibKeyMap[KEY_E] = ImGuiKey_E;
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RaylibKeyMap[KEY_F] = ImGuiKey_F;
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RaylibKeyMap[KEY_G] = ImGuiKey_G;
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RaylibKeyMap[KEY_H] = ImGuiKey_H;
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RaylibKeyMap[KEY_I] = ImGuiKey_I;
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RaylibKeyMap[KEY_J] = ImGuiKey_J;
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RaylibKeyMap[KEY_K] = ImGuiKey_K;
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RaylibKeyMap[KEY_L] = ImGuiKey_L;
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RaylibKeyMap[KEY_M] = ImGuiKey_M;
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RaylibKeyMap[KEY_N] = ImGuiKey_N;
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RaylibKeyMap[KEY_O] = ImGuiKey_O;
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RaylibKeyMap[KEY_P] = ImGuiKey_P;
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RaylibKeyMap[KEY_Q] = ImGuiKey_Q;
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RaylibKeyMap[KEY_R] = ImGuiKey_R;
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RaylibKeyMap[KEY_S] = ImGuiKey_S;
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RaylibKeyMap[KEY_T] = ImGuiKey_T;
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RaylibKeyMap[KEY_U] = ImGuiKey_U;
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RaylibKeyMap[KEY_V] = ImGuiKey_V;
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RaylibKeyMap[KEY_W] = ImGuiKey_W;
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RaylibKeyMap[KEY_X] = ImGuiKey_X;
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RaylibKeyMap[KEY_Y] = ImGuiKey_Y;
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RaylibKeyMap[KEY_Z] = ImGuiKey_Z;
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RaylibKeyMap[KEY_SPACE] = ImGuiKey_Space;
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RaylibKeyMap[KEY_ESCAPE] = ImGuiKey_Escape;
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RaylibKeyMap[KEY_ENTER] = ImGuiKey_Enter;
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RaylibKeyMap[KEY_TAB] = ImGuiKey_Tab;
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RaylibKeyMap[KEY_BACKSPACE] = ImGuiKey_Backspace;
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RaylibKeyMap[KEY_INSERT] = ImGuiKey_Insert;
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RaylibKeyMap[KEY_DELETE] = ImGuiKey_Delete;
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RaylibKeyMap[KEY_RIGHT] = ImGuiKey_RightArrow;
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RaylibKeyMap[KEY_LEFT] = ImGuiKey_LeftArrow;
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RaylibKeyMap[KEY_DOWN] = ImGuiKey_DownArrow;
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RaylibKeyMap[KEY_UP] = ImGuiKey_UpArrow;
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RaylibKeyMap[KEY_PAGE_UP] = ImGuiKey_PageUp;
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RaylibKeyMap[KEY_PAGE_DOWN] = ImGuiKey_PageDown;
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RaylibKeyMap[KEY_HOME] = ImGuiKey_Home;
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RaylibKeyMap[KEY_END] = ImGuiKey_End;
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RaylibKeyMap[KEY_CAPS_LOCK] = ImGuiKey_CapsLock;
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RaylibKeyMap[KEY_SCROLL_LOCK] = ImGuiKey_ScrollLock;
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RaylibKeyMap[KEY_NUM_LOCK] = ImGuiKey_NumLock;
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RaylibKeyMap[KEY_PRINT_SCREEN] = ImGuiKey_PrintScreen;
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RaylibKeyMap[KEY_PAUSE] = ImGuiKey_Pause;
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RaylibKeyMap[KEY_F1] = ImGuiKey_F1;
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RaylibKeyMap[KEY_F2] = ImGuiKey_F2;
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RaylibKeyMap[KEY_F3] = ImGuiKey_F3;
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RaylibKeyMap[KEY_F4] = ImGuiKey_F4;
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RaylibKeyMap[KEY_F5] = ImGuiKey_F5;
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RaylibKeyMap[KEY_F6] = ImGuiKey_F6;
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RaylibKeyMap[KEY_F7] = ImGuiKey_F7;
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RaylibKeyMap[KEY_F8] = ImGuiKey_F8;
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RaylibKeyMap[KEY_F9] = ImGuiKey_F9;
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RaylibKeyMap[KEY_F10] = ImGuiKey_F10;
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RaylibKeyMap[KEY_F11] = ImGuiKey_F11;
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RaylibKeyMap[KEY_F12] = ImGuiKey_F12;
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RaylibKeyMap[KEY_LEFT_SHIFT] = ImGuiKey_LeftShift;
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RaylibKeyMap[KEY_LEFT_CONTROL] = ImGuiKey_LeftCtrl;
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RaylibKeyMap[KEY_LEFT_ALT] = ImGuiKey_LeftAlt;
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RaylibKeyMap[KEY_LEFT_SUPER] = ImGuiKey_LeftSuper;
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RaylibKeyMap[KEY_RIGHT_SHIFT] = ImGuiKey_RightShift;
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RaylibKeyMap[KEY_RIGHT_CONTROL] = ImGuiKey_RightCtrl;
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RaylibKeyMap[KEY_RIGHT_ALT] = ImGuiKey_RightAlt;
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RaylibKeyMap[KEY_RIGHT_SUPER] = ImGuiKey_RightSuper;
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RaylibKeyMap[KEY_KB_MENU] = ImGuiKey_Menu;
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RaylibKeyMap[KEY_LEFT_BRACKET] = ImGuiKey_LeftBracket;
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RaylibKeyMap[KEY_BACKSLASH] = ImGuiKey_Backslash;
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RaylibKeyMap[KEY_RIGHT_BRACKET] = ImGuiKey_RightBracket;
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RaylibKeyMap[KEY_GRAVE] = ImGuiKey_GraveAccent;
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RaylibKeyMap[KEY_KP_0] = ImGuiKey_Keypad0;
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RaylibKeyMap[KEY_KP_1] = ImGuiKey_Keypad1;
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RaylibKeyMap[KEY_KP_2] = ImGuiKey_Keypad2;
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RaylibKeyMap[KEY_KP_3] = ImGuiKey_Keypad3;
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RaylibKeyMap[KEY_KP_4] = ImGuiKey_Keypad4;
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RaylibKeyMap[KEY_KP_5] = ImGuiKey_Keypad5;
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RaylibKeyMap[KEY_KP_6] = ImGuiKey_Keypad6;
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RaylibKeyMap[KEY_KP_7] = ImGuiKey_Keypad7;
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RaylibKeyMap[KEY_KP_8] = ImGuiKey_Keypad8;
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RaylibKeyMap[KEY_KP_9] = ImGuiKey_Keypad9;
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RaylibKeyMap[KEY_KP_DECIMAL] = ImGuiKey_KeypadDecimal;
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RaylibKeyMap[KEY_KP_DIVIDE] = ImGuiKey_KeypadDivide;
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RaylibKeyMap[KEY_KP_MULTIPLY] = ImGuiKey_KeypadMultiply;
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RaylibKeyMap[KEY_KP_SUBTRACT] = ImGuiKey_KeypadSubtract;
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RaylibKeyMap[KEY_KP_ADD] = ImGuiKey_KeypadAdd;
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RaylibKeyMap[KEY_KP_ENTER] = ImGuiKey_KeypadEnter;
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RaylibKeyMap[KEY_KP_EQUAL] = ImGuiKey_KeypadEqual;
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}
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static void SetupGlobals()
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{
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LastFrameFocused = IsWindowFocused();
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LastControlPressed = false;
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LastShiftPressed = false;
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LastAltPressed = false;
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LastSuperPressed = false;
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}
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void rlImGuiBeginInitImGui()
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{
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SetupGlobals();
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GlobalContext = ImGui::CreateContext(nullptr);
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SetupKeymap();
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ImGuiIO& io = ImGui::GetIO();
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io.Fonts->AddFontDefault();
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}
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void rlImGuiSetup(bool dark)
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{
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rlImGuiBeginInitImGui();
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if (dark)
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ImGui::StyleColorsDark();
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else
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ImGui::StyleColorsLight();
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rlImGuiEndInitImGui();
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}
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void rlImGuiReloadFonts()
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{
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ImGui::SetCurrentContext(GlobalContext);
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ReloadFonts();
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}
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void rlImGuiBegin()
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{
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ImGui::SetCurrentContext(GlobalContext);
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rlImGuiBeginDelta(GetFrameTime());
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}
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void rlImGuiBeginDelta(float deltaTime)
|
|
{
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImGuiNewFrame(deltaTime);
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|
ImGui_ImplRaylib_ProcessEvents();
|
|
ImGui::NewFrame();
|
|
}
|
|
|
|
void rlImGuiEnd()
|
|
{
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImGui::Render();
|
|
ImGui_ImplRaylib_RenderDrawData(ImGui::GetDrawData());
|
|
}
|
|
|
|
void rlImGuiShutdown()
|
|
{
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImGui_ImplRaylib_Shutdown();
|
|
|
|
ImGui::DestroyContext();
|
|
}
|
|
|
|
void rlImGuiImage(const Texture* image)
|
|
{
|
|
if (!image)
|
|
return;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImGui::Image((ImTextureID)image, ImVec2(float(image->width), float(image->height)));
|
|
}
|
|
|
|
bool rlImGuiImageButton(const char* name, const Texture* image)
|
|
{
|
|
if (!image)
|
|
return false;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
return ImGui::ImageButton(name, (ImTextureID)image, ImVec2(float(image->width), float(image->height)));
|
|
}
|
|
|
|
bool rlImGuiImageButtonSize(const char* name, const Texture* image, ImVec2 size)
|
|
{
|
|
if (!image)
|
|
return false;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
return ImGui::ImageButton(name, (ImTextureID)image, size);
|
|
}
|
|
|
|
void rlImGuiImageSize(const Texture* image, int width, int height)
|
|
{
|
|
if (!image)
|
|
return;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImGui::Image((ImTextureID)image, ImVec2(float(width), float(height)));
|
|
}
|
|
|
|
void rlImGuiImageSizeV(const Texture* image, Vector2 size)
|
|
{
|
|
if (!image)
|
|
return;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImGui::Image((ImTextureID)image, ImVec2(size.x, size.y));
|
|
}
|
|
|
|
void rlImGuiImageRect(const Texture* image, int destWidth, int destHeight, Rectangle sourceRect)
|
|
{
|
|
if (!image)
|
|
return;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
ImVec2 uv0;
|
|
ImVec2 uv1;
|
|
|
|
if (sourceRect.width < 0)
|
|
{
|
|
uv0.x = -((float)sourceRect.x / image->width);
|
|
uv1.x = (uv0.x - (float)(fabs(sourceRect.width) / image->width));
|
|
}
|
|
else
|
|
{
|
|
uv0.x = (float)sourceRect.x / image->width;
|
|
uv1.x = uv0.x + (float)(sourceRect.width / image->width);
|
|
}
|
|
|
|
if (sourceRect.height < 0)
|
|
{
|
|
uv0.y = -((float)sourceRect.y / image->height);
|
|
uv1.y = (uv0.y - (float)(fabs(sourceRect.height) / image->height));
|
|
}
|
|
else
|
|
{
|
|
uv0.y = (float)sourceRect.y / image->height;
|
|
uv1.y = uv0.y + (float)(sourceRect.height / image->height);
|
|
}
|
|
|
|
ImGui::Image((ImTextureID)image, ImVec2(float(destWidth), float(destHeight)), uv0, uv1);
|
|
}
|
|
|
|
void rlImGuiImageRenderTexture(const RenderTexture* image)
|
|
{
|
|
if (!image)
|
|
return;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
rlImGuiImageRect(&image->texture, image->texture.width, image->texture.height, Rectangle{ 0,0, float(image->texture.width), -float(image->texture.height) });
|
|
}
|
|
|
|
void rlImGuiImageRenderTextureFit(const RenderTexture* image, bool center)
|
|
{
|
|
if (!image)
|
|
return;
|
|
if (GlobalContext)
|
|
ImGui::SetCurrentContext(GlobalContext);
|
|
|
|
ImVec2 area = ImGui::GetContentRegionAvail();
|
|
|
|
float scale = area.x / image->texture.width;
|
|
|
|
float y = image->texture.height * scale;
|
|
if (y > area.y)
|
|
{
|
|
scale = area.y / image->texture.height;
|
|
}
|
|
|
|
int sizeX = int(image->texture.width * scale);
|
|
int sizeY = int(image->texture.height * scale);
|
|
|
|
if (center)
|
|
{
|
|
ImGui::SetCursorPosX(0);
|
|
ImGui::SetCursorPosX(area.x/2 - sizeX/2);
|
|
ImGui::SetCursorPosY(ImGui::GetCursorPosY() + (area.y / 2 - sizeY / 2));
|
|
}
|
|
|
|
rlImGuiImageRect(&image->texture, sizeX, sizeY, Rectangle{ 0,0, float(image->texture.width), -float(image->texture.height) });
|
|
}
|
|
|
|
// raw ImGui backend API
|
|
bool ImGui_ImplRaylib_Init()
|
|
{
|
|
SetupGlobals();
|
|
|
|
SetupKeymap();
|
|
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
io.Fonts->AddFontDefault();
|
|
|
|
SetupFontAwesome();
|
|
|
|
SetupMouseCursors();
|
|
|
|
SetupBackend();
|
|
|
|
ReloadFonts();
|
|
|
|
return true;
|
|
}
|
|
|
|
void ImGui_ImplRaylib_Shutdown()
|
|
{
|
|
ImGuiIO& io =ImGui::GetIO();
|
|
Texture2D* fontTexture = (Texture2D*)io.Fonts->TexID;
|
|
|
|
if (fontTexture && fontTexture->id != 0)
|
|
UnloadTexture(*fontTexture);
|
|
|
|
io.Fonts->TexID = 0;
|
|
}
|
|
|
|
void ImGui_ImplRaylib_NewFrame()
|
|
{
|
|
ImGuiNewFrame(GetFrameTime());
|
|
}
|
|
|
|
void ImGui_ImplRaylib_RenderDrawData(ImDrawData* draw_data)
|
|
{
|
|
rlDrawRenderBatchActive();
|
|
rlDisableBackfaceCulling();
|
|
|
|
for (int l = 0; l < draw_data->CmdListsCount; ++l)
|
|
{
|
|
const ImDrawList* commandList = draw_data->CmdLists[l];
|
|
|
|
for (const auto& cmd : commandList->CmdBuffer)
|
|
{
|
|
EnableScissor(cmd.ClipRect.x - draw_data->DisplayPos.x, cmd.ClipRect.y - draw_data->DisplayPos.y, cmd.ClipRect.z - (cmd.ClipRect.x - draw_data->DisplayPos.x), cmd.ClipRect.w - (cmd.ClipRect.y - draw_data->DisplayPos.y));
|
|
if (cmd.UserCallback != nullptr)
|
|
{
|
|
cmd.UserCallback(commandList, &cmd);
|
|
|
|
continue;
|
|
}
|
|
|
|
ImGuiRenderTriangles(cmd.ElemCount, cmd.IdxOffset, commandList->IdxBuffer, commandList->VtxBuffer, cmd.TextureId);
|
|
rlDrawRenderBatchActive();
|
|
}
|
|
}
|
|
|
|
rlSetTexture(0);
|
|
rlDisableScissorTest();
|
|
rlEnableBackfaceCulling();
|
|
}
|
|
|
|
bool ImGui_ImplRaylib_ProcessEvents()
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
|
|
bool focused = IsWindowFocused();
|
|
if (focused != LastFrameFocused)
|
|
io.AddFocusEvent(focused);
|
|
LastFrameFocused = focused;
|
|
|
|
// handle the modifyer key events so that shortcuts work
|
|
bool ctrlDown = rlImGuiIsControlDown();
|
|
if (ctrlDown != LastControlPressed)
|
|
io.AddKeyEvent(ImGuiMod_Ctrl, ctrlDown);
|
|
LastControlPressed = ctrlDown;
|
|
|
|
bool shiftDown = rlImGuiIsShiftDown();
|
|
if (shiftDown != LastShiftPressed)
|
|
io.AddKeyEvent(ImGuiMod_Shift, shiftDown);
|
|
LastShiftPressed = shiftDown;
|
|
|
|
bool altDown = rlImGuiIsAltDown();
|
|
if (altDown != LastAltPressed)
|
|
io.AddKeyEvent(ImGuiMod_Alt, altDown);
|
|
LastAltPressed = altDown;
|
|
|
|
bool superDown = rlImGuiIsSuperDown();
|
|
if (superDown != LastSuperPressed)
|
|
io.AddKeyEvent(ImGuiMod_Super, superDown);
|
|
LastSuperPressed = superDown;
|
|
|
|
// get the pressed keys, they are in event order
|
|
int keyId = GetKeyPressed();
|
|
while (keyId != 0)
|
|
{
|
|
auto keyItr = RaylibKeyMap.find(KeyboardKey(keyId));
|
|
if (keyItr != RaylibKeyMap.end())
|
|
io.AddKeyEvent(keyItr->second, true);
|
|
keyId = GetKeyPressed();
|
|
}
|
|
|
|
// look for any keys that were down last frame and see if they were down and are released
|
|
for (const auto keyItr : RaylibKeyMap)
|
|
{
|
|
if (IsKeyReleased(keyItr.first))
|
|
io.AddKeyEvent(keyItr.second, false);
|
|
}
|
|
|
|
// add the text input in order
|
|
unsigned int pressed = GetCharPressed();
|
|
while (pressed != 0)
|
|
{
|
|
io.AddInputCharacter(pressed);
|
|
pressed = GetCharPressed();
|
|
}
|
|
|
|
return true;
|
|
}
|