diff options
Diffstat (limited to '3rdparty/qtimgui')
| -rw-r--r-- | 3rdparty/qtimgui/.gitignore | 44 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/ImGuiRenderer.cpp | 381 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/ImGuiRenderer.h | 58 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/LICENSE | 21 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/QtImGui.cpp | 78 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/QtImGui.h | 15 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/README.md | 38 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/demo-widget/demo-widget.cpp | 85 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/demo-widget/demo-widget.pro | 8 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/demo-window/demo-window.cpp | 85 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/demo-window/demo-window.pro | 8 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/qtimgui.pri | 13 | ||||
| -rw-r--r-- | 3rdparty/qtimgui/qtimgui.pro | 3 |
13 files changed, 837 insertions, 0 deletions
diff --git a/3rdparty/qtimgui/.gitignore b/3rdparty/qtimgui/.gitignore new file mode 100644 index 00000000..76b26f0d --- /dev/null +++ b/3rdparty/qtimgui/.gitignore @@ -0,0 +1,44 @@ + +# Created by https://www.gitignore.io/api/qt + +### Qt ### +# C++ objects and libs + +*.slo +*.lo +*.o +*.a +*.la +*.lai +*.so +*.dll +*.dylib + +# Qt-es + +/.qmake.cache +/.qmake.stash +*.pro.user +*.pro.user.* +*.qbs.user +*.qbs.user.* +*.moc +moc_*.cpp +qrc_*.cpp +ui_*.h +Makefile* +*build-* + +# QtCreator + +*.autosave + +# QtCtreator Qml +*.qmlproject.user +*.qmlproject.user.* + +# QtCtreator CMake +CMakeLists.txt.user* + + +# End of https://www.gitignore.io/api/qt diff --git a/3rdparty/qtimgui/ImGuiRenderer.cpp b/3rdparty/qtimgui/ImGuiRenderer.cpp new file mode 100644 index 00000000..7f19dcd1 --- /dev/null +++ b/3rdparty/qtimgui/ImGuiRenderer.cpp @@ -0,0 +1,381 @@ +#include "ImGuiRenderer.h" +#include <QDateTime> +#include <QGuiApplication> +#include <QMouseEvent> +#include <QClipboard> +#include <QCursor> +#include <QDebug> + +namespace QtImGui { + +namespace { + +QHash<int, ImGuiKey> keyMap = { + { Qt::Key_Tab, ImGuiKey_Tab }, + { Qt::Key_Left, ImGuiKey_LeftArrow }, + { Qt::Key_Right, ImGuiKey_RightArrow }, + { Qt::Key_Up, ImGuiKey_UpArrow }, + { Qt::Key_Down, ImGuiKey_DownArrow }, + { Qt::Key_PageUp, ImGuiKey_PageUp }, + { Qt::Key_PageDown, ImGuiKey_PageDown }, + { Qt::Key_Home, ImGuiKey_Home }, + { Qt::Key_End, ImGuiKey_End }, + { Qt::Key_Delete, ImGuiKey_Delete }, + { Qt::Key_Backspace, ImGuiKey_Backspace }, + { Qt::Key_Enter, ImGuiKey_Enter }, + { Qt::Key_Escape, ImGuiKey_Escape }, + { Qt::Key_A, ImGuiKey_A }, + { Qt::Key_C, ImGuiKey_C }, + { Qt::Key_V, ImGuiKey_V }, + { Qt::Key_X, ImGuiKey_X }, + { Qt::Key_Y, ImGuiKey_Y }, + { Qt::Key_Z, ImGuiKey_Z }, +}; + +QByteArray g_currentClipboardText; + +} + +void ImGuiRenderer::initialize(WindowWrapper *window) { + m_window.reset(window); + initializeOpenGLFunctions(); + + ImGui::CreateContext(); + + ImGuiIO &io = ImGui::GetIO(); + for (ImGuiKey key : keyMap.values()) { + io.KeyMap[key] = key; + } + + io.RenderDrawListsFn = [](ImDrawData *drawData) { + instance()->renderDrawList(drawData); + }; + io.SetClipboardTextFn = [](void *user_data, const char *text) { + Q_UNUSED(user_data); + QGuiApplication::clipboard()->setText(text); + }; + io.GetClipboardTextFn = [](void *user_data) { + Q_UNUSED(user_data); + g_currentClipboardText = QGuiApplication::clipboard()->text().toUtf8(); + return (const char *)g_currentClipboardText.data(); + }; + + window->installEventFilter(this); +} + +void ImGuiRenderer::renderDrawList(ImDrawData *draw_data) +{ + // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates) + ImGuiIO& io = ImGui::GetIO(); + int fb_width = (int)(io.DisplaySize.x * io.DisplayFramebufferScale.x); + int fb_height = (int)(io.DisplaySize.y * io.DisplayFramebufferScale.y); + if (fb_width == 0 || fb_height == 0) + return; + draw_data->ScaleClipRects(io.DisplayFramebufferScale); + + // Backup GL state + GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture); + glActiveTexture(GL_TEXTURE0); + GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program); + GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); + GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer); + GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer); + GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array); + GLint last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, &last_blend_src_rgb); + GLint last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, &last_blend_dst_rgb); + GLint last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, &last_blend_src_alpha); + GLint last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, &last_blend_dst_alpha); + GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb); + GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha); + GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport); + GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box); + GLboolean last_enable_blend = glIsEnabled(GL_BLEND); + GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE); + GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST); + GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST); + + // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled + glEnable(GL_BLEND); + glBlendEquation(GL_FUNC_ADD); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glDisable(GL_CULL_FACE); + glDisable(GL_DEPTH_TEST); + glEnable(GL_SCISSOR_TEST); + + // Setup viewport, orthographic projection matrix + glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height); + const float ortho_projection[4][4] = + { + { 2.0f/io.DisplaySize.x, 0.0f, 0.0f, 0.0f }, + { 0.0f, 2.0f/-io.DisplaySize.y, 0.0f, 0.0f }, + { 0.0f, 0.0f, -1.0f, 0.0f }, + {-1.0f, 1.0f, 0.0f, 1.0f }, + }; + glUseProgram(g_ShaderHandle); + glUniform1i(g_AttribLocationTex, 0); + glUniformMatrix4fv(g_AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]); + glBindVertexArray(g_VaoHandle); + + for (int n = 0; n < draw_data->CmdListsCount; n++) + { + const ImDrawList* cmd_list = draw_data->CmdLists[n]; + const ImDrawIdx* idx_buffer_offset = 0; + + glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle); + glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert), (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW); + + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx), (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW); + + for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) + { + const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i]; + if (pcmd->UserCallback) + { + pcmd->UserCallback(cmd_list, pcmd); + } + else + { + glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId); + glScissor((int)pcmd->ClipRect.x, (int)(fb_height - pcmd->ClipRect.w), (int)(pcmd->ClipRect.z - pcmd->ClipRect.x), (int)(pcmd->ClipRect.w - pcmd->ClipRect.y)); + glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset); + } + idx_buffer_offset += pcmd->ElemCount; + } + } + + // Restore modified GL state + glUseProgram(last_program); + glBindTexture(GL_TEXTURE_2D, last_texture); + glActiveTexture(last_active_texture); + glBindVertexArray(last_vertex_array); + glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer); + glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha); + glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha); + if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND); + if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE); + if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST); + if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST); + 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]); +} + +bool ImGuiRenderer::createFontsTexture() +{ + // Build texture atlas + ImGuiIO& io = ImGui::GetIO(); + unsigned char* pixels; + int width, height; + io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bits (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory. + + // Upload texture to graphics system + GLint last_texture; + glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); + glGenTextures(1, &g_FontTexture); + glBindTexture(GL_TEXTURE_2D, g_FontTexture); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels); + + // Store our identifier + io.Fonts->TexID = (void *)(intptr_t)g_FontTexture; + + // Restore state + glBindTexture(GL_TEXTURE_2D, last_texture); + + return true; +} + +bool ImGuiRenderer::createDeviceObjects() +{ + // Backup GL state + GLint last_texture, last_array_buffer, last_vertex_array; + glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); + glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer); + glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array); + + const GLchar *vertex_shader = + "#version 330\n" + "uniform mat4 ProjMtx;\n" + "in vec2 Position;\n" + "in vec2 UV;\n" + "in vec4 Color;\n" + "out vec2 Frag_UV;\n" + "out vec4 Frag_Color;\n" + "void main()\n" + "{\n" + " Frag_UV = UV;\n" + " Frag_Color = Color;\n" + " gl_Position = ProjMtx * vec4(Position.xy,0,1);\n" + "}\n"; + + const GLchar* fragment_shader = + "#version 330\n" + "uniform sampler2D Texture;\n" + "in vec2 Frag_UV;\n" + "in vec4 Frag_Color;\n" + "out vec4 Out_Color;\n" + "void main()\n" + "{\n" + " Out_Color = Frag_Color * texture( Texture, Frag_UV.st);\n" + "}\n"; + + g_ShaderHandle = glCreateProgram(); + g_VertHandle = glCreateShader(GL_VERTEX_SHADER); + g_FragHandle = glCreateShader(GL_FRAGMENT_SHADER); + glShaderSource(g_VertHandle, 1, &vertex_shader, 0); + glShaderSource(g_FragHandle, 1, &fragment_shader, 0); + glCompileShader(g_VertHandle); + glCompileShader(g_FragHandle); + glAttachShader(g_ShaderHandle, g_VertHandle); + glAttachShader(g_ShaderHandle, g_FragHandle); + glLinkProgram(g_ShaderHandle); + + g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture"); + g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx"); + g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position"); + g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV"); + g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color"); + + glGenBuffers(1, &g_VboHandle); + glGenBuffers(1, &g_ElementsHandle); + + glGenVertexArrays(1, &g_VaoHandle); + glBindVertexArray(g_VaoHandle); + glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle); + glEnableVertexAttribArray(g_AttribLocationPosition); + glEnableVertexAttribArray(g_AttribLocationUV); + glEnableVertexAttribArray(g_AttribLocationColor); + +#define OFFSETOF(TYPE, ELEMENT) ((size_t)&(((TYPE *)0)->ELEMENT)) + glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, pos)); + glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, uv)); + glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, col)); +#undef OFFSETOF + + createFontsTexture(); + + // Restore modified GL state + glBindTexture(GL_TEXTURE_2D, last_texture); + glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer); + glBindVertexArray(last_vertex_array); + + return true; +} + +void ImGuiRenderer::newFrame() +{ + if (!g_FontTexture) + createDeviceObjects(); + + ImGuiIO& io = ImGui::GetIO(); + + // Setup display size (every frame to accommodate for window resizing) + io.DisplaySize = ImVec2(m_window->size().width(), m_window->size().height()); + io.DisplayFramebufferScale = ImVec2(m_window->devicePixelRatio(), m_window->devicePixelRatio()); + + // Setup time step + double current_time = QDateTime::currentMSecsSinceEpoch() / double(1000); + 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 (m_window->isActive()) + { + auto pos = m_window->mapFromGlobal(QCursor::pos()); + io.MousePos = ImVec2(pos.x(), pos.y()); // Mouse position in screen coordinates (set to -1,-1 if no mouse / on another screen, etc.) + } + else + { + io.MousePos = ImVec2(-1,-1); + } + + for (int i = 0; i < 3; i++) + { + io.MouseDown[i] = g_MousePressed[i]; + } + + io.MouseWheelH = g_MouseWheelH; + io.MouseWheel = g_MouseWheel; + g_MouseWheelH = 0; + g_MouseWheel = 0; + + // Hide OS mouse cursor if ImGui is drawing it + // glfwSetInputMode(g_Window, GLFW_CURSOR, io.MouseDrawCursor ? GLFW_CURSOR_HIDDEN : GLFW_CURSOR_NORMAL); + + // Start the frame + ImGui::NewFrame(); +} + +void ImGuiRenderer::onMousePressedChange(QMouseEvent *event) +{ + g_MousePressed[0] = event->buttons() & Qt::LeftButton; + g_MousePressed[1] = event->buttons() & Qt::RightButton; + g_MousePressed[2] = event->buttons() & Qt::MiddleButton; +} + +void ImGuiRenderer::onWheel(QWheelEvent *event) +{ + // 5 lines per unit + g_MouseWheelH += event->pixelDelta().x() / (ImGui::GetTextLineHeight()); + g_MouseWheel += event->pixelDelta().y() / (5.0 * ImGui::GetTextLineHeight()); +} + +void ImGuiRenderer::onKeyPressRelease(QKeyEvent *event) +{ + ImGuiIO& io = ImGui::GetIO(); + if (keyMap.contains(event->key())) { + io.KeysDown[keyMap[event->key()]] = event->type() == QEvent::KeyPress; + } + + if (event->type() == QEvent::KeyPress) { + QString text = event->text(); + if (text.size() == 1) { + io.AddInputCharacter(text.at(0).unicode()); + } + } + +#ifdef Q_OS_MAC + io.KeyCtrl = event->modifiers() & Qt::MetaModifier; + io.KeyShift = event->modifiers() & Qt::ShiftModifier; + io.KeyAlt = event->modifiers() & Qt::AltModifier; + io.KeySuper = event->modifiers() & Qt::ControlModifier; // Comamnd key +#else + io.KeyCtrl = event->modifiers() & Qt::ControlModifier; + io.KeyShift = event->modifiers() & Qt::ShiftModifier; + io.KeyAlt = event->modifiers() & Qt::AltModifier; + io.KeySuper = event->modifiers() & Qt::MetaModifier; +#endif +} + +bool ImGuiRenderer::eventFilter(QObject *watched, QEvent *event) +{ + switch (event->type()) { + case QEvent::MouseButtonPress: + case QEvent::MouseButtonRelease: + this->onMousePressedChange(static_cast<QMouseEvent *>(event)); + break; + case QEvent::Wheel: + this->onWheel(static_cast<QWheelEvent *>(event)); + break; + case QEvent::KeyPress: + case QEvent::KeyRelease: + this->onKeyPressRelease(static_cast<QKeyEvent *>(event)); + break; + default: + break; + } + return QObject::eventFilter(watched, event); +} + +ImGuiRenderer* ImGuiRenderer::instance() { + static ImGuiRenderer* instance = nullptr; + if (!instance) { + instance = new ImGuiRenderer(); + } + return instance; +} + +} diff --git a/3rdparty/qtimgui/ImGuiRenderer.h b/3rdparty/qtimgui/ImGuiRenderer.h new file mode 100644 index 00000000..ca69ffaa --- /dev/null +++ b/3rdparty/qtimgui/ImGuiRenderer.h @@ -0,0 +1,58 @@ +#pragma once + +#include <QOpenGLExtraFunctions> +#include <QObject> +#include <QPoint> +#include <imgui.h> +#include <memory> + +class QMouseEvent; +class QWheelEvent; +class QKeyEvent; + +namespace QtImGui { + +class WindowWrapper { +public: + virtual ~WindowWrapper() {} + virtual void installEventFilter(QObject *object) = 0; + virtual QSize size() const = 0; + virtual qreal devicePixelRatio() const = 0; + virtual bool isActive() const = 0; + virtual QPoint mapFromGlobal(const QPoint &p) const = 0; +}; + +class ImGuiRenderer : public QObject, QOpenGLExtraFunctions { + Q_OBJECT +public: + void initialize(WindowWrapper *window); + void newFrame(); + + bool eventFilter(QObject *watched, QEvent *event); + + static ImGuiRenderer *instance(); + +private: + ImGuiRenderer() {} + + void onMousePressedChange(QMouseEvent *event); + void onWheel(QWheelEvent *event); + void onKeyPressRelease(QKeyEvent *event); + + void renderDrawList(ImDrawData *draw_data); + bool createFontsTexture(); + bool createDeviceObjects(); + + std::unique_ptr<WindowWrapper> m_window; + double g_Time = 0.0f; + bool g_MousePressed[3] = { false, false, false }; + float g_MouseWheel; + float g_MouseWheelH; + GLuint g_FontTexture = 0; + int g_ShaderHandle = 0, g_VertHandle = 0, g_FragHandle = 0; + int g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0; + int g_AttribLocationPosition = 0, g_AttribLocationUV = 0, g_AttribLocationColor = 0; + unsigned int g_VboHandle = 0, g_VaoHandle = 0, g_ElementsHandle = 0; +}; + +} diff --git a/3rdparty/qtimgui/LICENSE b/3rdparty/qtimgui/LICENSE new file mode 100644 index 00000000..7c7077fc --- /dev/null +++ b/3rdparty/qtimgui/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2017 Ryohei Ikegami + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/3rdparty/qtimgui/QtImGui.cpp b/3rdparty/qtimgui/QtImGui.cpp new file mode 100644 index 00000000..97205389 --- /dev/null +++ b/3rdparty/qtimgui/QtImGui.cpp @@ -0,0 +1,78 @@ +#include "QtImGui.h" +#include "ImGuiRenderer.h" +#include <QWindow> +#ifdef QT_WIDGETS_LIB +#include <QWidget> +#endif + +namespace QtImGui { + +#ifdef QT_WIDGETS_LIB + +namespace { + +class QWidgetWindowWrapper : public WindowWrapper { +public: + QWidgetWindowWrapper(QWidget *w) : w(w) {} + void installEventFilter(QObject *object) override { + return w->installEventFilter(object); + } + QSize size() const override { + return w->size(); + } + qreal devicePixelRatio() const override { + return w->devicePixelRatioF(); + } + bool isActive() const override { + return w->isActiveWindow(); + } + QPoint mapFromGlobal(const QPoint &p) const override { + return w->mapFromGlobal(p); + } +private: + QWidget *w; +}; + +} + +void initialize(QWidget *window) { + ImGuiRenderer::instance()->initialize(new QWidgetWindowWrapper(window)); +} + +#endif + +namespace { + +class QWindowWindowWrapper : public WindowWrapper { +public: + QWindowWindowWrapper(QWindow *w) : w(w) {} + void installEventFilter(QObject *object) override { + return w->installEventFilter(object); + } + QSize size() const override { + return w->size(); + } + qreal devicePixelRatio() const override { + return w->devicePixelRatio(); + } + bool isActive() const override { + return w->isActive(); + } + QPoint mapFromGlobal(const QPoint &p) const override { + return w->mapFromGlobal(p); + } +private: + QWindow *w; +}; + +} + +void initialize(QWindow *window) { + ImGuiRenderer::instance()->initialize(new QWindowWindowWrapper(window)); +} + +void newFrame() { + ImGuiRenderer::instance()->newFrame(); +} + +} diff --git a/3rdparty/qtimgui/QtImGui.h b/3rdparty/qtimgui/QtImGui.h new file mode 100644 index 00000000..337e67c0 --- /dev/null +++ b/3rdparty/qtimgui/QtImGui.h @@ -0,0 +1,15 @@ +#pragma once + +class QWidget; +class QWindow; + +namespace QtImGui { + +#ifdef QT_WIDGETS_LIB +void initialize(QWidget *window); +#endif + +void initialize(QWindow *window); +void newFrame(); + +} diff --git a/3rdparty/qtimgui/README.md b/3rdparty/qtimgui/README.md new file mode 100644 index 00000000..16a46f55 --- /dev/null +++ b/3rdparty/qtimgui/README.md @@ -0,0 +1,38 @@ +# QtImGui + +Qt (QOpenGLWidget / QOpenGLWindow) backend for [ImGui](https://github.com/ocornut/imgui) + +It enables ImGui to run in QOpenGLWidget / QOpenGLWindow. + +[](https://gyazo.com/eb68699c96b9147cca3d5ea9fadfc263) + +## How to use + +* Add QtImGui sources and headers to your project + * If you are using git submodule, run `git submodule update --init --recursive` to ensure that the inner submodule is initialized as well. +* Add `include(path/to/qtimgui.pri)` to youre `.pro` file +* Subclass `QOpenGLWindow` or `QOpenGLWidget` and: + +```cpp +class DemoWindow : public QOpenGLWindow +{ +protected: + void initializeGL() override + { + QtImGui::initialize(this); + } + void paintGL() override + { + // you can do custom GL rendering as well in paintGL + + QtImGui::newFrame(); + + ImGui::Text("Hello"); + // more widgets... + + ImGui::Render(); + } +}; +``` + +See [QOpenGLWidget example](demo-widget/demo-widget.cpp) and [QOpenGLWindow example](/demo-window/demo-window.cpp) for details. diff --git a/3rdparty/qtimgui/demo-widget/demo-widget.cpp b/3rdparty/qtimgui/demo-widget/demo-widget.cpp new file mode 100644 index 00000000..f0c44bef --- /dev/null +++ b/3rdparty/qtimgui/demo-widget/demo-widget.cpp @@ -0,0 +1,85 @@ +#include <QtImGui.h> +#include <imgui.h> +#include <QApplication> +#include <QTimer> +#include <QSurfaceFormat> +#include <QOpenGLWidget> +#include <QOpenGLExtraFunctions> + +class DemoWindow : public QOpenGLWidget, private QOpenGLExtraFunctions +{ +protected: + void initializeGL() override + { + initializeOpenGLFunctions(); + QtImGui::initialize(this); + } + void paintGL() override + { + QtImGui::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" + { + static float f = 0.0f; + ImGui::Text("Hello, world!"); + ImGui::SliderFloat("float", &f, 0.0f, 1.0f); + ImGui::ColorEdit3("clear color", (float*)&clear_color); + if (ImGui::Button("Test Window")) show_test_window ^= 1; + if (ImGui::Button("Another Window")) show_another_window ^= 1; + ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); + } + + // 2. Show another simple window, this time using an explicit Begin/End pair + if (show_another_window) + { + ImGui::SetNextWindowSize(ImVec2(200,100), ImGuiSetCond_FirstUseEver); + ImGui::Begin("Another Window", &show_another_window); + ImGui::Text("Hello"); + ImGui::End(); + } + + // 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow() + if (show_test_window) + { + ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCond_FirstUseEver); + ImGui::ShowTestWindow(); + } + + // Do render before ImGui UI is rendered + glViewport(0, 0, width(), height()); + glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w); + glClear(GL_COLOR_BUFFER_BIT); + + ImGui::Render(); + } + +private: + bool show_test_window = true; + bool show_another_window = false; + ImVec4 clear_color = ImColor(114, 144, 154); +}; + +int main(int argc, char *argv[]) +{ + // Use OpenGL 3 Core Profile + QSurfaceFormat glFormat; + glFormat.setVersion(3, 3); + glFormat.setProfile(QSurfaceFormat::CoreProfile); + QSurfaceFormat::setDefaultFormat(glFormat); + + QApplication a(argc, argv); + + // Show window + DemoWindow w; + w.setWindowTitle("QtImGui widget example"); + w.resize(1280, 720); + w.show(); + + // Update at 60 fps + QTimer timer; + QObject::connect(&timer, SIGNAL(timeout()), &w, SLOT(update())); + timer.start(16); + + return a.exec(); +} diff --git a/3rdparty/qtimgui/demo-widget/demo-widget.pro b/3rdparty/qtimgui/demo-widget/demo-widget.pro new file mode 100644 index 00000000..d3492da9 --- /dev/null +++ b/3rdparty/qtimgui/demo-widget/demo-widget.pro @@ -0,0 +1,8 @@ +QT += core gui widgets +TARGET = demo-widget +TEMPLATE = app + +include(../qtimgui.pri) + +SOURCES += \ + demo-widget.cpp diff --git a/3rdparty/qtimgui/demo-window/demo-window.cpp b/3rdparty/qtimgui/demo-window/demo-window.cpp new file mode 100644 index 00000000..b86c5c85 --- /dev/null +++ b/3rdparty/qtimgui/demo-window/demo-window.cpp @@ -0,0 +1,85 @@ +#include <QtImGui.h> +#include <imgui.h> +#include <QGuiApplication> +#include <QTimer> +#include <QSurfaceFormat> +#include <QOpenGLWindow> +#include <QOpenGLExtraFunctions> + +class DemoWindow : public QOpenGLWindow, private QOpenGLExtraFunctions +{ +protected: + void initializeGL() override + { + initializeOpenGLFunctions(); + QtImGui::initialize(this); + } + void paintGL() override + { + QtImGui::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" + { + static float f = 0.0f; + ImGui::Text("Hello, world!"); + ImGui::SliderFloat("float", &f, 0.0f, 1.0f); + ImGui::ColorEdit3("clear color", (float*)&clear_color); + if (ImGui::Button("Test Window")) show_test_window ^= 1; + if (ImGui::Button("Another Window")) show_another_window ^= 1; + ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); + } + + // 2. Show another simple window, this time using an explicit Begin/End pair + if (show_another_window) + { + ImGui::SetNextWindowSize(ImVec2(200,100), ImGuiSetCond_FirstUseEver); + ImGui::Begin("Another Window", &show_another_window); + ImGui::Text("Hello"); + ImGui::End(); + } + + // 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow() + if (show_test_window) + { + ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCond_FirstUseEver); + ImGui::ShowTestWindow(); + } + + // Do render before ImGui UI is rendered + glViewport(0, 0, width(), height()); + glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w); + glClear(GL_COLOR_BUFFER_BIT); + + ImGui::Render(); + } + +private: + bool show_test_window = true; + bool show_another_window = false; + ImVec4 clear_color = ImColor(114, 144, 154); +}; + +int main(int argc, char *argv[]) +{ + // Use OpenGL 3 Core Profile + QSurfaceFormat glFormat; + glFormat.setVersion(3, 3); + glFormat.setProfile(QSurfaceFormat::CoreProfile); + QSurfaceFormat::setDefaultFormat(glFormat); + + QGuiApplication a(argc, argv); + + // Show window + DemoWindow w; + w.setTitle("QtImGui window example"); + w.resize(1280, 720); + w.show(); + + // Update at 60 fps + QTimer timer; + QObject::connect(&timer, SIGNAL(timeout()), &w, SLOT(update())); + timer.start(16); + + return a.exec(); +} diff --git a/3rdparty/qtimgui/demo-window/demo-window.pro b/3rdparty/qtimgui/demo-window/demo-window.pro new file mode 100644 index 00000000..92032c4a --- /dev/null +++ b/3rdparty/qtimgui/demo-window/demo-window.pro @@ -0,0 +1,8 @@ +QT += core gui +TARGET = demo-window +TEMPLATE = app + +include(../qtimgui.pri) + +SOURCES += \ + demo-window.cpp diff --git a/3rdparty/qtimgui/qtimgui.pri b/3rdparty/qtimgui/qtimgui.pri new file mode 100644 index 00000000..21ac0813 --- /dev/null +++ b/3rdparty/qtimgui/qtimgui.pri @@ -0,0 +1,13 @@ + +SOURCES += \ + $$PWD/imgui/imgui_draw.cpp \ + $$PWD/imgui/imgui.cpp \ + $$PWD/imgui/imgui_demo.cpp \ + $$PWD/ImGuiRenderer.cpp \ + $$PWD/QtImGui.cpp + +INCLUDEPATH += $$PWD/imgui $$PWD + +HEADERS += \ + $$PWD/ImGuiRenderer.h \ + $$PWD/QtImGui.h diff --git a/3rdparty/qtimgui/qtimgui.pro b/3rdparty/qtimgui/qtimgui.pro new file mode 100644 index 00000000..0f1791fc --- /dev/null +++ b/3rdparty/qtimgui/qtimgui.pro @@ -0,0 +1,3 @@ +TEMPLATE = subdirs + +SUBDIRS += demo-widget demo-window |