add qtimgui renderer library

1 files changed, 78 insertions, 0 deletions

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();
+}
+
+}