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Use ImGui Manager to create contexts

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This commit is contained in:
Dan Paulat 2022-11-27 11:01:35 -06:00
parent ee2ec329da
commit 0f8b8d73f9
3 changed files with 37 additions and 80 deletions
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32
scwx-qt/source/scwx/qt/ui/imgui_debug_widget.cpp
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@ -1,4 +1,5 @@
#include <scwx/qt/ui/imgui_debug_widget.hpp>
#include <scwx/qt/manager/imgui_manager.hpp>
#include <imgui.h>
#include <backends/imgui_impl_opengl3.h>
@ -16,17 +17,12 @@ static const std::string logPrefix_ = "scwx::qt::ui::imgui_debug_widget";
class ImGuiDebugWidgetImpl
{
public:
explicit ImGuiDebugWidgetImpl(ImGuiDebugWidget* self) :
self_ {self}, context_ {ImGui::CreateContext()}
explicit ImGuiDebugWidgetImpl(ImGuiDebugWidget* self) : self_ {self}
{
// Set ImGui Context
ImGui::SetCurrentContext(context_);
// ImGui Configuration
auto& io = ImGui::GetIO();
// Disable automatic configuration loading/saving
io.IniFilename = nullptr;
// Create ImGui Context
static size_t currentIndex_ {0u};
contextName_ = std::format("ImGui Debug {}", ++currentIndex_);
context_ = manager::ImGuiManager::Instance().CreateContext(contextName_);
// Initialize ImGui Qt backend
ImGui_ImplQt_Init();
@ -39,15 +35,22 @@ public:
ImGui::SetCurrentContext(context_);
// Shutdown ImGui Context
ImGui_ImplOpenGL3_Shutdown();
if (imGuiRendererInitialized_)
{
ImGui_ImplOpenGL3_Shutdown();
}
ImGui_ImplQt_Shutdown();
ImGui::DestroyContext(context_);
// Destroy ImGui Context
manager::ImGuiManager::Instance().DestroyContext(contextName_);
}
ImGuiDebugWidget* self_;
ImGuiContext* context_;
std::string contextName_;
bool firstRender_ {true};
bool imGuiRendererInitialized_ {false};
};
ImGuiDebugWidget::ImGuiDebugWidget(QWidget* parent) :
@ -57,6 +60,8 @@ ImGuiDebugWidget::ImGuiDebugWidget(QWidget* parent) :
setFocusPolicy(Qt::StrongFocus);
}
ImGuiDebugWidget::~ImGuiDebugWidget() {}
void ImGuiDebugWidget::initializeGL()
{
makeCurrent();
@ -64,6 +69,7 @@ void ImGuiDebugWidget::initializeGL()
// Initialize ImGui OpenGL3 backend
ImGui::SetCurrentContext(p->context_);
ImGui_ImplOpenGL3_Init();
p->imGuiRendererInitialized_ = true;
}
void ImGuiDebugWidget::paintGL()
@ -93,8 +99,6 @@ void ImGuiDebugWidget::paintGL()
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
}
ImGuiDebugWidget::~ImGuiDebugWidget() {}
} // namespace ui
} // namespace qt
} // namespace scwx