XCEngine/editor/src/panels/SceneViewPanel.cpp

#include "Actions/ActionRouting.h"
#include "Core/IEditorContext.h"
#include "SceneViewPanel.h"
#include "ViewportPanelContent.h"
#include "UI/UI.h"
#include <imgui.h>

namespace XCEngine {
namespace Editor {

SceneViewPanel::SceneViewPanel() : Panel("Scene") {}

void SceneViewPanel::Render() {
    UI::PanelWindowScope panel(m_name.c_str());
    if (!panel.IsOpen()) {
        return;
    }

    const ViewportPanelContentResult content = RenderViewportPanelContent(*m_context, EditorViewportKind::Scene);
    if (IViewportHostService* viewportHostService = m_context->GetViewportHostService()) {
        const ImGuiIO& io = ImGui::GetIO();
        if (!m_orbitDragging && content.hovered && ImGui::IsMouseClicked(ImGuiMouseButton_Right)) {
            m_orbitDragging = true;
        }
        if (!m_panDragging && content.hovered && ImGui::IsMouseClicked(ImGuiMouseButton_Middle)) {
            m_panDragging = true;
        }

        if (m_orbitDragging && !ImGui::IsMouseDown(ImGuiMouseButton_Right)) {
            m_orbitDragging = false;
        }
        if (m_panDragging && !ImGui::IsMouseDown(ImGuiMouseButton_Middle)) {
            m_panDragging = false;
        }

        SceneViewportInput input = {};
        input.viewportSize = content.availableSize;
        input.hovered = content.hovered;
        input.focused = content.focused;
        input.mouseWheel = content.hovered ? io.MouseWheel : 0.0f;
        input.orbiting = m_orbitDragging;
        input.panning = m_panDragging;
        input.focusSelectionRequested =
            content.focused && !io.WantTextInput && ImGui::IsKeyPressed(ImGuiKey_F, false);

        if (m_orbitDragging || m_panDragging) {
            input.mouseDelta = io.MouseDelta;
        }

        viewportHostService->UpdateSceneViewInput(*m_context, input);
    }

    Actions::ObserveInactiveActionRoute(*m_context);
}

}
}