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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// TODO(nona): Implement delay rendering.

#ifndef MOZC_RENDERER_UNIX_INFOLIST_WINDOW_H_
#define MOZC_RENDERER_UNIX_INFOLIST_WINDOW_H_

#include <gtk/gtk.h>

#include <memory>

#include "base/coordinates.h"
#include "renderer/renderer_command.pb.h"
#include "renderer/renderer_style.pb.h"
#include "renderer/unix/cairo_factory_interface.h"
#include "renderer/unix/draw_tool_interface.h"
#include "renderer/unix/gtk_window_base.h"
#include "renderer/unix/text_renderer_interface.h"
#include "testing/base/public/gunit_prod.h"

namespace mozc {
namespace renderer {
namespace gtk {

class InfolistWindow : public GtkWindowBase {
 public:
  // GtkWindowBase(InfolistWindow) has ownership of GtkWrapperInterface *gtk;
  explicit InfolistWindow(
      TextRendererInterface *text_renderer,
      DrawToolInterface *draw_tool,
      GtkWrapperInterface *gtk,
      CairoFactoryInterface *cairo_factory);
  virtual ~InfolistWindow() {}

  virtual Size Update(const commands::Candidates &candidates);
  virtual void Initialize();
  // This function is not used in infolist window.
  virtual Rect GetCandidateColumnInClientCord() const;
  virtual void ReloadFontConfig(const string &font_description);

 protected:
  virtual bool OnPaint(GtkWidget *widget, GdkEventExpose *event);

 private:
  struct RenderingRowRects {
    Rect title_rect;
    Rect title_back_rect;
    Rect desc_rect;
    Rect desc_back_rect;
    Rect whole_rect;
  };

  void Draw();

  // Draws specified description row and returns it's height.
  int DrawRow(int row, int ypos);

  // Gets target rendering rects.
  RenderingRowRects GetRowRects(int row, int ypos);

  // Draws caption string and returns it's height.
  int DrawCaption();

  // Draws infolist window frame line.
  void DrawFrame(int height);

  // Calculate background and text displaying area based on style, text font and
  // top position.
  void GetRenderingRects(const renderer::RendererStyle::TextStyle &style,
                         const string &text,
                         FontSpecInterface::FONT_TYPE font_type,
                         int top,
                         Rect *background_rect,
                         Rect *textarea_rect);

  friend class InfolistWindowTest;
  FRIEND_TEST(InfolistWindowTest, DrawFrameTest);
  FRIEND_TEST(InfolistWindowTest, DrawRowTest);
  FRIEND_TEST(InfolistWindowTest, GetRowRectsTest);
  FRIEND_TEST(InfolistWindowTest, DrawCaptionTest);
  FRIEND_TEST(InfolistWindowTest, GetRenderingRectsTest);

  commands::Candidates candidates_;
  std::unique_ptr<TextRendererInterface> text_renderer_;
  std::unique_ptr<RendererStyle> style_;
  std::unique_ptr<DrawToolInterface> draw_tool_;
  std::unique_ptr<CairoFactoryInterface> cairo_factory_;
  DISALLOW_COPY_AND_ASSIGN(InfolistWindow);
};

}  // namespace gtk
}  // namespace renderer
}  // namespace mozc
#endif  // MOZC_RENDERER_UNIX_INFOLIST_WINDOW_H_