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#include "renderer/unix/pango_wrapper.h"

#include "base/coordinates.h"

namespace mozc {
namespace renderer {
namespace gtk {

PangoLayoutWrapper::PangoLayoutWrapper(PangoContext *context)
  : layout_(pango_layout_new(context)) {
}

PangoLayoutWrapper::~PangoLayoutWrapper() {
  g_object_unref(layout_);
}

void PangoLayoutWrapper::SetText(const string &text) {
  pango_layout_set_text(layout_, text.c_str(), text.length());
}

void PangoLayoutWrapper::SetAlignment(PangoAlignment align) {
  pango_layout_set_alignment(layout_, align);
}

void PangoLayoutWrapper::SetAttributes(PangoAttrList *attribute) {
  pango_layout_set_attributes(layout_, attribute);
}

void PangoLayoutWrapper::SetFontDescription(
    const PangoFontDescription *font_description) {
  pango_layout_set_font_description(layout_, font_description);
}

void PangoLayoutWrapper::SetWidth(int width) {
  pango_layout_set_width(layout_, width);
}

void PangoLayoutWrapper::SetHeight(int height) {
  pango_layout_set_height(layout_, height);
}

Size PangoLayoutWrapper::GetPixelSize() const {
  Size actual_size;
  pango_layout_get_pixel_size(layout_, &actual_size.width, &actual_size.height);
  return actual_size;
}

PangoLayout *PangoLayoutWrapper::GetPangoLayout() {
  return layout_;
}

void PangoWrapper::RendererDrawLayout(PangoLayoutWrapperInterface *layout,
                                      int x, int y) {
  pango_renderer_draw_layout(renderer_, layout->GetPangoLayout(), x, y);
}

PangoAttrList *PangoWrapper::CopyAttributes(PangoAttrList *attribute) {
  return pango_attr_list_copy(attribute);
}

void PangoWrapper::AttributesUnref(PangoAttrList *attribute) {
  pango_attr_list_unref(attribute);
}

PangoContext *PangoWrapper::GetContext() {
  return context_;
}

PangoWrapper::PangoWrapper(GdkDrawable *drawable)
  : gc_(gdk_gc_new(drawable)) {
  GdkScreen *screen = gdk_drawable_get_screen(drawable);
  renderer_ = gdk_pango_renderer_new(screen);
  gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer_), drawable);
  gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer_), gc_);
  context_ = gdk_pango_context_get();
}

PangoWrapper::~PangoWrapper() {
  gdk_pango_renderer_set_override_color(GDK_PANGO_RENDERER(renderer_),
                                        PANGO_RENDER_PART_FOREGROUND, NULL);
  gdk_pango_renderer_set_drawable(GDK_PANGO_RENDERER(renderer_), NULL);
  gdk_pango_renderer_set_gc(GDK_PANGO_RENDERER(renderer_), NULL);
  g_object_unref(gc_);
  g_object_unref(context_);
}

}  // namespace gtk
}  // namespace renderer
}  // namespace mozc