C++ (Cpp) gtk_source_gutter_renderer_get_alignment_mode 예제들

예제 #1

파일: gtksourcegutterrenderertext.c 프로젝트: GNOME/gtksourceview

static void
gutter_renderer_text_draw (GtkSourceGutterRenderer      *renderer,
			   cairo_t                      *cr,
			   GdkRectangle                 *background_area,
			   GdkRectangle                 *cell_area,
			   GtkTextIter                  *start,
			   GtkTextIter                  *end,
			   GtkSourceGutterRendererState  state)
{
	GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
	GtkTextView *view;
	gint width;
	gint height;
	gfloat xalign;
	gfloat yalign;
	GtkSourceGutterRendererAlignmentMode mode;
	gint x = 0;
	gint y = 0;
	GtkStyleContext *context;

	/* Chain up to draw background */
	if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw != NULL)
	{
		GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw (renderer,
												       cr,
												       background_area,
												       cell_area,
												       start,
												       end,
												       state);
	}

	view = gtk_source_gutter_renderer_get_view (renderer);

	if (text->priv->is_markup)
	{
		pango_layout_set_markup (text->priv->cached_layout,
		                         text->priv->text,
		                         -1);
	}
	else
	{
		pango_layout_set_text (text->priv->cached_layout,
		                       text->priv->text,
		                       -1);
	}

	pango_layout_get_pixel_size (text->priv->cached_layout, &width, &height);

	gtk_source_gutter_renderer_get_alignment (renderer,
	                                          &xalign,
	                                          &yalign);

	/* Avoid calculations if we don't wrap text */
	if (gtk_text_view_get_wrap_mode (view) == GTK_WRAP_NONE)
	{
		mode = GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL;
	}
	else
	{
		mode = gtk_source_gutter_renderer_get_alignment_mode (renderer);
	}

	switch (mode)
	{
		case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL:
			x = cell_area->x + (cell_area->width - width) * xalign;
			y = cell_area->y + (cell_area->height - height) * yalign;
			break;

		case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_FIRST:
			center_on (view,
			           cell_area,
			           start,
			           width,
			           height,
			           xalign,
			           yalign,
			           &x,
			           &y);
			break;

		case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_LAST:
			center_on (view,
			           cell_area,
			           end,
			           width,
			           height,
			           xalign,
			           yalign,
			           &x,
			           &y);
			break;

		default:
			g_assert_not_reached ();
	}

	context = gtk_widget_get_style_context (GTK_WIDGET (view));
	gtk_render_layout (context, cr, x, y, text->priv->cached_layout);
}

예제 #2

파일: gtksourcegutterrenderertext.c 프로젝트: culots/gtksourceview

static void
gutter_renderer_text_draw (GtkSourceGutterRenderer      *renderer,
                           cairo_t                      *cr,
                           GdkRectangle                 *background_area,
                           GdkRectangle                 *cell_area,
                           GtkTextIter                  *start,
                           GtkTextIter                  *end,
                           GtkSourceGutterRendererState  state)
{
	GtkSourceGutterRendererText *text = GTK_SOURCE_GUTTER_RENDERER_TEXT (renderer);
	gint width;
	gint height;
	PangoAttrList *attr_list;
	gfloat xalign;
	gfloat yalign;
	GtkSourceGutterRendererAlignmentMode mode;
	GtkTextView *view;
	gint x = 0;
	gint y = 0;
	GtkStyleContext *context;

	/* Chain up to draw background */
	if (GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw != NULL)
	{
		GTK_SOURCE_GUTTER_RENDERER_CLASS (gtk_source_gutter_renderer_text_parent_class)->draw (renderer,
												       cr,
												       background_area,
												       cell_area,
												       start,
												       end,
												       state);
	}

	view = gtk_source_gutter_renderer_get_view (renderer);

	if (text->priv->is_markup)
	{
		pango_layout_set_markup (text->priv->cached_layout,
		                         text->priv->text,
		                         -1);
	}
	else
	{
		pango_layout_set_text (text->priv->cached_layout,
		                       text->priv->text,
		                       -1);
	}

	attr_list = pango_layout_get_attributes (text->priv->cached_layout);

	if (!attr_list)
	{
		pango_layout_set_attributes (text->priv->cached_layout,
		                             pango_attr_list_copy (text->priv->cached_attr_list));
	}
	else
	{
		pango_attr_list_insert (attr_list,
		                        pango_attribute_copy (text->priv->fg_attr));
	}

	pango_layout_get_pixel_size (text->priv->cached_layout, &width, &height);

	gtk_source_gutter_renderer_get_alignment (renderer,
	                                          &xalign,
	                                          &yalign);

	mode = gtk_source_gutter_renderer_get_alignment_mode (renderer);

	switch (mode)
	{
		case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_CELL:
			x = cell_area->x + (cell_area->width - width) * xalign;
			y = cell_area->y + (cell_area->height - height) * yalign;
		break;
		case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_FIRST:
			center_on (renderer,
			           cell_area,
			           start,
			           width,
			           height,
			           xalign,
			           yalign,
			           &x,
			           &y);
		break;
		case GTK_SOURCE_GUTTER_RENDERER_ALIGNMENT_MODE_LAST:
			center_on (renderer,
			           cell_area,
			           end,
			           width,
			           height,
			           xalign,
			           yalign,
			           &x,
			           &y);
		break;
	}

	context = gtk_widget_get_style_context (GTK_WIDGET (view));
	gtk_render_layout (context, cr, x, y, text->priv->cached_layout);
}