* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.Free
*
* Original Tk license:
*
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
+#define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
+#include "config.h"
#include "gtktextdisplay.h"
-#include "gtktextiterprivate.h"
+#include "gtkwidgetprivate.h"
+#include "gtkstylecontextprivate.h"
+#include "gtkintl.h"
-#include <pango/pango.h>
+/* DO NOT go putting private headers in here. This file should only
+ * use the semi-public headers, as with gtktextview.c.
+ */
+
+#define GTK_TYPE_TEXT_RENDERER (_gtk_text_renderer_get_type())
+#define GTK_TEXT_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GTK_TYPE_TEXT_RENDERER, GtkTextRenderer))
+#define GTK_IS_TEXT_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GTK_TYPE_TEXT_RENDERER))
+#define GTK_TEXT_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_RENDERER, GtkTextRendererClass))
+#define GTK_IS_TEXT_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_RENDERER))
+#define GTK_TEXT_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_RENDERER, GtkTextRendererClass))
-typedef struct _GtkTextRenderState GtkTextRenderState;
+typedef struct _GtkTextRenderer GtkTextRenderer;
+typedef struct _GtkTextRendererClass GtkTextRendererClass;
-struct _GtkTextRenderState
+enum {
+ NORMAL,
+ SELECTED,
+ CURSOR
+};
+
+struct _GtkTextRenderer
{
+ PangoRenderer parent_instance;
+
GtkWidget *widget;
+ cairo_t *cr;
+
+ GdkRGBA *error_color; /* Error underline color for this widget */
+ GList *widgets; /* widgets encountered when drawing */
+
+ GdkRGBA rgba[4];
+ guint8 rgba_set[4];
- GtkTextAppearance *last_appearance;
- GtkTextAppearance *last_bg_appearance;
- GdkGC *fg_gc;
- GdkGC *bg_gc;
- GdkRectangle clip_rect;
+ guint state : 2;
};
-static void get_item_properties (PangoItem *item,
- GtkTextAppearance **appearance);
-static GdkRegion *get_selected_clip (GtkTextRenderState *render_state,
- PangoLayout *layout,
- PangoLayoutLine *line,
- int x,
- int y,
- int height,
- int start_index,
- int end_index);
-
-static GtkTextRenderState *
-gtk_text_render_state_new (GtkWidget *widget,
- GdkDrawable *drawable,
- GdkRectangle *clip_rect)
+struct _GtkTextRendererClass
{
- GtkTextRenderState *state = g_new0 (GtkTextRenderState, 1);
+ PangoRendererClass parent_class;
+};
- state->widget = widget;
- state->fg_gc = gdk_gc_new (drawable);
- state->bg_gc = gdk_gc_new (drawable);
- state->clip_rect = *clip_rect;
+GType _gtk_text_renderer_get_type (void);
- return state;
-}
+G_DEFINE_TYPE (GtkTextRenderer, _gtk_text_renderer, PANGO_TYPE_RENDERER)
static void
-gtk_text_render_state_destroy (GtkTextRenderState *state)
+text_renderer_set_rgba (GtkTextRenderer *text_renderer,
+ PangoRenderPart part,
+ const GdkRGBA *rgba)
{
- gdk_gc_unref (state->fg_gc);
- gdk_gc_unref (state->bg_gc);
+ PangoRenderer *renderer = PANGO_RENDERER (text_renderer);
+ PangoColor dummy = { 0, };
- g_free (state);
+ if (rgba)
+ {
+ text_renderer->rgba[part] = *rgba;
+ pango_renderer_set_color (renderer, part, &dummy);
+ }
+ else
+ pango_renderer_set_color (renderer, part, NULL);
+
+ text_renderer->rgba_set[part] = (rgba != NULL);
}
-static void
-gtk_text_render_state_set_color (GtkTextRenderState *state,
- GdkGC *gc,
- GdkColor *color)
+static GtkTextAppearance *
+get_item_appearance (PangoItem *item)
{
- gdk_colormap_alloc_color (gtk_widget_get_colormap (state->widget), color, FALSE, TRUE);
- gdk_gc_set_foreground (gc, color);
+ GSList *tmp_list = item->analysis.extra_attrs;
+
+ while (tmp_list)
+ {
+ PangoAttribute *attr = tmp_list->data;
+
+ if (attr->klass->type == gtk_text_attr_appearance_type)
+ return &((GtkTextAttrAppearance *)attr)->appearance;
+
+ tmp_list = tmp_list->next;
+ }
+
+ return NULL;
}
static void
-gtk_text_render_state_update (GtkTextRenderState *state,
- GtkTextAppearance *new_appearance)
+gtk_text_renderer_prepare_run (PangoRenderer *renderer,
+ PangoLayoutRun *run)
{
- if (!state->last_appearance ||
- !gdk_color_equal (&new_appearance->fg_color, &state->last_appearance->fg_color))
- gtk_text_render_state_set_color (state, state->fg_gc, &new_appearance->fg_color);
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+ GdkRGBA *bg_rgba = NULL;
+ GdkRGBA *fg_rgba = NULL;
+ GtkTextAppearance *appearance;
+
+ PANGO_RENDERER_CLASS (_gtk_text_renderer_parent_class)->prepare_run (renderer, run);
+
+ appearance = get_item_appearance (run->item);
+ g_assert (appearance != NULL);
+
+ context = gtk_widget_get_style_context (text_renderer->widget);
+ state = gtk_widget_get_state_flags (text_renderer->widget);
+
+ if (appearance->draw_bg && text_renderer->state == NORMAL)
+ bg_rgba = appearance->rgba[0];
+ else
+ bg_rgba = NULL;
+
+ text_renderer_set_rgba (text_renderer, PANGO_RENDER_PART_BACKGROUND, bg_rgba);
- if (!state->last_appearance ||
- new_appearance->fg_stipple != state->last_appearance->fg_stipple)
+ if (text_renderer->state == SELECTED)
{
- if (new_appearance->fg_stipple)
- {
- gdk_gc_set_fill (state->fg_gc, GDK_STIPPLED);
- gdk_gc_set_stipple (state->fg_gc, new_appearance->fg_stipple);
- }
- else
- {
- gdk_gc_set_fill (state->fg_gc, GDK_SOLID);
- }
- }
+ state |= GTK_STATE_FLAG_SELECTED;
- if (new_appearance->draw_bg)
+ gtk_style_context_get (context, state, "color", &fg_rgba, NULL);
+ }
+ else if (text_renderer->state == CURSOR && gtk_widget_has_focus (text_renderer->widget))
{
- if (!state->last_bg_appearance ||
- !gdk_color_equal (&new_appearance->bg_color, &state->last_bg_appearance->bg_color))
- gtk_text_render_state_set_color (state, state->bg_gc, &new_appearance->bg_color);
+ gtk_style_context_get (context, state,
+ "background-color", &fg_rgba,
+ NULL);
+ }
+ else
+ fg_rgba = appearance->rgba[1];
- if (!state->last_bg_appearance ||
- new_appearance->bg_stipple != state->last_bg_appearance->bg_stipple)
+ text_renderer_set_rgba (text_renderer, PANGO_RENDER_PART_FOREGROUND, fg_rgba);
+ text_renderer_set_rgba (text_renderer, PANGO_RENDER_PART_STRIKETHROUGH, fg_rgba);
+
+ if (appearance->underline == PANGO_UNDERLINE_ERROR)
+ {
+ if (!text_renderer->error_color)
{
- if (new_appearance->bg_stipple)
- {
- gdk_gc_set_fill (state->bg_gc, GDK_STIPPLED);
- gdk_gc_set_stipple (state->bg_gc, new_appearance->bg_stipple);
- }
- else
- {
- gdk_gc_set_fill (state->bg_gc, GDK_SOLID);
- }
+ GdkColor *color = NULL;
+
+ gtk_style_context_get_style (context,
+ "error-underline-color", &color,
+ NULL);
+
+ if (color)
+ {
+ GdkRGBA rgba;
+
+ rgba.red = color->red / 65535.;
+ rgba.green = color->green / 65535.;
+ rgba.blue = color->blue / 65535.;
+ rgba.alpha = 1;
+ gdk_color_free (color);
+
+ text_renderer->error_color = gdk_rgba_copy (&rgba);
+ }
+ else
+ {
+ static const GdkRGBA red = { 1, 0, 0, 1 };
+ text_renderer->error_color = gdk_rgba_copy (&red);
+ }
}
- state->last_bg_appearance = new_appearance;
+ text_renderer_set_rgba (text_renderer, PANGO_RENDER_PART_UNDERLINE, text_renderer->error_color);
}
+ else
+ text_renderer_set_rgba (text_renderer, PANGO_RENDER_PART_UNDERLINE, fg_rgba);
- state->last_appearance = new_appearance;
+ if (fg_rgba != appearance->rgba[1])
+ gdk_rgba_free (fg_rgba);
}
static void
-get_shape_extents (PangoLayoutRun *run,
- PangoRectangle *ink_rect,
- PangoRectangle *logical_rect)
+set_color (GtkTextRenderer *text_renderer,
+ PangoRenderPart part)
{
- GSList *tmp_list = run->item->extra_attrs;
-
- while (tmp_list)
- {
- PangoAttribute *attr = tmp_list->data;
+ cairo_save (text_renderer->cr);
- if (attr->klass->type == PANGO_ATTR_SHAPE)
- {
- if (logical_rect)
- *logical_rect = ((PangoAttrShape *)attr)->logical_rect;
+ if (text_renderer->rgba_set[part])
+ gdk_cairo_set_source_rgba (text_renderer->cr, &text_renderer->rgba[part]);
+}
- if (ink_rect)
- *ink_rect = ((PangoAttrShape *)attr)->ink_rect;
+static void
+unset_color (GtkTextRenderer *text_renderer)
+{
+ cairo_restore (text_renderer->cr);
+}
- return;
- }
+static void
+gtk_text_renderer_draw_glyphs (PangoRenderer *renderer,
+ PangoFont *font,
+ PangoGlyphString *glyphs,
+ int x,
+ int y)
+{
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
- tmp_list = tmp_list->next;
- }
+ set_color (text_renderer, PANGO_RENDER_PART_FOREGROUND);
- g_assert_not_reached ();
+ cairo_move_to (text_renderer->cr, (double)x / PANGO_SCALE, (double)y / PANGO_SCALE);
+ pango_cairo_show_glyph_string (text_renderer->cr, font, glyphs);
+
+ unset_color (text_renderer);
}
static void
-render_layout_line (GdkDrawable *drawable,
- GtkTextRenderState *render_state,
- PangoLayoutLine *line,
- GSList **shaped_pointer,
- int x,
- int y,
- gboolean selected)
+gtk_text_renderer_draw_glyph_item (PangoRenderer *renderer,
+ const char *text,
+ PangoGlyphItem *glyph_item,
+ int x,
+ int y)
{
- GSList *tmp_list = line->runs;
- PangoRectangle overall_rect;
- PangoRectangle logical_rect;
- PangoRectangle ink_rect;
- gint x_off = 0;
- GdkGC *fg_gc;
-
- pango_layout_line_get_extents (line, NULL, &overall_rect);
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
- while (tmp_list)
+ set_color (text_renderer, PANGO_RENDER_PART_FOREGROUND);
+
+ cairo_move_to (text_renderer->cr, (double)x / PANGO_SCALE, (double)y / PANGO_SCALE);
+ pango_cairo_show_glyph_item (text_renderer->cr, text, glyph_item);
+
+ unset_color (text_renderer);
+}
+
+static void
+gtk_text_renderer_draw_rectangle (PangoRenderer *renderer,
+ PangoRenderPart part,
+ int x,
+ int y,
+ int width,
+ int height)
+{
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+
+ set_color (text_renderer, part);
+
+ cairo_rectangle (text_renderer->cr,
+ (double)x / PANGO_SCALE, (double)y / PANGO_SCALE,
+ (double)width / PANGO_SCALE, (double)height / PANGO_SCALE);
+ cairo_fill (text_renderer->cr);
+
+ unset_color (text_renderer);
+}
+
+static void
+gtk_text_renderer_draw_trapezoid (PangoRenderer *renderer,
+ PangoRenderPart part,
+ double y1_,
+ double x11,
+ double x21,
+ double y2,
+ double x12,
+ double x22)
+{
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+ cairo_t *cr;
+ cairo_matrix_t matrix;
+
+ set_color (text_renderer, part);
+
+ cr = text_renderer->cr;
+
+ cairo_get_matrix (cr, &matrix);
+ matrix.xx = matrix.yy = 1.0;
+ matrix.xy = matrix.yx = 0.0;
+ cairo_set_matrix (cr, &matrix);
+
+ cairo_move_to (cr, x11, y1_);
+ cairo_line_to (cr, x21, y1_);
+ cairo_line_to (cr, x22, y2);
+ cairo_line_to (cr, x12, y2);
+ cairo_close_path (cr);
+
+ cairo_fill (cr);
+
+ unset_color (text_renderer);
+}
+
+static void
+gtk_text_renderer_draw_error_underline (PangoRenderer *renderer,
+ int x,
+ int y,
+ int width,
+ int height)
+{
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+
+ set_color (text_renderer, PANGO_RENDER_PART_UNDERLINE);
+
+ pango_cairo_show_error_underline (text_renderer->cr,
+ (double)x / PANGO_SCALE, (double)y / PANGO_SCALE,
+ (double)width / PANGO_SCALE, (double)height / PANGO_SCALE);
+
+ unset_color (text_renderer);
+}
+
+static void
+gtk_text_renderer_draw_shape (PangoRenderer *renderer,
+ PangoAttrShape *attr,
+ int x,
+ int y)
+{
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+
+ if (attr->data == NULL)
{
- PangoLayoutRun *run = tmp_list->data;
- GtkTextAppearance *appearance;
- gint risen_y;
- gint shaped_width_pixels = 0;
- gboolean need_ink = FALSE;
-
- tmp_list = tmp_list->next;
+ /* This happens if we have an empty widget anchor. Draw
+ * something empty-looking.
+ */
+ GdkRectangle shape_rect;
+ cairo_t *cr;
- get_item_properties (run->item, &appearance);
+ shape_rect.x = PANGO_PIXELS (x);
+ shape_rect.y = PANGO_PIXELS (y + attr->logical_rect.y);
+ shape_rect.width = PANGO_PIXELS (x + attr->logical_rect.width) - shape_rect.x;
+ shape_rect.height = PANGO_PIXELS (y + attr->logical_rect.y + attr->logical_rect.height) - shape_rect.y;
- g_assert (appearance != NULL);
-
- risen_y = y - PANGO_PIXELS (appearance->rise);
-
- if (selected)
- {
- fg_gc = render_state->widget->style->fg_gc[GTK_STATE_SELECTED];
- }
- else
- {
- gtk_text_render_state_update (render_state, appearance);
-
- fg_gc = render_state->fg_gc;
- }
-
- if (appearance->underline != PANGO_UNDERLINE_NONE ||
- appearance->strikethrough)
- need_ink = TRUE;
+ set_color (text_renderer, PANGO_RENDER_PART_FOREGROUND);
+
+ cr = text_renderer->cr;
+
+ cairo_set_line_width (cr, 1.0);
+
+ cairo_rectangle (cr,
+ shape_rect.x + 0.5, shape_rect.y + 0.5,
+ shape_rect.width - 1, shape_rect.height - 1);
+ cairo_move_to (cr, shape_rect.x + 0.5, shape_rect.y + 0.5);
+ cairo_line_to (cr,
+ shape_rect.x + shape_rect.width - 0.5,
+ shape_rect.y + shape_rect.height - 0.5);
+ cairo_move_to (cr, shape_rect.x + 0.5,
+ shape_rect.y + shape_rect.height - 0.5);
+ cairo_line_to (cr, shape_rect.x + shape_rect.width - 0.5,
+ shape_rect.y + 0.5);
+
+ cairo_stroke (cr);
+
+ unset_color (text_renderer);
+ }
+ else if (GDK_IS_PIXBUF (attr->data))
+ {
+ cairo_t *cr = text_renderer->cr;
+ GdkPixbuf *pixbuf = GDK_PIXBUF (attr->data);
- if (appearance->is_text)
- {
- if (need_ink)
- pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
- &ink_rect, &logical_rect);
- else
- pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
- NULL, &logical_rect);
- }
- else
- {
- if (need_ink)
- get_shape_extents (run, &ink_rect, &logical_rect);
- else
- get_shape_extents (run, NULL, &logical_rect);
- }
+ cairo_save (cr);
+
+ gdk_cairo_set_source_pixbuf (cr, pixbuf,
+ PANGO_PIXELS (x),
+ PANGO_PIXELS (y) - gdk_pixbuf_get_height (pixbuf));
+ cairo_paint (cr);
+
+ cairo_restore (cr);
+ }
+ else if (GTK_IS_WIDGET (attr->data))
+ {
+ GtkWidget *widget;
- if (appearance->draw_bg && !selected)
- gdk_draw_rectangle (drawable, render_state->bg_gc, TRUE,
- x + PANGO_PIXELS (x_off) + PANGO_PIXELS (logical_rect.x),
- risen_y + PANGO_PIXELS (logical_rect.y),
- PANGO_PIXELS (logical_rect.width),
- PANGO_PIXELS (logical_rect.height));
-
- if (appearance->is_text)
- gdk_draw_glyphs (drawable, fg_gc,
- run->item->analysis.font,
- x + PANGO_PIXELS (x_off),
- risen_y, run->glyphs);
- else
- {
- GObject *shaped = (*shaped_pointer)->data;
+ widget = GTK_WIDGET (attr->data);
- *shaped_pointer = (*shaped_pointer)->next;
-
- if (GDK_IS_PIXBUF (shaped))
- {
- gint width, height;
- GdkRectangle pixbuf_rect, draw_rect;
- GdkPixbuf *pixbuf;
+ text_renderer->widgets = g_list_prepend (text_renderer->widgets,
+ g_object_ref (widget));
+ }
+ else
+ g_assert_not_reached (); /* not a pixbuf or widget */
+}
- pixbuf = GDK_PIXBUF (shaped);
-
- width = gdk_pixbuf_get_width (pixbuf);
- height = gdk_pixbuf_get_height (pixbuf);
+static void
+gtk_text_renderer_finalize (GObject *object)
+{
+ G_OBJECT_CLASS (_gtk_text_renderer_parent_class)->finalize (object);
+}
- pixbuf_rect.x = x + x_off / PANGO_SCALE;
- pixbuf_rect.y = risen_y - height;
- pixbuf_rect.width = width;
- pixbuf_rect.height = height;
+static void
+_gtk_text_renderer_init (GtkTextRenderer *renderer)
+{
+}
- if (gdk_rectangle_intersect (&pixbuf_rect, &render_state->clip_rect,
- &draw_rect))
- {
- GdkBitmap *mask = NULL;
-
- if (gdk_pixbuf_get_has_alpha (pixbuf))
- {
- mask = gdk_pixmap_new (drawable,
- gdk_pixbuf_get_width (pixbuf),
- gdk_pixbuf_get_height (pixbuf),
- 1);
-
- gdk_pixbuf_render_threshold_alpha (pixbuf, mask,
- 0, 0, 0, 0,
- gdk_pixbuf_get_width (pixbuf),
- gdk_pixbuf_get_height (pixbuf),
- 128);
-
- }
-
- if (mask)
- {
- gdk_gc_set_clip_mask (render_state->fg_gc, mask);
- gdk_gc_set_clip_origin (render_state->fg_gc,
- pixbuf_rect.x, pixbuf_rect.y);
- }
-
- gdk_pixbuf_render_to_drawable (pixbuf,
- drawable,
- render_state->fg_gc,
- draw_rect.x - pixbuf_rect.x,
- draw_rect.y - pixbuf_rect.y,
- draw_rect.x, draw_rect.y,
- draw_rect.width,
- draw_rect.height,
- GDK_RGB_DITHER_NORMAL,
- 0, 0);
-
- if (mask)
- {
- gdk_gc_set_clip_rectangle (render_state->fg_gc,
- &render_state->clip_rect);
- g_object_unref (G_OBJECT (mask));
- }
- }
+static void
+_gtk_text_renderer_class_init (GtkTextRendererClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ PangoRendererClass *renderer_class = PANGO_RENDERER_CLASS (klass);
+
+ renderer_class->prepare_run = gtk_text_renderer_prepare_run;
+ renderer_class->draw_glyphs = gtk_text_renderer_draw_glyphs;
+ renderer_class->draw_glyph_item = gtk_text_renderer_draw_glyph_item;
+ renderer_class->draw_rectangle = gtk_text_renderer_draw_rectangle;
+ renderer_class->draw_trapezoid = gtk_text_renderer_draw_trapezoid;
+ renderer_class->draw_error_underline = gtk_text_renderer_draw_error_underline;
+ renderer_class->draw_shape = gtk_text_renderer_draw_shape;
+
+ object_class->finalize = gtk_text_renderer_finalize;
+}
- shaped_width_pixels = width;
- }
- else if (GTK_IS_WIDGET (shaped))
- {
- gint width, height;
- GdkRectangle draw_rect;
- GtkWidget *widget;
+static void
+text_renderer_set_state (GtkTextRenderer *text_renderer,
+ int state)
+{
+ text_renderer->state = state;
+}
- /* FIXME this doesn't work at all, and remember to use
- * risen_y
- */
-
- widget = GTK_WIDGET (shaped);
-
- width = widget->allocation.width;
- height = widget->allocation.height;
+static void
+text_renderer_begin (GtkTextRenderer *text_renderer,
+ GtkWidget *widget,
+ cairo_t *cr)
+{
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GdkRGBA color;
- if (GTK_WIDGET_DRAWABLE (widget) &&
- gtk_widget_intersect (widget,
- &render_state->clip_rect,
- &draw_rect))
- {
- gtk_widget_draw (widget, &draw_rect);
- }
+ text_renderer->widget = widget;
+ text_renderer->cr = cr;
- shaped_width_pixels = width;
- }
- else
- g_assert_not_reached (); /* not a pixbuf or widget */
- }
+ context = gtk_widget_get_style_context (widget);
- switch (appearance->underline)
- {
- case PANGO_UNDERLINE_NONE:
- break;
- case PANGO_UNDERLINE_DOUBLE:
- g_assert (need_ink);
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1,
- risen_y + 3,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE,
- risen_y + 3);
- /* Fall through */
- case PANGO_UNDERLINE_SINGLE:
- g_assert (need_ink);
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1,
- risen_y + 1,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE,
- risen_y + 1);
- break;
- case PANGO_UNDERLINE_LOW:
- g_assert (need_ink);
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1,
- risen_y + (ink_rect.y + ink_rect.height) / PANGO_SCALE + 1,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE,
- risen_y + (ink_rect.y + ink_rect.height) / PANGO_SCALE + 1);
- break;
- }
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
- if (appearance->strikethrough)
- {
- gint strikethrough_y = risen_y + (0.3 * logical_rect.y) / PANGO_SCALE;
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_color (context, state, &color);
- g_assert (need_ink);
-
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1, strikethrough_y,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE, strikethrough_y);
- }
+ cairo_save (cr);
- if (appearance->is_text)
- x_off += logical_rect.width;
- else
- x_off += shaped_width_pixels * PANGO_SCALE;
+ gdk_cairo_set_source_rgba (cr, &color);
+}
+
+/* Returns a GSList of (referenced) widgets encountered while drawing.
+ */
+static GList *
+text_renderer_end (GtkTextRenderer *text_renderer)
+{
+ GtkStyleContext *context;
+ GList *widgets = text_renderer->widgets;
+
+ cairo_restore (text_renderer->cr);
+
+ context = gtk_widget_get_style_context (text_renderer->widget);
+
+ gtk_style_context_restore (context);
+
+ text_renderer->widget = NULL;
+ text_renderer->cr = NULL;
+
+ text_renderer->widgets = NULL;
+
+ if (text_renderer->error_color)
+ {
+ gdk_rgba_free (text_renderer->error_color);
+ text_renderer->error_color = NULL;
}
+
+ return widgets;
+}
+
+static cairo_region_t *
+get_selected_clip (GtkTextRenderer *text_renderer,
+ PangoLayout *layout,
+ PangoLayoutLine *line,
+ int x,
+ int y,
+ int height,
+ int start_index,
+ int end_index)
+{
+ gint *ranges;
+ gint n_ranges, i;
+ cairo_region_t *clip_region = cairo_region_create ();
+
+ pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
+
+ for (i=0; i < n_ranges; i++)
+ {
+ GdkRectangle rect;
+
+ rect.x = x + PANGO_PIXELS (ranges[2*i]);
+ rect.y = y;
+ rect.width = PANGO_PIXELS (ranges[2*i + 1]) - PANGO_PIXELS (ranges[2*i]);
+ rect.height = height;
+
+ cairo_region_union_rectangle (clip_region, &rect);
+ }
+
+ g_free (ranges);
+ return clip_region;
}
static void
-render_para (GdkDrawable *drawable,
- GtkTextRenderState *render_state,
+render_para (GtkTextRenderer *text_renderer,
GtkTextLineDisplay *line_display,
- /* Top-left corner of paragraph including all margins */
- int x,
- int y,
int selection_start_index,
int selection_end_index)
{
- GSList *shaped_pointer = line_display->shaped_objects;
+ GtkStyleContext *context;
+ GtkStateFlags state;
PangoLayout *layout = line_display->layout;
int byte_offset = 0;
PangoLayoutIter *iter;
PangoRectangle layout_logical;
int screen_width;
-
+ GdkRGBA selection;
gboolean first = TRUE;
iter = pango_layout_get_iter (layout);
layout_logical.y += line_display->top_margin * PANGO_SCALE;
screen_width = line_display->total_width;
- if (screen_width < 0)
- {
- screen_width = pango_layout_get_width (layout);
- screen_width = PANGO_PIXELS (screen_width);
- }
-
+
+ context = gtk_widget_get_style_context (text_renderer->widget);
+ state = gtk_widget_get_state_flags (text_renderer->widget);
+
+ state |= GTK_STATE_FLAG_SELECTED;
+
+ gtk_style_context_get_background_color (context, state, &selection);
+
do
{
- PangoLayoutLine *line = pango_layout_iter_get_line (iter);
+ PangoLayoutLine *line = pango_layout_iter_get_line_readonly (iter);
int selection_y, selection_height;
int first_y, last_y;
PangoRectangle line_rect;
int baseline;
+ gboolean at_last_line;
pango_layout_iter_get_line_extents (iter, NULL, &line_rect);
baseline = pango_layout_iter_get_baseline (iter);
/* Selection is the height of the line, plus top/bottom
* margin if we're the first/last line
*/
- selection_y = y + PANGO_PIXELS (first_y) + line_display->top_margin;
+ selection_y = PANGO_PIXELS (first_y) + line_display->top_margin;
selection_height = PANGO_PIXELS (last_y) - PANGO_PIXELS (first_y);
if (first)
selection_y -= line_display->top_margin;
selection_height += line_display->top_margin;
}
-
- if (pango_layout_iter_at_last_line (iter))
+
+ at_last_line = pango_layout_iter_at_last_line (iter);
+ if (at_last_line)
selection_height += line_display->bottom_margin;
first = FALSE;
if (selection_start_index < byte_offset &&
selection_end_index > line->length + byte_offset) /* All selected */
{
- gdk_draw_rectangle (drawable,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
- TRUE,
- x + line_display->left_margin,
- selection_y,
- screen_width,
- selection_height);
-
- render_layout_line (drawable, render_state, line, &shaped_pointer,
- x + PANGO_PIXELS (line_rect.x),
- y + PANGO_PIXELS (baseline),
- TRUE);
+ cairo_t *cr = text_renderer->cr;
+
+ cairo_save (cr);
+ gdk_cairo_set_source_rgba (cr, &selection);
+ cairo_rectangle (cr,
+ line_display->left_margin, selection_y,
+ screen_width, selection_height);
+ cairo_fill (cr);
+ cairo_restore(cr);
+
+ text_renderer_set_state (text_renderer, SELECTED);
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ line_rect.x,
+ baseline);
}
else
{
- GSList *shaped_pointer_tmp = shaped_pointer;
+ if (line_display->pg_bg_rgba)
+ {
+ cairo_t *cr = text_renderer->cr;
- render_layout_line (drawable, render_state,
- line, &shaped_pointer,
- x + PANGO_PIXELS (line_rect.x),
- y + PANGO_PIXELS (baseline),
- FALSE);
+ cairo_save (cr);
+
+ gdk_cairo_set_source_rgba (text_renderer->cr, line_display->pg_bg_rgba);
+ cairo_rectangle (cr,
+ line_display->left_margin, selection_y,
+ screen_width, selection_height);
+ cairo_fill (cr);
- if (selection_start_index < byte_offset + line->length &&
- selection_end_index > byte_offset) /* Some selected */
+ cairo_restore (cr);
+ }
+
+ text_renderer_set_state (text_renderer, NORMAL);
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ line_rect.x,
+ baseline);
+
+ /* Check if some part of the line is selected; the newline
+ * that is after line->length for the last line of the
+ * paragraph counts as part of the line for this
+ */
+ if ((selection_start_index < byte_offset + line->length ||
+ (selection_start_index == byte_offset + line->length && pango_layout_iter_at_last_line (iter))) &&
+ selection_end_index > byte_offset)
{
- GdkRegion *clip_region = get_selected_clip (render_state, layout, line,
- x + line_display->x_offset,
+ cairo_t *cr = text_renderer->cr;
+ cairo_region_t *clip_region = get_selected_clip (text_renderer, layout, line,
+ line_display->x_offset,
selection_y,
selection_height,
selection_start_index, selection_end_index);
- gdk_gc_set_clip_region (render_state->widget->style->fg_gc [GTK_STATE_SELECTED], clip_region);
- gdk_gc_set_clip_region (render_state->widget->style->bg_gc [GTK_STATE_SELECTED], clip_region);
+ cairo_save (cr);
+ gdk_cairo_region (cr, clip_region);
+ cairo_clip (cr);
+ cairo_region_destroy (clip_region);
- gdk_draw_rectangle (drawable,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
- TRUE,
- x + PANGO_PIXELS (line_rect.x),
- selection_y,
- PANGO_PIXELS (line_rect.width),
- selection_height);
+ gdk_cairo_set_source_rgba (cr, &selection);
+ cairo_rectangle (cr,
+ PANGO_PIXELS (line_rect.x),
+ selection_y,
+ PANGO_PIXELS (line_rect.width),
+ selection_height);
+ cairo_fill (cr);
- render_layout_line (drawable, render_state, line, &shaped_pointer_tmp,
- x + PANGO_PIXELS (line_rect.x),
- y + PANGO_PIXELS (baseline),
- TRUE);
+ text_renderer_set_state (text_renderer, SELECTED);
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ line_rect.x,
+ baseline);
- gdk_gc_set_clip_region (render_state->widget->style->fg_gc [GTK_STATE_SELECTED], NULL);
- gdk_gc_set_clip_region (render_state->widget->style->bg_gc [GTK_STATE_SELECTED], NULL);
-
- gdk_region_destroy (clip_region);
+ cairo_restore (cr);
/* Paint in the ends of the line */
if (line_rect.x > line_display->left_margin * PANGO_SCALE &&
((line_display->direction == GTK_TEXT_DIR_LTR && selection_start_index < byte_offset) ||
(line_display->direction == GTK_TEXT_DIR_RTL && selection_end_index > byte_offset + line->length)))
{
- gdk_draw_rectangle (drawable,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
- TRUE,
- x + line_display->left_margin,
- selection_y,
- PANGO_PIXELS (line_rect.x) - line_display->left_margin,
- selection_height);
+ cairo_save (cr);
+
+ gdk_cairo_set_source_rgba (cr, &selection);
+ cairo_rectangle (cr,
+ line_display->left_margin,
+ selection_y,
+ PANGO_PIXELS (line_rect.x) - line_display->left_margin,
+ selection_height);
+ cairo_fill (cr);
+
+ cairo_restore (cr);
}
if (line_rect.x + line_rect.width <
line_display->left_margin + screen_width -
PANGO_PIXELS (line_rect.x) - PANGO_PIXELS (line_rect.width);
- gdk_draw_rectangle (drawable,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
- TRUE,
- x + PANGO_PIXELS (line_rect.x) + PANGO_PIXELS (line_rect.width),
- selection_y,
- nonlayout_width,
- selection_height);
+ cairo_save (cr);
+
+ gdk_cairo_set_source_rgba (cr, &selection);
+ cairo_rectangle (cr,
+ PANGO_PIXELS (line_rect.x) + PANGO_PIXELS (line_rect.width),
+ selection_y,
+ nonlayout_width,
+ selection_height);
+ cairo_fill (cr);
+
+ cairo_restore (cr);
}
}
- }
+ else if (line_display->has_block_cursor &&
+ gtk_widget_has_focus (text_renderer->widget) &&
+ byte_offset <= line_display->insert_index &&
+ (line_display->insert_index < byte_offset + line->length ||
+ (at_last_line && line_display->insert_index == byte_offset + line->length)))
+ {
+ GdkRectangle cursor_rect;
+ GdkRGBA cursor_color;
+ cairo_t *cr = text_renderer->cr;
+
+ /* we draw text using base color on filled cursor rectangle of cursor color
+ * (normally white on black) */
+ _gtk_style_context_get_cursor_color (context, &cursor_color, NULL);
+
+ cursor_rect.x = line_display->x_offset + line_display->block_cursor.x;
+ cursor_rect.y = line_display->block_cursor.y + line_display->top_margin;
+ cursor_rect.width = line_display->block_cursor.width;
+ cursor_rect.height = line_display->block_cursor.height;
+
+ cairo_save (cr);
+
+ gdk_cairo_rectangle (cr, &cursor_rect);
+ cairo_clip (cr);
+
+ gdk_cairo_set_source_rgba (cr, &cursor_color);
+ cairo_paint (cr);
+
+ /* draw text under the cursor if any */
+ if (!line_display->cursor_at_line_end)
+ {
+ GdkRGBA color;
- byte_offset += line->length;
- }
- while (pango_layout_iter_next_line (iter));
+ state = gtk_widget_get_state_flags (text_renderer->widget);
+ gtk_style_context_get_background_color (context, state, &color);
- pango_layout_iter_free (iter);
-}
+ gdk_cairo_set_source_rgba (cr, &color);
-static GdkRegion *
-get_selected_clip (GtkTextRenderState *render_state,
- PangoLayout *layout,
- PangoLayoutLine *line,
- int x,
- int y,
- int height,
- int start_index,
- int end_index)
-{
- gint *ranges;
- gint n_ranges, i;
- GdkRegion *clip_region = gdk_region_new ();
- GdkRegion *tmp_region;
+ text_renderer_set_state (text_renderer, CURSOR);
- pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ line_rect.x,
+ baseline);
+ }
- for (i=0; i < n_ranges; i++)
- {
- GdkRectangle rect;
+ cairo_restore (cr);
+ }
+ }
- rect.x = x + PANGO_PIXELS (ranges[2*i]);
- rect.y = y;
- rect.width = PANGO_PIXELS (ranges[2*i + 1]) - PANGO_PIXELS (ranges[2*i]);
- rect.height = height;
-
- gdk_region_union_with_rect (clip_region, &rect);
+ byte_offset += line->length;
}
+ while (pango_layout_iter_next_line (iter));
- tmp_region = gdk_region_rectangle (&render_state->clip_rect);
- gdk_region_intersect (clip_region, tmp_region);
- gdk_region_destroy (tmp_region);
-
- g_free (ranges);
- return clip_region;
+ pango_layout_iter_free (iter);
}
-static void
-get_item_properties (PangoItem *item,
- GtkTextAppearance **appearance)
+static GtkTextRenderer *
+get_text_renderer (void)
{
- GSList *tmp_list = item->extra_attrs;
-
- *appearance = NULL;
+ static GtkTextRenderer *text_renderer = NULL;
- while (tmp_list)
- {
- PangoAttribute *attr = tmp_list->data;
+ if (!text_renderer)
+ text_renderer = g_object_new (GTK_TYPE_TEXT_RENDERER, NULL);
- if (attr->klass->type == gtk_text_attr_appearance_type)
- {
- *appearance = &((GtkTextAttrAppearance *)attr)->appearance;
- }
-
- tmp_list = tmp_list->next;
- }
+ return text_renderer;
}
void
gtk_text_layout_draw (GtkTextLayout *layout,
GtkWidget *widget,
- GdkDrawable *drawable,
- /* Location of the layout
- in buffer coordinates */
- gint x_offset,
- gint y_offset,
- /* Region of the layout to
- render */
- gint x,
- gint y,
- gint width,
- gint height)
+ cairo_t *cr,
+ GList **widgets)
{
- GdkRectangle clip;
- gint current_y;
- GSList *cursor_list;
- GtkTextRenderState *render_state;
+ GtkStyleContext *context;
+ gint offset_y;
+ GtkTextRenderer *text_renderer;
GtkTextIter selection_start, selection_end;
- gboolean have_selection = FALSE;
+ gboolean have_selection;
GSList *line_list;
GSList *tmp_list;
-
+ GList *tmp_widgets;
+ GdkRectangle clip;
+
g_return_if_fail (GTK_IS_TEXT_LAYOUT (layout));
g_return_if_fail (layout->default_style != NULL);
g_return_if_fail (layout->buffer != NULL);
- g_return_if_fail (drawable != NULL);
- g_return_if_fail (x_offset >= 0);
- g_return_if_fail (y_offset >= 0);
- g_return_if_fail (width >= 0);
- g_return_if_fail (height >= 0);
+ g_return_if_fail (cr != NULL);
- if (width == 0 || height == 0)
+ if (!gdk_cairo_get_clip_rectangle (cr, &clip))
return;
- line_list = gtk_text_layout_get_lines (layout, y + y_offset, y + y_offset + height, ¤t_y);
- current_y -= y_offset;
+ context = gtk_widget_get_style_context (widget);
+
+ line_list = gtk_text_layout_get_lines (layout, clip.y, clip.y + clip.height, &offset_y);
if (line_list == NULL)
return; /* nothing on the screen */
- clip.x = x;
- clip.y = y;
- clip.width = width;
- clip.height = height;
+ text_renderer = get_text_renderer ();
+ text_renderer_begin (text_renderer, widget, cr);
- render_state = gtk_text_render_state_new (widget, drawable, &clip);
-
- gdk_gc_set_clip_rectangle (render_state->fg_gc, &clip);
- gdk_gc_set_clip_rectangle (render_state->bg_gc, &clip);
+ /* text_renderer_begin/end does cairo_save/restore */
+ cairo_translate (cr, 0, offset_y);
gtk_text_layout_wrap_loop_start (layout);
- if (gtk_text_buffer_get_selection_bounds (layout->buffer,
- &selection_start,
- &selection_end))
- have_selection = TRUE;
+ have_selection = gtk_text_buffer_get_selection_bounds (layout->buffer,
+ &selection_start,
+ &selection_end);
tmp_list = line_list;
while (tmp_list != NULL)
GtkTextLine *line = tmp_list->data;
line_display = gtk_text_layout_get_line_display (layout, line, FALSE);
-
- if (have_selection)
+
+ if (line_display->height > 0)
{
- GtkTextIter line_start, line_end;
- gint byte_count = gtk_text_line_byte_count (line);
-
- gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
- &line_start,
- line, 0);
- gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
- &line_end,
- line, byte_count - 1);
-
- if (gtk_text_iter_compare (&selection_start, &line_end) < 0 &&
- gtk_text_iter_compare (&selection_end, &line_start) > 0)
+ g_assert (line_display->layout != NULL);
+
+ if (have_selection)
{
- if (gtk_text_iter_compare (&selection_start, &line_start) >= 0)
- selection_start_index = gtk_text_iter_get_line_index (&selection_start);
- else
- selection_start_index = -1;
-
- if (gtk_text_iter_compare (&selection_end, &line_end) <= 0)
- selection_end_index = gtk_text_iter_get_line_index (&selection_end);
- else
- selection_end_index = byte_count;
+ GtkTextIter line_start, line_end;
+ gint byte_count;
+
+ gtk_text_layout_get_iter_at_line (layout,
+ &line_start,
+ line, 0);
+ line_end = line_start;
+ if (!gtk_text_iter_ends_line (&line_end))
+ gtk_text_iter_forward_to_line_end (&line_end);
+ byte_count = gtk_text_iter_get_visible_line_index (&line_end);
+
+ if (gtk_text_iter_compare (&selection_start, &line_end) <= 0 &&
+ gtk_text_iter_compare (&selection_end, &line_start) >= 0)
+ {
+ if (gtk_text_iter_compare (&selection_start, &line_start) >= 0)
+ selection_start_index = gtk_text_iter_get_visible_line_index (&selection_start);
+ else
+ selection_start_index = -1;
+
+ if (gtk_text_iter_compare (&selection_end, &line_end) <= 0)
+ selection_end_index = gtk_text_iter_get_visible_line_index (&selection_end);
+ else
+ selection_end_index = byte_count + 1; /* + 1 to flag past-the-end */
+ }
}
- }
-
- render_para (drawable, render_state, line_display,
- - x_offset,
- current_y,
- selection_start_index, selection_end_index);
-
-
- /* We paint the cursors last, because they overlap another chunk
- and need to appear on top. */
-
- cursor_list = line_display->cursors;
- while (cursor_list)
- {
- GtkTextCursorDisplay *cursor = cursor_list->data;
- GdkGC *gc;
- if (cursor->is_strong)
- gc = widget->style->bg_gc[GTK_STATE_SELECTED];
- else
- gc = widget->style->fg_gc[GTK_STATE_NORMAL];
+ render_para (text_renderer, line_display,
+ selection_start_index, selection_end_index);
- gdk_draw_line (drawable, gc,
- line_display->x_offset + cursor->x,
- current_y + line_display->top_margin + cursor->y,
- line_display->x_offset + cursor->x,
- current_y + line_display->top_margin + cursor->y + cursor->height - 1);
+ /* We paint the cursors last, because they overlap another chunk
+ * and need to appear on top.
+ */
+ if (line_display->cursors != NULL)
+ {
+ int i;
- cursor_list = cursor_list->next;
- }
+ for (i = 0; i < line_display->cursors->len; i++)
+ {
+ int index;
+ PangoDirection dir;
+
+ index = g_array_index(line_display->cursors, int, i);
+ dir = (line_display->direction == GTK_TEXT_DIR_RTL) ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR;
+ gtk_render_insertion_cursor (context, cr,
+ line_display->x_offset, line_display->top_margin,
+ line_display->layout, index, dir);
+ }
+ }
+ } /* line_display->height > 0 */
- current_y += line_display->height;
+ cairo_translate (cr, 0, line_display->height);
gtk_text_layout_free_line_display (layout, line_display);
-
+
tmp_list = g_slist_next (tmp_list);
}
gtk_text_layout_wrap_loop_end (layout);
- gtk_text_render_state_destroy (render_state);
+
+ tmp_widgets = text_renderer_end (text_renderer);
+ if (widgets)
+ *widgets = tmp_widgets;
+ else
+ g_list_free_full (tmp_widgets, g_object_unref);
g_slist_free (line_list);
}
projects / ~andy / gtk / blobdiff