* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
+#define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
+#include "config.h"
#include "gtktextdisplay.h"
+#include "gtkintl.h"
+#include "gtkalias.h"
/* DO NOT go putting private headers in here. This file should only
* use the semi-public headers, as with gtktextview.c.
*/
-#include <pango/pango.h>
+#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
{
- GtkWidget *widget;
+ GdkPangoRenderer parent_instance;
- GtkTextAppearance *last_appearance;
- GtkTextAppearance *last_bg_appearance;
- GdkGC *fg_gc;
- GdkGC *bg_gc;
+ GdkScreen *screen;
+
+ GtkWidget *widget;
+ GdkDrawable *drawable;
GdkRectangle clip_rect;
+
+ GdkColor *error_color; /* Error underline color for this widget */
+ GList *widgets; /* widgets encountered when drawing */
+
+ int state;
};
-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);
-
- state->widget = widget;
- state->fg_gc = gdk_gc_new (drawable);
- state->bg_gc = gdk_gc_new (drawable);
- state->clip_rect = *clip_rect;
+ GdkPangoRendererClass parent_class;
+};
- return state;
-}
+G_DEFINE_TYPE (GtkTextRenderer, _gtk_text_renderer, GDK_TYPE_PANGO_RENDERER)
-static void
-gtk_text_render_state_destroy (GtkTextRenderState *state)
+static GdkColor *
+text_renderer_get_error_color (GtkTextRenderer *text_renderer)
{
- gdk_gc_unref (state->fg_gc);
- gdk_gc_unref (state->bg_gc);
+ static const GdkColor red = { 0, 0xffff, 0, 0 };
- g_free (state);
-}
+ if (!text_renderer->error_color)
+ gtk_widget_style_get (text_renderer->widget,
+ "error-underline-color", &text_renderer->error_color,
+ NULL);
+
+ if (!text_renderer->error_color)
+ text_renderer->error_color = gdk_color_copy (&red);
-static void
-gtk_text_render_state_set_color (GtkTextRenderState *state,
- GdkGC *gc,
- GdkColor *color)
-{
- gdk_colormap_alloc_color (gtk_widget_get_colormap (state->widget), color, FALSE, TRUE);
- gdk_gc_set_foreground (gc, color);
+ return text_renderer->error_color;
}
static void
-gtk_text_render_state_update (GtkTextRenderState *state,
- GtkTextAppearance *new_appearance)
+text_renderer_set_gdk_color (GtkTextRenderer *text_renderer,
+ PangoRenderPart part,
+ GdkColor *gdk_color)
{
- 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);
+ PangoRenderer *renderer = PANGO_RENDERER (text_renderer);
- if (!state->last_appearance ||
- new_appearance->fg_stipple != state->last_appearance->fg_stipple)
+ if (gdk_color)
{
- 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);
- }
+ PangoColor color;
+
+ color.red = gdk_color->red;
+ color.green = gdk_color->green;
+ color.blue = gdk_color->blue;
+
+ pango_renderer_set_color (renderer, part, &color);
}
+ else
+ pango_renderer_set_color (renderer, part, NULL);
+
+}
- if (new_appearance->draw_bg)
+static GtkTextAppearance *
+get_item_appearance (PangoItem *item)
+{
+ GSList *tmp_list = item->analysis.extra_attrs;
+
+ while (tmp_list)
{
- 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);
+ PangoAttribute *attr = tmp_list->data;
- if (!state->last_bg_appearance ||
- new_appearance->bg_stipple != state->last_bg_appearance->bg_stipple)
- {
- 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);
- }
- }
+ if (attr->klass->type == gtk_text_attr_appearance_type)
+ return &((GtkTextAttrAppearance *)attr)->appearance;
- state->last_bg_appearance = new_appearance;
+ tmp_list = tmp_list->next;
}
- state->last_appearance = new_appearance;
+ return NULL;
}
static void
-get_shape_extents (PangoLayoutRun *run,
- PangoRectangle *ink_rect,
- PangoRectangle *logical_rect)
+gtk_text_renderer_prepare_run (PangoRenderer *renderer,
+ PangoLayoutRun *run)
{
- GSList *tmp_list = run->item->analysis.extra_attrs;
-
- while (tmp_list)
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+ GdkPangoRenderer *gdk_renderer = GDK_PANGO_RENDERER (renderer);
+ GdkColor *bg_color, *fg_color, *underline_color;
+ GdkPixmap *fg_stipple, *bg_stipple;
+ GtkTextAppearance *appearance;
+
+ PANGO_RENDERER_CLASS (_gtk_text_renderer_parent_class)->prepare_run (renderer, run);
+
+ appearance = get_item_appearance (run->item);
+ g_assert (appearance != NULL);
+
+ if (appearance->draw_bg && text_renderer->state == NORMAL)
+ bg_color = &appearance->bg_color;
+ else
+ bg_color = NULL;
+
+ text_renderer_set_gdk_color (text_renderer, PANGO_RENDER_PART_BACKGROUND, bg_color);
+
+ if (text_renderer->state == SELECTED)
{
- PangoAttribute *attr = tmp_list->data;
+ if (GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
+ fg_color = &text_renderer->widget->style->text[GTK_STATE_SELECTED];
+ else
+ fg_color = &text_renderer->widget->style->text[GTK_STATE_ACTIVE];
+ }
+ else if (text_renderer->state == CURSOR && GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
+ fg_color = &text_renderer->widget->style->base[GTK_STATE_NORMAL];
+ else
+ fg_color = &appearance->fg_color;
- if (attr->klass->type == PANGO_ATTR_SHAPE)
- {
- if (logical_rect)
- *logical_rect = ((PangoAttrShape *)attr)->logical_rect;
+ text_renderer_set_gdk_color (text_renderer, PANGO_RENDER_PART_FOREGROUND, fg_color);
+ text_renderer_set_gdk_color (text_renderer, PANGO_RENDER_PART_STRIKETHROUGH, fg_color);
- if (ink_rect)
- *ink_rect = ((PangoAttrShape *)attr)->ink_rect;
+ if (appearance->underline == PANGO_UNDERLINE_ERROR)
+ underline_color = text_renderer_get_error_color (text_renderer);
+ else
+ underline_color = fg_color;
- return;
- }
+ text_renderer_set_gdk_color (text_renderer, PANGO_RENDER_PART_UNDERLINE, underline_color);
- tmp_list = tmp_list->next;
+ fg_stipple = appearance->fg_stipple;
+ if (fg_stipple && text_renderer->screen != gdk_drawable_get_screen (fg_stipple))
+ {
+ g_warning ("gtk_text_renderer_prepare_run:\n"
+ "The foreground stipple bitmap has been created on the wrong screen.\n"
+ "Ignoring the stipple bitmap information.");
+ fg_stipple = NULL;
}
+
+ gdk_pango_renderer_set_stipple (gdk_renderer, PANGO_RENDER_PART_FOREGROUND, fg_stipple);
+ gdk_pango_renderer_set_stipple (gdk_renderer, PANGO_RENDER_PART_STRIKETHROUGH, fg_stipple);
+ gdk_pango_renderer_set_stipple (gdk_renderer, PANGO_RENDER_PART_UNDERLINE, fg_stipple);
- g_assert_not_reached ();
+ bg_stipple = appearance->draw_bg ? appearance->bg_stipple : NULL;
+
+ if (bg_stipple && text_renderer->screen != gdk_drawable_get_screen (bg_stipple))
+ {
+ g_warning ("gtk_text_renderer_prepare_run:\n"
+ "The background stipple bitmap has been created on the wrong screen.\n"
+ "Ignoring the stipple bitmap information.");
+ bg_stipple = NULL;
+ }
+
+ gdk_pango_renderer_set_stipple (gdk_renderer, PANGO_RENDER_PART_BACKGROUND, bg_stipple);
}
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_shape (PangoRenderer *renderer,
+ PangoAttrShape *attr,
+ int x,
+ int y)
{
- GSList *tmp_list = line->runs;
- PangoRectangle overall_rect;
- PangoRectangle logical_rect;
- PangoRectangle ink_rect;
- gint x_off = 0;
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
GdkGC *fg_gc;
-
- pango_layout_line_get_extents (line, NULL, &overall_rect);
- while (tmp_list)
+ if (text_renderer->state == SELECTED)
+ {
+ if (GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
+ fg_gc = text_renderer->widget->style->text_gc[GTK_STATE_SELECTED];
+ else
+ fg_gc = text_renderer->widget->style->text_gc[GTK_STATE_SELECTED];
+ }
+ else if (text_renderer->state == CURSOR && GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
+ fg_gc = text_renderer->widget->style->base_gc[GTK_STATE_NORMAL];
+ else
+ fg_gc = text_renderer->widget->style->text_gc[GTK_STATE_NORMAL];
+
+ if (attr->data == NULL)
{
- PangoLayoutRun *run = tmp_list->data;
- GtkTextAppearance *appearance;
- gint risen_y;
- gint shaped_width_pixels = 0;
- gboolean need_ink = FALSE;
+ /* This happens if we have an empty widget anchor. Draw
+ * something empty-looking.
+ */
+ GdkRectangle shape_rect, draw_rect;
- tmp_list = tmp_list->next;
-
- get_item_properties (run->item, &appearance);
-
- g_assert (appearance != NULL);
+ 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;
- risen_y = y - PANGO_PIXELS (appearance->rise);
+ if (gdk_rectangle_intersect (&shape_rect, &text_renderer->clip_rect,
+ &draw_rect))
+ {
+ gdk_draw_rectangle (text_renderer->drawable, fg_gc,
+ FALSE, shape_rect.x, shape_rect.y,
+ shape_rect.width, shape_rect.height);
+
+ gdk_draw_line (text_renderer->drawable, fg_gc,
+ shape_rect.x, shape_rect.y,
+ shape_rect.x + shape_rect.width,
+ shape_rect.y + shape_rect.height);
+
+ gdk_draw_line (text_renderer->drawable, fg_gc,
+ shape_rect.x + shape_rect.width, shape_rect.y,
+ shape_rect.x,
+ shape_rect.y + shape_rect.height);
+ }
+ }
+ else if (GDK_IS_PIXBUF (attr->data))
+ {
+ gint width, height;
+ GdkRectangle pixbuf_rect, draw_rect;
+ GdkPixbuf *pixbuf;
- if (selected)
- {
- if (GTK_WIDGET_HAS_FOCUS (render_state->widget))
- fg_gc = render_state->widget->style->text_gc[GTK_STATE_SELECTED];
- else
- fg_gc = render_state->widget->style->text_gc [GTK_STATE_ACTIVE];
- }
- else
- {
- gtk_text_render_state_update (render_state, appearance);
-
- fg_gc = render_state->fg_gc;
- }
+ pixbuf = GDK_PIXBUF (attr->data);
- if (appearance->underline != PANGO_UNDERLINE_NONE ||
- appearance->strikethrough)
- need_ink = TRUE;
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
- 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);
- }
+ pixbuf_rect.x = PANGO_PIXELS (x);
+ pixbuf_rect.y = PANGO_PIXELS (y) - height;
+ pixbuf_rect.width = width;
+ pixbuf_rect.height = height;
- 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;
+ if (gdk_rectangle_intersect (&pixbuf_rect, &text_renderer->clip_rect,
+ &draw_rect))
+ {
+ gdk_draw_pixbuf (text_renderer->drawable,
+ fg_gc,
+ pixbuf,
+ 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);
+ }
+ }
+ else if (GTK_IS_WIDGET (attr->data))
+ {
+ GtkWidget *widget;
+
+ widget = GTK_WIDGET (attr->data);
- *shaped_pointer = (*shaped_pointer)->next;
+ text_renderer->widgets = g_list_prepend (text_renderer->widgets,
+ g_object_ref (widget));
+ }
+ else
+ g_assert_not_reached (); /* not a pixbuf or widget */
+}
- if (shaped == NULL)
- {
- /* This happens if we have an empty widget anchor. Draw
- * something empty-looking.
- */
- GdkRectangle shape_rect, draw_rect;
-
- shape_rect.x = x + x_off / PANGO_SCALE;
- shape_rect.y = risen_y - PANGO_PIXELS (logical_rect.height);
- shape_rect.width = PANGO_PIXELS (logical_rect.width);
- shape_rect.height = PANGO_PIXELS (logical_rect.height);
-
- if (gdk_rectangle_intersect (&shape_rect, &render_state->clip_rect,
- &draw_rect))
- {
- gdk_draw_rectangle (drawable, render_state->fg_gc,
- FALSE, shape_rect.x, shape_rect.y,
- shape_rect.width, shape_rect.height);
-
- gdk_draw_line (drawable, render_state->fg_gc,
- shape_rect.x, shape_rect.y,
- shape_rect.x + shape_rect.width,
- shape_rect.y + shape_rect.height);
-
- gdk_draw_line (drawable, render_state->fg_gc,
- shape_rect.x + shape_rect.width, shape_rect.y,
- shape_rect.x,
- shape_rect.y + shape_rect.height);
- }
- }
- else if (GDK_IS_PIXBUF (shaped))
- {
- gint width, height;
- GdkRectangle pixbuf_rect, draw_rect;
- GdkPixbuf *pixbuf;
+static void
+gtk_text_renderer_finalize (GObject *object)
+{
+ G_OBJECT_CLASS (_gtk_text_renderer_parent_class)->finalize (object);
+}
- pixbuf = GDK_PIXBUF (shaped);
-
- width = gdk_pixbuf_get_width (pixbuf);
- height = gdk_pixbuf_get_height (pixbuf);
+static void
+_gtk_text_renderer_init (GtkTextRenderer *renderer)
+{
+}
- 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_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_shape = gtk_text_renderer_draw_shape;
- 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));
- }
- }
+ 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;
-
- widget = GTK_WIDGET (shaped);
-
- width = widget->allocation.width;
- height = widget->allocation.height;
-
- g_print ("widget allocation at %d,%d %d x %d\n",
- widget->allocation.x,
- widget->allocation.y,
- widget->allocation.width,
- widget->allocation.height);
-
- if (GTK_WIDGET_DRAWABLE (widget) &&
- gdk_rectangle_intersect (&widget->allocation,
- &render_state->clip_rect,
- &draw_rect))
+static void
+text_renderer_set_state (GtkTextRenderer *text_renderer,
+ int state)
+{
+ text_renderer->state = state;
+}
- {
- g_print ("drawing widget area %d,%d %d x %d\n",
- draw_rect.x,
- draw_rect.y,
- draw_rect.width,
- draw_rect.height);
+static void
+text_renderer_begin (GtkTextRenderer *text_renderer,
+ GtkWidget *widget,
+ GdkDrawable *drawable,
+ GdkRectangle *clip_rect)
+{
+ text_renderer->widget = widget;
+ text_renderer->drawable = drawable;
+ text_renderer->clip_rect = *clip_rect;
- gtk_widget_draw (widget, &draw_rect);
- }
+ gdk_pango_renderer_set_drawable (GDK_PANGO_RENDERER (text_renderer), drawable);
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer),
+ widget->style->text_gc[widget->state]);
+}
- shaped_width_pixels = width;
- }
- else
- g_assert_not_reached (); /* not a pixbuf or widget */
- }
+/* Returns a GSList of (referenced) widgets encountered while drawing.
+ */
+static GList *
+text_renderer_end (GtkTextRenderer *text_renderer)
+{
+ GList *widgets = text_renderer->widgets;
- 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;
- }
+ text_renderer->widget = NULL;
+ text_renderer->drawable = NULL;
- if (appearance->strikethrough)
- {
- gint strikethrough_y = risen_y + (0.3 * logical_rect.y) / PANGO_SCALE;
+ text_renderer->widgets = NULL;
- 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);
- }
+ if (text_renderer->error_color)
+ {
+ gdk_color_free (text_renderer->error_color);
+ text_renderer->error_color = NULL;
+ }
- if (appearance->is_text)
- x_off += logical_rect.width;
- else
- x_off += shaped_width_pixels * PANGO_SCALE;
+ gdk_pango_renderer_set_drawable (GDK_PANGO_RENDERER (text_renderer), NULL);
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), NULL);
+
+ return widgets;
+}
+
+
+static GdkRegion *
+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;
+ GdkRegion *clip_region = gdk_region_new ();
+ GdkRegion *tmp_region;
+
+ 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;
+
+ gdk_region_union_with_rect (clip_region, &rect);
}
+
+ tmp_region = gdk_region_rectangle (&text_renderer->clip_rect);
+ gdk_region_intersect (clip_region, tmp_region);
+ gdk_region_destroy (tmp_region);
+
+ 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 selection_start_index,
int selection_end_index)
{
- GSList *shaped_pointer = line_display->shaped_objects;
PangoLayout *layout = line_display->layout;
int byte_offset = 0;
PangoLayoutIter *iter;
PangoRectangle layout_logical;
int screen_width;
- GdkGC *fg_gc, *bg_gc;
+ GdkGC *selection_gc, *fg_gc;
gint state;
gboolean first = TRUE;
screen_width = line_display->total_width;
- if (GTK_WIDGET_HAS_FOCUS (render_state->widget))
+ if (GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
- fg_gc = render_state->widget->style->text_gc [state];
- bg_gc = render_state->widget->style->base_gc [state];
+ selection_gc = text_renderer->widget->style->base_gc [state];
+ fg_gc = text_renderer->widget->style->text_gc[text_renderer->widget->state];
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_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,
- bg_gc,
+ gdk_draw_rectangle (text_renderer->drawable,
+ selection_gc,
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);
+ text_renderer_set_state (text_renderer, SELECTED);
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ PANGO_SCALE * x + line_rect.x,
+ PANGO_SCALE * y + baseline);
}
else
{
- GSList *shaped_pointer_tmp = shaped_pointer;
-
- render_layout_line (drawable, render_state,
- line, &shaped_pointer,
- x + PANGO_PIXELS (line_rect.x),
- y + PANGO_PIXELS (baseline),
- FALSE);
-
- if (selection_start_index <= byte_offset + line->length &&
- selection_end_index > byte_offset) /* Some selected */
+ if (line_display->pg_bg_color)
{
- GdkRegion *clip_region = get_selected_clip (render_state, layout, line,
+ GdkGC *bg_gc;
+
+ bg_gc = gdk_gc_new (text_renderer->drawable);
+ gdk_gc_set_fill (bg_gc, GDK_SOLID);
+ gdk_gc_set_rgb_fg_color (bg_gc, line_display->pg_bg_color);
+
+ gdk_draw_rectangle (text_renderer->drawable,
+ bg_gc,
+ TRUE,
+ x + line_display->left_margin,
+ selection_y,
+ screen_width,
+ selection_height);
+
+ g_object_unref (bg_gc);
+ }
+
+ text_renderer_set_state (text_renderer, NORMAL);
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ PANGO_SCALE * x + line_rect.x,
+ PANGO_SCALE * y + 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 (text_renderer, layout, line,
x + line_display->x_offset,
selection_y,
selection_height,
selection_start_index, selection_end_index);
+
+ /* When we change the clip on the foreground GC, we have to set
+ * it on the rendererer again, since the rendererer might have
+ * copied the GC to change attributes.
+ */
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), NULL);
+ gdk_gc_set_clip_region (selection_gc, clip_region);
gdk_gc_set_clip_region (fg_gc, clip_region);
- gdk_gc_set_clip_region (bg_gc, clip_region);
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), fg_gc);
- gdk_draw_rectangle (drawable,
- bg_gc,
+ gdk_draw_rectangle (text_renderer->drawable,
+ selection_gc,
TRUE,
x + PANGO_PIXELS (line_rect.x),
selection_y,
PANGO_PIXELS (line_rect.width),
selection_height);
- 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,
+ PANGO_SCALE * x + line_rect.x,
+ PANGO_SCALE * y + baseline);
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), NULL);
+ gdk_gc_set_clip_region (selection_gc, NULL);
gdk_gc_set_clip_region (fg_gc, NULL);
- gdk_gc_set_clip_region (bg_gc, NULL);
-
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), fg_gc);
+
gdk_region_destroy (clip_region);
/* Paint in the ends of the line */
((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,
- bg_gc,
+ gdk_draw_rectangle (text_renderer->drawable,
+ selection_gc,
TRUE,
x + line_display->left_margin,
selection_y,
line_display->left_margin + screen_width -
PANGO_PIXELS (line_rect.x) - PANGO_PIXELS (line_rect.width);
- gdk_draw_rectangle (drawable,
- bg_gc,
+ gdk_draw_rectangle (text_renderer->drawable,
+ selection_gc,
TRUE,
x + PANGO_PIXELS (line_rect.x) + PANGO_PIXELS (line_rect.width),
selection_y,
selection_height);
}
}
- }
+ 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;
+ GdkGC *cursor_gc;
- byte_offset += line->length;
- }
- while (pango_layout_iter_next_line (iter));
+ /* we draw text using base color on filled cursor rectangle of cursor color
+ * (normally white on black) */
+ cursor_gc = _gtk_widget_get_cursor_gc (text_renderer->widget);
- pango_layout_iter_free (iter);
-}
+ cursor_rect.x = x + line_display->x_offset + line_display->block_cursor.x;
+ cursor_rect.y = 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;
-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;
+ gdk_gc_set_clip_rectangle (cursor_gc, &cursor_rect);
- pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
+ gdk_draw_rectangle (text_renderer->drawable,
+ cursor_gc,
+ TRUE,
+ cursor_rect.x,
+ cursor_rect.y,
+ cursor_rect.width,
+ cursor_rect.height);
- for (i=0; i < n_ranges; i++)
- {
- GdkRectangle rect;
+ gdk_gc_set_clip_region (cursor_gc, NULL);
- 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);
- }
+ /* draw text under the cursor if any */
+ if (!line_display->cursor_at_line_end)
+ {
+ GdkGC *cursor_text_gc;
- tmp_region = gdk_region_rectangle (&render_state->clip_rect);
- gdk_region_intersect (clip_region, tmp_region);
- gdk_region_destroy (tmp_region);
+ cursor_text_gc = text_renderer->widget->style->base_gc[text_renderer->widget->state];
+ gdk_gc_set_clip_rectangle (cursor_text_gc, &cursor_rect);
- g_free (ranges);
- return clip_region;
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), cursor_text_gc);
+ text_renderer_set_state (text_renderer, CURSOR);
+
+ pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
+ line,
+ PANGO_SCALE * x + line_rect.x,
+ PANGO_SCALE * y + baseline);
+
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), fg_gc);
+ gdk_gc_set_clip_region (cursor_text_gc, NULL);
+ }
+ }
+ }
+
+ byte_offset += line->length;
+ }
+ while (pango_layout_iter_next_line (iter));
+
+ pango_layout_iter_free (iter);
}
static void
-get_item_properties (PangoItem *item,
- GtkTextAppearance **appearance)
+on_renderer_display_closed (GdkDisplay *display,
+ gboolean is_error,
+ GtkTextRenderer *text_renderer)
{
- GSList *tmp_list = item->analysis.extra_attrs;
+ g_signal_handlers_disconnect_by_func (text_renderer->screen,
+ (gpointer)on_renderer_display_closed,
+ text_renderer);
+ g_object_set_data (G_OBJECT (text_renderer->screen), I_("gtk-text-renderer"), NULL);
+}
- *appearance = NULL;
+static GtkTextRenderer *
+get_text_renderer (GdkScreen *screen)
+{
+ GtkTextRenderer *text_renderer;
- while (tmp_list)
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+ text_renderer = g_object_get_data (G_OBJECT (screen), "gtk-text-renderer");
+ if (!text_renderer)
{
- PangoAttribute *attr = tmp_list->data;
-
- if (attr->klass->type == gtk_text_attr_appearance_type)
- {
- *appearance = &((GtkTextAttrAppearance *)attr)->appearance;
- }
+ text_renderer = g_object_new (GTK_TYPE_TEXT_RENDERER, "screen", screen, NULL);
+ text_renderer->screen = screen;
+
+ g_object_set_data_full (G_OBJECT (screen), I_("gtk-text-renderer"), text_renderer,
+ (GDestroyNotify)g_object_unref);
- tmp_list = tmp_list->next;
+ g_signal_connect_object (gdk_screen_get_display (screen), "closed",
+ G_CALLBACK (on_renderer_display_closed),
+ text_renderer, 0);
}
+
+ return text_renderer;
}
void
gint x,
gint y,
gint width,
- gint height)
+ gint height,
+ /* widgets to expose */
+ GList **widgets)
{
GdkRectangle clip;
gint current_y;
GSList *cursor_list;
- GtkTextRenderState *render_state;
+ GtkTextRenderer *text_renderer;
GtkTextIter selection_start, selection_end;
gboolean have_selection = FALSE;
GSList *line_list;
GSList *tmp_list;
+ GList *tmp_widgets;
g_return_if_fail (GTK_IS_TEXT_LAYOUT (layout));
g_return_if_fail (layout->default_style != NULL);
clip.width = width;
clip.height = height;
- render_state = gtk_text_render_state_new (widget, drawable, &clip);
+ text_renderer = get_text_renderer (gdk_drawable_get_screen (drawable));
- gdk_gc_set_clip_rectangle (render_state->fg_gc, &clip);
- gdk_gc_set_clip_rectangle (render_state->bg_gc, &clip);
+ text_renderer_begin (text_renderer, widget, drawable, &clip);
gtk_text_layout_wrap_loop_start (layout);
gtk_text_layout_get_iter_at_line (layout,
&line_start,
line, 0);
- byte_count = gtk_text_iter_get_bytes_in_line (&line_start);
-
- /* FIXME the -1 assumes a newline I think */
- gtk_text_layout_get_iter_at_line (layout,
- &line_end,
- line, byte_count - 1);
+ 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_line_index (&selection_start);
+ 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_line_index (&selection_end);
+ selection_end_index = gtk_text_iter_get_visible_line_index (&selection_end);
else
- selection_end_index = byte_count;
+ selection_end_index = byte_count + 1; /* + 1 to flag past-the-end */
}
}
- render_para (drawable, render_state, line_display,
+ render_para (text_renderer, 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. */
GtkTextDirection dir;
GdkRectangle cursor_location;
- GdkGC *gc;
-
- if (cursor->is_strong)
- gc = cursor_gc;
- else
- gc = widget->style->text_gc[GTK_STATE_NORMAL];
-
+ dir = line_display->direction;
if (have_strong && have_weak)
{
- dir = line_display->direction;
if (!cursor->is_strong)
dir = (dir == GTK_TEXT_DIR_RTL) ? GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
}
- else
- {
- dir = GTK_TEXT_DIR_NONE;
- }
cursor_location.x = line_display->x_offset + cursor->x - x_offset;
cursor_location.y = current_y + line_display->top_margin + cursor->y;
cursor_location.width = 0;
cursor_location.height = cursor->height;
-
- gdk_gc_set_clip_rectangle(gc, &clip);
- _gtk_draw_insertion_cursor (drawable, gc, &cursor_location, dir);
- gdk_gc_set_clip_rectangle (gc, NULL);
+
+ gtk_draw_insertion_cursor (widget, drawable, &clip, &cursor_location,
+ cursor->is_strong,
+ dir, have_strong && have_weak);
cursor_list = cursor_list->next;
}
current_y += line_display->height;
gtk_text_layout_free_line_display (layout, line_display);
- render_state->last_appearance = NULL;
- render_state->last_bg_appearance = NULL;
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_foreach (tmp_widgets, (GFunc)g_object_unref, NULL);
+ g_list_free (tmp_widgets);
+ }
g_slist_free (line_list);
}
+
+#define __GTK_TEXT_DISPLAY_C__
+#include "gtkaliasdef.c"
projects / ~andy / gtk / blobdiff