* 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 "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
+struct _GtkTextRenderer
{
- GtkWidget *widget;
+ GdkPangoRenderer parent_instance;
- GtkTextAppearance *last_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 */
+
+ gboolean selected;
};
-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);
+ GdkPangoRendererClass parent_class;
+};
- state->widget = widget;
- state->fg_gc = gdk_gc_new (drawable);
- state->bg_gc = gdk_gc_new (drawable);
- state->clip_rect = *clip_rect;
+G_DEFINE_TYPE (GtkTextRenderer, _gtk_text_renderer, GDK_TYPE_PANGO_RENDERER)
- return state;
+static GdkColor *
+text_renderer_get_error_color (GtkTextRenderer *text_renderer)
+{
+ static const GdkColor red = { 0, 0xffff, 0, 0 };
+
+ 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);
+
+ return text_renderer->error_color;
}
static void
-gtk_text_render_state_destroy (GtkTextRenderState *state)
+text_renderer_set_gdk_color (GtkTextRenderer *text_renderer,
+ PangoRenderPart part,
+ GdkColor *gdk_color)
{
- gdk_gc_unref (state->fg_gc);
- gdk_gc_unref (state->bg_gc);
+ PangoRenderer *renderer = PANGO_RENDERER (text_renderer);
- g_free (state);
+ if (gdk_color)
+ {
+ 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);
+
}
-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);
+ 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->selected)
+ bg_color = &appearance->bg_color;
+ else
+ bg_color = NULL;
+
+ text_renderer_set_gdk_color (text_renderer, PANGO_RENDER_PART_BACKGROUND, bg_color);
- if (!state->last_appearance ||
- new_appearance->fg_stipple != state->last_appearance->fg_stipple)
+ if (text_renderer->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);
- }
+ if (GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
+ fg_color = &text_renderer->widget->style->text[GTK_STATE_SELECTED];
else
- {
- gdk_gc_set_fill (state->fg_gc, GDK_SOLID);
- }
+ fg_color = &text_renderer->widget->style->text[GTK_STATE_ACTIVE];
}
+ else
+ fg_color = &appearance->fg_color;
- if (new_appearance->draw_bg)
- {
- if (!state->last_appearance ||
- !gdk_color_equal (&new_appearance->bg_color, &state->last_appearance->bg_color))
- gtk_text_render_state_set_color (state, state->bg_gc, &new_appearance->bg_color);
+ 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 (!state->last_appearance ||
- new_appearance->bg_stipple != state->last_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 (appearance->underline == PANGO_UNDERLINE_ERROR)
+ underline_color = text_renderer_get_error_color (text_renderer);
+ else
+ underline_color = fg_color;
+
+ text_renderer_set_gdk_color (text_renderer, PANGO_RENDER_PART_UNDERLINE, underline_color);
+
+ 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);
- state->last_appearance = new_appearance;
+ 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;
+ GtkTextRenderer *text_renderer = GTK_TEXT_RENDERER (renderer);
+ GdkGC *fg_gc;
- gint x_off = 0;
+ if (text_renderer->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
+ fg_gc = text_renderer->widget->style->text_gc[GTK_STATE_NORMAL];
+
+ if (attr->data == NULL)
+ {
+ /* This happens if we have an empty widget anchor. Draw
+ * something empty-looking.
+ */
+ GdkRectangle shape_rect, draw_rect;
+
+ 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;
+
+ 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;
+
+ pixbuf = GDK_PIXBUF (attr->data);
+
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+
+ pixbuf_rect.x = PANGO_PIXELS (x);
+ pixbuf_rect.y = PANGO_PIXELS (y) - height;
+ pixbuf_rect.width = width;
+ pixbuf_rect.height = height;
+
+ 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);
- pango_layout_line_get_extents (line, NULL, &overall_rect);
+ text_renderer->widgets = g_list_prepend (text_renderer->widgets,
+ g_object_ref (widget));
+ }
+ else
+ g_assert_not_reached (); /* not a pixbuf or widget */
+}
- while (tmp_list)
- {
- PangoLayoutRun *run = tmp_list->data;
- GtkTextAppearance *appearance;
+static void
+gtk_text_renderer_finalize (GObject *object)
+{
+ G_OBJECT_CLASS (_gtk_text_renderer_parent_class)->finalize (object);
+}
- tmp_list = tmp_list->next;
+static void
+_gtk_text_renderer_init (GtkTextRenderer *renderer)
+{
+}
- get_item_properties (run->item, &appearance);
+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 (appearance) /* A text segment */
- {
- GdkGC *fg_gc;
+ object_class->finalize = gtk_text_renderer_finalize;
+}
- if (selected)
- {
- fg_gc = render_state->widget->style->fg_gc[GTK_STATE_SELECTED];
- }
- else
- {
- gtk_text_render_state_update (render_state, appearance);
+static void
+text_renderer_set_selected (GtkTextRenderer *text_renderer,
+ gboolean selected)
+{
+ text_renderer->selected = selected;
+}
- fg_gc = render_state->fg_gc;
- }
+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;
- if (appearance->underline == PANGO_UNDERLINE_NONE && !appearance->strikethrough)
- pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
- NULL, &logical_rect);
- else
- pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
- &ink_rect, &logical_rect);
-
- if (appearance->draw_bg && !selected)
- gdk_draw_rectangle (drawable, render_state->bg_gc, TRUE,
- x + PANGO_PIXELS (x_off) + PANGO_PIXELS (logical_rect.x),
- y + PANGO_PIXELS (logical_rect.y),
- PANGO_PIXELS (logical_rect.width),
- PANGO_PIXELS (logical_rect.height));
-
- gdk_draw_glyphs (drawable, fg_gc,
- run->item->analysis.font,
- x + PANGO_PIXELS (x_off), y, run->glyphs);
-
- switch (appearance->underline)
- {
- case PANGO_UNDERLINE_NONE:
- break;
- case PANGO_UNDERLINE_DOUBLE:
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1, y + 4,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE, y + 4);
- /* Fall through */
- case PANGO_UNDERLINE_SINGLE:
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1, y + 2,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE, y + 2);
- break;
- case PANGO_UNDERLINE_LOW:
- gdk_draw_line (drawable, fg_gc,
- x + (x_off + ink_rect.x) / PANGO_SCALE - 1, y + (ink_rect.y + ink_rect.height) / PANGO_SCALE + 2,
- x + (x_off + ink_rect.x + ink_rect.width) / PANGO_SCALE, y + (ink_rect.y + ink_rect.height) / PANGO_SCALE + 2);
- break;
- }
+ 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]);
+}
- if (appearance->strikethrough)
- {
- gint strikethrough_y = y + (0.3 * logical_rect.y) / PANGO_SCALE;
- 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);
- }
+/* Returns a GSList of (referenced) widgets encountered while drawing.
+ */
+static GList *
+text_renderer_end (GtkTextRenderer *text_renderer)
+{
+ GList *widgets = text_renderer->widgets;
- x_off += logical_rect.width;
- }
- else /* Pixbuf or widget segment */
- {
- GObject *shaped = (*shaped_pointer)->data;
+ text_renderer->widget = NULL;
+ text_renderer->drawable = NULL;
- *shaped_pointer = (*shaped_pointer)->next;
-
- if (GDK_IS_PIXBUF (shaped))
- {
- gint width, height;
- GdkRectangle pixbuf_rect, draw_rect;
- GdkPixbuf *pixbuf;
+ text_renderer->widgets = NULL;
- pixbuf = GDK_PIXBUF (shaped);
-
- width = gdk_pixbuf_get_width (pixbuf);
- height = gdk_pixbuf_get_height (pixbuf);
+ if (text_renderer->error_color)
+ {
+ gdk_color_free (text_renderer->error_color);
+ text_renderer->error_color = NULL;
+ }
- pixbuf_rect.x = x + x_off / PANGO_SCALE;
- pixbuf_rect.y = y - height;
- pixbuf_rect.width = width;
- pixbuf_rect.height = height;
+ gdk_pango_renderer_set_drawable (GDK_PANGO_RENDERER (text_renderer), NULL);
+ gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), NULL);
- 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));
- }
- }
+ return widgets;
+}
- x_off += width * PANGO_SCALE;
- }
- 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;
+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;
- if (GTK_WIDGET_DRAWABLE (widget) &&
- gtk_widget_intersect (widget,
- &render_state->clip_rect,
- &draw_rect))
- {
- gtk_widget_draw (widget, &draw_rect);
- }
+ pango_layout_line_get_x_ranges (line, start_index, end_index, &ranges, &n_ranges);
- x_off += width * PANGO_SCALE;
- }
- else
- g_assert_not_reached (); /* not a pixbuf or widget */
- }
+ 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 *selection_gc, *fg_gc;
+ gint state;
gboolean first = TRUE;
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);
- }
+ if (GTK_WIDGET_HAS_FOCUS (text_renderer->widget))
+ state = GTK_STATE_SELECTED;
+ else
+ state = GTK_STATE_ACTIVE;
+
+ 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);
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],
+ 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_selected (text_renderer, TRUE);
+ 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_selected (text_renderer, FALSE);
+ 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);
- 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);
-
- gdk_draw_rectangle (drawable,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
+ /* 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_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), fg_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);
-
- 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);
-
+ text_renderer_set_selected (text_renderer, TRUE);
+ 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_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,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
+ 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,
- render_state->widget->style->bg_gc[GTK_STATE_SELECTED],
+ gdk_draw_rectangle (text_renderer->drawable,
+ selection_gc,
TRUE,
x + PANGO_PIXELS (line_rect.x) + PANGO_PIXELS (line_rect.width),
selection_y,
pango_layout_iter_free (iter);
}
-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 void
+on_renderer_display_closed (GdkDisplay *display,
+ gboolean is_error,
+ GtkTextRenderer *text_renderer)
{
- 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 (&render_state->clip_rect);
- gdk_region_intersect (clip_region, tmp_region);
- gdk_region_destroy (tmp_region);
-
- g_free (ranges);
- return clip_region;
+ 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);
}
-static void
-get_item_properties (PangoItem *item,
- GtkTextAppearance **appearance)
+static GtkTextRenderer *
+get_text_renderer (GdkScreen *screen)
{
- GSList *tmp_list = item->extra_attrs;
+ GtkTextRenderer *text_renderer;
- *appearance = NULL;
-
- 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
gtk_text_layout_draw (GtkTextLayout *layout,
GtkWidget *widget,
GdkDrawable *drawable,
- /* Location of the layout
- in buffer coordinates */
+ GdkGC *cursor_gc,
+ /* Location of the drawable
+ in layout coordinates */
gint x_offset,
gint y_offset,
/* Region of the layout to
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);
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);
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);
GtkTextLineDisplay *line_display;
gint selection_start_index = -1;
gint selection_end_index = -1;
+ gboolean have_strong;
+ gboolean have_weak;
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);
+ 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
+ /* 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];
-
- 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);
-
- cursor_list = cursor_list->next;
- }
-
+ have_strong = FALSE;
+ have_weak = FALSE;
+
+ cursor_list = line_display->cursors;
+ while (cursor_list)
+ {
+ GtkTextCursorDisplay *cursor = cursor_list->data;
+ if (cursor->is_strong)
+ have_strong = TRUE;
+ else
+ have_weak = TRUE;
+
+ cursor_list = cursor_list->next;
+ }
+
+ cursor_list = line_display->cursors;
+ while (cursor_list)
+ {
+ GtkTextCursorDisplay *cursor = cursor_list->data;
+ GtkTextDirection dir;
+ GdkRectangle cursor_location;
+
+ dir = line_display->direction;
+ if (have_strong && have_weak)
+ {
+ if (!cursor->is_strong)
+ dir = (dir == GTK_TEXT_DIR_RTL) ? GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+ }
+
+ 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;
+
+ gtk_draw_insertion_cursor (widget, drawable, &clip, &cursor_location,
+ cursor->is_strong,
+ dir, have_strong && have_weak);
+
+ cursor_list = cursor_list->next;
+ }
+ } /* line_display->height > 0 */
+
current_y += 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_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"