static void
set_format (GtkHTML *html, gboolean format_html)
{
HTMLGdkPainter *p, *old_p;
gtk_widget_ensure_style (GTK_WIDGET (html));
if (!plain_painter) {
gdk_painter = HTML_GDK_PAINTER (html->engine->painter);
plain_painter = HTML_GDK_PAINTER (html_plain_painter_new (GTK_WIDGET (html), TRUE));
g_object_ref (G_OBJECT (gdk_painter));
}
if (format_html) {
p = gdk_painter;
old_p = plain_painter;
} else {
p = plain_painter;
old_p = gdk_painter;
}
if (html->engine->painter != (HTMLPainter *) p) {
html_gdk_painter_unrealize (old_p);
if (html->engine->window)
html_gdk_painter_realize (p, html->engine->window);
html_font_manager_set_default (&HTML_PAINTER (p)->font_manager,
HTML_PAINTER (old_p)->font_manager.variable.face,
HTML_PAINTER (old_p)->font_manager.fixed.face,
HTML_PAINTER (old_p)->font_manager.var_size,
HTML_PAINTER (old_p)->font_manager.var_points,
HTML_PAINTER (old_p)->font_manager.fix_size,
HTML_PAINTER (old_p)->font_manager.fix_points);
html_engine_set_painter (html->engine, HTML_PAINTER (p));
html_engine_schedule_redraw (html->engine);
}
}
void
html_engine_draw_cursor_in_area (HTMLEngine *engine,
gint x,
gint y,
gint width,
gint height)
{
HTMLObject *obj;
guint offset;
gint x1, y1, x2, y2, sc_x, sc_y;
GdkRectangle pos;
GtkAdjustment *hadj, *vadj;
if ((engine->editable || engine->caret_mode) && (engine->cursor_hide_count <= 0 && !engine->thaw_idle_id)) {
html_engine_draw_table_cursor (engine);
html_engine_draw_cell_cursor (engine);
html_engine_draw_image_cursor (engine);
}
if (!cursor_enabled || engine->cursor_hide_count > 0 || !(engine->editable || engine->caret_mode) || engine->thaw_idle_id)
return;
obj = engine->cursor->object;
if (obj == NULL || engine->window == NULL)
return;
offset = engine->cursor->offset;
if (width < 0 || height < 0) {
width = html_engine_get_doc_width (engine);
height = html_engine_get_doc_height (engine);
x = 0;
y = 0;
}
html_object_get_cursor (obj, engine->painter, offset, &x1, &y1, &x2, &y2);
while (obj) {
if (html_object_is_frame (obj)) {
x1 -= HTML_EMBEDDED (obj)->abs_x;
x2 -= HTML_EMBEDDED (obj)->abs_x;
y1 -= HTML_EMBEDDED (obj)->abs_y;
y2 -= HTML_EMBEDDED (obj)->abs_y;
break;
}
obj = obj->parent;
}
/* get scroll offset */
hadj = gtk_layout_get_hadjustment (GTK_LAYOUT (engine->widget));
vadj = gtk_layout_get_vadjustment (GTK_LAYOUT (engine->widget));
sc_x = (gint) gtk_adjustment_get_value (hadj);
sc_y = (gint) gtk_adjustment_get_value (vadj);
pos.x = x1 - sc_x;
pos.y = y1 - sc_y;
pos.width = x2 - x1;
pos.height = y2 - y1;
gtk_im_context_set_cursor_location (GTK_HTML (engine->widget)->priv->im_context, &pos);
if (clip_cursor (engine, x, y, width, height, &x1, &y1, &x2, &y2)) {
cairo_t *cr;
gboolean using_painter_cr;
using_painter_cr = engine->painter &&
HTML_IS_GDK_PAINTER (engine->painter) &&
HTML_GDK_PAINTER (engine->painter)->cr != NULL;
if (using_painter_cr) {
HTMLGdkPainter *gdk_painter = HTML_GDK_PAINTER (engine->painter);
cr = gdk_painter->cr;
cairo_save (cr);
x1 -= gdk_painter->x1;
y1 -= gdk_painter->y1;
x2 -= gdk_painter->x1;
y2 -= gdk_painter->y1;
} else {
cr = gdk_cairo_create (engine->window);
}
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_set_operator (cr, CAIRO_OPERATOR_DIFFERENCE);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_move_to (cr, x1 + 0.5, y1 + 0.5);
cairo_line_to (cr, x2 + 0.5, y2 - 0.5);
cairo_set_line_width (cr, 1);
cairo_stroke (cr);
if (using_painter_cr)
cairo_restore (cr);
else
cairo_destroy (cr);
}
}