GtkTextView: don't popdown a bubble if we don't have one

[~andy/gtk] / gtk / gtkprintcontext.c

diff --git a/gtk/gtkprintcontext.c b/gtk/gtkprintcontext.c
index 26e5a56c705172a797e5da90be2091c33b5194e2..4d55b75e7858bbedfc07c522e5ea8ab054230e6c 100644 (file)
--- a/gtk/gtkprintcontext.c
+++ b/gtk/gtkprintcontext.c
@@ -13,14 +13,89 @@
  * 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "config.h"
 #include "gtkprintoperation-private.h"
 
+
+/**
+ * SECTION:gtkprintcontext
+ * @Short_description: Encapsulates context for drawing pages
+ * @Title: GtkPrintContext
+ *
+ * A GtkPrintContext encapsulates context information that is required when
+ * drawing pages for printing, such as the cairo context and important
+ * parameters like page size and resolution. It also lets you easily
+ * create #PangoLayout and #PangoContext objects that match the font metrics
+ * of the cairo surface.
+ *
+ * GtkPrintContext objects gets passed to the #GtkPrintOperation::begin-print,
+ * #GtkPrintOperation::end-print, #GtkPrintOperation::request-page-setup and
+ * #GtkPrintOperation::draw-page signals on the #GtkPrintOperation.
+ *
+ * <example>
+ * <title>Using GtkPrintContext in a #GtkPrintOperation::draw-page callback</title>
+ * <programlisting>
+ * static void
+ * draw_page (GtkPrintOperation *operation,
+ *        GtkPrintContext   *context,
+ *        int                page_nr)
+ * {
+ *   cairo_t *cr;
+ *   PangoLayout *layout;
+ *   PangoFontDescription *desc;
+ *
+ *   cr = gtk_print_context_get_cairo_context (context);
+ *
+ *   // Draw a red rectangle, as wide as the paper (inside the margins)
+ *   cairo_set_source_rgb (cr, 1.0, 0, 0);
+ *   cairo_rectangle (cr, 0, 0, gtk_print_context_get_width (context), 50);
+ *
+ *   cairo_fill (cr);
+ *
+ *   // Draw some lines
+ *   cairo_move_to (cr, 20, 10);
+ *   cairo_line_to (cr, 40, 20);
+ *   cairo_arc (cr, 60, 60, 20, 0, M_PI);
+ *   cairo_line_to (cr, 80, 20);
+ *
+ *   cairo_set_source_rgb (cr, 0, 0, 0);
+ *   cairo_set_line_width (cr, 5);
+ *   cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+ *   cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ *
+ *   cairo_stroke (cr);
+ *
+ *   // Draw some text
+ *   layout = gtk_print_context_create_layout (context);
+ *   pango_layout_set_text (layout, "Hello World! Printing is easy", -1);
+ *   desc = pango_font_description_from_string ("sans 28");
+ *   pango_layout_set_font_description (layout, desc);
+ *   pango_font_description_free (desc);
+ *
+ *   cairo_move_to (cr, 30, 20);
+ *   pango_cairo_layout_path (cr, layout);
+ *
+ *   // Font Outline
+ *   cairo_set_source_rgb (cr, 0.93, 1.0, 0.47);
+ *   cairo_set_line_width (cr, 0.5);
+ *   cairo_stroke_preserve (cr);
+ *
+ *   // Font Fill
+ *   cairo_set_source_rgb (cr, 0, 0.0, 1.0);
+ *   cairo_fill (cr);
+ *
+ *   g_object_unref (layout);
+ * }
+ * </programlisting>
+ * </example>
+ *
+ * Printing support was added in GTK+ 2.10.
+ */
+
+
 typedef struct _GtkPrintContextClass GtkPrintContextClass;
 
 #define GTK_IS_PRINT_CONTEXT_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PRINT_CONTEXT))
@@ -139,7 +214,7 @@ gtk_print_context_set_cairo_context (GtkPrintContext *context,
   switch (context->op->priv->unit)
     {
     default:
-    case GTK_UNIT_PIXEL:
+    case GTK_UNIT_NONE:
       /* Do nothing, this is the cairo default unit */
       context->pixels_per_unit_x = 1.0;
       context->pixels_per_unit_y = 1.0;
@@ -210,6 +285,36 @@ _gtk_print_context_rotate_according_to_orientation (GtkPrintContext *context)
     }
 }
 
+void
+_gtk_print_context_reverse_according_to_orientation (GtkPrintContext *context)
+{
+  cairo_t *cr = context->cr;
+  cairo_matrix_t matrix;
+  gdouble width, height;
+
+  width = gtk_page_setup_get_paper_width (context->page_setup, GTK_UNIT_INCH);
+  width = width * context->surface_dpi_x / context->pixels_per_unit_x;
+  height = gtk_page_setup_get_paper_height (context->page_setup, GTK_UNIT_INCH);
+  height = height * context->surface_dpi_y / context->pixels_per_unit_y;
+
+  switch (gtk_page_setup_get_orientation (context->page_setup))
+    {
+    default:
+    case GTK_PAGE_ORIENTATION_PORTRAIT:
+    case GTK_PAGE_ORIENTATION_LANDSCAPE:
+      break;
+    case GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT:
+    case GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE:
+      cairo_translate (cr, width, height);
+      cairo_matrix_init (&matrix,
+                        -1,  0,
+                         0, -1,
+                         0,  0);
+      cairo_transform (cr, &matrix);
+      break;
+    }
+}
+
 void
 _gtk_print_context_translate_into_margin (GtkPrintContext *context)
 {
@@ -217,7 +322,7 @@ _gtk_print_context_translate_into_margin (GtkPrintContext *context)
 
   g_return_if_fail (GTK_IS_PRINT_CONTEXT (context));
 
-  /* We do it this way to also handle GTK_UNIT_PIXELS */
+  /* We do it this way to also handle GTK_UNIT_NONE */
   left = gtk_page_setup_get_left_margin (context->page_setup, GTK_UNIT_INCH);
   top = gtk_page_setup_get_top_margin (context->page_setup, GTK_UNIT_INCH);
 
@@ -470,7 +575,7 @@ gtk_print_context_create_pango_context (GtkPrintContext *context)
 
   g_return_val_if_fail (GTK_IS_PRINT_CONTEXT (context), NULL);
   
-  pango_context = pango_cairo_font_map_create_context (PANGO_CAIRO_FONT_MAP (_gtk_print_context_get_fontmap (context)));
+  pango_context = pango_font_map_create_context (_gtk_print_context_get_fontmap (context));
 
   options = cairo_font_options_create ();
   cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_OFF);