1 files changed, 0 insertions, 425 deletions

diff --git a/examples/viewer-pangocairo.c b/examples/viewer-pangocairo.c
deleted file mode 100644
index 16c6d8bf..00000000
--- a/examples/viewer-pangocairo.c
+++ /dev/null
@@ -1,425 +0,0 @@
-/* viewer-pangocairo.c: PangoCairo viewer backend.
- *
- * Copyright (C) 1999,2004,2005 Red Hat, Inc.
- * Copyright (C) 2001 Sun Microsystems
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library 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.
- */
-
-#include <config.h>
-
-#include "renderdemo.h"
-#include "viewer-cairo.h"
-
-#include <pango/pangocairo.h>
-
-typedef struct
-{
-  const CairoViewerIface *iface;
-
-  gpointer backend;
-
-  PangoFontMap *fontmap;
-  cairo_font_options_t *font_options;
-} CairoViewer;
-
-/* TODO: hinting */
-static gpointer
-pangocairo_view_create (const PangoViewer *klass)
-{
-  CairoViewer *instance;
-
-  instance = g_slice_new (CairoViewer);
-
-  instance->iface = get_default_cairo_viewer_iface ();
-  instance->backend = instance->iface->backend_class->create (instance->iface->backend_class);
-
-  instance->fontmap = pango_cairo_font_map_get_default ();
-  pango_cairo_font_map_set_resolution (PANGO_CAIRO_FONT_MAP (instance->fontmap), opt_dpi);
-
-  instance->font_options = cairo_font_options_create ();
-  if (opt_hinting != HINT_DEFAULT)
-    {
-      cairo_font_options_set_hint_metrics (instance->font_options, CAIRO_HINT_METRICS_ON);
-
-      if (opt_hinting == HINT_NONE)
-	cairo_font_options_set_hint_style (instance->font_options, CAIRO_HINT_STYLE_NONE);
-      else if (opt_hinting == HINT_FULL)
-	cairo_font_options_set_hint_style (instance->font_options, CAIRO_HINT_STYLE_FULL);
-    }
-
-  return instance;
-}
-
-static void 
-pangocairo_view_destroy (gpointer instance)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-
-  cairo_font_options_destroy (c->font_options);
-
-  g_object_unref (c->fontmap);
-
-  c->iface->backend_class->destroy (c->backend);
-
-  g_slice_free (CairoViewer, c);
-}
-
-static PangoContext *
-pangocairo_view_get_context (gpointer instance)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-  PangoContext *context;
-
-  context = pango_cairo_font_map_create_context (PANGO_CAIRO_FONT_MAP (c->fontmap));
-  pango_cairo_context_set_font_options (context, c->font_options);
-
-  return context;
-}
-
-typedef struct 
-{
-  gpointer backend;
-
-  cairo_surface_t *cairo;
-} CairoSurface;
-
-static gpointer
-pangocairo_view_create_surface (gpointer instance,
-			        int      width,
-				int      height)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-  CairoSurface *surface;
-
-  surface = g_slice_new (CairoSurface);
-
-  surface->backend = c->iface->backend_class->create_surface (c->backend,
-							      width, height);
-
-  surface->cairo = c->iface->create_surface (c->backend,
-					     surface->backend,
-					     width, height);
-
-  return surface;
-}
-
-static void 
-pangocairo_view_destroy_surface (gpointer instance,
-				 gpointer surface)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-  CairoSurface *c_surface = (CairoSurface *) surface;
-
-  c->iface->backend_class->destroy_surface (c->backend, c_surface->backend);
-  cairo_surface_destroy (c_surface->cairo);
-
-  g_slice_free (CairoSurface, surface);
-}
-
-static void
-render_callback (PangoLayout *layout,
-		 int          x,
-		 int          y,
-		 gpointer     context,
-		 gpointer     data)
-{
-  cairo_t *cr = (cairo_t *) context;
-  gboolean show_borders = GPOINTER_TO_UINT (data) == 0xdeadbeef;
-
-  cairo_save (cr);
-  cairo_translate (cr, x, y);
-
-  if (show_borders)
-    {
-      cairo_pattern_t *pattern;
-      PangoRectangle ink, logical;
-      double lw = cairo_get_line_width (cr);
-      PangoLayoutIter* iter;
-      
-      pango_layout_get_extents (layout, &ink, &logical);
-
-      /* draw resolved gravity "roof" in blue */
-      cairo_save (cr);
-      cairo_translate (cr,
-		       (double)logical.x / PANGO_SCALE,
-		       (double)logical.y / PANGO_SCALE);
-      cairo_scale     (cr,
-		       (double)logical.width / PANGO_SCALE * 0.5,
-		       (double)logical.height / PANGO_SCALE * 0.5);
-      cairo_translate   (cr,  1.0,  1.0);
-      cairo_rotate (cr,
-	pango_gravity_to_rotation (
-	  pango_context_get_base_gravity (
-	    pango_layout_get_context (layout))));
-      cairo_move_to     (cr, -1.0, -1.0);
-      cairo_rel_line_to (cr, +1.0, -0.2); /* /   */
-      cairo_rel_line_to (cr, +1.0, +0.2); /*   \ */
-      cairo_close_path  (cr);             /*  -  */
-      pattern = cairo_pattern_create_linear (0, -1.0, 0, -1.2);
-      cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0.0, 0.0, 1.0, 0.0);
-      cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0.0, 0.0, 1.0, 0.15);
-      cairo_set_source (cr, pattern);
-      cairo_fill (cr);
-      /* once more, without close_path this time */
-      cairo_move_to     (cr, -1.0, -1.0);
-      cairo_rel_line_to (cr, +1.0, -0.2); /* /   */
-      cairo_rel_line_to (cr, +1.0, +0.2); /*   \ */
-      /* silly line_width is not locked :(. get rid of scale. */
-      cairo_restore (cr);
-      cairo_save (cr);
-      cairo_set_source_rgba (cr, 0.0, 0.0, 0.7, 0.2);
-      cairo_stroke (cr);
-      cairo_restore (cr);
-      
-
-      /* draw block progression arrow in green */
-      cairo_save (cr);
-      cairo_translate (cr,
-		       (double)logical.x / PANGO_SCALE,
-		       (double)logical.y / PANGO_SCALE);
-      cairo_scale     (cr,
-		       (double)logical.width / PANGO_SCALE * 0.5,
-		       (double)logical.height / PANGO_SCALE * 0.5);
-      cairo_translate   (cr,  1.0,  1.0);
-      cairo_move_to     (cr, -0.4, -0.7);
-      cairo_rel_line_to (cr, +0.8,  0.0); /*  --   */
-      cairo_rel_line_to (cr,  0.0, +0.9); /*    |  */
-      cairo_rel_line_to (cr, +0.4,  0.0); /*     - */
-      cairo_rel_line_to (cr, -0.8, +0.5); /*    /  */
-      cairo_rel_line_to (cr, -0.8, -0.5); /*  \    */
-      cairo_rel_line_to (cr, +0.4,  0.0); /* -     */
-      cairo_close_path  (cr);             /*  |    */
-      pattern = cairo_pattern_create_linear (0, -0.7, 0, 0.7);
-      cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0.0, 1.0, 0.0, 0.0);
-      cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0.0, 1.0, 0.0, 0.15);
-      cairo_set_source (cr, pattern);
-      cairo_fill_preserve (cr);
-      /* silly line_width is not locked :(. get rid of scale. */
-      cairo_restore (cr);
-      cairo_save (cr);
-      cairo_set_source_rgba (cr, 0.0, 0.7, 0.0, 0.2);
-      cairo_stroke (cr);
-      cairo_restore (cr);
-      
-      /* draw baselines with line direction arrow in orange */
-      cairo_save (cr);
-      cairo_set_source_rgba (cr, 1.0, 0.5, 0.0, 0.5);
-      iter = pango_layout_get_iter (layout);
-      do
-        {
-	  PangoLayoutLine *line = pango_layout_iter_get_line (iter);
-	  double width = (double)logical.width / PANGO_SCALE;
-
-	  y = pango_layout_iter_get_baseline (iter);
-	  cairo_save (cr);
-	  cairo_translate (cr,
-			 (double)logical.x / PANGO_SCALE + width * 0.5,
-			 (double)y / PANGO_SCALE);
-	  if (line->resolved_dir)
-	    cairo_scale (cr, -1, 1);
-	  cairo_move_to     (cr, -width * .5, -lw*0.2);
-	  cairo_rel_line_to (cr, +width * .9, -lw*0.3);
-	  cairo_rel_line_to (cr,  0,          -lw);
-	  cairo_rel_line_to (cr, +width * .1, +lw*1.5);
-	  cairo_rel_line_to (cr, -width * .1, +lw*1.5);
-	  cairo_rel_line_to (cr, 0,           -lw);
-	  cairo_rel_line_to (cr, -width * .9, -lw*0.3);
-	  cairo_close_path (cr);
-	  cairo_fill (cr);
-	  cairo_restore (cr);
-        }
-      while (pango_layout_iter_next_line (iter));
-      pango_layout_iter_free (iter);
-      cairo_restore (cr);
-
-      /* draw the logical rect in red */
-      cairo_save (cr);
-      cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 0.5);
-      cairo_rectangle (cr,
-		       (double)logical.x / PANGO_SCALE - lw / 2,
-		       (double)logical.y / PANGO_SCALE - lw / 2,
-		       (double)logical.width / PANGO_SCALE + lw,
-		       (double)logical.height / PANGO_SCALE + lw);
-      cairo_stroke (cr);
-      cairo_restore (cr);
-
-      /* draw the ink rect in green */
-      cairo_save (cr);
-      cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 0.5);
-      cairo_rectangle (cr,
-		       (double)ink.x / PANGO_SCALE - lw / 2,
-		       (double)ink.y / PANGO_SCALE - lw / 2,
-		       (double)ink.width / PANGO_SCALE + lw,
-		       (double)ink.height / PANGO_SCALE + lw);
-      cairo_stroke (cr);
-      cairo_restore (cr);
-    }
-
-  pango_cairo_show_layout (cr, layout);
-
-  cairo_restore (cr);
-}
-
-static void
-transform_callback (PangoContext *context,
-		    PangoMatrix  *matrix,
-		    gpointer      cr_context,
-		    gpointer      state)
-{
-  cairo_t *cr = (cairo_t *)cr_context;
-  cairo_matrix_t cairo_matrix;
-
-  if (matrix)
-    {
-      cairo_matrix.xx = matrix->xx;
-      cairo_matrix.yx = matrix->yx;
-      cairo_matrix.xy = matrix->xy;
-      cairo_matrix.yy = matrix->yy;
-      cairo_matrix.x0 = matrix->x0;
-      cairo_matrix.y0 = matrix->y0;
-    }
-  else
-    {
-      cairo_matrix_init_identity (&cairo_matrix);
-    }
-
-  cairo_set_matrix (cr, &cairo_matrix);
-      
-  pango_cairo_update_context (cr, context);
-}
-
-static void 
-pangocairo_view_render (gpointer      instance,
-			gpointer      surface,
-			PangoContext *context,
-			int           width,
-			int           height,
-			gpointer      state)
-{
-  cairo_t *cr;
-  CairoSurface *c_surface = (CairoSurface *) surface;
-
-  if (!surface)
-    {
-      cairo_surface_t *cs;
-      /* This is annoying ... we have to create a temporary surface just to
-       * get the extents of the text.
-       */
-      cs = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 1, 1);
-      cr = cairo_create (cs);
-      cairo_surface_destroy (cs);
-    }
-  else
-    cr = cairo_create (c_surface->cairo);
-
-  transform_callback (context, NULL, cr, state);
-
-  cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
-  cairo_paint (cr);
-  
-  cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
-  do_output (context, render_callback, transform_callback, cr, state, NULL, NULL);
-
-  cairo_destroy (cr);
-}
-
-#ifdef HAVE_CAIRO_PNG
-static cairo_status_t
-write_func (void                *closure,
-	    const unsigned char *data,
-	    unsigned int         length)
-{
-  FILE *stream = (FILE *) closure;
-  unsigned int l;
-
-  l = fwrite (data, 1, length, stream);
-
-  return l == length ? CAIRO_STATUS_SUCCESS : CAIRO_STATUS_WRITE_ERROR;
-}
-
-static void
-pangocairo_view_write (gpointer instance,
-		       gpointer surface,
-		       FILE    *stream,
-		       int      width,
-		       int      height)
-{
-  CairoSurface *c_surface = (CairoSurface *) surface;
-
-  cairo_surface_write_to_png_stream (c_surface->cairo, write_func, stream);
-}
-#endif
-
-static gpointer
-pangocairo_view_create_window (gpointer    instance,
-			       const char *title,
-			       int         width,
-			       int         height)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-
-  return c->iface->backend_class->create_window (c->backend,
-						 title,
-						 width, height);
-}
-
-static void
-pangocairo_view_destroy_window (gpointer instance,
-				gpointer window)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-
-  c->iface->backend_class->destroy_window (c->backend,
-					   window);
-}
-
-static gpointer
-pangocairo_view_display (gpointer instance,
-			 gpointer surface,
-			 gpointer window,
-			 int width, int height,
-			 gpointer state)
-{
-  CairoViewer *c = (CairoViewer *) instance;
-  CairoSurface *c_surface = (CairoSurface *) surface;
-
-  return c->iface->backend_class->display (c->backend,
-					   c_surface->backend,
-					   window,
-					   width, height,
-					   state);
-}
-
-const PangoViewer pangocairo_viewer = {
-  "PangoCairo",
-  "cairo",
-  NULL,
-  pangocairo_view_create,
-  pangocairo_view_destroy,
-  pangocairo_view_get_context,
-  pangocairo_view_create_surface,
-  pangocairo_view_destroy_surface,
-  pangocairo_view_render,
-#ifdef HAVE_CAIRO_PNG
-  pangocairo_view_write,
-#else
-  NULL,
-#endif
-  pangocairo_view_create_window,
-  pangocairo_view_destroy_window,
-  pangocairo_view_display
-};