Move into pango-view/

2007-01-16  Behdad Esfahbod  <behdad@gnome.org>

        * examples/pango-view.c:
        * examples/pangocairo-view.c:
        * examples/pangoft2-view.c:
        * examples/pangox-view.c:
        * examples/pangoxft-view.c:
        * examples/renderdemo.c:
        * examples/renderdemo.h:
        * examples/test-arabic.txt:
        * examples/test-chinese.txt:
        * examples/test-devanagari.txt:
        * examples/test-gurmukhi.txt:
        * examples/test-hebrew.txt:
        * examples/test-ipa.txt:
        * examples/test-lao.txt:
        * examples/test-latin.txt:
        * examples/test-mixed.txt:
        * examples/test-syriac.txt:
        * examples/test-tamil.txt:
        * examples/test-thai.txt:
        * examples/test-tibetan.txt:
        * examples/viewer-cairo.c:
        * examples/viewer-cairo.h:
        * examples/viewer-main.c:
        * examples/viewer-pangocairo.c:
        * examples/viewer-pangoft2.c:
        * examples/viewer-pangox.c:
        * examples/viewer-pangoxft.c:
        * examples/viewer-win32.c:
        * examples/viewer-x.c:
        * examples/viewer-x.h:
        * examples/viewer.h:
        Move into pango-view/

        * Makefile.am:
        * configure.in:
        * examples/Makefile.am:
        * pango-view/Makefile.am:
        Update.


svn path=/trunk/; revision=2152

1 files changed, 0 insertions, 676 deletions

diff --git a/examples/renderdemo.c b/examples/renderdemo.c
deleted file mode 100644
index ab89b8fe..00000000
--- a/examples/renderdemo.c
+++ /dev/null
@@ -1,676 +0,0 @@
-/* renderdemo.c: Common code for rendering demos
- *
- * Copyright (C) 1999, 2004 Red Hat Software
- * 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 <errno.h>
-#include <math.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <glib.h>
-#include <glib/gprintf.h>
-#include <pango/pango.h>
-
-#include "renderdemo.h"
-
-#define DEFAULT_FONT_FAMILY "Sans"
-#define DEFAULT_FONT_SIZE 18
-
-#define _MAKE_FONT_NAME(family, size) family " " #size
-#define MAKE_FONT_NAME(family, size) _MAKE_FONT_NAME(family, size)
-
-const char *prog_name;
-
-gboolean opt_display = TRUE;
-int opt_dpi = 96;
-const char *opt_font = MAKE_FONT_NAME (DEFAULT_FONT_FAMILY, DEFAULT_FONT_SIZE);
-gboolean opt_header = FALSE;
-const char *opt_output = NULL;
-int opt_margin = 10;
-int opt_markup = FALSE;
-gboolean opt_rtl = FALSE;
-double opt_rotate = 0;
-gboolean opt_auto_dir = TRUE;
-const char *opt_text = NULL;
-gboolean opt_waterfall = FALSE;
-int opt_width = -1;
-int opt_indent = 0;
-int opt_runs = 1;
-PangoEllipsizeMode opt_ellipsize = PANGO_ELLIPSIZE_NONE;
-PangoGravity opt_gravity = PANGO_GRAVITY_SOUTH;
-PangoGravityHint opt_gravity_hint = PANGO_GRAVITY_HINT_NATURAL;
-HintMode opt_hinting = HINT_DEFAULT;
-PangoWrapMode opt_wrap = PANGO_WRAP_WORD_CHAR;
-gboolean opt_wrap_set = FALSE;
-const char *opt_pangorc = NULL;
-const PangoViewer *opt_viewer = NULL;
-
-/* Text (or markup) to render */
-static char *text;
-
-void
-fail (const char *format, ...)
-{
-  const char *msg;
-
-  va_list vap;
-  va_start (vap, format);
-  msg = g_strdup_vprintf (format, vap);
-  g_printerr ("%s: %s\n", prog_name, msg);
-
-  exit (1);
-}
-
-static PangoFontDescription *
-get_font_description (void)
-{
-  PangoFontDescription *font_description = pango_font_description_from_string (opt_font);
-
-  if ((pango_font_description_get_set_fields (font_description) & PANGO_FONT_MASK_FAMILY) == 0)
-    pango_font_description_set_family (font_description, DEFAULT_FONT_FAMILY);
-
-  if ((pango_font_description_get_set_fields (font_description) & PANGO_FONT_MASK_SIZE) == 0)
-    pango_font_description_set_size (font_description, DEFAULT_FONT_SIZE * PANGO_SCALE);
-
-  return font_description;
-}
-
-static PangoLayout *
-make_layout(PangoContext *context,
-	    const char   *text,
-	    double        size)
-{
-  static PangoFontDescription *font_description;
-  PangoDirection base_dir;
-  PangoLayout *layout;
-
-  layout = pango_layout_new (context);
-  if (opt_markup)
-    pango_layout_set_markup (layout, text, -1);
-  else
-    pango_layout_set_text (layout, text, -1);
-
-  pango_layout_set_auto_dir (layout, opt_auto_dir);
-  pango_layout_set_ellipsize (layout, opt_ellipsize);
-
-  font_description = get_font_description ();
-  if (size > 0)
-    pango_font_description_set_size (font_description, size * PANGO_SCALE);
-
-  if (opt_width > 0)
-    {
-      pango_layout_set_wrap (layout, opt_wrap);
-      pango_layout_set_width (layout, (opt_width * opt_dpi * PANGO_SCALE + 32) / 72);
-    }
-
-  if (opt_indent != 0)
-    pango_layout_set_indent (layout, (opt_indent * opt_dpi * PANGO_SCALE + 32) / 72);
-
-  base_dir = pango_context_get_base_dir (context);
-  pango_layout_set_alignment (layout,
-			      base_dir == PANGO_DIRECTION_LTR ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT);
-
-  pango_layout_set_font_description (layout, font_description);
-
-  pango_font_description_free (font_description);
-
-  return layout;
-}
-
-gchar *
-get_options_string (void)
-{
-  PangoFontDescription *font_description = get_font_description ();
-  gchar *font_name;
-  gchar *result;
-
-  if (opt_waterfall)
-    pango_font_description_unset_fields (font_description, PANGO_FONT_MASK_SIZE);
-
-  font_name = pango_font_description_to_string (font_description);
-  result = g_strdup_printf ("%s: %s (%d dpi)", opt_viewer->name, font_name, opt_dpi);
-  pango_font_description_free (font_description);
-  g_free (font_name);
-
-  return result;
-}
-
-static void
-output_body (PangoContext   *context,
-	     const char     *text,
-	     RenderCallback  render_cb,
-	     gpointer        cb_context,
-	     gpointer        cb_data,
-	     int            *width,
-	     int            *height,
-	     gboolean        supports_matrix)
-{
-  PangoLayout *layout;
-  PangoRectangle logical_rect;
-  int size, start_size, end_size, increment;
-  int x = 0, y = 0;
-  
-  if (!supports_matrix)
-    {
-      const PangoMatrix* matrix;
-      const PangoMatrix identity = PANGO_MATRIX_INIT;
-      matrix = pango_context_get_matrix (context);
-      if (matrix)
-	{
-	  x += matrix->x0;
-	  y += matrix->y0;
-	}
-      pango_context_set_matrix (context, &identity);
-    }
-
-  if (opt_waterfall)
-    {
-      start_size = 8;
-      end_size = 48;
-      increment = 4;
-    }
-  else
-    {
-      start_size = end_size = -1;
-      increment = 1;
-    }
-
-  *width = 0;
-  *height = 0;
-
-  for (size = start_size; size <= end_size; size += increment)
-    {
-      layout = make_layout (context, text, size);
-      pango_layout_get_extents (layout, NULL, &logical_rect);
-
-      if (render_cb)
-	(*render_cb) (layout, x, y+*height, cb_context, cb_data);
-
-      *width = MAX (*width, PANGO_PIXELS (logical_rect.x + logical_rect.width));
-      *width = MAX (*width, PANGO_PIXELS (pango_layout_get_width (layout)));
-      *height += PANGO_PIXELS (logical_rect.height);
-
-      g_object_unref (layout);
-    }
-}
-
-static void
-set_transform (PangoContext     *context,
-	       TransformCallback transform_cb,
-	       gpointer          cb_context,
-	       gpointer          cb_data,
-	       PangoMatrix      *matrix)
-{
-  pango_context_set_matrix (context, matrix);
-  if (transform_cb)
-    (*transform_cb) (context, matrix, cb_context, cb_data);
-}
-
-void
-do_output (PangoContext     *context,
-	   RenderCallback    render_cb,
-	   TransformCallback transform_cb,
-	   gpointer          cb_context,
-	   gpointer          cb_data,
-	   int              *width_out,
-	   int              *height_out)
-{
-  PangoLayout *layout;
-  PangoRectangle rect;
-  PangoMatrix matrix = PANGO_MATRIX_INIT;
-  PangoMatrix *orig_matrix;
-  gboolean supports_matrix;
-  int rotated_width, rotated_height;
-  int x = opt_margin;
-  int y = opt_margin;
-  int width, height;
-
-  width = 0;
-  height = 0;
-
-  orig_matrix = pango_matrix_copy (pango_context_get_matrix (context));
-  /* If the backend sets an all-zero matrix on the context,
-   * means that it doesn't support transformations.
-   */
-  supports_matrix = !orig_matrix ||
-		    (orig_matrix->xx != 0. || orig_matrix->xy != 0. ||
-		     orig_matrix->yx != 0. || orig_matrix->yy != 0. ||
-		     orig_matrix->x0 != 0. || orig_matrix->y0 != 0.);
-
-  set_transform (context, transform_cb, cb_context, cb_data, NULL);
-
-  pango_context_set_language (context, pango_language_get_default ());
-  pango_context_set_base_dir (context,
-			      opt_rtl ? PANGO_DIRECTION_RTL : PANGO_DIRECTION_LTR);
-
-  if (opt_header)
-    {
-      char *options_string = get_options_string ();
-      pango_context_set_base_gravity (context, PANGO_GRAVITY_SOUTH);
-      layout = make_layout (context, options_string, 10);
-      pango_layout_get_extents (layout, NULL, &rect);
-
-      width = MAX (width, PANGO_PIXELS (rect.width));
-      height += PANGO_PIXELS (rect.height);
-
-      if (render_cb)
-	(*render_cb) (layout, x, y, cb_context, cb_data);
-
-      y += PANGO_PIXELS (rect.height);
-
-      g_object_unref (layout);
-      g_free (options_string);
-    }
-
-  if (opt_rotate != 0)
-    {
-      if (supports_matrix)
-	pango_matrix_rotate (&matrix, opt_rotate);
-      else
-        g_printerr ("The backend does not support rotated text\n");
-    }
-
-  pango_context_set_base_gravity (context, opt_gravity);
-  pango_context_set_gravity_hint (context, opt_gravity_hint);
-
-  set_transform (context, transform_cb, cb_context, cb_data, &matrix);
-
-  output_body (context,
-	       text,
-	       NULL, NULL, NULL,
-	       &rotated_width, &rotated_height,
-	       supports_matrix);
-
-  rect.x = rect.y = 0;
-  rect.width = rotated_width;
-  rect.height = rotated_height;
-
-  pango_matrix_transform_pixel_rectangle (&matrix, &rect);
-
-  matrix.x0 = x - rect.x;
-  matrix.y0 = y - rect.y;
-
-  set_transform (context, transform_cb, cb_context, cb_data, &matrix);
-
-  if (render_cb)
-    output_body (context,
-		 text,
-		 render_cb, cb_context, cb_data,
-		 &rotated_width, &rotated_height,
-		 supports_matrix);
-
-  width = MAX (width, rect.width);
-  height += rect.height;
-
-  width += 2 * opt_margin;
-  height += 2 * opt_margin;
-
-  if (width_out)
-    *width_out = width;
-  if (height_out)
-    *height_out = height;
-
-  pango_context_set_matrix (context, orig_matrix);
-  pango_matrix_free (orig_matrix);
-}
-
-static gboolean
-parse_enum (GType       type,
-	    int        *value,
-	    const char *name,
-	    const char *arg,
-	    gpointer    data,
-	    GError **error)
-{
-  char *possible_values = NULL;
-  gboolean ret;
-
-  ret = pango_parse_enum (type,
-			  arg,
-			  value,
-			  FALSE,
-			  &possible_values);
-
-  if (!ret && error)
-    {
-      g_set_error(error,
-		  G_OPTION_ERROR, 
-		  G_OPTION_ERROR_BAD_VALUE,
-		  "Argument for %s must be one of %s",
-		  name,
-		  possible_values);
-      ret = FALSE;
-    }
-
-  g_free (possible_values);
-
-  return ret;
-}
-
-static gboolean
-parse_ellipsis (const char *name,
-		const char *arg,
-		gpointer    data,
-		GError **error)
-{
-  return parse_enum (PANGO_TYPE_ELLIPSIZE_MODE, &opt_ellipsize,
-		     name, arg, data, error);
-}
-
-static gboolean
-parse_gravity (const char *name,
-	       const char *arg,
-	       gpointer    data,
-	       GError **error)
-{
-  return parse_enum (PANGO_TYPE_GRAVITY, &opt_gravity,
-		     name, arg, data, error);
-}
-
-static gboolean
-parse_gravity_hint (const char *name,
-		    const char *arg,
-		    gpointer    data,
-		    GError **error)
-{
-  return parse_enum (PANGO_TYPE_GRAVITY_HINT, &opt_gravity_hint,
-		     name, arg, data, error);
-}
-
-static gboolean
-parse_hinting (const char *name,
-	       const char *arg,
-	       gpointer    data,
-	       GError    **error)
-{
-  gboolean ret = TRUE;
-
-  if (strcmp (arg, "none") == 0)
-    opt_hinting = HINT_NONE;
-  else if (strcmp (arg, "auto") == 0)
-    opt_hinting = HINT_AUTO;
-  else if (strcmp (arg, "full") == 0)
-    opt_hinting = HINT_FULL;
-  else
-    {
-      g_set_error(error,
-		  G_OPTION_ERROR, 
-		  G_OPTION_ERROR_BAD_VALUE,
-		  "Argument for --hinting must be one of none/auto/full");
-      ret = FALSE;
-    }
-  
-  return ret;
-}
-
-static gboolean
-parse_wrap (const char *name,
-	    const char *arg,
-	    gpointer    data,
-	    GError    **error)
-{
-  gboolean ret;
-  if ((ret = parse_enum (PANGO_TYPE_WRAP_MODE, &opt_wrap,
-			 name, arg, data, error)))
-    {
-      opt_wrap_set = TRUE;
-    }
-  return ret;
-}
-
-static gchar *
-backends_to_string (void)
-{
-  GString *backends = g_string_new (NULL);
-  const PangoViewer **viewer;
-  
-  for (viewer = viewers; *viewer; viewer++)
-    if ((*viewer)->id)
-      {
-	g_string_append (backends, (*viewer)->id);
-	g_string_append_c (backends, '/');
-      }
-  g_string_truncate (backends, MAX (0, (gint)backends->len - 1));
-  
-  return g_string_free(backends,FALSE);
-}
-
-static int
-backends_get_count (void)
-{
-  const PangoViewer **viewer;
-  int i = 0;
-
-  for (viewer = viewers; *viewer; viewer++)
-    if ((*viewer)->id)
-      i++;
-  
-  return i;
-}
-
-
-static gchar *
-backend_description (void)
-{
- GString *description  = g_string_new("Pango backend to use for rendering ");
- int backends_count = backends_get_count ();
-  
- if (backends_count > 1)
-   g_string_append_printf(description,"(default: %s)", (*viewers)->id);
- else if (backends_count == 1)
-   g_string_append_printf(description,"(only available: %s)", (*viewers)->id);
- else
-   g_string_append_printf(description,"(no backends found!)");
-
- return g_string_free(description,FALSE);
- 
-}
-
-
-static gboolean
-parse_backend (const char *name,
-	       const char *arg,
-	       gpointer    data,
-	       GError    **error)
-{
-  gboolean ret = TRUE;
-  const PangoViewer **viewer;
-
-  for (viewer = viewers; *viewer; viewer++)
-    if (!g_ascii_strcasecmp ((*viewer)->id, arg))
-      break;
-
-  if (*viewer)
-    opt_viewer = *viewer;
-  else
-    {
-      gchar *backends = backends_to_string ();
-
-      g_set_error(error,
-		  G_OPTION_ERROR, 
-		  G_OPTION_ERROR_BAD_VALUE,
-		  "Available --backend options are: %s", 
-		  backends);
-      g_free(backends);
-      ret = FALSE;
-    }
-
-  return ret;
-}
-
-
-static gboolean
-show_version(const char *name,
-	     const char *arg,
-	     gpointer    data,
-	     GError    **error)
-{
-  g_printf("%s (%s) %s\n", prog_name, PACKAGE_NAME, PACKAGE_VERSION);
-  g_printf("module interface version: %s\n", MODULE_VERSION);
-
-  if (PANGO_VERSION != pango_version())
-    g_printf("\nLinked Pango library has a different version: %s\n", pango_version_string ());
-
-  exit(0);
-}
-
-void
-parse_options (int argc, char *argv[])
-{
-  gchar *backend_options = backends_to_string();
-  GOptionFlags backend_flag = backends_get_count () > 1 ? 0 : G_OPTION_FLAG_HIDDEN;
-  gchar *backend_desc = backend_description ();
-  GOptionEntry entries[] =
-  {
-    {"no-auto-dir",	0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE,	&opt_auto_dir,
-     "No layout direction according to contents",			NULL},
-    {"backend",		0, backend_flag, G_OPTION_ARG_CALLBACK,		&parse_backend,
-     backend_desc,					     backend_options},
-    {"no-display",	'q', G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE,	&opt_display,
-     "Do not display (just write to file or whatever)",			NULL},
-    {"dpi",		0, 0, G_OPTION_ARG_INT,				&opt_dpi,
-     "Set the resolution",					    "number"},
-    {"ellipsize",	0, 0, G_OPTION_ARG_CALLBACK,			&parse_ellipsis,
-     "Ellipsization mode",				  "start/middle/end"},
-    {"font",		0, 0, G_OPTION_ARG_STRING,			&opt_font,
-     "Set the font description",			       "description"},
-    {"gravity",		0, 0, G_OPTION_ARG_CALLBACK,			&parse_gravity,
-     "Base gravity: glyph rotation",		"south/east/north/west/auto"},
-    {"gravity-hint",	0, 0, G_OPTION_ARG_CALLBACK,			&parse_gravity_hint,
-     "Gravity hint",				       "natural/strong/line"},
-    {"header",		0, 0, G_OPTION_ARG_NONE,			&opt_header,
-     "Display the options in the output",				NULL},
-    {"hinting",		0, 0, G_OPTION_ARG_CALLBACK,			&parse_hinting,
-     "Hinting style",					    "none/auto/full"},
-    {"indent",		0, 0, G_OPTION_ARG_INT,				&opt_indent,
-     "Width in points to indent paragraphs", 			    "points"},
-    {"margin",		0, 0, G_OPTION_ARG_INT,				&opt_margin,
-     "Set the margin on the output in pixels",			    "pixels"},
-    {"markup",		0, 0, G_OPTION_ARG_NONE,			&opt_markup,
-     "Interpret text as Pango markup", 					NULL},
-    {"output",		'o', 0, G_OPTION_ARG_STRING,			&opt_output,
-     "Save rendered image to output file", 			      "file"},
-    {"pangorc",		0, 0, G_OPTION_ARG_STRING,			&opt_pangorc,
-     "pangorc file to use (default is ./pangorc)",		      "file"},
-    {"rtl",		0, 0, G_OPTION_ARG_NONE,			&opt_rtl,
-     "Set base direction to right-to-left", 				NULL},
-    {"rotate",		0, 0, G_OPTION_ARG_DOUBLE,			&opt_rotate,
-     "Angle at which to rotate results",		 	   "degrees"},
-    {"runs",		'n', 0, G_OPTION_ARG_INT,			&opt_runs,
-     "Run Pango layout engine this many times",			   "integer"},
-    {"text",		't', 0, G_OPTION_ARG_STRING,			&opt_text,
-     "Text to display (instead of a file)", 			    "string"},
-    {"version",		0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, &show_version,
-     "Show version numbers",						NULL},
-    {"waterfall",	0, 0, G_OPTION_ARG_NONE,			&opt_waterfall,
-     "Create a waterfall display", 					NULL},
-    {"width",		'w', 0, G_OPTION_ARG_INT,			&opt_width,
-     "Width in points to which to wrap output",			    "points"},
-    {"wrap",		0, 0, G_OPTION_ARG_CALLBACK,			&parse_wrap,
-     "Text wrapping mode (needs a width to be set)",   "word/char/word-char"},
-    {NULL}
-  };
-  GError *error = NULL;
-  GError *parse_error = NULL;
-  GOptionContext *context;
-  size_t len;
-
-  prog_name = g_path_get_basename (argv[0]);
-  context = g_option_context_new ("- FILE");
-  g_option_context_add_main_entries (context, entries, NULL);
-  if (!g_option_context_parse (context, &argc, &argv, &parse_error))
-  {
-    if (parse_error != NULL)
-      fail("%s", parse_error->message);
-    else
-      fail("Option parse error");
-    exit(1);
-  }
-  g_option_context_free(context);
-  g_free(backend_options);
-  g_free(backend_desc);
-
-  if ((opt_text && argc != 1) || (!opt_text && argc != 2))
-    {
-      if (opt_text && argc != 1)
-	fail ("When specifying --text, no file should be given");
-	
-      g_printerr ("Usage: %s [OPTION...] FILE\n", prog_name);
-      exit (1);
-    }
-
-  /* set up the backend */
-  if (!opt_viewer)
-    {
-      opt_viewer = *viewers;
-      if (!opt_viewer)
-        fail ("No viewer backend found");
-    }
-
-  /* if wrap mode is set then width must be set */
-  if (opt_width < 0 && opt_wrap_set)
-    {
-      g_printerr ("The wrap mode only has effect if a width is set\n");
-    }
-
-  /* Get the text
-   */
-  if (opt_text)
-    {
-      text = g_strdup (opt_text);
-      len = strlen (text);
-    }
-  else
-    {
-      if (!g_file_get_contents (argv[1], &text, &len, &error))
-	fail ("%s\n", error->message);
-    }
-
-  /* Strip one trailing newline
-   */
-  if (len > 0 && text[len - 1] == '\n')
-    len--;
-  if (len > 0 && text[len - 1] == '\r')
-    len--;
-  text[len] = '\0';
-
-  /* Make sure we have valid markup
-   */
-  if (opt_markup &&
-      !pango_parse_markup (text, -1, 0, NULL, NULL, NULL, &error))
-    fail ("Cannot parse input as markup: %s", error->message);
-
-  /* Setup PANGO_RC_FILE
-   */
-  if (!opt_pangorc)
-    if (g_file_test ("./pangorc", G_FILE_TEST_IS_REGULAR))
-      opt_pangorc = "./pangorc";
-  if (opt_pangorc)
-    g_setenv ("PANGO_RC_FILE", opt_pangorc, TRUE);
-}
-
-
-void
-finalize (void)
-{
-  g_free (text);
-}