test/text-transform.c

   1 /*
   2  * Copyright © 2006 Mozilla Corporation
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software
   5  * and its documentation for any purpose is hereby granted without
   6  * fee, provided that the above copyright notice appear in all copies
   7  * and that both that copyright notice and this permission notice
   8  * appear in supporting documentation, and that the name of
   9  * Mozilla Corporation not be used in advertising or publicity pertaining to
  10  * distribution of the software without specific, written prior
  11  * permission. Mozilla Corporation makes no representations about the
  12  * suitability of this software for any purpose.  It is provided "as
  13  * is" without express or implied warranty.
  14  *
  15  * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL,
  18  * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  20  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
  21  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  *
  23  * Author: Vladimir Vukicevic <vladimir@pobox.com>
  24  */
  25
  26 #include "cairo-test.h"
  27
  28 static cairo_test_draw_function_t draw;
  29
  30 #define SIZE 100
  31 #define PAD 5
  32
  33 #define FONT_SIZE 32.0
  34
  35 const char png_filename[] = "romedalen.png";
  36
  37 cairo_test_t test = {
  38     "text-transform",
  39     "Test various applications of the font matrix",
  40     SIZE, SIZE,
  41     draw
  42 };
  43
  44 static void
  45 draw_text (cairo_t *cr)
  46 {
  47     cairo_matrix_t tm;
  48
  49     /* skew */
  50     cairo_matrix_init (&tm, 1, 0,
  51                        -0.25, 1,
  52                        0, 0);
  53     cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE);
  54     cairo_set_font_matrix (cr, &tm);
  55
  56     cairo_new_path (cr);
  57     cairo_move_to (cr, 50, SIZE-PAD);
  58     cairo_show_text (cr, "A");
  59
  60     /* rotate and scale */
  61     cairo_matrix_init_rotate (&tm, M_PI / 2);
  62     cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE * 2.0);
  63     cairo_set_font_matrix (cr, &tm);
  64
  65     cairo_new_path (cr);
  66     cairo_move_to (cr, PAD, PAD + 25);
  67     cairo_show_text (cr, "A");
  68
  69     cairo_matrix_init_rotate (&tm, M_PI / 2);
  70     cairo_matrix_scale (&tm, FONT_SIZE * 2.0, FONT_SIZE);
  71     cairo_set_font_matrix (cr, &tm);
  72
  73     cairo_new_path (cr);
  74     cairo_move_to (cr, PAD, PAD + 50);
  75     cairo_show_text (cr, "A");
  76 }
  77
  78 static cairo_test_status_t
  79 draw (cairo_t *cr, int width, int height)
  80 {
  81     cairo_pattern_t *pattern;
  82
  83     cairo_set_source_rgb (cr, 1., 1., 1.);
  84     cairo_paint (cr);
  85
  86     cairo_set_source_rgb (cr, 0., 0., 0.);
  87
  88     cairo_select_font_face (cr, "Bitstream Vera Sans",
  89                             CAIRO_FONT_SLANT_NORMAL,
  90                             CAIRO_FONT_WEIGHT_NORMAL);
  91
  92     draw_text (cr);
  93
  94     cairo_translate (cr, SIZE, SIZE);
  95     cairo_rotate (cr, M_PI);
  96
  97     pattern = cairo_test_create_pattern_from_png (png_filename);
  98     cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
  99     cairo_set_source (cr, pattern);
 100     cairo_pattern_destroy (pattern);
 101
 102     draw_text (cr);
 103
 104     return CAIRO_TEST_SUCCESS;
 105 }
 106
 107 int
 108 main (void)
 109 {
 110     return cairo_test (&test);
 111 }