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-rw-r--r--src/cairo-tests/text.cpp111
1 files changed, 111 insertions, 0 deletions
diff --git a/src/cairo-tests/text.cpp b/src/cairo-tests/text.cpp
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+++ b/src/cairo-tests/text.cpp
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+/*
+ * Copyright 2014 © Samsung Research America, Silicon Valley
+ *
+ * Use of this source code is governed by the 3-Clause BSD license
+ * specified in the COPYING file included with this source code.
+ */
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <cairo.h>
+
+#include "caskbench.h"
+#include "caskbench_context.h"
+#include "cairo-shapes.h"
+
+// This test converts a text string to glyphs and displays it at various font sizes
+
+static int max_dim;
+static char rand_text_array[19][100];
+
+static void
+gen_random(char *s, const int len) {
+ static const char alphanum[] =
+ "ABCD EFG HIJKL MNOPQ RSTUVW XYZ";
+
+ for (int i = 0; i < len; ++i) {
+ s[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+ }
+
+ s[len] = 0;
+}
+
+int
+ca_setup_text(caskbench_context_t *ctx)
+{
+ max_dim = MIN (ctx->canvas_width, ctx->canvas_height)/2;
+ return 1;
+}
+
+void
+ca_teardown_text(void)
+{
+}
+
+int
+ca_test_text(caskbench_context_t *ctx)
+{
+ cairo_t *cr = ctx->cairo_cr;
+ double font_size = 18;
+ int ypos = 15, xpos = 0;
+ int num_glyphs = 0, num_clusters = 0;
+
+ double font_factor = 0.5;
+
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ cairo_rectangle (cr, 0, 0, ctx->canvas_width ,ctx->canvas_height);
+ cairo_fill (cr);
+ for (int i = 0; i < ctx->size; i++)
+ {
+ num_glyphs = 0;
+ num_clusters = 0;
+ cairo_set_font_size (cr, font_size);
+ cairoRandomizeColor (ctx);
+
+ cairo_status_t status;
+ cairo_scaled_font_t *font;
+ font = cairo_get_scaled_font (cr);
+ cairo_glyph_t *glyphs = NULL;
+ cairo_text_cluster_t *clusters = NULL;
+ cairo_text_cluster_flags_t cluster_flags;
+
+ char text[(int)font_size];
+ gen_random (text,font_size);
+
+ status = cairo_scaled_font_text_to_glyphs (font,
+ xpos, ypos,
+ text, font_size,
+ &glyphs, &num_glyphs,
+ &clusters, &num_clusters, &cluster_flags);
+
+ if (status == CAIRO_STATUS_SUCCESS) {
+ cairo_show_text_glyphs (cr,
+ text,font_size,
+ glyphs, num_glyphs,
+ clusters, num_clusters, cluster_flags);
+ }
+
+ font_size = font_size+font_factor;
+ ypos += (font_size/2);
+ if (font_size >= 36)
+ font_size = 36;
+ if (ypos > ctx->canvas_height/2)
+ font_factor = -0.5;
+ if (font_size < 18)
+ font_size = 18;
+ }
+ return 1;
+}
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :