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aece642adb
Make sure users get the idea that clutter_init()
has a return value that needs to be checked.
These were fixed via sed magic:
sed -i -s -e "s/clutter_init (.*)/\
if (& != CLUTTER_INIT_SUCCESS)\n return 1/"\
doc/*/*/*.{c,xml} doc/*/*.xml
http://bugzilla.clutter-project.org/show_bug.cgi?id=2574
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
#include <stdlib.h>
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#include "cb-button.h"
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/* colors */
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static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
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static const ClutterColor white_color = { 0xff, 0xff, 0xff, 0xff };
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static const ClutterColor yellow_color = { 0x88, 0x88, 0x00, 0xff };
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/* click handler */
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static void
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clicked (CbButton *button,
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gpointer data)
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{
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const gchar *current_text;
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g_debug ("Clicked");
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current_text = cb_button_get_text (button);
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if (g_strcmp0 (current_text, "hello") == 0)
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cb_button_set_text (button, "world");
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else
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cb_button_set_text (button, "hello");
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}
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int
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main (int argc,
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char *argv[])
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{
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ClutterActor *stage;
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ClutterActor *button;
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ClutterConstraint *align_x_constraint;
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ClutterConstraint *align_y_constraint;
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if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
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return 1;
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stage = clutter_stage_new ();
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clutter_actor_set_size (stage, 400, 400);
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
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g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
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button = cb_button_new ();
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cb_button_set_text (CB_BUTTON (button), "hello");
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/* the following is equivalent to the two lines above:
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*
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* button = g_object_new (CB_TYPE_BUTTON,
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* "text", "winkle",
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* NULL);
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*
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* because we defined a set_property function, which can accept
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* a PROP_TEXT parameter, GObject can create a button and set one
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* or more properties with a single call to g_object_new()
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*/
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/* note that the size of the button is left to Clutter's size requisition */
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cb_button_set_text_color (CB_BUTTON (button), &white_color);
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cb_button_set_background_color (CB_BUTTON (button), &yellow_color);
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g_signal_connect (button, "clicked", G_CALLBACK (clicked), NULL);
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align_x_constraint = clutter_align_constraint_new (stage,
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CLUTTER_ALIGN_X_AXIS,
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0.5);
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align_y_constraint = clutter_align_constraint_new (stage,
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CLUTTER_ALIGN_Y_AXIS,
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0.5);
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clutter_actor_add_constraint (button, align_x_constraint);
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clutter_actor_add_constraint (button, align_y_constraint);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), button);
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clutter_actor_show (stage);
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clutter_main ();
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return EXIT_SUCCESS;
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}
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