forked from AuroraMiddleware/gtk
199 lines
6.5 KiB
C
199 lines
6.5 KiB
C
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#include <gtk/gtk.h>
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typedef struct _ProgressData {
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GtkWidget *window;
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GtkWidget *pbar;
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int timer;
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gboolean activity_mode;
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} ProgressData;
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/* Update the value of the progress bar so that we get
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* some movement */
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static gboolean progress_timeout( gpointer data )
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{
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ProgressData *pdata = (ProgressData *)data;
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gdouble new_val;
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if (pdata->activity_mode)
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gtk_progress_bar_pulse (GTK_PROGRESS_BAR (pdata->pbar));
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else
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{
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/* Calculate the value of the progress bar using the
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* value range set in the adjustment object */
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new_val = gtk_progress_bar_get_fraction (GTK_PROGRESS_BAR (pdata->pbar)) + 0.01;
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if (new_val > 1.0)
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new_val = 0.0;
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/* Set the new value */
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gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (pdata->pbar), new_val);
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}
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/* As this is a timeout function, return TRUE so that it
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* continues to get called */
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return TRUE;
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}
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/* Callback that toggles the text display within the progress bar trough */
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static void toggle_show_text( GtkWidget *widget,
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ProgressData *pdata )
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{
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const gchar *text;
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text = gtk_progress_bar_get_text (GTK_PROGRESS_BAR (pdata->pbar));
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if (text && *text)
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gtk_progress_bar_set_text (GTK_PROGRESS_BAR (pdata->pbar), "");
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else
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gtk_progress_bar_set_text (GTK_PROGRESS_BAR (pdata->pbar), "some text");
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}
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/* Callback that toggles the activity mode of the progress bar */
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static void toggle_activity_mode( GtkWidget *widget,
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ProgressData *pdata )
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{
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pdata->activity_mode = !pdata->activity_mode;
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if (pdata->activity_mode)
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gtk_progress_bar_pulse (GTK_PROGRESS_BAR (pdata->pbar));
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else
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gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (pdata->pbar), 0.0);
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}
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/* Callback that toggles the orientation of the progress bar */
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static void toggle_orientation( GtkWidget *widget,
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ProgressData *pdata )
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{
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switch (gtk_progress_bar_get_orientation (GTK_PROGRESS_BAR (pdata->pbar))) {
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case GTK_PROGRESS_LEFT_TO_RIGHT:
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gtk_progress_bar_set_orientation (GTK_PROGRESS_BAR (pdata->pbar),
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GTK_PROGRESS_RIGHT_TO_LEFT);
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break;
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case GTK_PROGRESS_RIGHT_TO_LEFT:
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gtk_progress_bar_set_orientation (GTK_PROGRESS_BAR (pdata->pbar),
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GTK_PROGRESS_LEFT_TO_RIGHT);
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break;
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default:;
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/* do nothing */
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}
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}
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/* Clean up allocated memory and remove the timer */
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static void destroy_progress( GtkWidget *widget,
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ProgressData *pdata)
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{
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g_source_remove (pdata->timer);
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pdata->timer = 0;
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pdata->window = NULL;
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g_free (pdata);
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gtk_main_quit ();
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}
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int main( int argc,
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char *argv[])
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{
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ProgressData *pdata;
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GtkWidget *align;
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GtkWidget *separator;
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GtkWidget *table;
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GtkWidget *button;
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GtkWidget *check;
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GtkWidget *vbox;
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gtk_init (&argc, &argv);
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/* Allocate memory for the data that is passed to the callbacks */
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pdata = g_malloc (sizeof (ProgressData));
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pdata->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_resizable (GTK_WINDOW (pdata->window), TRUE);
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g_signal_connect (G_OBJECT (pdata->window), "destroy",
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G_CALLBACK (destroy_progress),
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(gpointer) pdata);
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gtk_window_set_title (GTK_WINDOW (pdata->window), "GtkProgressBar");
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gtk_container_set_border_width (GTK_CONTAINER (pdata->window), 0);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, FALSE, 5);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 10);
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gtk_container_add (GTK_CONTAINER (pdata->window), vbox);
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gtk_widget_show (vbox);
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/* Create a centering alignment object */
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align = gtk_alignment_new (0.5, 0.5, 0, 0);
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gtk_box_pack_start (GTK_BOX (vbox), align, FALSE, FALSE, 5);
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gtk_widget_show (align);
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/* Create the GtkProgressBar */
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pdata->pbar = gtk_progress_bar_new ();
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pdata->activity_mode = FALSE;
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gtk_container_add (GTK_CONTAINER (align), pdata->pbar);
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gtk_widget_show (pdata->pbar);
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/* Add a timer callback to update the value of the progress bar */
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pdata->timer = gdk_threads_add_timeout (100, progress_timeout, pdata);
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separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
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gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, FALSE, 0);
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gtk_widget_show (separator);
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/* rows, columns, homogeneous */
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table = gtk_table_new (2, 3, FALSE);
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gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, TRUE, 0);
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gtk_widget_show (table);
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/* Add a check button to select displaying of the trough text */
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check = gtk_check_button_new_with_label ("Show text");
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gtk_table_attach (GTK_TABLE (table), check, 0, 1, 0, 1,
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GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL,
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5, 5);
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g_signal_connect (G_OBJECT (check), "clicked",
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G_CALLBACK (toggle_show_text),
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(gpointer) pdata);
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gtk_widget_show (check);
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/* Add a check button to toggle activity mode */
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check = gtk_check_button_new_with_label ("Activity mode");
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gtk_table_attach (GTK_TABLE (table), check, 0, 1, 1, 2,
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GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL,
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5, 5);
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g_signal_connect (G_OBJECT (check), "clicked",
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G_CALLBACK (toggle_activity_mode),
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(gpointer) pdata);
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gtk_widget_show (check);
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/* Add a check button to toggle orientation */
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check = gtk_check_button_new_with_label ("Right to Left");
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gtk_table_attach (GTK_TABLE (table), check, 0, 1, 2, 3,
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GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL,
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5, 5);
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g_signal_connect (G_OBJECT (check), "clicked",
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G_CALLBACK (toggle_orientation),
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(gpointer) pdata);
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gtk_widget_show (check);
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/* Add a button to exit the program */
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button = gtk_button_new_with_label ("close");
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g_signal_connect_swapped (G_OBJECT (button), "clicked",
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G_CALLBACK (gtk_widget_destroy),
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G_OBJECT (pdata->window));
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
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/* This makes it so the button is the default. */
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gtk_widget_set_can_default (button, TRUE);
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/* This grabs this button to be the default button. Simply hitting
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* the "Enter" key will cause this button to activate. */
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gtk_widget_grab_default (button);
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gtk_widget_show (button);
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gtk_widget_show (pdata->window);
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gtk_main ();
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return 0;
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}
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