82f6ccd79c
2008-08-11 Sven Neumann <sven@gimp.org> * examples/*: updated the (quite outdated) examples to use canonical signal names as well. Removed some unneeded casts and trailing whitespace while I was on it... svn path=/trunk/; revision=21071
292 lines
9.9 KiB
C
292 lines
9.9 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include "gtk/gtk.h"
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static gboolean delete_event( GtkWidget *widget,
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GdkEvent *event,
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gpointer data )
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{
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gtk_main_quit ();
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return FALSE;
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}
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/* Make a new hbox filled with button-labels. Arguments for the
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* variables we're interested are passed in to this function.
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* We do not show the box, but do show everything inside. */
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static GtkWidget *make_box( gboolean homogeneous,
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gint spacing,
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gboolean expand,
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gboolean fill,
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guint padding )
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{
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GtkWidget *box;
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GtkWidget *button;
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char padstr[80];
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/* Create a new hbox with the appropriate homogeneous
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* and spacing settings */
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box = gtk_hbox_new (homogeneous, spacing);
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/* Create a series of buttons with the appropriate settings */
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button = gtk_button_new_with_label ("gtk_box_pack");
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gtk_box_pack_start (GTK_BOX (box), button, expand, fill, padding);
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gtk_widget_show (button);
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button = gtk_button_new_with_label ("(box,");
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gtk_box_pack_start (GTK_BOX (box), button, expand, fill, padding);
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gtk_widget_show (button);
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button = gtk_button_new_with_label ("button,");
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gtk_box_pack_start (GTK_BOX (box), button, expand, fill, padding);
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gtk_widget_show (button);
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/* Create a button with the label depending on the value of
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* expand. */
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if (expand == TRUE)
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button = gtk_button_new_with_label ("TRUE,");
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else
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button = gtk_button_new_with_label ("FALSE,");
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gtk_box_pack_start (GTK_BOX (box), button, expand, fill, padding);
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gtk_widget_show (button);
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/* This is the same as the button creation for "expand"
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* above, but uses the shorthand form. */
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button = gtk_button_new_with_label (fill ? "TRUE," : "FALSE,");
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gtk_box_pack_start (GTK_BOX (box), button, expand, fill, padding);
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gtk_widget_show (button);
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sprintf (padstr, "%d);", padding);
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button = gtk_button_new_with_label (padstr);
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gtk_box_pack_start (GTK_BOX (box), button, expand, fill, padding);
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gtk_widget_show (button);
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return box;
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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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GtkWidget *window;
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GtkWidget *button;
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GtkWidget *box1;
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GtkWidget *box2;
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GtkWidget *separator;
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GtkWidget *label;
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GtkWidget *quitbox;
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int which;
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/* Our init, don't forget this! :) */
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gtk_init (&argc, &argv);
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if (argc != 2) {
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fprintf (stderr, "usage: packbox num, where num is 1, 2, or 3.\n");
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/* This just does cleanup in GTK and exits with an exit status of 1. */
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exit (1);
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}
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which = atoi (argv[1]);
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/* Create our window */
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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/* You should always remember to connect the "delete-event" signal
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* to the main window. This is very important for proper intuitive
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* behavior */
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g_signal_connect (window, "delete-event",
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G_CALLBACK (delete_event), NULL);
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gtk_container_set_border_width (GTK_CONTAINER (window), 10);
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/* We create a vertical box (vbox) to pack the horizontal boxes into.
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* This allows us to stack the horizontal boxes filled with buttons one
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* on top of the other in this vbox. */
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box1 = gtk_vbox_new (FALSE, 0);
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/* which example to show. These correspond to the pictures above. */
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switch (which) {
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case 1:
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/* create a new label. */
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label = gtk_label_new ("gtk_hbox_new (FALSE, 0);");
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/* Align the label to the left side. We'll discuss this function and
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* others in the section on Widget Attributes. */
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gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
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/* Pack the label into the vertical box (vbox box1). Remember that
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* widgets added to a vbox will be packed one on top of the other in
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* order. */
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gtk_box_pack_start (GTK_BOX (box1), label, FALSE, FALSE, 0);
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/* Show the label */
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gtk_widget_show (label);
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/* Call our make box function - homogeneous = FALSE, spacing = 0,
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* expand = FALSE, fill = FALSE, padding = 0 */
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box2 = make_box (FALSE, 0, FALSE, FALSE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Call our make box function - homogeneous = FALSE, spacing = 0,
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* expand = TRUE, fill = FALSE, padding = 0 */
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box2 = make_box (FALSE, 0, TRUE, FALSE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (FALSE, 0, TRUE, TRUE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Creates a separator, we'll learn more about these later,
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* but they are quite simple. */
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separator = gtk_hseparator_new ();
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/* Pack the separator into the vbox. Remember each of these
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* widgets is being packed into a vbox, so they'll be stacked
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* vertically. */
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gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 5);
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gtk_widget_show (separator);
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/* Create another new label, and show it. */
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label = gtk_label_new ("gtk_hbox_new (TRUE, 0);");
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gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
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gtk_box_pack_start (GTK_BOX (box1), label, FALSE, FALSE, 0);
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gtk_widget_show (label);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (TRUE, 0, TRUE, FALSE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (TRUE, 0, TRUE, TRUE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Another new separator. */
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separator = gtk_hseparator_new ();
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/* The last 3 arguments to gtk_box_pack_start are:
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* expand, fill, padding. */
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gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 5);
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gtk_widget_show (separator);
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break;
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case 2:
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/* Create a new label, remember box1 is a vbox as created
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* near the beginning of main() */
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label = gtk_label_new ("gtk_hbox_new (FALSE, 10);");
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gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
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gtk_box_pack_start (GTK_BOX (box1), label, FALSE, FALSE, 0);
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gtk_widget_show (label);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (FALSE, 10, TRUE, FALSE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (FALSE, 10, TRUE, TRUE, 0);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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separator = gtk_hseparator_new ();
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/* The last 3 arguments to gtk_box_pack_start are:
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* expand, fill, padding. */
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gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 5);
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gtk_widget_show (separator);
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label = gtk_label_new ("gtk_hbox_new (FALSE, 0);");
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gtk_misc_set_alignment (GTK_MISC (label), 0, 0);
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gtk_box_pack_start (GTK_BOX (box1), label, FALSE, FALSE, 0);
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gtk_widget_show (label);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (FALSE, 0, TRUE, FALSE, 10);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* Args are: homogeneous, spacing, expand, fill, padding */
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box2 = make_box (FALSE, 0, TRUE, TRUE, 10);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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separator = gtk_hseparator_new ();
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/* The last 3 arguments to gtk_box_pack_start are: expand, fill, padding. */
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gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 5);
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gtk_widget_show (separator);
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break;
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case 3:
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/* This demonstrates the ability to use gtk_box_pack_end() to
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* right justify widgets. First, we create a new box as before. */
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box2 = make_box (FALSE, 0, FALSE, FALSE, 0);
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/* Create the label that will be put at the end. */
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label = gtk_label_new ("end");
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/* Pack it using gtk_box_pack_end(), so it is put on the right
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* side of the hbox created in the make_box() call. */
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gtk_box_pack_end (GTK_BOX (box2), label, FALSE, FALSE, 0);
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/* Show the label. */
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gtk_widget_show (label);
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/* Pack box2 into box1 (the vbox remember ? :) */
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, FALSE, 0);
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gtk_widget_show (box2);
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/* A separator for the bottom. */
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separator = gtk_hseparator_new ();
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/* This explicitly sets the separator to 400 pixels wide by 5 pixels
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* high. This is so the hbox we created will also be 400 pixels wide,
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* and the "end" label will be separated from the other labels in the
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* hbox. Otherwise, all the widgets in the hbox would be packed as
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* close together as possible. */
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gtk_widget_set_size_request (separator, 400, 5);
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/* pack the separator into the vbox (box1) created near the start
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* of main() */
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gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 5);
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gtk_widget_show (separator);
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}
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/* Create another new hbox.. remember we can use as many as we need! */
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quitbox = gtk_hbox_new (FALSE, 0);
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/* Our quit button. */
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button = gtk_button_new_with_label ("Quit");
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/* Setup the signal to terminate the program when the button is clicked */
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g_signal_connect_swapped (button, "clicked",
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G_CALLBACK (gtk_main_quit),
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window);
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/* Pack the button into the quitbox.
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* The last 3 arguments to gtk_box_pack_start are:
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* expand, fill, padding. */
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gtk_box_pack_start (GTK_BOX (quitbox), button, TRUE, FALSE, 0);
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/* pack the quitbox into the vbox (box1) */
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gtk_box_pack_start (GTK_BOX (box1), quitbox, FALSE, FALSE, 0);
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/* Pack the vbox (box1) which now contains all our widgets, into the
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* main window. */
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gtk_container_add (GTK_CONTAINER (window), box1);
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/* And show everything left */
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gtk_widget_show (button);
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gtk_widget_show (quitbox);
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gtk_widget_show (box1);
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/* Showing the window last so everything pops up at once. */
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gtk_widget_show (window);
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/* And of course, our main function. */
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gtk_main ();
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/* Control returns here when gtk_main_quit() is called, but not when
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* exit() is used. */
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return 0;
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}
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