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gimp/app/tips_dialog.c

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#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include "gtk/gtk.h"
#include "tips_dialog.h"
#include "gimprc.h"
#include "interface.h"
#include "wilber.h"
#define TIPS_FILE_NAME "gimp_tips.txt"
static int tips_dialog_hide (GtkWidget *widget, gpointer data);
static int tips_show_next (GtkWidget *widget, gpointer data);
static void tips_toggle_update (GtkWidget *widget, gpointer data);
static void read_tips_file(char *filename);
static GtkWidget *tips_dialog = NULL;
static GtkWidget *tips_label;
static char ** tips_text = NULL;
static int tips_count = 0;
static int old_show_tips;
void
tips_dialog_create ()
{
GtkWidget *vbox;
GtkWidget *hbox1;
GtkWidget *hbox2;
GtkWidget *preview;
GtkWidget *button_close;
GtkWidget *button_next;
GtkWidget *button_prev;
GtkWidget *button_check;
guchar * temp;
guchar * src;
guchar * dest;
int x;
int y;
if (tips_count == 0)
{
temp = g_malloc (512);
sprintf (temp, "%s/%s", DATADIR, TIPS_FILE_NAME);
read_tips_file (temp);
g_free (temp);
}
if (last_tip >= tips_count || last_tip < 0)
last_tip = 0;
if (!tips_dialog)
{
tips_dialog = gtk_window_new (GTK_WINDOW_DIALOG);
gtk_window_set_title (GTK_WINDOW (tips_dialog), "GIMP Tip of the day");
gtk_window_position (GTK_WINDOW (tips_dialog), GTK_WIN_POS_CENTER);
gtk_signal_connect (GTK_OBJECT (tips_dialog), "delete_event",
GTK_SIGNAL_FUNC (tips_dialog_hide), NULL);
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (tips_dialog), vbox);
gtk_widget_show (vbox);
hbox1 = gtk_hbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (hbox1), 10);
gtk_box_pack_start (GTK_BOX (vbox), hbox1, FALSE, TRUE, 0);
gtk_widget_show (hbox1);
hbox2 = gtk_hbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (hbox2), 10);
gtk_box_pack_end (GTK_BOX (vbox), hbox2, FALSE, TRUE, 0);
gtk_widget_show (hbox2);
preview = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (preview), wilber_width, wilber_height);
temp = g_malloc (wilber_width * 3);
src = wilber_data;
for (y = 0; y < wilber_height; y++)
{
dest = temp;
for (x = 0; x < wilber_width; x++)
{
HEADER_PIXEL(src, dest);
dest += 3;
}
gtk_preview_draw_row (GTK_PREVIEW (preview), temp,
0, y, wilber_width);
}
g_free(temp);
gtk_box_pack_start (GTK_BOX (hbox1), preview, FALSE, TRUE, 3);
gtk_widget_show (preview);
tips_label = gtk_label_new (tips_text[last_tip]);
gtk_label_set_justify (GTK_LABEL (tips_label), GTK_JUSTIFY_LEFT);
gtk_box_pack_end (GTK_BOX (hbox1), tips_label, TRUE, TRUE, 3);
gtk_widget_show (tips_label);
button_close = gtk_button_new_with_label ("Close");
gtk_signal_connect (GTK_OBJECT (button_close), "clicked",
GTK_SIGNAL_FUNC (tips_dialog_hide), NULL);
gtk_box_pack_end (GTK_BOX (hbox2), button_close, FALSE, TRUE, 0);
gtk_widget_show (button_close);
button_next = gtk_button_new_with_label ("Next Tip");
gtk_signal_connect (GTK_OBJECT (button_next), "clicked",
GTK_SIGNAL_FUNC (tips_show_next),
(gpointer) "next");
gtk_box_pack_end (GTK_BOX (hbox2), button_next, FALSE, TRUE, 0);
gtk_widget_show (button_next);
button_prev = gtk_button_new_with_label ("Prev. Tip");
gtk_signal_connect (GTK_OBJECT (button_prev), "clicked",
GTK_SIGNAL_FUNC (tips_show_next),
(gpointer) "prev");
gtk_box_pack_end (GTK_BOX (hbox2), button_prev, FALSE, TRUE, 0);
gtk_widget_show (button_prev);
button_check = gtk_check_button_new_with_label ("Show tip next time");
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (button_check),
show_tips);
gtk_signal_connect (GTK_OBJECT (button_check), "toggled",
GTK_SIGNAL_FUNC (tips_toggle_update),
(gpointer) &show_tips);
gtk_box_pack_start (GTK_BOX (hbox2), button_check, FALSE, TRUE, 0);
gtk_widget_show (button_check);
old_show_tips = show_tips;
}
if (!GTK_WIDGET_VISIBLE (tips_dialog))
{
gtk_widget_show (tips_dialog);
}
else
{
gdk_window_raise (tips_dialog->window);
}
}
static int
tips_dialog_hide (GtkWidget *widget,
gpointer data)
{
GList *update = NULL; /* options that should be updated in .gimprc */
GList *remove = NULL; /* options that should be commented out */
gtk_widget_hide (tips_dialog);
update = g_list_append (update, "last-tip-shown"); /* always save this */
if (show_tips != old_show_tips)
{
update = g_list_append (update, "show-tips");
remove = g_list_append (remove, "dont-show-tips");
old_show_tips = show_tips;
}
last_tip++;
save_gimprc (&update, &remove);
last_tip--;
g_list_free (update);
g_list_free (remove);
return FALSE;
}
static int
tips_show_next (GtkWidget *widget,
gpointer data)
{
if (!strcmp ((char *)data, "prev"))
{
last_tip--;
if (last_tip < 0)
last_tip = tips_count - 1;
}
else
{
last_tip++;
if (last_tip >= tips_count)
last_tip = 0;
}
gtk_label_set (GTK_LABEL (tips_label), tips_text[last_tip]);
return FALSE;
}
static void
tips_toggle_update (GtkWidget *widget,
gpointer data)
{
int *toggle_val;
toggle_val = (int *) data;
if (GTK_TOGGLE_BUTTON (widget)->active)
*toggle_val = TRUE;
else
*toggle_val = FALSE;
}
static void
store_tip (char *str)
{
tips_count++;
tips_text = g_realloc(tips_text, sizeof(char *) * tips_count);
tips_text[tips_count - 1] = str;
}
static void
read_tips_file (char *filename)
{
FILE *fp;
char *tip = NULL;
char *str = NULL;
fp = fopen (filename, "rt");
if (!fp)
{
store_tip ("Your GIMP tips file appears to be missing!\n"
"There should be a file called " TIPS_FILE_NAME " in the\n"
"GIMP data directory. Please check your installation.");
return;
}
str = g_new (char, 1024);
while (!feof (fp))
{
if (!fgets (str, 1024, fp))
continue;
if (str[0] == '#' || str[0] == '\n')
{
if (tip != NULL)
{
tip[strlen (tip) - 2] = '\000';
store_tip (tip);
tip = NULL;
}
}
else
{
if (tip == NULL)
{
tip = g_malloc (strlen (str) + 1);
strcpy (tip, str);
}
else
{
tip = g_realloc (tip, strlen (tip) + strlen (str) + 1);
strcat (tip, str);
}
}
}
if (tip != NULL)
store_tip (tip);
g_free (str);
fclose (fp);
}
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