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- /* The GIMP -- an image manipulation program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
- #include "config.h"
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <time.h>
-
- #include <gtk/gtk.h>
- #include <gdk/gdkkeysyms.h>
-
- #include "apptypes.h"
-
- #include "about_dialog.h"
- #include "appenv.h"
- #include "authors.h"
- #include "gimpdnd.h"
- #include "gimphelp.h"
-
- #include "libgimp/gimpfeatures.h"
-
- #include "libgimp/gimpenv.h"
- #include "libgimp/gimpintl.h"
- #include "libgimp/gimpmath.h"
-
- #include "pixmaps/wilber2.xpm"
-
-
- #define ANIMATION_STEPS 16
- #define ANIMATION_SIZE 2
-
- static gboolean about_dialog_load_logo (GtkWidget *window);
- static void about_dialog_destroy (GtkObject *object,
- gpointer data);
- static void about_dialog_unmap (GtkWidget *widget,
- GdkEvent *event,
- gpointer data);
- static gint about_dialog_logo_expose (GtkWidget *widget,
- GdkEventExpose *event,
- gpointer data);
- static gint about_dialog_button (GtkWidget *widget,
- GdkEventButton *event,
- gpointer data);
- static gint about_dialog_key (GtkWidget *widget,
- GdkEventKey *event,
- gpointer data);
- static void about_dialog_tool_drop (GtkWidget *widget,
- ToolType tool,
- gpointer data);
- static gint about_dialog_timer (gpointer data);
-
-
- static GtkWidget *about_dialog = NULL;
- static GtkWidget *logo_area = NULL;
- static GtkWidget *scroll_area = NULL;
- static GdkPixmap *logo_pixmap = NULL;
- static GdkPixmap *scroll_pixmap = NULL;
- static guchar *dissolve_map = NULL;
- static gint dissolve_width;
- static gint dissolve_height;
- static gint logo_width = 0;
- static gint logo_height = 0;
- static gboolean do_animation = FALSE;
- static gboolean do_scrolling = FALSE;
- static gint scroll_state = 0;
- static gint frame = 0;
- static gint offset = 0;
- static gint timer = 0;
- static gint hadja_state = 0;
- static gchar **scroll_text = authors;
- static gint nscroll_texts = sizeof (authors) / sizeof (authors[0]);
- static gint scroll_text_widths[sizeof (authors) / sizeof (authors[0])];
- static gint cur_scroll_text = 0;
- static gint cur_scroll_index = 0;
- static gint shuffle_array[sizeof (authors) / sizeof (authors[0])];
-
- /* dnd stuff */
- static GtkTargetEntry tool_target_table[] =
- {
- GIMP_TARGET_TOOL
- };
- static guint n_tool_targets = (sizeof (tool_target_table) /
- sizeof (tool_target_table[0]));
-
- static gchar *drop_text[] =
- {
- "We are The GIMP." ,
- "Prepare to be manipulated.",
- "Resistance is futile."
- };
-
- static gchar *hadja_text[] =
- {
- "Hadjaha!",
- "Nej!",
- #ifndef GDK_USE_UTF8_MBS
- "TvΣrtom!"
- #else
- "Tvärtom!"
- #endif
- };
-
- void
- about_dialog_create (void)
- {
- GtkWidget *vbox;
- GtkWidget *aboutframe;
- GtkWidget *label;
- GtkWidget *alignment;
- GtkStyle *style;
- GdkFont *font;
- gint max_width;
- gint i;
- gchar *label_text;
-
- if (!about_dialog)
- {
- about_dialog = gtk_window_new (GTK_WINDOW_DIALOG);
- gtk_window_set_wmclass (GTK_WINDOW (about_dialog), "about_dialog", "Gimp");
- gtk_window_set_title (GTK_WINDOW (about_dialog), _("About the GIMP"));
- gtk_window_set_policy (GTK_WINDOW (about_dialog), FALSE, FALSE, FALSE);
- gtk_window_set_position (GTK_WINDOW (about_dialog), GTK_WIN_POS_CENTER);
-
- gimp_help_connect_help_accel (about_dialog, gimp_standard_help_func,
- "dialogs/about.html");
-
- gtk_signal_connect (GTK_OBJECT (about_dialog), "destroy",
- GTK_SIGNAL_FUNC (about_dialog_destroy),
- NULL);
- gtk_signal_connect (GTK_OBJECT (about_dialog), "unmap_event",
- GTK_SIGNAL_FUNC (about_dialog_unmap),
- NULL);
- gtk_signal_connect (GTK_OBJECT (about_dialog), "button_press_event",
- GTK_SIGNAL_FUNC (about_dialog_button),
- NULL);
- gtk_signal_connect (GTK_OBJECT (about_dialog), "key_press_event",
- GTK_SIGNAL_FUNC (about_dialog_key),
- NULL);
-
- /* dnd stuff */
- gtk_drag_dest_set (about_dialog,
- GTK_DEST_DEFAULT_MOTION |
- GTK_DEST_DEFAULT_DROP,
- tool_target_table, n_tool_targets,
- GDK_ACTION_COPY);
- gimp_dnd_tool_dest_set (about_dialog, about_dialog_tool_drop, NULL);
-
- gtk_widget_set_events (about_dialog, GDK_BUTTON_PRESS_MASK);
-
- if (!about_dialog_load_logo (about_dialog))
- {
- gtk_widget_destroy (about_dialog);
- about_dialog = NULL;
- return;
- }
-
- vbox = gtk_vbox_new (FALSE, 1);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 1);
- gtk_container_add (GTK_CONTAINER (about_dialog), vbox);
- gtk_widget_show (vbox);
-
- aboutframe = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (aboutframe), GTK_SHADOW_IN);
- gtk_container_set_border_width (GTK_CONTAINER (aboutframe), 0);
- gtk_box_pack_start (GTK_BOX (vbox), aboutframe, TRUE, TRUE, 0);
- gtk_widget_show (aboutframe);
-
- logo_area = gtk_drawing_area_new ();
- gtk_signal_connect (GTK_OBJECT (logo_area), "expose_event",
- GTK_SIGNAL_FUNC (about_dialog_logo_expose),
- NULL);
- gtk_drawing_area_size (GTK_DRAWING_AREA (logo_area),
- logo_width, logo_height);
- gtk_widget_set_events (logo_area, GDK_EXPOSURE_MASK);
- gtk_container_add (GTK_CONTAINER (aboutframe), logo_area);
- gtk_widget_show (logo_area);
-
- gtk_widget_realize (logo_area);
- gdk_window_set_background (logo_area->window, &logo_area->style->black);
-
- /* this is a font, provide only one single font definition */
- font = gdk_font_load (_("-*-helvetica-medium-r-normal--*-140-*-*-*-*-*-*"));
- if (font)
- {
- style = gtk_style_new ();
- gdk_font_unref (style->font);
- style->font = font;
- gdk_font_ref (style->font);
- gtk_widget_push_style (style);
- gtk_style_unref (style);
- }
- label_text = g_strdup_printf (_("Version %s brought to you by"),
- GIMP_VERSION);
- label = gtk_label_new (label_text);
- g_free (label_text);
- label_text = NULL;
- gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, TRUE, 0);
- gtk_widget_show (label);
-
- label = gtk_label_new ("Spencer Kimball & Peter Mattis");
- gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, TRUE, 0);
- gtk_widget_show (label);
-
- gtk_widget_pop_style ();
-
- alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
- gtk_box_pack_start (GTK_BOX (vbox), alignment, FALSE, TRUE, 0);
- gtk_widget_show (alignment);
-
- aboutframe = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (aboutframe), GTK_SHADOW_IN);
- gtk_container_set_border_width (GTK_CONTAINER (aboutframe), 0);
- gtk_container_add (GTK_CONTAINER (alignment), aboutframe);
- gtk_widget_show (aboutframe);
-
- max_width = 0;
- for (i = 0; i < nscroll_texts; i++)
- {
- scroll_text_widths[i] = gdk_string_width (aboutframe->style->font,
- scroll_text[i]);
- max_width = MAX (max_width, scroll_text_widths[i]);
- }
- for (i = 0; i < (sizeof (drop_text) / sizeof (drop_text[0])); i++)
- {
- max_width = MAX (max_width,
- gdk_string_width (aboutframe->style->font, drop_text[i]));
- }
- for (i = 0; i < (sizeof (hadja_text) / sizeof (hadja_text[0])); i++)
- {
- max_width = MAX (max_width,
- gdk_string_width (aboutframe->style->font, hadja_text[i]));
- }
- scroll_area = gtk_drawing_area_new ();
- gtk_drawing_area_size (GTK_DRAWING_AREA (scroll_area),
- max_width + 10,
- aboutframe->style->font->ascent +
- aboutframe->style->font->descent);
- gtk_widget_set_events (scroll_area, GDK_BUTTON_PRESS_MASK);
- gtk_container_add (GTK_CONTAINER (aboutframe), scroll_area);
- gtk_widget_show (scroll_area);
-
- label = gtk_label_new (_("Please visit http://www.gimp.org/ for more info"));
- gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, TRUE, 0);
- gtk_widget_show (label);
-
- gtk_widget_realize (scroll_area);
- gdk_window_set_background (scroll_area->window,
- &scroll_area->style->white);
- }
-
- if (!GTK_WIDGET_VISIBLE (about_dialog))
- {
- gtk_widget_show (about_dialog);
-
- do_animation = TRUE;
- do_scrolling = FALSE;
- scroll_state = 0;
- frame = 0;
- offset = 0;
- cur_scroll_text = 0;
-
- if (!double_speed && hadja_state != 7)
- {
- for (i = 0; i < nscroll_texts; i++)
- {
- shuffle_array[i] = i;
- }
-
- for (i = 0; i < nscroll_texts; i++)
- {
- gint j;
-
- j = rand() % nscroll_texts;
- if (i != j)
- {
- gint t;
-
- t = shuffle_array[j];
- shuffle_array[j] = shuffle_array[i];
- shuffle_array[i] = t;
- }
- }
- cur_scroll_text = rand() % nscroll_texts;
- }
- }
- else
- {
- gdk_window_raise (about_dialog->window);
- }
- }
-
- static gboolean
- about_dialog_load_logo (GtkWidget *window)
- {
- GtkWidget *preview;
- GdkGC *gc;
- gchar buf[1024];
- gchar *filename;
- guchar *pixelrow;
- FILE *fp;
- gint count;
- gint i, j, k;
-
- if (logo_pixmap)
- return TRUE;
-
- filename = g_strconcat (gimp_data_directory (),
- G_DIR_SEPARATOR_S,
- "gimp_logo.ppm",
- NULL);
- fp = fopen (filename, "rb");
- g_free (filename);
-
- if (!fp)
- return FALSE;
-
- fgets (buf, 1024, fp);
-
- if (strncmp (buf, "P6", 2) != 0)
- {
- fclose (fp);
- return FALSE;
- }
-
- fgets (buf, 1024, fp);
- fgets (buf, 1024, fp);
- sscanf (buf, "%d %d", &logo_width, &logo_height);
-
- fgets (buf, 1024, fp);
- if (strncmp (buf, "255", 3) != 0)
- {
- fclose (fp);
- return FALSE;
- }
-
- preview = gtk_preview_new (GTK_PREVIEW_COLOR);
- gtk_preview_size (GTK_PREVIEW (preview), logo_width, logo_height);
- pixelrow = g_new (guchar, logo_width * 3);
-
- for (i = 0; i < logo_height; i++)
- {
- count = fread (pixelrow, sizeof (guchar), logo_width * 3, fp);
- if (count != (logo_width * 3))
- {
- gtk_widget_destroy (preview);
- g_free (pixelrow);
- fclose (fp);
- return FALSE;
- }
-
- gtk_preview_draw_row (GTK_PREVIEW (preview), pixelrow, 0, i, logo_width);
- }
-
- gtk_widget_realize (window);
- logo_pixmap = gdk_pixmap_new (window->window, logo_width, logo_height,
- gtk_preview_get_visual ()->depth);
- gc = gdk_gc_new (logo_pixmap);
- gtk_preview_put (GTK_PREVIEW (preview),
- logo_pixmap, gc,
- 0, 0, 0, 0, logo_width, logo_height);
- gdk_gc_destroy (gc);
-
- gtk_widget_unref (preview);
- g_free (pixelrow);
-
- fclose (fp);
-
- dissolve_width =
- (logo_width / ANIMATION_SIZE) + (logo_width % ANIMATION_SIZE == 0 ? 0 : 1);
- dissolve_height =
- (logo_height / ANIMATION_SIZE) + (logo_height % ANIMATION_SIZE == 0 ? 0 : 1);
-
- dissolve_map = g_new (guchar, dissolve_width * dissolve_height);
-
- srand (time (NULL));
-
- for (i = 0, k = 0; i < dissolve_height; i++)
- for (j = 0; j < dissolve_width; j++, k++)
- dissolve_map[k] = rand () % ANIMATION_STEPS;
-
- return TRUE;
- }
-
- static void
- about_dialog_destroy (GtkObject *object,
- gpointer data)
- {
- about_dialog = NULL;
- about_dialog_unmap (NULL, NULL, NULL);
- }
-
- static void
- about_dialog_unmap (GtkWidget *widget,
- GdkEvent *event,
- gpointer data)
- {
- if (timer)
- {
- gtk_timeout_remove (timer);
- timer = 0;
- }
- }
-
- static gint
- about_dialog_logo_expose (GtkWidget *widget,
- GdkEventExpose *event,
- gpointer data)
- {
- if (do_animation)
- {
- if (!timer)
- {
- about_dialog_timer (widget);
- timer = gtk_timeout_add (75, about_dialog_timer, NULL);
- }
- }
- else
- {
- /* If we draw beyond the boundaries of the pixmap, then X
- will generate an expose area for those areas, starting
- an infinite cycle. We now set allow_grow = FALSE, so
- the drawing area can never be bigger than the preview.
- Otherwise, it would be necessary to intersect event->area
- with the pixmap boundary rectangle. */
-
- gdk_draw_pixmap (widget->window,
- widget->style->black_gc,
- logo_pixmap,
- event->area.x, event->area.y,
- event->area.x, event->area.y,
- event->area.width, event->area.height);
- }
-
- return FALSE;
- }
-
- static gint
- about_dialog_button (GtkWidget *widget,
- GdkEventButton *event,
- gpointer data)
- {
- if (timer)
- gtk_timeout_remove (timer);
- timer = 0;
- frame = 0;
-
- gtk_widget_hide (about_dialog);
-
- return FALSE;
- }
-
- static gint
- about_dialog_key (GtkWidget *widget,
- GdkEventKey *event,
- gpointer data)
- {
- gint i;
-
- if (hadja_state == 7)
- return FALSE;
-
- switch (event->keyval)
- {
- case GDK_h:
- case GDK_H:
- if (hadja_state == 0 || hadja_state == 5)
- hadja_state++;
- else
- hadja_state = 1;
- break;
- case GDK_a:
- case GDK_A:
- if (hadja_state == 1 || hadja_state == 4 || hadja_state == 6)
- hadja_state++;
- else
- hadja_state = 0;
- break;
- case GDK_d:
- case GDK_D:
- if (hadja_state == 2)
- hadja_state++;
- else
- hadja_state = 0;
- break;
- case GDK_j:
- case GDK_J:
- if (hadja_state == 3)
- hadja_state++;
- else
- hadja_state = 0;
- break;
- default:
- hadja_state = 0;
- }
-
- if (hadja_state == 7)
- {
- scroll_text = hadja_text;
- nscroll_texts = sizeof (hadja_text) / sizeof (hadja_text[0]);
-
- for (i = 0; i < nscroll_texts; i++)
- {
- shuffle_array[i] = i;
- scroll_text_widths[i] = gdk_string_width (scroll_area->style->font,
- scroll_text[i]);
- }
-
- scroll_state = 0;
- cur_scroll_index = 0;
- cur_scroll_text = 0;
- offset = 0;
- }
-
- return FALSE;
- }
-
- static void
- about_dialog_tool_drop (GtkWidget *widget,
- ToolType tool,
- gpointer data)
- {
- GdkPixmap *pixmap = NULL;
- GdkBitmap *mask = NULL;
- gint width = 0;
- gint height = 0;
- gint i;
-
- if (do_animation)
- return;
-
- if (timer)
- gtk_timeout_remove (timer);
-
- timer = gtk_timeout_add (75, about_dialog_timer, NULL);
-
- frame = 0;
- do_animation = TRUE;
- do_scrolling = FALSE;
-
- gdk_draw_rectangle (logo_pixmap,
- logo_area->style->white_gc,
- TRUE,
- 0, 0,
- logo_area->allocation.width,
- logo_area->allocation.height);
-
- pixmap =
- gdk_pixmap_create_from_xpm_d (widget->window,
- &mask,
- NULL,
- wilber2_xpm);
-
- gdk_window_get_size (pixmap, &width, &height);
-
- if (logo_area->allocation.width >= width &&
- logo_area->allocation.height >= height)
- {
- gint x, y;
-
- x = (logo_area->allocation.width - width) / 2;
- y = (logo_area->allocation.height - height) / 2;
-
- gdk_gc_set_clip_mask (logo_area->style->black_gc, mask);
- gdk_gc_set_clip_origin (logo_area->style->black_gc, x, y);
-
- gdk_draw_pixmap (logo_pixmap,
- logo_area->style->black_gc,
- pixmap, 0, 0,
- x, y,
- width, height);
-
- gdk_gc_set_clip_mask (logo_area->style->black_gc, NULL);
- gdk_gc_set_clip_origin (logo_area->style->black_gc, 0, 0);
- }
-
- gdk_pixmap_unref (pixmap);
- gdk_bitmap_unref (mask);
-
- scroll_text = drop_text;
- nscroll_texts = sizeof (drop_text) / sizeof (drop_text[0]);
-
- for (i = 0; i < nscroll_texts; i++)
- {
- shuffle_array[i] = i;
- scroll_text_widths[i] = gdk_string_width (scroll_area->style->font,
- scroll_text[i]);
- }
-
- scroll_state = 0;
- cur_scroll_index = 0;
- cur_scroll_text = 0;
- offset = 0;
-
- double_speed = TRUE;
- }
-
- static gint
- about_dialog_timer (gpointer data)
- {
- gint i, j, k;
- gint return_val;
-
- return_val = TRUE;
-
- if (do_animation)
- {
- if (logo_area->allocation.width != 1)
- {
- for (i = 0, k = 0; i < dissolve_height; i++)
- for (j = 0; j < dissolve_width; j++, k++)
- if (frame == dissolve_map[k])
- {
- gdk_draw_pixmap (logo_area->window,
- logo_area->style->black_gc,
- logo_pixmap,
- j * ANIMATION_SIZE, i * ANIMATION_SIZE,
- j * ANIMATION_SIZE, i * ANIMATION_SIZE,
- ANIMATION_SIZE, ANIMATION_SIZE);
- }
-
- frame += 1;
-
- if (frame == ANIMATION_STEPS)
- {
- do_animation = FALSE;
- do_scrolling = TRUE;
- frame = 0;
-
- timer = gtk_timeout_add (75, about_dialog_timer, NULL);
-
- return FALSE;
- }
- }
- }
-
- if (do_scrolling)
- {
- if (!scroll_pixmap)
- scroll_pixmap = gdk_pixmap_new (scroll_area->window,
- scroll_area->allocation.width,
- scroll_area->allocation.height,
- -1);
-
- switch (scroll_state)
- {
- case 1:
- scroll_state = 2;
- timer = gtk_timeout_add (700, about_dialog_timer, NULL);
- return_val = FALSE;
- break;
- case 2:
- scroll_state = 3;
- timer = gtk_timeout_add (75, about_dialog_timer, NULL);
- return_val = FALSE;
- break;
- }
-
- if (offset > (scroll_text_widths[cur_scroll_text] +
- scroll_area->allocation.width))
- {
- scroll_state = 0;
- cur_scroll_index += 1;
- if (cur_scroll_index == nscroll_texts)
- cur_scroll_index = 0;
-
- cur_scroll_text = shuffle_array[cur_scroll_index];
-
- offset = 0;
- }
-
- gdk_draw_rectangle (scroll_pixmap,
- scroll_area->style->white_gc,
- TRUE, 0, 0,
- scroll_area->allocation.width,
- scroll_area->allocation.height);
- gdk_draw_string (scroll_pixmap,
- scroll_area->style->font,
- scroll_area->style->black_gc,
- scroll_area->allocation.width - offset,
- scroll_area->style->font->ascent,
- scroll_text[cur_scroll_text]);
- gdk_draw_pixmap (scroll_area->window,
- scroll_area->style->black_gc,
- scroll_pixmap, 0, 0, 0, 0,
- scroll_area->allocation.width,
- scroll_area->allocation.height);
-
- offset += 15;
- if (scroll_state == 0)
- {
- if (offset > ((scroll_area->allocation.width +
- scroll_text_widths[cur_scroll_text]) / 2))
- {
- scroll_state = 1;
- offset = (scroll_area->allocation.width +
- scroll_text_widths[cur_scroll_text]) / 2;
- }
- }
- }
-
- return return_val;
- }
-