/* 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 #include #include "appenv.h" #include "colormaps.h" #include "cursorutil.h" #include "disp_callbacks.h" #include "drawable.h" #include "draw_core.h" #include "gdisplay.h" #include "gdisplayP.h" #include "gdisplay_color.h" #include "gdisplay_ops.h" #include "gimage_mask.h" #include "gimpcontext.h" #include "gimprc.h" #include "gximage.h" #include "image_render.h" #include "info_window.h" #include "interface.h" #include "lc_dialog.h" #include "menus.h" #include "nav_window.h" #include "plug_in.h" #include "qmask.h" #include "scale.h" #include "scroll.h" #include "tools.h" #include "undo.h" #include "bezier_selectP.h" #include "layer_pvt.h" /* ick. (not alone either) */ #include "libgimp/gimpmath.h" #include "libgimp/gimpintl.h" #define OVERHEAD 25 /* in units of pixel area */ #define EPSILON 5 #define MAX_TITLE_BUF 256 /* variable declarations */ GSList * display_list = NULL; static gint display_num = 1; static GdkCursorType default_gdisplay_cursor = GDK_TOP_LEFT_ARROW; /* Local functions */ static void gdisplay_format_title (GDisplay *, char *, int); static void gdisplay_delete (GDisplay *); static GSList * gdisplay_free_area_list (GSList *); static GSList * gdisplay_process_area_list (GSList *, GimpArea *); static void gdisplay_add_update_area (GDisplay *, int, int, int, int); static void gdisplay_add_display_area (GDisplay *, int, int, int, int); static void gdisplay_paint_area (GDisplay *, int, int, int, int); static void gdisplay_draw_cursor (GDisplay *); static void gdisplay_display_area (GDisplay *, int, int, int, int); static guint gdisplay_hash (GDisplay *); static void gdisplay_cleandirty_handler (GimpImage *, void *); static GHashTable *display_ht = NULL; /* FIXME: GDisplays really need to be GtkObjects */ GDisplay* gdisplay_new (GimpImage *gimage, guint scale) { GDisplay *gdisp; gchar title [MAX_TITLE_BUF]; /* If there isn't an interface, never create a gdisplay */ if (no_interface) return NULL; /* * Set all GDisplay parameters... */ gdisp = g_new (GDisplay, 1); gdisp->offset_x = gdisp->offset_y = 0; gdisp->scale = scale; gdisp->dot_for_dot = default_dot_for_dot; gdisp->gimage = gimage; gdisp->window_info_dialog = NULL; gdisp->window_nav_dialog = NULL; gdisp->nav_popup = NULL; gdisp->depth = g_visual->depth; gdisp->select = NULL; gdisp->ID = display_num++; gdisp->instance = gimage->instance_count; gdisp->update_areas = NULL; gdisp->display_areas = NULL; gdisp->disp_xoffset = 0; gdisp->disp_yoffset = 0; gdisp->current_cursor = -1; gdisp->draw_guides = TRUE; gdisp->snap_to_guides = TRUE; gdisp->draw_cursor = FALSE; gdisp->proximity = FALSE; gdisp->have_cursor = FALSE; gdisp->using_override_cursor = FALSE; gdisp->progressid = FALSE; gdisp->idle_render.idleid = -1; /*gdisp->idle_render.handlerid = -1;*/ gdisp->idle_render.update_areas = NULL; gdisp->idle_render.active = FALSE; gdisp->cd_list = NULL; gdisp->cd_ui = NULL; gdisp->warning_dialog = NULL; /* format the title */ gdisplay_format_title (gdisp, title, MAX_TITLE_BUF); /* add the new display to the list so that it isn't lost */ display_list = g_slist_append (display_list, (void *) gdisp); /* create the shell for the image */ create_display_shell (gdisp, gimage->width, gimage->height, title, gimage_base_type (gimage)); /* update the title to correct the initially displayed scale */ gdisplay_update_title (gdisp); /* set the gdisplay colormap type and install the appropriate colormap */ gdisp->color_type = (gimage_base_type (gimage) == GRAY) ? GRAY : RGB; /* set the qmask buttons */ qmask_buttons_update(gdisp); /* set the user data */ if (!display_ht) display_ht = g_hash_table_new ((GHashFunc) gdisplay_hash, NULL); g_hash_table_insert (display_ht, gdisp->shell, gdisp); g_hash_table_insert (display_ht, gdisp->canvas, gdisp); /* set the current tool cursor */ gdisplay_install_tool_cursor (gdisp, default_gdisplay_cursor); gimage->instance_count++; /* this is obsolete */ gimage->disp_count++; lc_dialog_preview_update(gimage); /* We're interested in clean and dirty signals so we can update the * title if need be. */ gtk_signal_connect (GTK_OBJECT (gimage), "dirty", GTK_SIGNAL_FUNC (gdisplay_cleandirty_handler), gdisp); gtk_signal_connect (GTK_OBJECT (gimage), "clean", GTK_SIGNAL_FUNC (gdisplay_cleandirty_handler), gdisp); return gdisp; } static int print (char *, int, int, const char *, ...) G_GNUC_PRINTF (4, 5); static int print (char *buf, int len, int start, const char *fmt, ...) { va_list args; int printed; va_start (args, fmt); printed = g_vsnprintf (buf + start, len - start, fmt, args); if (printed < 0) printed = len - start; va_end (args); return printed; } static void gdisplay_format_title (GDisplay *gdisp, gchar *title, gint title_len) { GimpImage *gimage; char *image_type_str; int empty; int i; char *format; gimage = gdisp->gimage; empty = gimage_is_empty (gimage); switch (gimage_base_type (gimage)) { case RGB: image_type_str = (empty) ? _("RGB-empty") : _("RGB"); break; case GRAY: image_type_str = (empty) ? _("grayscale-empty") : _("grayscale"); break; case INDEXED: image_type_str = (empty) ? _("indexed-empty") : _("indexed"); break; default: image_type_str = NULL; } i = 0; format = image_title_format; while (i < title_len && *format) { switch (*format) { case '%': format++; switch (*format) { case 0: g_warning ("image-title-format string ended within %%-sequence"); break; case '%': title[i++] = '%'; break; case 'f': /* pruned filename */ i += print (title, title_len, i, "%s", g_basename (gimage_filename (gimage))); break; case 'F': /* full filename */ i += print (title, title_len, i, "%s", gimage_filename (gimage)); break; case 'p': /* PDB id */ i += print (title, title_len, i, "%d", pdb_image_to_id (gimage)); break; case 'i': /* instance */ i += print (title, title_len, i, "%d", gdisp->instance); break; case 't': /* type */ i += print (title, title_len, i, "%s", image_type_str); break; case 's': /* user source zoom factor */ i += print (title, title_len, i, "%d", SCALESRC (gdisp)); break; case 'd': /* user destination zoom factor */ i += print (title, title_len, i, "%d", SCALEDEST (gdisp)); break; case 'z': /* user zoom factor (percentage) */ i += print (title, title_len, i, "%d", 100 * SCALEDEST (gdisp) / SCALESRC (gdisp)); break; case 'D': /* dirty flag */ if (format[1] == 0) { g_warning("image-title-format string ended within %%D-sequence"); break; } if (gimage->dirty) title[i++] = format[1]; format++; break; /* Other cool things to be added: * %m = memory used by picture * some kind of resolution / image size thing * people seem to want to know the active layer name */ default: g_warning ("image-title-format contains unknown format sequence '%%%c'", *format); break; } break; default: title[i++] = *format; break; } format++; } title[MIN(i, title_len-1)] = 0; } static void gdisplay_delete (GDisplay *gdisp) { g_hash_table_remove (display_ht, gdisp->shell); g_hash_table_remove (display_ht, gdisp->canvas); /* stop any active tool */ active_tool_control (HALT, (void *) gdisp); /* clear out the pointer to this gdisp from the active tool */ if (active_tool && active_tool->gdisp_ptr == gdisp) { active_tool->drawable = NULL; active_tool->gdisp_ptr = NULL; } /* free the selection structure */ selection_free (gdisp->select); /* If this gdisplay was idlerendering at the time when it was deleted, deactivate the idlerendering thread before deletion! */ if (gdisp->idle_render.active) { gtk_idle_remove (gdisp->idle_render.idleid); gdisp->idle_render.active = FALSE; } /* detach any color displays */ gdisplay_color_detach_all (gdisp); /* get rid of signals handled by this display */ gtk_signal_disconnect_by_data (GTK_OBJECT (gdisp->gimage), gdisp); if (gdisp->scroll_gc) gdk_gc_destroy (gdisp->scroll_gc); /* free the area lists */ gdisplay_free_area_list (gdisp->update_areas); gdisplay_free_area_list (gdisp->display_areas); gdisplay_free_area_list (gdisp->idle_render.update_areas); /* remove dialogs before removing the image because they may want to * disconnect from image signals */ /* insure that if a window information dialog exists, it is removed */ info_window_free (gdisp->window_info_dialog); /* Remove navigation dialog */ nav_window_free (gdisp, gdisp->window_nav_dialog); /* free the gimage */ gdisp->gimage->disp_count--; gimage_delete (gdisp->gimage); if (gdisp->nav_popup) nav_popup_free (gdisp->nav_popup); gtk_widget_unref (gdisp->shell); g_free (gdisp); } static GSList * gdisplay_free_area_list (GSList *list) { GSList *l = list; GimpArea *ga; while (l) { /* free the data */ ga = (GimpArea *) l->data; g_free (ga); l = g_slist_next (l); } if (list) g_slist_free (list); return NULL; } /* * As far as I can tell, this function takes a GimpArea and unifies it with * an existing list of GimpAreas, trying to avoid overdraw. [adam] */ static GSList * gdisplay_process_area_list (GSList *list, GimpArea *ga1) { GSList *new_list; GSList *l = list; gint area1, area2, area3; GimpArea *ga2; /* start new list off */ new_list = g_slist_prepend (NULL, ga1); while (l) { /* process the data */ ga2 = (GimpArea *) l->data; area1 = (ga1->x2 - ga1->x1) * (ga1->y2 - ga1->y1) + OVERHEAD; area2 = (ga2->x2 - ga2->x1) * (ga2->y2 - ga2->y1) + OVERHEAD; area3 = (MAX (ga2->x2, ga1->x2) - MIN (ga2->x1, ga1->x1)) * (MAX (ga2->y2, ga1->y2) - MIN (ga2->y1, ga1->y1)) + OVERHEAD; if ((area1 + area2) < area3) new_list = g_slist_prepend (new_list, ga2); else { ga1->x1 = MIN (ga1->x1, ga2->x1); ga1->y1 = MIN (ga1->y1, ga2->y1); ga1->x2 = MAX (ga1->x2, ga2->x2); ga1->y2 = MAX (ga1->y2, ga2->y2); g_free (ga2); } l = g_slist_next (l); } if (list) g_slist_free (list); return new_list; } static int idle_render_next_area (GDisplay *gdisp) { GimpArea *ga; GSList *list; list = gdisp->idle_render.update_areas; if (list == NULL) { return (-1); } ga = (GimpArea*) list->data; gdisp->idle_render.update_areas = g_slist_remove (gdisp->idle_render.update_areas, ga); gdisp->idle_render.x = gdisp->idle_render.basex = ga->x1; gdisp->idle_render.y = gdisp->idle_render.basey = ga->y1; gdisp->idle_render.width = ga->x2 - ga->x1; gdisp->idle_render.height = ga->y2 - ga->y1; g_free (ga); return (0); } /* Unless specified otherwise, display re-rendering is organised by IdleRender, which amalgamates areas to be re-rendered and breaks them into bite-sized chunks which are chewed on in a low- priority idle thread. This greatly improves responsiveness for many GIMP operations. -- Adam */ static int idlerender_callback (gpointer data) { const gint CHUNK_WIDTH = 256; const gint CHUNK_HEIGHT = 128; gint workx, worky, workw, workh; GDisplay* gdisp = data; workw = CHUNK_WIDTH; workh = CHUNK_HEIGHT; workx = gdisp->idle_render.x; worky = gdisp->idle_render.y; if (workx+workw > gdisp->idle_render.basex+gdisp->idle_render.width) { workw = gdisp->idle_render.basex+gdisp->idle_render.width-workx; } if (worky+workh > gdisp->idle_render.basey+gdisp->idle_render.height) { workh = gdisp->idle_render.basey+gdisp->idle_render.height-worky; } gdisplay_paint_area (gdisp, workx, worky, workw, workh); gdisplay_flush_displays_only (gdisp); gdisp->idle_render.x += CHUNK_WIDTH; if (gdisp->idle_render.x >= gdisp->idle_render.basex+gdisp->idle_render.width) { gdisp->idle_render.x = gdisp->idle_render.basex; gdisp->idle_render.y += CHUNK_HEIGHT; if (gdisp->idle_render.y >= gdisp->idle_render.basey + gdisp->idle_render.height) { if (idle_render_next_area(gdisp) != 0) { /* FINISHED */ gdisp->idle_render.active = FALSE; return 0; } } } /* Still work to do. */ return 1; } static void gdisplay_idlerender_init (GDisplay *gdisp) { GSList *list; GimpArea *ga, *new_ga; /* gdisplay_install_override_cursor(gdisp, GDK_CIRCLE); */ /* We need to merge the IdleRender's and the GDisplay's update_areas list to keep track of which of the updates have been flushed and hence need to be drawn. */ list = gdisp->update_areas; while (list) { ga = (GimpArea *) list->data; new_ga = g_malloc (sizeof(GimpArea)); memcpy (new_ga, ga, sizeof(GimpArea)); gdisp->idle_render.update_areas = gdisplay_process_area_list (gdisp->idle_render.update_areas, new_ga); list = g_slist_next (list); } /* If an idlerender was already running, merge the remainder of its unrendered area with the update_areas list, and make it start work on the next unrendered area in the list. */ if (gdisp->idle_render.active) { new_ga = g_malloc (sizeof(GimpArea)); new_ga->x1 = gdisp->idle_render.basex; new_ga->y1 = gdisp->idle_render.y; new_ga->x2 = gdisp->idle_render.basex + gdisp->idle_render.width; new_ga->y2 = gdisp->idle_render.y + (gdisp->idle_render.height - (gdisp->idle_render.y - gdisp->idle_render.basey) ); gdisp->idle_render.update_areas = gdisplay_process_area_list (gdisp->idle_render.update_areas, new_ga); idle_render_next_area(gdisp); } else { if (gdisp->idle_render.update_areas == NULL) { g_warning ("Wanted to start idlerender thread with no update_areas. (+memleak)"); return; } idle_render_next_area(gdisp); gdisp->idle_render.active = TRUE; gdisp->idle_render.idleid = gtk_idle_add_priority (GTK_PRIORITY_LOW, idlerender_callback, gdisp); } /* Caller frees gdisp->update_areas */ } void gdisplay_flush_displays_only (GDisplay *gdisp) { GSList *list; GimpArea *ga; list = gdisp->display_areas; if (list) { /* stop the currently active tool */ active_tool_control (PAUSE, (void *) gdisp); while (list) { /* Paint the area specified by the GimpArea */ ga = (GimpArea *) list->data; gdisplay_display_area (gdisp, ga->x1, ga->y1, (ga->x2 - ga->x1), (ga->y2 - ga->y1)); list = g_slist_next (list); } /* Free the update lists */ gdisp->display_areas = gdisplay_free_area_list (gdisp->display_areas); /* draw the guides */ gdisplay_draw_guides (gdisp); /* and the cursor (if we have a software cursor */ if (gdisp->have_cursor) gdisplay_draw_cursor (gdisp); /* restart (and recalculate) the selection boundaries */ selection_start (gdisp->select, TRUE); /* start the currently active tool */ active_tool_control (RESUME, (void *) gdisp); } } static void gdisplay_flush_whenever (GDisplay *gdisp, gboolean now) { GSList *list; GimpArea *ga; /* Flush the items in the displays and updates lists - * but only if gdisplay has been mapped and exposed */ if (!gdisp->select) return; /* First the updates... */ if (now) { /* Synchronous */ list = gdisp->update_areas; while (list) { /* Paint the area specified by the GimpArea */ ga = (GimpArea *) list->data; if ((ga->x1 != ga->x2) && (ga->y1 != ga->y2)) { gdisplay_paint_area (gdisp, ga->x1, ga->y1, (ga->x2 - ga->x1), (ga->y2 - ga->y1)); } list = g_slist_next (list); } } else { /* Asynchronous */ if (gdisp->update_areas) gdisplay_idlerender_init (gdisp); } /* Free the update lists */ gdisp->update_areas = gdisplay_free_area_list (gdisp->update_areas); /* Next the displays... */ gdisplay_flush_displays_only (gdisp); /* update the gdisplay's info dialog */ info_window_update (gdisp); /* update the gdisplay's qmask buttons */ qmask_buttons_update (gdisp); /* ensure the consistency of the tear-off menus */ if (!now && gimp_context_get_display (gimp_context_get_user ()) == gdisp) gdisplay_set_menu_sensitivity (gdisp); } void gdisplay_flush (GDisplay *gdisp) { /* Redraw on idle time */ gdisplay_flush_whenever (gdisp, FALSE); } void gdisplay_flush_now (GDisplay *gdisp) { /* Redraw NOW */ gdisplay_flush_whenever (gdisp, TRUE); } /* Force all gdisplays to finish their idlerender projection */ void gdisplays_finish_draw (void) { GSList *list = display_list; GDisplay* gdisp; while (list) { gdisp = (GDisplay*) list->data; if (gdisp->idle_render.active) { gtk_idle_remove (gdisp->idle_render.idleid); while (idlerender_callback(gdisp)); } list = g_slist_next (list); } } void gdisplay_draw_guides (GDisplay *gdisp) { GList *tmp_list; Guide *guide; if (gdisp->draw_guides) { tmp_list = gdisp->gimage->guides; while (tmp_list) { guide = tmp_list->data; tmp_list = tmp_list->next; gdisplay_draw_guide (gdisp, guide, FALSE); } } } void gdisplay_draw_guide (GDisplay *gdisp, Guide *guide, gboolean active) { static GdkGC *normal_hgc = NULL; static GdkGC *active_hgc = NULL; static GdkGC *normal_vgc = NULL; static GdkGC *active_vgc = NULL; static int initialize = TRUE; gint x1, x2; gint y1, y2; gint w, h; gint x, y; if (guide->position < 0) return; if (initialize) { GdkGCValues values; const char stipple[] = { 0xF0, /* ####---- */ 0xE1, /* ###----# */ 0xC3, /* ##----## */ 0x87, /* #----### */ 0x0F, /* ----#### */ 0x1E, /* ---####- */ 0x3C, /* --####-- */ 0x78, /* -####--- */ }; initialize = FALSE; values.foreground.pixel = gdisplay_black_pixel (gdisp); values.background.pixel = g_normal_guide_pixel; values.fill = GDK_OPAQUE_STIPPLED; values.stipple = gdk_bitmap_create_from_data (gdisp->canvas->window, (char*) stipple, 8, 1); normal_hgc = gdk_gc_new_with_values (gdisp->canvas->window, &values, GDK_GC_FOREGROUND | GDK_GC_BACKGROUND | GDK_GC_FILL | GDK_GC_STIPPLE); values.background.pixel = g_active_guide_pixel; active_hgc = gdk_gc_new_with_values (gdisp->canvas->window, &values, GDK_GC_FOREGROUND | GDK_GC_BACKGROUND | GDK_GC_FILL | GDK_GC_STIPPLE); values.foreground.pixel = gdisplay_black_pixel (gdisp); values.background.pixel = g_normal_guide_pixel; values.fill = GDK_OPAQUE_STIPPLED; values.stipple = gdk_bitmap_create_from_data (gdisp->canvas->window, (char*) stipple, 1, 8); normal_vgc = gdk_gc_new_with_values (gdisp->canvas->window, &values, GDK_GC_FOREGROUND | GDK_GC_BACKGROUND | GDK_GC_FILL | GDK_GC_STIPPLE); values.background.pixel = g_active_guide_pixel; active_vgc = gdk_gc_new_with_values (gdisp->canvas->window, &values, GDK_GC_FOREGROUND | GDK_GC_BACKGROUND | GDK_GC_FILL | GDK_GC_STIPPLE); } gdisplay_transform_coords (gdisp, 0, 0, &x1, &y1, FALSE); gdisplay_transform_coords (gdisp, gdisp->gimage->width, gdisp->gimage->height, &x2, &y2, FALSE); gdk_window_get_size (gdisp->canvas->window, &w, &h); if (x1 < 0) x1 = 0; if (y1 < 0) y1 = 0; if (x2 > w) x2 = w; if (y2 > h) y2 = h; if (guide->orientation == ORIENTATION_HORIZONTAL) { gdisplay_transform_coords (gdisp, 0, guide->position, &x, &y, FALSE); if (active) gdk_draw_line (gdisp->canvas->window, active_hgc, x1, y, x2, y); else gdk_draw_line (gdisp->canvas->window, normal_hgc, x1, y, x2, y); } else if (guide->orientation == ORIENTATION_VERTICAL) { gdisplay_transform_coords (gdisp, guide->position, 0, &x, &y, FALSE); if (active) gdk_draw_line (gdisp->canvas->window, active_vgc, x, y1, x, y2); else gdk_draw_line (gdisp->canvas->window, normal_vgc, x, y1, x, y2); } } Guide* gdisplay_find_guide (GDisplay *gdisp, gdouble x, gdouble y) { GList *tmp_list; Guide *guide; gint offset_x, offset_y; gdouble scalex, scaley; gdouble pos; if (gdisp->draw_guides) { offset_x = gdisp->offset_x - gdisp->disp_xoffset; offset_y = gdisp->offset_y - gdisp->disp_yoffset; scalex = SCALEFACTOR_X (gdisp); scaley = SCALEFACTOR_Y (gdisp); tmp_list = gdisp->gimage->guides; while (tmp_list) { guide = tmp_list->data; tmp_list = tmp_list->next; switch (guide->orientation) { case ORIENTATION_HORIZONTAL: pos = scaley * guide->position - offset_y; if ((guide->position != -1) && (pos > (y - EPSILON)) && (pos < (y + EPSILON))) return guide; break; case ORIENTATION_VERTICAL: pos = scalex * guide->position - offset_x; if ((guide->position != -1) && (pos > (x - EPSILON)) && (pos < (x + EPSILON))) return guide; break; } } } return NULL; } gboolean gdisplay_snap_point (GDisplay *gdisp, gdouble x, gdouble y, gdouble *tx, gdouble *ty) { GList *tmp_list; Guide *guide; gdouble scalex, scaley; gdouble pos; gint offset_x, offset_y; gint minhdist, minvdist; gint dist; gboolean snapped = FALSE; *tx = x; *ty = y; if (gdisp->draw_guides && gdisp->snap_to_guides && gdisp->gimage->guides) { offset_x = gdisp->offset_x - gdisp->disp_xoffset; offset_y = gdisp->offset_y - gdisp->disp_yoffset; scalex = SCALEFACTOR_X (gdisp); scaley = SCALEFACTOR_Y (gdisp); minhdist = G_MAXINT; minvdist = G_MAXINT; tmp_list = gdisp->gimage->guides; while (tmp_list) { guide = tmp_list->data; tmp_list = tmp_list->next; switch (guide->orientation) { case ORIENTATION_HORIZONTAL: pos = scaley * guide->position - offset_y; if ((pos > (y - EPSILON)) && (pos < (y + EPSILON))) { dist = (int) pos - y; dist = ABS (dist); if (dist < minhdist) { minhdist = dist; *ty = pos; snapped = TRUE; } } break; case ORIENTATION_VERTICAL: pos = scalex * guide->position - offset_x; if ((pos > (x - EPSILON)) && (pos < (x + EPSILON))) { dist = (int) pos - x; dist = ABS (dist); if (dist < minvdist) { minvdist = dist; *tx = pos; snapped = TRUE; } } break; } } } return snapped; } void gdisplay_snap_rectangle (GDisplay *gdisp, gdouble x1, gdouble y1, gdouble x2, gdouble y2, gdouble *tx1, gdouble *ty1) { gdouble nx1, ny1; gdouble nx2, ny2; gboolean snap1, snap2; *tx1 = x1; *ty1 = y1; snap1 = gdisplay_snap_point (gdisp, x1, y1, &nx1, &ny1); snap2 = gdisplay_snap_point (gdisp, x2, y2, &nx2, &ny2); if (snap1 || snap2) { if (x1 != nx1) *tx1 = nx1; else if (x2 != nx2) *tx1 = x1 + (nx2 - x2); if (y1 != ny1) *ty1 = ny1; else if (y2 != ny2) *ty1 = y1 + (ny2 - y2); } } void gdisplay_draw_cursor (GDisplay *gdisp) { gint x = gdisp->cursor_x; gint y = gdisp->cursor_y; gdk_draw_line (gdisp->canvas->window, gdisp->canvas->style->white_gc, x - 7, y-1, x + 7, y-1); gdk_draw_line (gdisp->canvas->window, gdisp->canvas->style->black_gc, x - 7, y, x + 7, y); gdk_draw_line (gdisp->canvas->window, gdisp->canvas->style->white_gc, x - 7, y+1, x + 7, y+1); gdk_draw_line (gdisp->canvas->window, gdisp->canvas->style->white_gc, x-1, y - 7, x-1, y + 7); gdk_draw_line (gdisp->canvas->window, gdisp->canvas->style->black_gc, x, y - 7, x, y + 7); gdk_draw_line (gdisp->canvas->window, gdisp->canvas->style->white_gc, x+1, y - 7, x+1, y + 7); } void gdisplay_update_cursor (GDisplay *gdisp, gint x, gint y) { gint new_cursor; gchar buffer[CURSOR_STR_LENGTH]; gint t_x; gint t_y; new_cursor = gdisp->draw_cursor && gdisp->proximity; /* Erase old cursor, if necessary */ if (gdisp->have_cursor && (!new_cursor || x != gdisp->cursor_x || y != gdisp->cursor_y)) { gdisplay_expose_area (gdisp, gdisp->cursor_x - 7, gdisp->cursor_y - 7, 15, 15); if (!new_cursor) { gdisp->have_cursor = FALSE; gdisplay_flush (gdisp); } } gdisplay_untransform_coords (gdisp, x, y, &t_x, &t_y, FALSE, FALSE); if (t_x < 0 || t_y < 0 || t_x >= gdisp->gimage->width || t_y >= gdisp->gimage->height) { gtk_label_set (GTK_LABEL (gdisp->cursor_label), ""); info_window_update_RGB (gdisp, -1, -1); } else { if (gdisp->dot_for_dot) { g_snprintf (buffer, CURSOR_STR_LENGTH, gdisp->cursor_format_str, "", t_x, ", ", t_y); } else /* show real world units */ { gdouble unit_factor = gimp_unit_get_factor (gdisp->gimage->unit); g_snprintf (buffer, CURSOR_STR_LENGTH, gdisp->cursor_format_str, "", (gdouble) t_x * unit_factor / gdisp->gimage->xresolution, ", ", (gdouble) t_y * unit_factor / gdisp->gimage->yresolution); } gtk_label_set (GTK_LABEL (gdisp->cursor_label), buffer); info_window_update_RGB (gdisp, t_x, t_y); } gdisp->have_cursor = new_cursor; gdisp->cursor_x = x; gdisp->cursor_y = y; if (new_cursor) gdisplay_flush (gdisp); } void gdisplay_set_dot_for_dot (GDisplay *gdisp, gboolean value) { if (value != gdisp->dot_for_dot) { gdisp->dot_for_dot = value; gdisplay_resize_cursor_label (gdisp); resize_display (gdisp, allow_resize_windows, TRUE); } } void gdisplay_resize_cursor_label (GDisplay *gdisp) { /* Set a proper size for the coordinates display in the statusbar. */ gchar buffer[CURSOR_STR_LENGTH]; gint cursor_label_width; gint label_frame_size_difference; if (gdisp->dot_for_dot) { g_snprintf (gdisp->cursor_format_str, sizeof (gdisp->cursor_format_str), "%%s%%d%%s%%d"); g_snprintf (buffer, sizeof (buffer), gdisp->cursor_format_str, "", gdisp->gimage->width, ", ", gdisp->gimage->height); } else /* show real world units */ { gdouble unit_factor = gimp_unit_get_factor (gdisp->gimage->unit); g_snprintf (gdisp->cursor_format_str, sizeof (gdisp->cursor_format_str), "%%s%%.%df%%s%%.%df %s", gimp_unit_get_digits (gdisp->gimage->unit), gimp_unit_get_digits (gdisp->gimage->unit), gimp_unit_get_symbol (gdisp->gimage->unit)); g_snprintf (buffer, sizeof (buffer), gdisp->cursor_format_str, "", (gdouble) gdisp->gimage->width * unit_factor / gdisp->gimage->xresolution, ", ", (gdouble) gdisp->gimage->height * unit_factor / gdisp->gimage->yresolution); } cursor_label_width = gdk_string_width (gtk_widget_get_style (gdisp->cursor_label)->font, buffer); /* find out how many pixels the label's parent frame is bigger than * the label itself */ label_frame_size_difference = gdisp->cursor_label->parent->allocation.width - gdisp->cursor_label->allocation.width; gtk_widget_set_usize (gdisp->cursor_label, cursor_label_width, -1); if (label_frame_size_difference) /* don't resize if this is a new display */ gtk_widget_set_usize (gdisp->cursor_label->parent, cursor_label_width + label_frame_size_difference, -1); gdisplay_update_cursor (gdisp, gdisp->cursor_x, gdisp->cursor_y); } void gdisplay_remove_and_delete (GDisplay *gdisp) { /* remove the display from the list */ display_list = g_slist_remove (display_list, (void *) gdisp); gdisplay_delete (gdisp); } static void gdisplay_add_update_area (GDisplay *gdisp, gint x, gint y, gint w, gint h) { GimpArea * ga; ga = (GimpArea *) g_malloc (sizeof (GimpArea)); ga->x1 = CLAMP (x, 0, gdisp->gimage->width); ga->y1 = CLAMP (y, 0, gdisp->gimage->height); ga->x2 = CLAMP (x + w, 0, gdisp->gimage->width); ga->y2 = CLAMP (y + h, 0, gdisp->gimage->height); gdisp->update_areas = gdisplay_process_area_list (gdisp->update_areas, ga); } static void gdisplay_add_display_area (GDisplay *gdisp, gint x, gint y, gint w, gint h) { GimpArea * ga; ga = g_new (GimpArea, 1); ga->x1 = CLAMP (x, 0, gdisp->disp_width); ga->y1 = CLAMP (y, 0, gdisp->disp_height); ga->x2 = CLAMP (x + w, 0, gdisp->disp_width); ga->y2 = CLAMP (y + h, 0, gdisp->disp_height); gdisp->display_areas = gdisplay_process_area_list (gdisp->display_areas, ga); } static void gdisplay_paint_area (GDisplay *gdisp, gint x, gint y, gint w, gint h) { gint x1, y1, x2, y2; /* Bounds check */ x1 = CLAMP (x, 0, gdisp->gimage->width); y1 = CLAMP (y, 0, gdisp->gimage->height); x2 = CLAMP (x + w, 0, gdisp->gimage->width); y2 = CLAMP (y + h, 0, gdisp->gimage->height); x = x1; y = y1; w = (x2 - x1); h = (y2 - y1); /* calculate the extents of the update as limited by what's visible */ gdisplay_untransform_coords (gdisp, 0, 0, &x1, &y1, FALSE, FALSE); gdisplay_untransform_coords (gdisp, gdisp->disp_width, gdisp->disp_height, &x2, &y2, FALSE, FALSE); gimage_invalidate (gdisp->gimage, x, y, w, h, x1, y1, x2, y2); /* display the area */ gdisplay_transform_coords (gdisp, x, y, &x1, &y1, FALSE); gdisplay_transform_coords (gdisp, x + w, y + h, &x2, &y2, FALSE); gdisplay_expose_area (gdisp, x1, y1, (x2 - x1), (y2 - y1)); } static void gdisplay_display_area (GDisplay *gdisp, gint x, gint y, gint w, gint h) { gint sx, sy; gint x1, y1; gint x2, y2; gint dx, dy; gint i, j; GList *list; guchar *buf; gint bpp, bpl; buf = gximage_get_data (); bpp = gximage_get_bpp (); bpl = gximage_get_bpl (); sx = SCALEX (gdisp, gdisp->gimage->width); sy = SCALEY (gdisp, gdisp->gimage->height); /* Bounds check */ x1 = CLAMP (x, 0, gdisp->disp_width); y1 = CLAMP (y, 0, gdisp->disp_height); x2 = CLAMP (x + w, 0, gdisp->disp_width); y2 = CLAMP (y + h, 0, gdisp->disp_height); if (y1 < gdisp->disp_yoffset) { gdk_draw_rectangle (gdisp->canvas->window, gdisp->canvas->style->bg_gc[GTK_STATE_NORMAL], 1, x, y, w, gdisp->disp_yoffset - y); /* X X X . # . . . . */ y1 = gdisp->disp_yoffset; } if (x1 < gdisp->disp_xoffset) { gdk_draw_rectangle (gdisp->canvas->window, gdisp->canvas->style->bg_gc[GTK_STATE_NORMAL], 1, x, y1, gdisp->disp_xoffset - x, h); /* . . . X # . X . . */ x1 = gdisp->disp_xoffset; } if (x2 > (gdisp->disp_xoffset + sx)) { gdk_draw_rectangle (gdisp->canvas->window, gdisp->canvas->style->bg_gc[GTK_STATE_NORMAL], 1, gdisp->disp_xoffset + sx, y1, x2 - (gdisp->disp_xoffset + sx), h - (y1-y)); /* . . . . # X . . X */ x2 = gdisp->disp_xoffset + sx; } if (y2 > (gdisp->disp_yoffset + sy)) { gdk_draw_rectangle (gdisp->canvas->window, gdisp->canvas->style->bg_gc[GTK_STATE_NORMAL], 1, x1, gdisp->disp_yoffset + sy, x2-x1, y2 - (gdisp->disp_yoffset + sy)); /* . . . . # . . X . */ y2 = gdisp->disp_yoffset + sy; } /* display the image in GXIMAGE_WIDTH x GXIMAGE_HEIGHT sized chunks */ for (i = y1; i < y2; i += GXIMAGE_HEIGHT) for (j = x1; j < x2; j += GXIMAGE_WIDTH) { dx = MIN (x2 - j, GXIMAGE_WIDTH); dy = MIN (y2 - i, GXIMAGE_HEIGHT); render_image (gdisp, j - gdisp->disp_xoffset, i - gdisp->disp_yoffset, dx, dy); #if 0 /* Invalidate the projection just after we render it! */ gimage_invalidate_without_render (gdisp->gimage, j - gdisp->disp_xoffset, i - gdisp->disp_yoffset, dx, dy, 0, 0, 0, 0); #endif list = gdisp->cd_list; while (list) { ColorDisplayNode *node = (ColorDisplayNode *) list->data; node->cd_convert (node->cd_ID, buf, dx, dy, bpp, bpl); list = list->next; } gximage_put (gdisp->canvas->window, j, i, dx, dy, gdisp->offset_x, gdisp->offset_y); } } gint gdisplay_mask_value (GDisplay *gdisp, gint x, gint y) { /* move the coordinates from screen space to image space */ gdisplay_untransform_coords (gdisp, x, y, &x, &y, FALSE, 0); return gimage_mask_value (gdisp->gimage, x, y); } gint gdisplay_mask_bounds (GDisplay *gdisp, gint *x1, gint *y1, gint *x2, gint *y2) { Layer *layer; gint off_x; gint off_y; /* If there is a floating selection, handle things differently */ if ((layer = gimage_floating_sel (gdisp->gimage))) { drawable_offsets (GIMP_DRAWABLE(layer), &off_x, &off_y); if (! channel_bounds (gimage_get_mask (gdisp->gimage), x1, y1, x2, y2)) { *x1 = off_x; *y1 = off_y; *x2 = off_x + drawable_width (GIMP_DRAWABLE (layer)); *y2 = off_y + drawable_height (GIMP_DRAWABLE (layer)); } else { *x1 = MIN (off_x, *x1); *y1 = MIN (off_y, *y1); *x2 = MAX (off_x + drawable_width (GIMP_DRAWABLE (layer)), *x2); *y2 = MAX (off_y + drawable_height (GIMP_DRAWABLE (layer)), *y2); } } else if (! channel_bounds (gimage_get_mask (gdisp->gimage), x1, y1, x2, y2)) return FALSE; gdisplay_transform_coords (gdisp, *x1, *y1, x1, y1, 0); gdisplay_transform_coords (gdisp, *x2, *y2, x2, y2, 0); /* Make sure the extents are within bounds */ *x1 = CLAMP (*x1, 0, gdisp->disp_width); *y1 = CLAMP (*y1, 0, gdisp->disp_height); *x2 = CLAMP (*x2, 0, gdisp->disp_width); *y2 = CLAMP (*y2, 0, gdisp->disp_height); return TRUE; } void gdisplay_transform_coords (GDisplay *gdisp, gint x, gint y, gint *nx, gint *ny, gboolean use_offsets) { gdouble scalex; gdouble scaley; gint offset_x; gint offset_y; /* transform from image coordinates to screen coordinates */ scalex = SCALEFACTOR_X (gdisp); scaley = SCALEFACTOR_Y (gdisp); if (use_offsets) drawable_offsets (gimage_active_drawable (gdisp->gimage), &offset_x, &offset_y); else { offset_x = offset_y = 0; } *nx = (int) (scalex * (x + offset_x) - gdisp->offset_x); *ny = (int) (scaley * (y + offset_y) - gdisp->offset_y); *nx += gdisp->disp_xoffset; *ny += gdisp->disp_yoffset; } void gdisplay_untransform_coords (GDisplay *gdisp, gint x, gint y, gint *nx, gint *ny, gboolean round, gboolean use_offsets) { gdouble scalex; gdouble scaley; gint offset_x; gint offset_y; x -= gdisp->disp_xoffset; y -= gdisp->disp_yoffset; /* transform from screen coordinates to image coordinates */ scalex = SCALEFACTOR_X (gdisp); scaley = SCALEFACTOR_Y (gdisp); if (use_offsets) drawable_offsets (gimage_active_drawable (gdisp->gimage), &offset_x, &offset_y); else { offset_x = offset_y = 0; } if (round) { *nx = ROUND ((x + gdisp->offset_x) / scalex - offset_x); *ny = ROUND ((y + gdisp->offset_y) / scaley - offset_y); } else { *nx = (int) ((x + gdisp->offset_x) / scalex - offset_x); *ny = (int) ((y + gdisp->offset_y) / scaley - offset_y); } } void gdisplay_transform_coords_f (GDisplay *gdisp, gdouble x, gdouble y, gdouble *nx, gdouble *ny, gboolean use_offsets) { gdouble scalex; gdouble scaley; gint offset_x; gint offset_y; /* transform from gimp coordinates to screen coordinates */ scalex = SCALEFACTOR_X (gdisp); scaley = SCALEFACTOR_Y (gdisp); if (use_offsets) drawable_offsets (gimage_active_drawable (gdisp->gimage), &offset_x, &offset_y); else { offset_x = offset_y = 0; } *nx = scalex * (x + offset_x) - gdisp->offset_x; *ny = scaley * (y + offset_y) - gdisp->offset_y; *nx += gdisp->disp_xoffset; *ny += gdisp->disp_yoffset; } void gdisplay_untransform_coords_f (GDisplay *gdisp, gdouble x, gdouble y, gdouble *nx, gdouble *ny, gboolean use_offsets) { gdouble scalex; gdouble scaley; gint offset_x; gint offset_y; x -= gdisp->disp_xoffset; y -= gdisp->disp_yoffset; /* transform from screen coordinates to gimp coordinates */ scalex = SCALEFACTOR_X (gdisp); scaley = SCALEFACTOR_Y (gdisp); if (use_offsets) drawable_offsets (gimage_active_drawable (gdisp->gimage), &offset_x, &offset_y); else { offset_x = offset_y = 0; } *nx = (x + gdisp->offset_x) / scalex - offset_x; *ny = (y + gdisp->offset_y) / scaley - offset_y; } /* install and remove tool cursor from gdisplay... */ void gdisplay_install_tool_cursor (GDisplay *gdisp, GdkCursorType cursor_type) { if (gdisp->current_cursor != (gint)cursor_type) { gdisp->current_cursor = (gint)cursor_type; if (!gdisp->using_override_cursor) { change_win_cursor (gdisp->canvas->window, cursor_type); } } } /* install an override-cursor on gdisplay... */ void gdisplay_install_override_cursor (GDisplay *gdisp, GdkCursorType cursor_type) { if ((!gdisp->using_override_cursor) || ( (gdisp->using_override_cursor) && (gdisp->override_cursor != cursor_type) ) ) { gdisp->override_cursor = cursor_type; gdisp->using_override_cursor = TRUE; change_win_cursor (gdisp->canvas->window, cursor_type); } } /* remove an override-cursor from gdisplay... */ void gdisplay_remove_override_cursor (GDisplay *gdisp) { if (gdisp->using_override_cursor) { gdisp->using_override_cursor = FALSE; change_win_cursor (gdisp->canvas->window, gdisp->current_cursor); } else { /* g_warning ("Tried to remove override-cursor from un-overridden gdisp."); */ } } void gdisplay_remove_tool_cursor (GDisplay *gdisp) { unset_win_cursor (gdisp->canvas->window); } void gdisplay_set_menu_sensitivity (GDisplay *gdisp) { GimpImageBaseType base_type = 0; GimpImageType type = -1; GimpDrawable *drawable = NULL; Layer *layer = NULL; gboolean fs = FALSE; gboolean aux = FALSE; gboolean lm = FALSE; gboolean lp = FALSE; gboolean alpha = FALSE; gint lind = -1; gint lnum = -1; if (gdisp) { base_type = gimage_base_type (gdisp->gimage); fs = (gimage_floating_sel (gdisp->gimage) != NULL); aux = (gimage_get_active_channel (gdisp->gimage) != NULL); lp = (gdisp->gimage->layers != NULL); drawable = gimage_active_drawable (gdisp->gimage); if (drawable) type = drawable_type (drawable); if (lp) { layer = gimage_get_active_layer (gdisp->gimage); if (layer) { lm = layer_get_mask (layer) ? TRUE : FALSE; alpha = layer_has_alpha (layer); } lind = gimage_get_layer_index (gdisp->gimage, gdisp->gimage->active_layer); lnum = g_slist_length (gdisp->gimage->layers); } } #define SET_SENSITIVE(menu,condition) \ menus_set_sensitive ("/" menu, (condition) != 0) #define SET_STATE(menu,condition) \ menus_set_state ("/" menu, (condition) != 0) SET_SENSITIVE ("File/Save", gdisp && drawable); SET_SENSITIVE ("File/Save As...", gdisp && drawable); SET_SENSITIVE ("File/Revert", gdisp && gdisp->gimage->filename); SET_SENSITIVE ("File/Close", gdisp); SET_SENSITIVE ("Edit", gdisp); SET_SENSITIVE ("Edit/Buffer", gdisp); if (gdisp) { SET_SENSITIVE ("Edit/Undo", undo_get_undo_name (gdisp->gimage)); SET_SENSITIVE ("Edit/Redo", undo_get_redo_name (gdisp->gimage)); SET_SENSITIVE ("Edit/Cut", lp); SET_SENSITIVE ("Edit/Copy", lp); SET_SENSITIVE ("Edit/Buffer/Cut Named...", lp); SET_SENSITIVE ("Edit/Buffer/Copy Named...", lp); SET_SENSITIVE ("Edit/Clear", lp); SET_SENSITIVE ("Edit/Fill with FG Color", lp); SET_SENSITIVE ("Edit/Fill with BG Color", lp); SET_SENSITIVE ("Edit/Stroke", lp); } SET_SENSITIVE ("Select", gdisp && lp); SET_SENSITIVE ("Select/Save to Channel", !fs); SET_SENSITIVE ("View", gdisp); SET_SENSITIVE ("View/Zoom", gdisp); if (gdisp) { SET_STATE ("View/Toggle Selection", !gdisp->select->hidden); SET_STATE ("View/Toggle Rulers", GTK_WIDGET_VISIBLE (gdisp->origin) ? 1 : 0); SET_STATE ("View/Toggle Guides", gdisp->draw_guides); SET_STATE ("View/Snap to Guides", gdisp->snap_to_guides); SET_STATE ("View/Toggle Statusbar", GTK_WIDGET_VISIBLE (gdisp->statusarea) ? 1 : 0); SET_STATE ("View/Dot for Dot", gdisp->dot_for_dot); } SET_SENSITIVE ("Image", gdisp); SET_SENSITIVE ("Image/Mode", gdisp); SET_SENSITIVE ("Image/Colors", gdisp); SET_SENSITIVE ("Image/Colors/Auto", gdisp); SET_SENSITIVE ("Image/Alpha", gdisp); SET_SENSITIVE ("Image/Transforms", gdisp); SET_SENSITIVE ("Image/Transforms/Rotate", gdisp); if (gdisp) { SET_SENSITIVE ("Image/Mode/RGB", (base_type != RGB)); SET_SENSITIVE ("Image/Mode/Grayscale", (base_type != GRAY)); SET_SENSITIVE ("Image/Mode/Indexed...", (base_type != INDEXED)); SET_SENSITIVE ("Image/Histogram...", lp); SET_SENSITIVE ("Image/Colors", lp); SET_SENSITIVE ("Image/Colors/Color Balance...", (base_type == RGB)); SET_SENSITIVE ("Image/Colors/Hue-Saturation...", (base_type == RGB)); SET_SENSITIVE ("Image/Colors/Brightness-Contrast...", (base_type != INDEXED)); SET_SENSITIVE ("Image/Colors/Threshold...", (base_type != INDEXED)); SET_SENSITIVE ("Image/Colors/Levels...", (base_type != INDEXED)); SET_SENSITIVE ("Image/Colors/Curves...", (base_type != INDEXED)); SET_SENSITIVE ("Image/Colors/Desaturate", (base_type == RGB)); SET_SENSITIVE ("Image/Colors/Posterize...", (base_type != INDEXED)); SET_SENSITIVE ("Image/Colors/Invert", (base_type != INDEXED)); SET_SENSITIVE ("Image/Colors/Auto/Equalize", (base_type != INDEXED)); SET_SENSITIVE ("Image/Alpha/Add Alpha Channel", !fs && !aux && lp && !lm && !alpha); SET_SENSITIVE ("Image/Transforms/Offset...", lp); } SET_SENSITIVE ("Layers/Stack", gdisp); if (gdisp) { SET_SENSITIVE ("Layers/Stack/Previous Layer", !fs && !aux && lp && lind > 0); SET_SENSITIVE ("Layers/Stack/Next Layer", !fs && !aux && lp && lind < (lnum - 1)); SET_SENSITIVE ("Layers/Stack/Raise Layer", !fs && !aux && lp && alpha && lind > 0); SET_SENSITIVE ("Layers/Stack/Lower Layer", !fs && !aux && lp && alpha && lind < (lnum - 1)); SET_SENSITIVE ("Layers/Stack/Layer to Top", !fs && !aux && lp && alpha && lind > 0); SET_SENSITIVE ("Layers/Stack/Layer to Bottom", !fs && !aux && lp && alpha && lind < (lnum - 1)); } SET_SENSITIVE ("Layers/Rotate", gdisp && !aux && !lm & lp); SET_SENSITIVE ("Layers/Layer to Imagesize", gdisp && !aux && lp); SET_SENSITIVE ("Layers/Anchor Layer", gdisp && fs && !aux && lp); SET_SENSITIVE ("Layers/Merge Visible Layers...", gdisp && !fs && !aux && lp); SET_SENSITIVE ("Layers/Flatten Image", gdisp && !fs && !aux && lp); SET_SENSITIVE ("Layers/Alpha to Selection", gdisp && !aux && lp && alpha); SET_SENSITIVE ("Layers/Mask to Selection", gdisp && !aux && lm && lp); SET_SENSITIVE ("Layers/Add Alpha Channel", gdisp && !fs && !aux && lp && !lm && !alpha); SET_SENSITIVE ("Filters", gdisp && lp); SET_SENSITIVE ("Script-Fu", gdisp && lp); #undef SET_STATE #undef SET_SENSITIVE plug_in_set_menu_sensitivity (type); } void gdisplay_expose_area (GDisplay *gdisp, gint x, gint y, gint w, gint h) { gdisplay_add_display_area (gdisp, x, y, w, h); } void gdisplay_expose_guide (GDisplay *gdisp, Guide *guide) { gint x; gint y; if (guide->position < 0) return; gdisplay_transform_coords (gdisp, guide->position, guide->position, &x, &y, FALSE); switch (guide->orientation) { case ORIENTATION_HORIZONTAL: gdisplay_expose_area (gdisp, 0, y, gdisp->disp_width, 1); break; case ORIENTATION_VERTICAL: gdisplay_expose_area (gdisp, x, 0, 1, gdisp->disp_height); break; } } void gdisplay_expose_full (GDisplay *gdisp) { gdisplay_add_display_area (gdisp, 0, 0, gdisp->disp_width, gdisp->disp_height); } /**************************************************/ /* Functions independent of a specific gdisplay */ /**************************************************/ GDisplay * gdisplay_active (void) { GdkEvent *event; /* Whoever finds out why we do this (see below) gets a free beer. * Report back the reason to Sven and Mitch ... */ event = gtk_get_current_event (); if (event != NULL) { gdk_event_free (event); } return gimp_context_get_display (gimp_context_get_user ()); } GDisplay * gdisplay_get_ID (gint ID) { GDisplay *gdisp; GSList *list = display_list; /* Traverse the list of displays, returning the one that matches the ID */ /* If no display in the list is a match, return NULL. */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->ID == ID) return gdisp; list = g_slist_next (list); } return NULL; } void gdisplay_update_title (GDisplay *gdisp) { gchar title [MAX_TITLE_BUF]; guint context_id; /* format the title */ gdisplay_format_title (gdisp, title, MAX_TITLE_BUF); gdk_window_set_title (gdisp->shell->window, title); /* update the statusbar */ context_id = gtk_statusbar_get_context_id (GTK_STATUSBAR (gdisp->statusbar), "title"); gtk_statusbar_pop (GTK_STATUSBAR (gdisp->statusbar), context_id); gtk_statusbar_push (GTK_STATUSBAR (gdisp->statusbar), context_id, title); } void gdisplays_update_title (GimpImage *gimage) { GDisplay *gdisp; GSList *list = display_list; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) gdisplay_update_title (gdisp); list = g_slist_next (list); } } void gdisplays_resize_cursor_label (GimpImage *gimage) { GDisplay *gdisp; GSList *list = display_list; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) gdisplay_resize_cursor_label (gdisp); list = g_slist_next (list); } } void gdisplays_setup_scale (GimpImage *gimage) { GDisplay *gdisp; GSList *list = display_list; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) setup_scale (gdisp); list = g_slist_next (list); } } void gdisplays_update_area (GimpImage *gimage, gint x, gint y, gint w, gint h) { GDisplay *gdisp; GSList *list = display_list; /* int x1, y1, x2, y2; */ /* int count = 0; */ /* traverse the linked list of displays */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) { /* We only need to update the first instance that we find of this gimage ID. Otherwise, we would be reconverting the same region unnecessarily. */ /* Um.. I don't think so. If you only do this to the first instance, you don't update other gdisplays pointing to this gimage. I'm going to comment this out to show how it was in case we need to change it back. msw 4/15/1998 */ /* if (! count) gdisplay_add_update_area (gdisp, x, y, w, h); else { gdisplay_transform_coords (gdisp, x, y, &x1, &y1, 0); gdisplay_transform_coords (gdisp, x + w, y + h, &x2, &y2, 0); gdisplay_add_display_area (gdisp, x1, y1, (x2 - x1), (y2 - y1)); } */ gdisplay_add_update_area (gdisp, x, y, w, h); /* Seems like this isn't needed, it's done in gdisplay_flush. -la gdisplay_transform_coords (gdisp, x, y, &x1, &y1, 0); gdisplay_transform_coords (gdisp, x + w, y + h, &x2, &y2, 0); gdisplay_add_display_area (gdisp, x1, y1, (x2 - x1), (y2 - y1)); */ } list = g_slist_next (list); } } void gdisplays_expose_guides (GimpImage *gimage) { GDisplay *gdisp; GList *tmp_list; GSList *list; /* traverse the linked list of displays, handling each one */ list = display_list; while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) { tmp_list = gdisp->gimage->guides; while (tmp_list) { gdisplay_expose_guide (gdisp, tmp_list->data); tmp_list = tmp_list->next; } } list = g_slist_next (list); } } void gdisplays_expose_guide (GimpImage *gimage, Guide *guide) { GDisplay *gdisp; GSList *list; /* traverse the linked list of displays, handling each one */ list = display_list; while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) { gdisplay_expose_guide (gdisp, guide); } list = g_slist_next (list); } } void gdisplays_update_full (GimpImage* gimage) { GDisplay *gdisp; GSList *list = display_list; gint count = 0; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) { if (! count) gdisplay_add_update_area (gdisp, 0, 0, gdisp->gimage->width, gdisp->gimage->height); else gdisplay_add_display_area (gdisp, 0, 0, gdisp->disp_width, gdisp->disp_height); count++; } list = g_slist_next (list); } } void gdisplays_shrink_wrap (GimpImage *gimage) { GDisplay *gdisp; GSList *list = display_list; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage) shrink_wrap_display (gdisp); list = g_slist_next (list); } } void gdisplays_expose_full (void) { GDisplay *gdisp; GSList *list = display_list; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; gdisplay_expose_full (gdisp); list = g_slist_next (list); } } void gdisplays_nav_preview_resized (void) { GDisplay *gdisp; GSList *list = display_list; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->window_nav_dialog) nav_window_preview_resized (gdisp->window_nav_dialog); if (gdisp->nav_popup) nav_window_popup_preview_resized (&gdisp->nav_popup); list = g_slist_next (list); } } void gdisplays_selection_visibility (GimpImage *gimage, SelectionControl function) { GDisplay *gdisp; GSList *list = display_list; gint count = 0; /* traverse the linked list of displays, handling each one */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp->gimage == gimage && gdisp->select) { switch (function) { case SelectionOff: selection_invis (gdisp->select); break; case SelectionLayerOff: selection_layer_invis (gdisp->select); break; case SelectionOn: selection_start (gdisp->select, TRUE); break; case SelectionPause: selection_pause (gdisp->select); break; case SelectionResume: selection_resume (gdisp->select); break; } count++; } list = g_slist_next (list); } } gboolean gdisplays_dirty (void) { gboolean dirty = FALSE; GSList *list = display_list; /* traverse the linked list of displays */ while (list) { if (((GDisplay *) list->data)->gimage->dirty != 0) dirty = TRUE; list = g_slist_next (list); } return dirty; } void gdisplays_delete (void) { GSList *list = display_list; GDisplay *gdisp; /* traverse the linked list of displays */ while (list) { gdisp = (GDisplay *) list->data; list = g_slist_next (list); gtk_widget_destroy (gdisp->shell); } /* free up linked list data */ g_slist_free (display_list); } GDisplay * gdisplays_check_valid (GDisplay *gtest, GimpImage *gimage) { /* Give a gdisp check that it is still valid and points to the required * GimpImage. If not return the first gDisplay that does point to the * gimage. If none found return NULL; */ GSList *list = display_list; GDisplay *gdisp; GDisplay *gdisp_found = NULL; /* traverse the linked list of displays */ while (list) { gdisp = (GDisplay *) list->data; if (gdisp == gtest) return (gtest); if (!gdisp_found && gdisp->gimage == gimage) gdisp_found = gdisp; list = g_slist_next (list); } return (gdisp_found); } static void gdisplays_flush_whenever (gboolean now) { static gboolean flushing = FALSE; GSList *list = display_list; /* no flushing necessary without an interface */ if (no_interface) return; /* this prevents multiple recursive calls to this procedure */ if (flushing == TRUE) { g_warning ("gdisplays_flush() called recursively."); return; } flushing = TRUE; /* traverse the linked list of displays */ while (list) { gdisplay_flush_whenever ((GDisplay *) list->data, now); list = g_slist_next (list); } /* for convenience, we call the L&C flush here */ lc_dialog_flush (); flushing = FALSE; } void gdisplays_flush (void) { gdisplays_flush_whenever (FALSE); } void gdisplays_flush_now (void) { gdisplays_flush_whenever (TRUE); } static guint gdisplay_hash (GDisplay *display) { return (gulong) display; } void gdisplay_reconnect (GDisplay *gdisp, GimpImage *gimage) { gint instance; g_return_if_fail (gdisp != NULL && gimage != NULL); if (gdisp->idle_render.active) { gtk_idle_remove (gdisp->idle_render.idleid); gdisp->idle_render.active = FALSE; } gtk_signal_disconnect_by_data (GTK_OBJECT (gdisp->gimage), gdisp); gdisp->gimage->disp_count--; gimage_delete (gdisp->gimage); instance = gimage->instance_count; gimage->instance_count++; gimage->disp_count++; gdisp->gimage = gimage; gdisp->instance = instance; /* reconnect our clean / dirty signals */ gtk_signal_connect (GTK_OBJECT (gimage), "dirty", GTK_SIGNAL_FUNC(gdisplay_cleandirty_handler), gdisp); gtk_signal_connect (GTK_OBJECT (gimage), "clean", GTK_SIGNAL_FUNC(gdisplay_cleandirty_handler), gdisp); gdisplays_update_title (gimage); gdisplay_expose_full (gdisp); gdisplay_flush (gdisp); } void gdisplays_reconnect (GimpImage *old, GimpImage *new) { GSList *list; GDisplay *gdisp; g_return_if_fail (old != NULL && new != NULL); for (list = display_list; list; list = g_slist_next (list)) { gdisp = list->data; if (gdisp->gimage == old) gdisplay_reconnect (gdisp, new); } } /* Called whenever the underlying gimage is dirtied or cleaned */ static void gdisplay_cleandirty_handler (GimpImage *gimage, void *data) { GDisplay *gdisp = data; gdisplay_update_title (gdisp); } void gdisplays_foreach (GFunc func, gpointer user_data) { g_slist_foreach (display_list, func, user_data); }