/* 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include "gdk/gdkkeysyms.h" #include "appenv.h" #include "actionarea.h" #include "buildmenu.h" #include "colormaps.h" #include "drawable.h" #include "edit_selection.h" #include "errors.h" #include "floating_sel.h" #include "gimage_mask.h" #include "gdisplay.h" #include "general.h" #include "global_edit.h" #include "interface.h" #include "palette.h" #include "selection.h" #include "text_tool.h" #include "tools.h" #include "undo.h" #define FONT_LIST_WIDTH 125 #define FONT_LIST_HEIGHT 200 #define PIXELS 0 #define POINTS 1 #define FOUNDRY 0 #define FAMILY 1 #define WEIGHT 2 #define SLANT 3 #define SET_WIDTH 4 #define SPACING 10 #define SUPERSAMPLE 3 typedef struct _TextTool TextTool; struct _TextTool { GtkWidget *shell; GtkWidget *main_vbox; GtkWidget *font_list; GtkWidget *size_menu; GtkWidget *size_text; GtkWidget *border_text; GtkWidget *text_frame; GtkWidget *the_text; GtkWidget *menus[5]; GtkWidget *option_menus[5]; GtkWidget **foundry_items; GtkWidget **weight_items; GtkWidget **slant_items; GtkWidget **set_width_items; GtkWidget **spacing_items; GtkWidget *antialias_toggle; GdkFont *font; int click_x; int click_y; int font_index; int size_type; int antialias; int foundry; int weight; int slant; int set_width; int spacing; void *gdisp_ptr; }; typedef struct _FontInfo FontInfo; struct _FontInfo { char *family; /* The font family this info struct describes. */ int *foundries; /* An array of valid foundries. */ int *weights; /* An array of valid weights. */ int *slants; /* An array of valid slants. */ int *set_widths; /* An array of valid set widths. */ int *spacings; /* An array of valid spacings */ int **combos; /* An array of valid combinations of the above 5 items */ int ncombos; /* The number of elements in the "combos" array */ link_ptr fontnames; /* An list of valid fontnames. * This is used to make sure a family/foundry/weight/slant/set_width * combination is valid. */ }; static void text_button_press (Tool *, GdkEventButton *, gpointer); static void text_button_release (Tool *, GdkEventButton *, gpointer); static void text_motion (Tool *, GdkEventMotion *, gpointer); static void text_cursor_update (Tool *, GdkEventMotion *, gpointer); static void text_control (Tool *, int, gpointer); static void text_resize_text_widget (TextTool *); static void text_create_dialog (TextTool *); static void text_ok_callback (GtkWidget *, gpointer); static void text_cancel_callback (GtkWidget *, gpointer); static gint text_delete_callback (GtkWidget *, GdkEvent *, gpointer); static void text_pixels_callback (GtkWidget *, gpointer); static void text_points_callback (GtkWidget *, gpointer); static void text_foundry_callback (GtkWidget *, gpointer); static void text_weight_callback (GtkWidget *, gpointer); static void text_slant_callback (GtkWidget *, gpointer); static void text_set_width_callback (GtkWidget *, gpointer); static void text_spacing_callback (GtkWidget *, gpointer); static gint text_size_key_function (GtkWidget *, GdkEventKey *, gpointer); static void text_antialias_update (GtkWidget *, gpointer); static void text_font_item_update (GtkWidget *, gpointer); static void text_validate_combo (TextTool *, int); static void text_get_fonts (void); static void text_insert_font (FontInfo **, int *, char *); static link_ptr text_insert_field (link_ptr, char *, int); static char* text_get_field (char *, int); static int text_field_to_index (char **, int, char *); static int text_is_xlfd_font_name (char *); static int text_get_xlfd (double, int, char *, char *, char *, char *, char *, char *, char *); static int text_load_font (TextTool *); static void text_init_render (TextTool *); static void text_gdk_image_to_region (GdkImage *, int, PixelRegion *); static int text_get_extents (char *, char *, int *, int *, int *, int *); static Layer * text_render (GImage *, int, int, int, char *, char *, int, int); static Argument * text_tool_invoker (Argument *); static Argument * text_tool_get_extents_invoker (Argument *); static ActionAreaItem action_items[] = { { "OK", text_ok_callback, NULL, NULL }, { "Cancel", text_cancel_callback, NULL, NULL }, }; static MenuItem size_metric_items[] = { { "Pixels", 0, 0, text_pixels_callback, (gpointer) PIXELS, NULL, NULL }, { "Points", 0, 0, text_points_callback, (gpointer) POINTS, NULL, NULL }, { NULL, 0, 0, NULL, NULL, NULL, NULL } }; static TextTool *the_text_tool = NULL; static FontInfo **font_info; static int nfonts = -1; static link_ptr foundries = NULL; static link_ptr weights = NULL; static link_ptr slants = NULL; static link_ptr set_widths = NULL; static link_ptr spacings = NULL; static char **foundry_array = NULL; static char **weight_array = NULL; static char **slant_array = NULL; static char **set_width_array = NULL; static char **spacing_array = NULL; static int nfoundries = 0; static int nweights = 0; static int nslants = 0; static int nset_widths = 0; static int nspacings = 0; static void *text_options = NULL; Tool* tools_new_text () { Tool * tool; if (! text_options) text_options = tools_register_no_options (TEXT, "Text Tool Options"); tool = g_malloc (sizeof (Tool)); if (!the_text_tool) { the_text_tool = g_malloc (sizeof (TextTool)); the_text_tool->shell = NULL; the_text_tool->font_list = NULL; the_text_tool->size_menu = NULL; the_text_tool->size_text = NULL; the_text_tool->border_text = NULL; the_text_tool->text_frame = NULL; the_text_tool->the_text = NULL; the_text_tool->font = NULL; the_text_tool->font_index = 0; the_text_tool->size_type = PIXELS; the_text_tool->antialias = 1; the_text_tool->foundry = 0; the_text_tool->weight = 0; the_text_tool->slant = 0; the_text_tool->set_width = 0; the_text_tool->spacing = 0; } tool->type = TEXT; tool->state = INACTIVE; tool->scroll_lock = 1; /* Do not allow scrolling */ tool->auto_snap_to = TRUE; tool->private = (void *) the_text_tool; tool->button_press_func = text_button_press; tool->button_release_func = text_button_release; tool->motion_func = text_motion; tool->arrow_keys_func = standard_arrow_keys_func; tool->cursor_update_func = text_cursor_update; tool->control_func = text_control; return tool; } void tools_free_text (Tool *tool) { } static void text_button_press (Tool *tool, GdkEventButton *bevent, gpointer gdisp_ptr) { GDisplay *gdisp; Layer *layer; TextTool *text_tool; gdisp = gdisp_ptr; text_tool = tool->private; text_tool->gdisp_ptr = gdisp_ptr; tool->state = ACTIVE; tool->gdisp_ptr = gdisp_ptr; gdisplay_untransform_coords (gdisp, bevent->x, bevent->y, &text_tool->click_x, &text_tool->click_y, TRUE, 0); if ((layer = gimage_pick_correlate_layer (gdisp->gimage, text_tool->click_x, text_tool->click_y))) /* If there is a floating selection, and this aint it, use the move tool */ if (layer_is_floating_sel (layer)) { init_edit_selection (tool, gdisp_ptr, bevent, LayerTranslate); return; } if (nfonts == -1) { text_get_fonts (); if (nfonts == 0) { message_box ("Note: No fonts found. Text tool not available.", NULL, NULL); nfonts = -1; return; } } if (!text_tool->shell) text_create_dialog (text_tool); switch (gimage_base_type (gdisp->gimage)) { case RGB: case GRAY: if (!GTK_WIDGET_VISIBLE (text_tool->antialias_toggle)) gtk_widget_show (text_tool->antialias_toggle); break; case INDEXED: if (GTK_WIDGET_VISIBLE (text_tool->antialias_toggle)) gtk_widget_hide (text_tool->antialias_toggle); break; } if (!GTK_WIDGET_VISIBLE (text_tool->shell)) gtk_widget_show (text_tool->shell); } static void text_button_release (Tool *tool, GdkEventButton *bevent, gpointer gdisp_ptr) { tool->state = INACTIVE; } static void text_motion (Tool *tool, GdkEventMotion *mevent, gpointer gdisp_ptr) { } static void text_cursor_update (Tool *tool, GdkEventMotion *mevent, gpointer gdisp_ptr) { GDisplay *gdisp; Layer *layer; int x, y; gdisp = (GDisplay *) gdisp_ptr; gdisplay_untransform_coords (gdisp, mevent->x, mevent->y, &x, &y, FALSE, FALSE); if ((layer = gimage_pick_correlate_layer (gdisp->gimage, x, y))) /* if there is a floating selection, and this aint it... */ if (layer_is_floating_sel (layer)) { gdisplay_install_tool_cursor (gdisp, GDK_FLEUR); return; } gdisplay_install_tool_cursor (gdisp, GDK_XTERM); } static void text_control (Tool *tool, int action, gpointer gdisp_ptr) { switch (action) { case PAUSE : break; case RESUME : break; case HALT : if (the_text_tool->shell != NULL && GTK_WIDGET_VISIBLE (the_text_tool->shell)) gtk_widget_hide (the_text_tool->shell); break; } } static void text_resize_text_widget (TextTool *text_tool) { GtkStyle *style; style = gtk_style_new (); gdk_font_unref (style->font); style->font = text_tool->font; gdk_font_ref (style->font); gtk_widget_set_style (text_tool->the_text, style); } static void text_create_dialog (TextTool *text_tool) { GtkWidget *top_hbox; GtkWidget *right_vbox; GtkWidget *text_hbox; GtkWidget *list_box; GtkWidget *list_item; GtkWidget *size_opt_menu; GtkWidget *border_label; GtkWidget *menu_table; GtkWidget *menu_label; GtkWidget **menu_items[5]; GtkWidget *alignment; int nmenu_items[5]; char *menu_strs[5]; char **menu_item_strs[5]; int *font_infos[5]; MenuItemCallback menu_callbacks[5]; int i, j; /* Create the shell and vertical & horizontal boxes */ text_tool->shell = gtk_dialog_new (); gtk_window_set_title (GTK_WINDOW (text_tool->shell), "Text Tool"); gtk_window_set_policy (GTK_WINDOW (text_tool->shell), FALSE, TRUE, TRUE); gtk_window_position (GTK_WINDOW (text_tool->shell), GTK_WIN_POS_MOUSE); /* handle the wm close signal */ gtk_signal_connect (GTK_OBJECT (text_tool->shell), "delete_event", GTK_SIGNAL_FUNC (text_delete_callback), text_tool); text_tool->main_vbox = gtk_vbox_new (FALSE, 2); gtk_container_border_width (GTK_CONTAINER (text_tool->main_vbox), 2); gtk_box_pack_start (GTK_BOX (GTK_DIALOG (text_tool->shell)->vbox), text_tool->main_vbox, TRUE, TRUE, 0); top_hbox = gtk_hbox_new (FALSE, 1); gtk_box_pack_start (GTK_BOX (text_tool->main_vbox), top_hbox, TRUE, TRUE, 0); /* Create the font listbox */ list_box = gtk_scrolled_window_new (NULL, NULL); gtk_widget_set_usize (list_box, FONT_LIST_WIDTH, FONT_LIST_HEIGHT); gtk_box_pack_start (GTK_BOX (top_hbox), list_box, TRUE, TRUE, 0); text_tool->font_list = gtk_list_new (); gtk_container_add (GTK_CONTAINER (list_box), text_tool->font_list); gtk_list_set_selection_mode (GTK_LIST (text_tool->font_list), GTK_SELECTION_BROWSE); for (i = 0; i < nfonts; i++) { list_item = gtk_list_item_new_with_label (font_info[i]->family); gtk_container_add (GTK_CONTAINER (text_tool->font_list), list_item); gtk_signal_connect (GTK_OBJECT (list_item), "select", (GtkSignalFunc) text_font_item_update, (gpointer) ((long) i)); gtk_widget_show (list_item); } gtk_widget_show (text_tool->font_list); /* Create the box to hold options */ right_vbox = gtk_vbox_new (FALSE, 2); gtk_box_pack_start (GTK_BOX (top_hbox), right_vbox, TRUE, TRUE, 2); /* Create the text hbox, size text, and fonts size metric option menu */ text_hbox = gtk_hbox_new (FALSE, 2); gtk_box_pack_start (GTK_BOX (right_vbox), text_hbox, FALSE, FALSE, 0); text_tool->size_text = gtk_entry_new (); gtk_widget_set_usize (text_tool->size_text, 75, 0); gtk_entry_set_text (GTK_ENTRY (text_tool->size_text), "50"); gtk_signal_connect (GTK_OBJECT (text_tool->size_text), "key_press_event", (GtkSignalFunc) text_size_key_function, text_tool); gtk_box_pack_start (GTK_BOX (text_hbox), text_tool->size_text, TRUE, TRUE, 0); /* Create the size menu */ size_metric_items[0].user_data = text_tool; size_metric_items[1].user_data = text_tool; text_tool->size_menu = build_menu (size_metric_items, NULL); size_opt_menu = gtk_option_menu_new (); gtk_box_pack_start (GTK_BOX (text_hbox), size_opt_menu, FALSE, FALSE, 0); /* create the text entry widget */ text_tool->text_frame = gtk_frame_new (NULL); gtk_frame_set_shadow_type (GTK_FRAME (text_tool->text_frame), GTK_SHADOW_NONE); gtk_box_pack_start (GTK_BOX (text_tool->main_vbox), text_tool->text_frame, FALSE, FALSE, 2); text_tool->the_text = gtk_entry_new (); gtk_container_add (GTK_CONTAINER (text_tool->text_frame), text_tool->the_text); /* create the antialiasing toggle button */ text_tool->antialias_toggle = gtk_check_button_new_with_label ("Antialiasing"); gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (text_tool->antialias_toggle), text_tool->antialias); gtk_box_pack_start (GTK_BOX (right_vbox), text_tool->antialias_toggle, FALSE, FALSE, 0); gtk_signal_connect (GTK_OBJECT (text_tool->antialias_toggle), "toggled", (GtkSignalFunc) text_antialias_update, text_tool); /* Allocate the arrays for the foundry, weight, slant, set_width and spacing menu items */ text_tool->foundry_items = (GtkWidget **) g_malloc (sizeof (GtkWidget *) * nfoundries); text_tool->weight_items = (GtkWidget **) g_malloc (sizeof (GtkWidget *) * nweights); text_tool->slant_items = (GtkWidget **) g_malloc (sizeof (GtkWidget *) * nslants); text_tool->set_width_items = (GtkWidget **) g_malloc (sizeof (GtkWidget *) * nset_widths); text_tool->spacing_items = (GtkWidget **) g_malloc (sizeof (GtkWidget *) * nspacings); menu_items[0] = text_tool->foundry_items; menu_items[1] = text_tool->weight_items; menu_items[2] = text_tool->slant_items; menu_items[3] = text_tool->set_width_items; menu_items[4] = text_tool->spacing_items; nmenu_items[0] = nfoundries; nmenu_items[1] = nweights; nmenu_items[2] = nslants; nmenu_items[3] = nset_widths; nmenu_items[4] = nspacings; menu_strs[0] = "Foundry"; menu_strs[1] = "Weight"; menu_strs[2] = "Slant"; menu_strs[3] = "Set width"; menu_strs[4] = "Spacing"; menu_item_strs[0] = foundry_array; menu_item_strs[1] = weight_array; menu_item_strs[2] = slant_array; menu_item_strs[3] = set_width_array; menu_item_strs[4] = spacing_array; menu_callbacks[0] = text_foundry_callback; menu_callbacks[1] = text_weight_callback; menu_callbacks[2] = text_slant_callback; menu_callbacks[3] = text_set_width_callback; menu_callbacks[4] = text_spacing_callback; font_infos[0] = font_info[0]->foundries; font_infos[1] = font_info[0]->weights; font_infos[2] = font_info[0]->slants; font_infos[3] = font_info[0]->set_widths; font_infos[4] = font_info[0]->spacings; menu_table = gtk_table_new (6, 2, FALSE); gtk_box_pack_start (GTK_BOX (right_vbox), menu_table, TRUE, TRUE, 0); /* Create the other menus */ for (i = 0; i < 5; i++) { menu_label = gtk_label_new (menu_strs[i]); gtk_misc_set_alignment (GTK_MISC (menu_label), 0.0, 0.5); gtk_table_attach (GTK_TABLE (menu_table), menu_label, 0, 1, i, i + 1, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 1); alignment = gtk_alignment_new (0.0, 0.0, 0.0, 0.0); gtk_table_attach (GTK_TABLE (menu_table), alignment, 1, 2, i, i + 1, GTK_EXPAND | GTK_SHRINK | GTK_FILL, GTK_SHRINK, 1, 1); text_tool->menus[i] = gtk_menu_new (); for (j = 0; j < nmenu_items[i]; j++) { menu_items[i][j] = gtk_menu_item_new_with_label (menu_item_strs[i][j]); gtk_widget_set_sensitive (menu_items[i][j], font_infos[i][j]); gtk_container_add (GTK_CONTAINER (text_tool->menus[i]), menu_items[i][j]); gtk_signal_connect (GTK_OBJECT (menu_items[i][j]), "activate", (GtkSignalFunc) menu_callbacks[i], (gpointer) ((long) j)); gtk_widget_show (menu_items[i][j]); } text_tool->option_menus[i] = gtk_option_menu_new (); gtk_container_add (GTK_CONTAINER (alignment), text_tool->option_menus[i]); gtk_widget_show (menu_label); gtk_widget_show (text_tool->option_menus[i]); gtk_widget_show (alignment); gtk_option_menu_set_menu (GTK_OPTION_MENU (text_tool->option_menus[i]), text_tool->menus[i]); } /* Create the border text hbox, border text, and label */ border_label = gtk_label_new ("Border"); gtk_misc_set_alignment (GTK_MISC (border_label), 0.0, 0.5); gtk_table_attach (GTK_TABLE (menu_table), border_label, 0, 1, i, i + 1, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 1); alignment = gtk_alignment_new (0.0, 0.0, 0.0, 0.0); gtk_table_attach (GTK_TABLE (menu_table), alignment, 1, 2, i, i + 1, GTK_EXPAND | GTK_SHRINK | GTK_FILL, GTK_SHRINK, 1, 1); text_tool->border_text = gtk_entry_new (); gtk_widget_set_usize (text_tool->border_text, 75, 25); gtk_entry_set_text (GTK_ENTRY (text_tool->border_text), "0"); gtk_container_add (GTK_CONTAINER (alignment), text_tool->border_text); gtk_widget_show (alignment); /* Create the action area */ action_items[0].user_data = text_tool; action_items[1].user_data = text_tool; build_action_area (GTK_DIALOG (text_tool->shell), action_items, 2, 0); /* Show the widgets */ gtk_widget_show (menu_table); gtk_widget_show (text_tool->antialias_toggle); gtk_widget_show (text_tool->size_text); gtk_widget_show (border_label); gtk_widget_show (text_tool->border_text); gtk_widget_show (size_opt_menu); gtk_widget_show (text_hbox); gtk_widget_show (list_box); gtk_widget_show (right_vbox); gtk_widget_show (top_hbox); gtk_widget_show (text_tool->the_text); gtk_widget_show (text_tool->text_frame); gtk_widget_show (text_tool->main_vbox); /* Post initialization */ gtk_option_menu_set_menu (GTK_OPTION_MENU (size_opt_menu), text_tool->size_menu); if (nfonts) text_load_font (text_tool); /* Show the shell */ gtk_widget_show (text_tool->shell); } static void text_ok_callback (GtkWidget *w, gpointer client_data) { TextTool * text_tool; text_tool = (TextTool *) client_data; if (GTK_WIDGET_VISIBLE (text_tool->shell)) gtk_widget_hide (text_tool->shell); text_init_render (text_tool); } static gint text_delete_callback (GtkWidget *w, GdkEvent *e, gpointer client_data) { text_cancel_callback (w, client_data); return FALSE; } static void text_cancel_callback (GtkWidget *w, gpointer client_data) { TextTool * text_tool; text_tool = (TextTool *) client_data; if (GTK_WIDGET_VISIBLE (text_tool->shell)) gtk_widget_hide (text_tool->shell); } static void text_font_item_update (GtkWidget *w, gpointer data) { FontInfo *font; int old_index; int i, index; /* Is this font being selected? */ if (w->state != GTK_STATE_SELECTED) return; index = (long) data; old_index = the_text_tool->font_index; the_text_tool->font_index = index; font = font_info[the_text_tool->font_index]; if (the_text_tool->foundry && !font->foundries[the_text_tool->foundry]) { the_text_tool->foundry = 0; gtk_option_menu_set_history (GTK_OPTION_MENU (the_text_tool->option_menus[0]), 0); } if (the_text_tool->weight && !font->weights[the_text_tool->weight]) { the_text_tool->weight = 0; gtk_option_menu_set_history (GTK_OPTION_MENU (the_text_tool->option_menus[1]), 0); } if (the_text_tool->slant && !font->slants[the_text_tool->slant]) { the_text_tool->slant = 0; gtk_option_menu_set_history (GTK_OPTION_MENU (the_text_tool->option_menus[2]), 0); } if (the_text_tool->set_width && !font->set_widths[the_text_tool->set_width]) { the_text_tool->set_width = 0; gtk_option_menu_set_history (GTK_OPTION_MENU (the_text_tool->option_menus[3]), 0); } if (the_text_tool->spacing && !font->spacings[the_text_tool->spacing]) { the_text_tool->spacing = 0; gtk_option_menu_set_history (GTK_OPTION_MENU (the_text_tool->option_menus[4]), 0); } for (i = 0; i < nfoundries; i++) gtk_widget_set_sensitive (the_text_tool->foundry_items[i], font->foundries[i]); for (i = 0; i < nweights; i++) gtk_widget_set_sensitive (the_text_tool->weight_items[i], font->weights[i]); for (i = 0; i < nslants; i++) gtk_widget_set_sensitive (the_text_tool->slant_items[i], font->slants[i]); for (i = 0; i < nset_widths; i++) gtk_widget_set_sensitive (the_text_tool->set_width_items[i], font->set_widths[i]); for (i = 0; i < nspacings; i++) gtk_widget_set_sensitive (the_text_tool->spacing_items[i], font->spacings[i]); if (!text_load_font (the_text_tool)) { the_text_tool->font_index = old_index; return; } } static void text_pixels_callback (GtkWidget *w, gpointer client_data) { TextTool *text_tool; int old_value; text_tool = (TextTool *) client_data; old_value = text_tool->size_type; text_tool->size_type = PIXELS; if (!text_load_font (text_tool)) text_tool->size_type = old_value; } static void text_points_callback (GtkWidget *w, gpointer client_data) { TextTool *text_tool; int old_value; text_tool = (TextTool *) client_data; old_value = text_tool->size_type; text_tool->size_type = POINTS; if (!text_load_font (text_tool)) text_tool->size_type = old_value; } static void text_foundry_callback (GtkWidget *w, gpointer client_data) { int old_value; old_value = the_text_tool->foundry; the_text_tool->foundry = (long) client_data; text_validate_combo (the_text_tool, 0); if (text_load_font (the_text_tool)) the_text_tool->foundry = old_value; } static void text_weight_callback (GtkWidget *w, gpointer client_data) { int old_value; old_value = the_text_tool->weight; the_text_tool->weight = (long) client_data; text_validate_combo (the_text_tool, 1); if (!text_load_font (the_text_tool)) the_text_tool->weight = old_value; } static void text_slant_callback (GtkWidget *w, gpointer client_data) { int old_value; old_value = the_text_tool->slant; the_text_tool->slant = (long) client_data; text_validate_combo (the_text_tool, 2); if (!text_load_font (the_text_tool)) the_text_tool->slant = old_value; } static void text_set_width_callback (GtkWidget *w, gpointer client_data) { int old_value; old_value = the_text_tool->set_width; the_text_tool->set_width = (long) client_data; text_validate_combo (the_text_tool, 3); if (!text_load_font (the_text_tool)) the_text_tool->set_width = old_value; } static void text_spacing_callback (GtkWidget *w, gpointer client_data) { int old_value; old_value = the_text_tool->spacing; the_text_tool->spacing = (long) client_data; text_validate_combo (the_text_tool, 4); if (!text_load_font (the_text_tool)) the_text_tool->spacing = old_value; } static gint text_size_key_function (GtkWidget *w, GdkEventKey *event, gpointer data) { TextTool *text_tool; char buffer[16]; int old_value; text_tool = (TextTool *) data; if (event->keyval == GDK_Return) { gtk_signal_emit_stop_by_name (GTK_OBJECT (w), "key_press_event"); old_value = atoi (gtk_entry_get_text (GTK_ENTRY (text_tool->size_text))); if (!text_load_font (text_tool)) { sprintf (buffer, "%d", old_value); gtk_entry_set_text (GTK_ENTRY (text_tool->size_text), buffer); } return TRUE; } return FALSE; } static void text_antialias_update (GtkWidget *w, gpointer data) { TextTool *text_tool; text_tool = (TextTool *) data; if (GTK_TOGGLE_BUTTON (w)->active) text_tool->antialias = TRUE; else text_tool->antialias = FALSE; } static void text_validate_combo (TextTool *text_tool, int which) { FontInfo *font; int which_val; int new_combo[5]; int best_combo[5]; int best_matches; int matches; int i; font = font_info[text_tool->font_index]; switch (which) { case 0: which_val = text_tool->foundry; break; case 1: which_val = text_tool->weight; break; case 2: which_val = text_tool->slant; break; case 3: which_val = text_tool->set_width; break; case 4: which_val = text_tool->spacing; break; default: which_val = 0; break; } best_matches = -1; best_combo[0] = 0; best_combo[1] = 0; best_combo[2] = 0; best_combo[3] = 0; best_combo[4] = 0; for (i = 0; i < font->ncombos; i++) { /* we must match the which field */ if (font->combos[i][which] == which_val) { matches = 0; new_combo[0] = 0; new_combo[1] = 0; new_combo[2] = 0; new_combo[3] = 0; new_combo[4] = 0; if ((text_tool->foundry == 0) || (text_tool->foundry == font->combos[i][0])) { matches++; if (text_tool->foundry) new_combo[0] = font->combos[i][0]; } if ((text_tool->weight == 0) || (text_tool->weight == font->combos[i][1])) { matches++; if (text_tool->weight) new_combo[1] = font->combos[i][1]; } if ((text_tool->slant == 0) || (text_tool->slant == font->combos[i][2])) { matches++; if (text_tool->slant) new_combo[2] = font->combos[i][2]; } if ((text_tool->set_width == 0) || (text_tool->set_width == font->combos[i][3])) { matches++; if (text_tool->set_width) new_combo[3] = font->combos[i][3]; } if ((text_tool->spacing == 0) || (text_tool->spacing == font->combos[i][4])) { matches++; if (text_tool->spacing) new_combo[4] = font->combos[i][4]; } /* if we get all 5 matches simply return */ if (matches == 5) return; if (matches > best_matches) { best_matches = matches; best_combo[0] = new_combo[0]; best_combo[1] = new_combo[1]; best_combo[2] = new_combo[2]; best_combo[3] = new_combo[3]; best_combo[4] = new_combo[4]; } } } if (best_matches > -1) { if (text_tool->foundry != best_combo[0]) { text_tool->foundry = best_combo[0]; if (which != 0) gtk_option_menu_set_history (GTK_OPTION_MENU (text_tool->option_menus[0]), text_tool->foundry); } if (text_tool->weight != best_combo[1]) { text_tool->weight = best_combo[1]; if (which != 1) gtk_option_menu_set_history (GTK_OPTION_MENU (text_tool->option_menus[1]), text_tool->weight); } if (text_tool->slant != best_combo[2]) { text_tool->slant = best_combo[2]; if (which != 2) gtk_option_menu_set_history (GTK_OPTION_MENU (text_tool->option_menus[2]), text_tool->slant); } if (text_tool->set_width != best_combo[3]) { text_tool->set_width = best_combo[3]; if (which != 3) gtk_option_menu_set_history (GTK_OPTION_MENU (text_tool->option_menus[3]), text_tool->set_width); } if (text_tool->spacing != best_combo[4]) { text_tool->spacing = best_combo[4]; if (which != 4) gtk_option_menu_set_history (GTK_OPTION_MENU (text_tool->option_menus[4]), text_tool->spacing); } } } static void text_get_fonts () { char **fontnames; char *fontname; char *field; link_ptr temp_list; int num_fonts; int index; int i, j; /* construct a valid font pattern */ fontnames = XListFonts (DISPLAY, "-*-*-*-*-*-*-0-0-75-75-*-0-*-*", 32767, &num_fonts); /* the maximum size of the table is the number of font names returned */ font_info = g_malloc (sizeof (FontInfo**) * num_fonts); /* insert the fontnames into a table */ nfonts = 0; for (i = 0; i < num_fonts; i++) if (text_is_xlfd_font_name (fontnames[i])) { text_insert_font (font_info, &nfonts, fontnames[i]); foundries = text_insert_field (foundries, fontnames[i], FOUNDRY); weights = text_insert_field (weights, fontnames[i], WEIGHT); slants = text_insert_field (slants, fontnames[i], SLANT); set_widths = text_insert_field (set_widths, fontnames[i], SET_WIDTH); spacings = text_insert_field (spacings, fontnames[i], SPACING); } XFreeFontNames (fontnames); nfoundries = list_length (foundries) + 1; nweights = list_length (weights) + 1; nslants = list_length (slants) + 1; nset_widths = list_length (set_widths) + 1; nspacings = list_length (spacings) + 1; foundry_array = g_malloc (sizeof (char*) * nfoundries); weight_array = g_malloc (sizeof (char*) * nweights); slant_array = g_malloc (sizeof (char*) * nslants); set_width_array = g_malloc (sizeof (char*) * nset_widths); spacing_array = g_malloc (sizeof (char*) * nspacings); i = 1; temp_list = foundries; while (temp_list) { foundry_array[i++] = temp_list->data; temp_list = temp_list->next; } i = 1; temp_list = weights; while (temp_list) { weight_array[i++] = temp_list->data; temp_list = temp_list->next; } i = 1; temp_list = slants; while (temp_list) { slant_array[i++] = temp_list->data; temp_list = temp_list->next; } i = 1; temp_list = set_widths; while (temp_list) { set_width_array[i++] = temp_list->data; temp_list = temp_list->next; } i = 1; temp_list = spacings; while (temp_list) { spacing_array[i++] = temp_list->data; temp_list = temp_list->next; } foundry_array[0] = "*"; weight_array[0] = "*"; slant_array[0] = "*"; set_width_array[0] = "*"; spacing_array[0] = "*"; for (i = 0; i < nfonts; i++) { font_info[i]->foundries = g_malloc (sizeof (int) * nfoundries); font_info[i]->weights = g_malloc (sizeof (int) * nweights); font_info[i]->slants = g_malloc (sizeof (int) * nslants); font_info[i]->set_widths = g_malloc (sizeof (int) * nset_widths); font_info[i]->spacings = g_malloc (sizeof (int) * nspacings); font_info[i]->ncombos = list_length (font_info[i]->fontnames); font_info[i]->combos = g_malloc (sizeof (int*) * font_info[i]->ncombos); for (j = 0; j < nfoundries; j++) font_info[i]->foundries[j] = 0; for (j = 0; j < nweights; j++) font_info[i]->weights[j] = 0; for (j = 0; j < nslants; j++) font_info[i]->slants[j] = 0; for (j = 0; j < nset_widths; j++) font_info[i]->set_widths[j] = 0; for (j = 0; j < nspacings; j++) font_info[i]->spacings[j] = 0; font_info[i]->foundries[0] = 1; font_info[i]->weights[0] = 1; font_info[i]->slants[0] = 1; font_info[i]->set_widths[0] = 1; font_info[i]->spacings[0] = 1; j = 0; temp_list = font_info[i]->fontnames; while (temp_list) { fontname = temp_list->data; temp_list = temp_list->next; font_info[i]->combos[j] = g_malloc (sizeof (int) * 5); field = text_get_field (fontname, FOUNDRY); index = text_field_to_index (foundry_array, nfoundries, field); font_info[i]->foundries[index] = 1; font_info[i]->combos[j][0] = index; free (field); field = text_get_field (fontname, WEIGHT); index = text_field_to_index (weight_array, nweights, field); font_info[i]->weights[index] = 1; font_info[i]->combos[j][1] = index; free (field); field = text_get_field (fontname, SLANT); index = text_field_to_index (slant_array, nslants, field); font_info[i]->slants[index] = 1; font_info[i]->combos[j][2] = index; free (field); field = text_get_field (fontname, SET_WIDTH); index = text_field_to_index (set_width_array, nset_widths, field); font_info[i]->set_widths[index] = 1; font_info[i]->combos[j][3] = index; free (field); field = text_get_field (fontname, SPACING); index = text_field_to_index (spacing_array, nspacings, field); font_info[i]->spacings[index] = 1; font_info[i]->combos[j][4] = index; free (field); j += 1; } } } static void text_insert_font (FontInfo **table, int *ntable, char *fontname) { FontInfo *temp_info; char *family; int lower, upper; int middle, cmp; /* insert a fontname into a table */ family = text_get_field (fontname, FAMILY); if (!family) return; lower = 0; if (*ntable > 0) { /* Do a binary search to determine if we have already encountered * a font from this family. */ upper = *ntable; while (lower < upper) { middle = (lower + upper) >> 1; cmp = strcmp (family, table[middle]->family); if (cmp == 0) { table[middle]->fontnames = add_to_list (table[middle]->fontnames, g_strdup (fontname)); return; } else if (cmp < 0) upper = middle; else if (cmp > 0) lower = middle+1; } } /* Add another entry to the table for this new font family */ table[*ntable] = g_malloc (sizeof (FontInfo)); table[*ntable]->family = family; table[*ntable]->foundries = NULL; table[*ntable]->weights = NULL; table[*ntable]->slants = NULL; table[*ntable]->set_widths = NULL; table[*ntable]->fontnames = NULL; table[*ntable]->fontnames = add_to_list (table[*ntable]->fontnames, g_strdup (fontname)); (*ntable)++; /* Quickly insert the entry into the table in sorted order * using a modification of insertion sort and the knowledge * that the entries proper position in the table was determined * above in the binary search and is contained in the "lower" * variable. */ if (*ntable > 1) { temp_info = table[*ntable - 1]; upper = *ntable - 1; while (lower != upper) { table[upper] = table[upper-1]; upper -= 1; } table[lower] = temp_info; } } static link_ptr text_insert_field (link_ptr list, char *fontname, int field_num) { link_ptr temp_list; link_ptr prev_list; link_ptr new_list; char *field; int cmp; field = text_get_field (fontname, field_num); if (!field) return list; temp_list = list; prev_list = NULL; while (temp_list) { cmp = strcmp (field, temp_list->data); if (cmp == 0) { free (field); return list; } else if (cmp < 0) { new_list = alloc_list (); new_list->data = field; new_list->next = temp_list; if (prev_list) { prev_list->next = new_list; return list; } else return new_list; } else { prev_list = temp_list; temp_list = temp_list->next; } } new_list = alloc_list (); new_list->data = field; new_list->next = NULL; if (prev_list) { prev_list->next = new_list; return list; } else return new_list; } static char* text_get_field (char *fontname, int field_num) { char *t1, *t2; char *field; /* we assume this is a valid fontname...that is, it has 14 fields */ t1 = fontname; while (*t1 && (field_num >= 0)) if (*t1++ == '-') field_num--; t2 = t1; while (*t2 && (*t2 != '-')) t2++; if (t1 != t2) { field = g_malloc (1 + (long) t2 - (long) t1); strncpy (field, t1, (long) t2 - (long) t1); field[(long) t2 - (long) t1] = 0; return field; } return g_strdup ("(nil)"); } static int text_field_to_index (char **table, int ntable, char *field) { int i; for (i = 0; i < ntable; i++) if (strcmp (field, table[i]) == 0) return i; return -1; } static int text_is_xlfd_font_name (char *fontname) { int i; i = 0; while (*fontname) if (*fontname++ == '-') i++; return (i == 14); } static int text_get_xlfd (double size, int size_type, char *foundry, char *family, char *weight, char *slant, char *set_width, char *spacing, char *fontname) { char pixel_size[12], point_size[12]; if (size > 0) { switch (size_type) { case PIXELS: sprintf (pixel_size, "%d", (int) size); sprintf (point_size, "*"); break; case POINTS: sprintf (pixel_size, "*"); sprintf (point_size, "%d", (int) (size * 10)); break; } /* create the fontname */ sprintf (fontname, "-%s-%s-%s-%s-%s-*-%s-%s-75-75-%s-*-*-*", foundry, family, weight, slant, set_width, pixel_size, point_size, spacing); return TRUE; } else return FALSE; } static int text_load_font (TextTool *text_tool) { GdkFont *font; char fontname[2048]; double size; char *size_text; char *foundry_str; char *family_str; char *weight_str; char *slant_str; char *set_width_str; char *spacing_str; size_text = gtk_entry_get_text (GTK_ENTRY (text_tool->size_text)); size = atof (size_text); foundry_str = foundry_array[text_tool->foundry]; if (strcmp (foundry_str, "(nil)") == 0) foundry_str = ""; family_str = font_info[text_tool->font_index]->family; weight_str = weight_array[text_tool->weight]; if (strcmp (weight_str, "(nil)") == 0) weight_str = ""; slant_str = slant_array[text_tool->slant]; if (strcmp (slant_str, "(nil)") == 0) slant_str = ""; set_width_str = set_width_array[text_tool->set_width]; if (strcmp (set_width_str, "(nil)") == 0) set_width_str = ""; spacing_str = spacing_array[text_tool->spacing]; if (strcmp (spacing_str, "(nil)") == 0) spacing_str = ""; if (text_get_xlfd (size, text_tool->size_type, foundry_str, family_str, weight_str, slant_str, set_width_str, spacing_str, fontname)) { font = gdk_font_load (fontname); if (font) { if (text_tool->font) gdk_font_unref (text_tool->font); text_tool->font = font; text_resize_text_widget (text_tool); return TRUE; } } return FALSE; } static void text_init_render (TextTool *text_tool) { GDisplay *gdisp; char fontname[2048]; char *text; int border; char *border_text; double size; char *size_text; char *foundry_str; char *family_str; char *weight_str; char *slant_str; char *set_width_str; char *spacing_str; size_text = gtk_entry_get_text (GTK_ENTRY (text_tool->size_text)); size = atof (size_text); if (text_tool->antialias) size *= SUPERSAMPLE; foundry_str = foundry_array[text_tool->foundry]; if (strcmp (foundry_str, "(nil)") == 0) foundry_str = ""; family_str = font_info[text_tool->font_index]->family; weight_str = weight_array[text_tool->weight]; if (strcmp (weight_str, "(nil)") == 0) weight_str = ""; slant_str = slant_array[text_tool->slant]; if (strcmp (slant_str, "(nil)") == 0) slant_str = ""; set_width_str = set_width_array[text_tool->set_width]; if (strcmp (set_width_str, "(nil)") == 0) set_width_str = ""; spacing_str = spacing_array[text_tool->spacing]; if (strcmp (spacing_str, "(nil)") == 0) spacing_str = ""; if (text_get_xlfd (size, text_tool->size_type, foundry_str, family_str, weight_str, slant_str, set_width_str, spacing_str, fontname)) { /* get the text */ text = gtk_entry_get_text (GTK_ENTRY (text_tool->the_text)); border_text = gtk_entry_get_text (GTK_ENTRY (text_tool->border_text)); border = atoi (border_text); gdisp = (GDisplay *) text_tool->gdisp_ptr; text_render (gdisp->gimage, gimage_active_drawable (gdisp->gimage), text_tool->click_x, text_tool->click_y, fontname, text, border, text_tool->antialias); gdisplays_flush (); } } static void text_gdk_image_to_region (GdkImage *image, int scale, PixelRegion *textPR) { int black_pixel; int pixel; int value; int scalex, scaley; int scale2; int x, y; int i, j; unsigned char * data; scale2 = scale * scale; black_pixel = BlackPixel (DISPLAY, DefaultScreen (DISPLAY)); data = textPR->data; for (y = 0, scaley = 0; y < textPR->h; y++, scaley += scale) { for (x = 0, scalex = 0; x < textPR->w; x++, scalex += scale) { value = 0; for (i = scaley; i < scaley + scale; i++) for (j = scalex; j < scalex + scale; j++) { pixel = gdk_image_get_pixel (image, j, i); if (pixel == black_pixel) value += 255; } value = value / scale2; /* store the alpha value in the data */ *data++ = (unsigned char) value; } } } static Layer * text_render (GImage *gimage, int drawable_id, int text_x, int text_y, char *fontname, char *text, int border, int antialias) { GdkFont *font; GdkPixmap *pixmap; GdkImage *image; GdkGC *gc; GdkColor black, white; Layer *layer; TileManager *mask, *newmask; PixelRegion textPR, maskPR; int layer_type; unsigned char color[MAX_CHANNELS]; char *str; int nstrs; int crop; int line_width, line_height; int pixmap_width, pixmap_height; int text_width, text_height; int width, height; int x, y, k; void * pr; /* determine the layer type */ if (drawable_id != -1) layer_type = drawable_type_with_alpha (drawable_id); else layer_type = gimage_base_type_with_alpha (gimage); /* scale the text based on the antialiasing amount */ if (antialias) antialias = SUPERSAMPLE; else antialias = 1; /* Dont crop the text if border is negative */ crop = (border >= 0); if (!crop) border = 0; /* load the font in */ font = gdk_font_load (fontname); if (!font) return NULL; /* determine the bounding box of the text */ width = -1; height = 0; line_height = font->ascent + font->descent; nstrs = 0; str = strtok (text, "\n"); while (str) { nstrs += 1; /* gdk_string_measure will give the correct width of the * string. However, we'll add a little "fudge" factor just * to be sure. */ line_width = gdk_string_measure (font, str) + 5; if (line_width > width) width = line_width; height += line_height; str = strtok (NULL, "\n"); } /* We limit the largest pixmap we create to approximately 200x200. * This is approximate since it depends on the amount of antialiasing. * Basically, we want the width and height to be divisible by the antialiasing * amount. (Which lies in the range 1-10). * This avoids problems on some X-servers (Xinside) which have problems * with large pixmaps. (Specifically pixmaps which are larger - width * or height - than the screen). */ pixmap_width = TILE_WIDTH * antialias; pixmap_height = TILE_HEIGHT * antialias; /* determine the actual text size based on the amount of antialiasing */ text_width = width / antialias; text_height = height / antialias; /* create the pixmap of depth 1 */ pixmap = gdk_pixmap_new (NULL, pixmap_width, pixmap_height, 1); /* create the gc */ gc = gdk_gc_new (pixmap); gdk_gc_set_font (gc, font); /* get black and white pixels for this gdisplay */ black.pixel = BlackPixel (DISPLAY, DefaultScreen (DISPLAY)); white.pixel = WhitePixel (DISPLAY, DefaultScreen (DISPLAY)); /* Render the text into the pixmap. * Since the pixmap may not fully bound the text (because we limit its size) * we must tile it around the texts actual bounding box. */ mask = tile_manager_new (text_width, text_height, 1); pixel_region_init (&maskPR, mask, 0, 0, text_width, text_height, TRUE); for (pr = pixel_regions_register (1, &maskPR); pr != NULL; pr = pixel_regions_process (pr)) { /* erase the pixmap */ gdk_gc_set_foreground (gc, &white); gdk_draw_rectangle (pixmap, gc, 1, 0, 0, pixmap_width, pixmap_height); gdk_gc_set_foreground (gc, &black); /* adjust the x and y values */ x = -maskPR.x * antialias; y = font->ascent - maskPR.y * antialias; str = text; for (k = 0; k < nstrs; k++) { gdk_draw_string (pixmap, font, gc, x, y, str); str += strlen (str) + 1; y += line_height; } /* create the GdkImage */ image = gdk_image_get (pixmap, 0, 0, pixmap_width, pixmap_height); if (!image) fatal_error ("sanity check failed: could not get gdk image"); if (image->depth != 1) fatal_error ("sanity check failed: image should have 1 bit per pixel"); /* convert the GdkImage bitmap to a region */ text_gdk_image_to_region (image, antialias, &maskPR); /* free the image */ gdk_image_destroy (image); } /* Crop the mask buffer */ newmask = crop ? crop_buffer (mask, border) : mask; if (newmask != mask) tile_manager_destroy (mask); if (newmask && (layer = layer_new (gimage->ID, newmask->levels[0].width, newmask->levels[0].height, layer_type, "Text Layer", OPAQUE, NORMAL_MODE))) { /* color the layer buffer */ gimage_get_foreground (gimage, drawable_id, color); color[layer->bytes - 1] = OPAQUE; pixel_region_init (&textPR, layer->tiles, 0, 0, layer->width, layer->height, TRUE); color_region (&textPR, color); /* apply the text mask */ pixel_region_init (&textPR, layer->tiles, 0, 0, layer->width, layer->height, TRUE); pixel_region_init (&maskPR, newmask, 0, 0, layer->width, layer->height, FALSE); apply_mask_to_region (&textPR, &maskPR, OPAQUE); /* Start a group undo */ undo_push_group_start (gimage, EDIT_PASTE_UNDO); /* Set the layer offsets */ layer->offset_x = text_x; layer->offset_y = text_y; /* If there is a selection mask clear it-- * this might not always be desired, but in general, * it seems like the correct behavior. */ if (! gimage_mask_is_empty (gimage)) channel_clear (gimage_get_mask (gimage)); /* If the drawable id is invalid, create a new layer */ if (drawable_id == -1) gimage_add_layer (gimage, layer, -1); /* Otherwise, instantiate the text as the new floating selection */ else floating_sel_attach (layer, drawable_id); /* end the group undo */ undo_push_group_end (gimage); tile_manager_destroy (newmask); } else { if (newmask) warning("text_render: could not allocate image"); layer = NULL; } /* free the pixmap */ gdk_pixmap_unref (pixmap); /* free the gc */ gdk_gc_destroy (gc); /* free the font */ gdk_font_unref (font); return layer; } static int text_get_extents (char *fontname, char *text, int *width, int *height, int *ascent, int *descent) { GdkFont *font; char *str; int nstrs; int line_width, line_height; /* load the font in */ font = gdk_font_load (fontname); if (!font) return FALSE; /* determine the bounding box of the text */ *width = -1; *height = 0; *ascent = font->ascent; *descent = font->descent; line_height = *ascent + *descent; nstrs = 0; str = strtok (text, "\n"); while (str) { nstrs += 1; /* gdk_string_measure will give the correct width of the * string. However, we'll add a little "fudge" factor just * to be sure. */ line_width = gdk_string_measure (font, str) + 5; if (line_width > *width) *width = line_width; *height += line_height; str = strtok (NULL, "\n"); } if (*width < 0) return FALSE; else return TRUE; } /* The text_tool procedure definition */ ProcArg text_tool_args[] = { { PDB_IMAGE, "image", "The image" }, { PDB_DRAWABLE, "drawable", "The affected drawable: (-1 for a new text layer)" }, { PDB_FLOAT, "x", "the x coordinate for the left side of text bounding box" }, { PDB_FLOAT, "y", "the y coordinate for the top of text bounding box" }, { PDB_STRING, "text", "the text to generate" }, { PDB_INT32, "border", "the size of the border: border >= 0" }, { PDB_INT32, "antialias", "generate antialiased text" }, { PDB_FLOAT, "size", "the size of text in either pixels or points" }, { PDB_INT32, "size_type", "the units of the specified size: { PIXELS (0), POINTS (1) }" }, { PDB_STRING, "foundry", "the font foundry, \"*\" for any" }, { PDB_STRING, "family", "the font family, \"*\" for any" }, { PDB_STRING, "weight", "the font weight, \"*\" for any" }, { PDB_STRING, "slant", "the font slant, \"*\" for any" }, { PDB_STRING, "set_width", "the font set-width parameter, \"*\" for any" }, { PDB_STRING, "spacing", "the font spacing, \"*\" for any" } }; ProcArg text_tool_out_args[] = { { PDB_LAYER, "text_layer", "the new text layer" } }; ProcRecord text_tool_proc = { "gimp_text", "Add text at the specified location as a floating selection or a new layer.", "This tool requires font information in the form of seven parameters: {size, foundry, family, weight, slant, set_width, spacing}. The font size can either be specified in units of pixels or points, and the appropriate metric is specified using the size_type " "argument. The x and y parameters together control the placement of the new text by specifying the upper left corner of the text bounding box. If the antialias parameter is non-zero, the generated text will blend more smoothly with underlying layers. " "This option requires more time and memory to compute than non-antialiased text; the resulting floating selection or layer, however, will require the same amount of memory with or without antialiasing. If the specified drawable parameter is valid, the " "text will be created as a floating selection attached to the drawable. If the drawable parameter is not valid (-1), the text will appear as a new layer. Finally, a border can be specified around the final rendered text. The border is measured in pixels.", "Spencer Kimball & Peter Mattis", "Spencer Kimball & Peter Mattis", "1995-1996", PDB_INTERNAL, /* Input arguments */ 15, text_tool_args, /* Output arguments */ 1, text_tool_out_args, /* Exec method */ { { text_tool_invoker } }, }; /**********************/ /* TEXT_GET_EXTENTS */ ProcArg text_tool_get_extents_args[] = { { PDB_STRING, "text", "the text to generate" }, { PDB_FLOAT, "size", "the size of text in either pixels or points" }, { PDB_INT32, "size_type", "the units of the specified size: { PIXELS (0), POINTS (1) }" }, { PDB_STRING, "foundry", "the font foundry, \"*\" for any" }, { PDB_STRING, "family", "the font family, \"*\" for any" }, { PDB_STRING, "weight", "the font weight, \"*\" for any" }, { PDB_STRING, "slant", "the font slant, \"*\" for any" }, { PDB_STRING, "set_width", "the font set-width parameter, \"*\" for any" }, { PDB_STRING, "spacing", "the font spacing, \"*\" for any" } }; ProcArg text_tool_get_extents_out_args[] = { { PDB_INT32, "width", "the width of the specified text" }, { PDB_INT32, "height", "the height of the specified text" }, { PDB_INT32, "ascent", "the ascent of the specified font" }, { PDB_INT32, "descent", "the descent of the specified font" } }; ProcRecord text_tool_get_extents_proc = { "gimp_text_get_extents", "Get extents of the bounding box for the specified text", "This tool returns the width and height of a bounding box for the specified text string with the specified font information. Ascent and descent for the specified font are returned as well.", "Spencer Kimball & Peter Mattis", "Spencer Kimball & Peter Mattis", "1995-1996", PDB_INTERNAL, /* Input arguments */ 9, text_tool_get_extents_args, /* Output arguments */ 4, text_tool_get_extents_out_args, /* Exec method */ { { text_tool_get_extents_invoker } }, }; static Argument * text_tool_invoker (Argument *args) { int success = TRUE; GImage *gimage; Layer *text_layer; int drawable_id; double x, y; char *text; int border; int antialias; double size; int size_type; char *foundry; char *family; char *weight; char *slant; char *set_width; char *spacing; int int_value; double fp_value; char fontname[2048]; Argument *return_args; text_layer = NULL; drawable_id = -1; x = 0; y = 0; text = NULL; border = FALSE; antialias = FALSE; size = 0; size_type = PIXELS; foundry = NULL; family = NULL; weight = NULL; slant = NULL; set_width = NULL; spacing = NULL; /* the gimage */ if (success) { int_value = args[0].value.pdb_int; if (! (gimage = gimage_get_ID (int_value))) success = FALSE; } /* the drawable */ if (success) { int_value = args[1].value.pdb_int; if (gimage == drawable_gimage (int_value)) drawable_id = int_value; else if (int_value == -1) drawable_id = -1; else success = FALSE; } /* x, y coordinates */ if (success) { x = args[2].value.pdb_float; y = args[3].value.pdb_float; } /* text */ if (success) text = (char *) args[4].value.pdb_pointer; /* border */ if (success) { int_value = args[5].value.pdb_int; if (int_value >= -1) border = int_value; else success = FALSE; } /* antialias */ if (success) { int_value = args[6].value.pdb_int; antialias = (int_value) ? TRUE : FALSE; } /* size */ if (success) { fp_value = args[7].value.pdb_float; if (fp_value > 0) size = fp_value; else success = FALSE; } /* size type */ if (success) { int_value = args[8].value.pdb_int; switch (int_value) { case 0: size_type = PIXELS; break; case 1: size_type = POINTS; break; default: success = FALSE; } } /* foundry, family, weight, slant, set_width, spacing */ if (success) { foundry = (char *) args[9].value.pdb_pointer; family = (char *) args[10].value.pdb_pointer; weight = (char *) args[11].value.pdb_pointer; slant = (char *) args[12].value.pdb_pointer; set_width = (char *) args[13].value.pdb_pointer; spacing = (char *) args[14].value.pdb_pointer; } /* increase the size by SUPERSAMPLE if we're antialiasing */ if (antialias) size *= SUPERSAMPLE; /* attempt to get the xlfd for the font */ if (success) success = text_get_xlfd (size, size_type, foundry, family, weight, slant, set_width, spacing, fontname); /* call the text render procedure */ if (success) success = ((text_layer = text_render (gimage, drawable_id, x, y, fontname, text, border, antialias)) != NULL); return_args = procedural_db_return_args (&text_tool_proc, success); if (success) return_args[1].value.pdb_int = text_layer->ID; return return_args; } static Argument * text_tool_get_extents_invoker (Argument *args) { int success = TRUE; char *text; double size; int size_type; char *foundry; char *family; char *weight; char *slant; char *set_width; char *spacing; int width, height; int ascent, descent; int int_value; double fp_value; char fontname[2048]; Argument *return_args; size = 0.0; size_type = PIXELS; /* text */ if (success) text = (char *) args[0].value.pdb_pointer; /* size */ if (success) { fp_value = args[1].value.pdb_float; if (fp_value > 0) size = fp_value; else success = FALSE; } /* size type */ if (success) { int_value = args[2].value.pdb_int; switch (int_value) { case 0: size_type = PIXELS; break; case 1: size_type = POINTS; break; default: success = FALSE; } } /* foundry, family, weight, slant, set_width, spacing */ if (success) { foundry = (char *) args[3].value.pdb_pointer; family = (char *) args[4].value.pdb_pointer; weight = (char *) args[5].value.pdb_pointer; slant = (char *) args[6].value.pdb_pointer; set_width = (char *) args[7].value.pdb_pointer; spacing = (char *) args[8].value.pdb_pointer; } /* attempt to get the xlfd for the font */ if (success) success = text_get_xlfd (size, size_type, foundry, family, weight, slant, set_width, spacing, fontname); /* call the text render procedure */ if (success) success = text_get_extents (fontname, text, &width, &height, &ascent, &descent); return_args = procedural_db_return_args (&text_tool_get_extents_proc, success); if (success) { return_args[1].value.pdb_int = width; return_args[2].value.pdb_int = height; return_args[3].value.pdb_int = ascent; return_args[4].value.pdb_int = descent; } return return_args; }