diff options
Diffstat (limited to 'riscos/gui/button_bar.c')
| -rw-r--r-- | riscos/gui/button_bar.c | 1229 |
1 files changed, 0 insertions, 1229 deletions
diff --git a/riscos/gui/button_bar.c b/riscos/gui/button_bar.c deleted file mode 100644 index 6ecd7cffa..000000000 --- a/riscos/gui/button_bar.c +++ /dev/null @@ -1,1229 +0,0 @@ -/* - * Copyright 2004, 2005 Richard Wilson <info@tinct.net> - * Copyright 2011 Stephen Fryatt <stevef@netsurf-browser.org> - * - * This file is part of NetSurf, http://www.netsurf-browser.org/ - * - * NetSurf 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; version 2 of the License. - * - * NetSurf 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, see <http://www.gnu.org/licenses/>. - */ - -/** \file - * Button bars (implementation). - */ - -#include <assert.h> -#include <stdio.h> -#include <stdbool.h> -#include <stdlib.h> -#include <string.h> -#include <oslib/dragasprite.h> -#include <oslib/os.h> -#include <oslib/osspriteop.h> -#include <oslib/wimp.h> -#include <oslib/wimpspriteop.h> - -#include "utils/log.h" - -#include "riscos/gui/button_bar.h" -#include "riscos/gui.h" -#include "riscos/mouse.h" -#include "riscos/theme.h" -#include "riscos/wimp.h" - -#define BUTTONBAR_SPRITE_NAME_LENGTH 12 -#define BUTTONBAR_VALIDATION_LENGTH 40 - -struct button_bar_button { - wimp_i icon; - bool shaded; - bool separator; - - button_bar_action select_action; - button_bar_action adjust_action; - - int x_pos, y_pos; - int x_size, y_size; - - char sprite[BUTTONBAR_SPRITE_NAME_LENGTH]; - char validation[BUTTONBAR_VALIDATION_LENGTH]; - char opt_key; - const char *help_suffix; - - struct button_bar_button *bar_next; - struct button_bar_button *next; -}; - - -struct button_bar { - /** The applied theme (or NULL to use the default) */ - struct theme_descriptor *theme; - - /** The widget dimensions. */ - int x_min, y_min; - int separator_width; - int vertical_offset; - - bool separators; - - /** The window details and bar position. */ - wimp_w window; - os_box extent; - osspriteop_area *sprites; - int background; - - bool hidden; - - bool edit; - struct button_bar *edit_target; - struct button_bar *edit_source; - void (*edit_refresh)(void *); - void *edit_client_data; - - /** The list of all the defined buttons. */ - - struct button_bar_button *buttons; - - /** The list of the buttons in the current bar. */ - - struct button_bar_button *bar; -}; - -static char null_text_string[] = ""; -static char separator_name[] = "separator"; - -static struct button_bar *drag_start = NULL; -static char drag_opt = '\0'; -static bool drag_separator = false; - -/* - * Private function prototypes. - */ - -static bool ro_gui_button_bar_place_buttons(struct button_bar *button_bar); -static bool ro_gui_button_bar_icon_update(struct button_bar *button_bar); -static bool ro_gui_button_bar_icon_resize(struct button_bar *button_bar); -static void ro_gui_button_bar_drag_end(wimp_dragged *drag, void *data); -static void ro_gui_button_bar_sync_editors(struct button_bar *target, - struct button_bar *source); -static struct button_bar_button *ro_gui_button_bar_find_icon( - struct button_bar *button_bar, wimp_i icon); -static struct button_bar_button *ro_gui_button_bar_find_opt_key( - struct button_bar *button_bar, char opt_key); -static struct button_bar_button *ro_gui_button_bar_find_action( - struct button_bar *button_bar, button_bar_action action); -static struct button_bar_button *ro_gui_button_bar_find_coords( - struct button_bar *button_bar, os_coord pos, - bool *separator, bool *right); - -/* This is an exported interface documented in button_bar.h */ - -struct button_bar *ro_gui_button_bar_create(struct theme_descriptor *theme, - const struct button_bar_buttons buttons[]) -{ - struct button_bar *button_bar; - struct button_bar_button *icon, *new_icon; - int def; - - /* Allocate memory. */ - - button_bar = malloc(sizeof(struct button_bar)); - if (button_bar == NULL) { - LOG("No memory for malloc()"); - return NULL; - } - - /* Set up default parameters. */ - - button_bar->theme = theme; - button_bar->sprites = ro_gui_theme_get_sprites(theme); - button_bar->background = wimp_COLOUR_VERY_LIGHT_GREY; - - button_bar->x_min = -1; - button_bar->y_min = -1; - button_bar->separator_width = 0; - button_bar->vertical_offset = 0; - - button_bar->separators = false; - - button_bar->window = NULL; - - button_bar->hidden = false; - - button_bar->edit = false; - button_bar->edit_target = NULL; - button_bar->edit_source = NULL; - button_bar->edit_refresh = NULL; - button_bar->edit_client_data = NULL; - - button_bar->buttons = NULL; - - /* Process the button icon definitions */ - - icon = NULL; - - for (def = 0; buttons[def].icon != NULL; def++) { - new_icon = malloc(sizeof(struct button_bar_button)); - if (new_icon == NULL) { - break; - } - - if (icon == NULL) { - button_bar->buttons = new_icon; - button_bar->bar = new_icon; - } else { - icon->next = new_icon; - icon->bar_next = new_icon; - } - icon = new_icon; - icon->next = NULL; - icon->bar_next = NULL; - - strncpy(icon->sprite, buttons[def].icon, - BUTTONBAR_SPRITE_NAME_LENGTH); - snprintf(icon->validation, BUTTONBAR_VALIDATION_LENGTH, - "R5;S%s,p%s", icon->sprite, icon->sprite); - - icon->icon = -1; - icon->shaded = false; - icon->separator = false; - - icon->select_action = buttons[def].select; - icon->adjust_action = buttons[def].adjust; - icon->opt_key = buttons[def].opt_key; - icon->help_suffix = buttons[def].help; - } - - /* Add a separator after the last entry. This will be lost if the - * buttons are subsequently set, but is used for the edit source bar. - */ - - if (icon != NULL) - icon->separator = true; - - return button_bar; -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_link_editor(struct button_bar *target, - struct button_bar *source, void (* refresh)(void *), - void *client_data) -{ - if (target == NULL || source == NULL || - target->edit_target != NULL || - target->edit_source != NULL || - source->edit_target != NULL || - source->edit_source != NULL) - return false; - - target->edit_source = source; - source->edit_target = target; - - /* Store the callback data in the editor bar. */ - - source->edit_refresh = refresh; - source->edit_client_data = client_data; - - return true; -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_rebuild(struct button_bar *button_bar, - struct theme_descriptor *theme, theme_style style, - wimp_w window, bool edit) -{ - struct button_bar_button *button; - int height; - - - if (button_bar == NULL) - return false; - - button_bar->theme = theme; - button_bar->window = window; - button_bar->sprites = ro_gui_theme_get_sprites(theme); - button_bar->background = ro_gui_theme_get_style_element(theme, style, - THEME_ELEMENT_BACKGROUND); - - button_bar->edit = edit; - - height = 0; - button_bar->separator_width = 16; - ro_gui_wimp_get_sprite_dimensions(button_bar->sprites, separator_name, - &button_bar->separator_width, &height); - - /* If the separator height is 0, then either the sprite really is - * zero pixels high or the default was used as no sprite was found. - * Either way, we don't have a separator. - */ - - button_bar->separators = (height == 0) ? false : true; - - button = button_bar->buttons; - - while (button != NULL) { - button->x_size = 0; - button->y_size = 0; - button->icon = -1; - - ro_gui_wimp_get_sprite_dimensions(button_bar->sprites, - button->sprite, - &button->x_size, &button->y_size); - - button = button->next; - } - - if (!ro_gui_button_bar_place_buttons(button_bar)) - return false; - - if (button_bar->edit && button_bar->edit_target != NULL) - ro_gui_button_bar_sync_editors(button_bar->edit_target, - button_bar); - - return ro_gui_button_bar_icon_update(button_bar); -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_arrange_buttons(struct button_bar *button_bar, - char order[]) -{ - struct button_bar_button *button, *new; - int i; - - if (button_bar == NULL || order == NULL) - return false; - - /* Delete any existing button arrangement. */ - - button_bar->bar = NULL; - - for (button = button_bar->buttons; button != NULL; - button = button->next) { - button->bar_next = NULL; - button->separator = false; - } - - /* Parse the config string and link up the new buttons. */ - - button = NULL; - - for (i = 0; order[i] != '\0'; i++) { - if (order[i] != '|') { - new = ro_gui_button_bar_find_opt_key(button_bar, - order[i]); - - if (new != NULL) { - if (button == NULL) - button_bar->bar = new; - else - button->bar_next = new; - - button = new; - } - } else { - if (button != NULL) - button->separator = true; - } - } - - if (!ro_gui_button_bar_place_buttons(button_bar)) - return false; - - return ro_gui_button_bar_place_buttons(button_bar); -} - -/** - * Place the buttons on a button bar, taking into account the button arrangement - * and the current theme, and update the bar extent details. - * - * \param *button_bar The button bar to update. - * \return true if successful; else false. - */ - -bool ro_gui_button_bar_place_buttons(struct button_bar *button_bar) -{ - struct button_bar_button *button; - int x_pos, y_pos, height; - - if (button_bar == NULL) - return false; - - button = button_bar->bar; - x_pos = 0; - y_pos = 0; - height = 0; - - while (button != NULL) { - button->x_pos = x_pos; - button->y_pos = y_pos; - - x_pos += button->x_size; - if (button->separator) - x_pos += button_bar->separator_width; - - if (button->y_size > height) - height = button->y_size; - - button = button->bar_next; - } - - button_bar->x_min = x_pos; - button_bar->y_min = height; - - return true; -} - - -/* This is an exported interface documented in button_bar.h */ - -void ro_gui_button_bar_destroy(struct button_bar *button_bar) -{ - struct button_bar_button *button; - - if (button_bar == NULL) - return; - - /* Free the button definitions. */ - - while (button_bar->buttons != NULL) { - button = button_bar->buttons; - button_bar->buttons = button->next; - free(button); - } - - free(button_bar); -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_get_dims(struct button_bar *button_bar, - int *width, int *height) -{ - if (button_bar == NULL) - return false; - - if (button_bar->x_min != -1 && button_bar->y_min != -1) { - if (width != NULL) - *width = button_bar->x_min; - if (height != NULL) - *height = button_bar->y_min; - - return true; - } - - return false; -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_set_extent(struct button_bar *button_bar, - int x0, int y0, int x1, int y1) -{ - if (button_bar == NULL) - return false; - - if ((x1 - x0) < button_bar->x_min || (y1 - y0) < button_bar->y_min) - return false; - - if (button_bar->extent.x0 == x0 && button_bar->extent.y0 == y0 && - button_bar->extent.x1 == x1 && - button_bar->extent.y1 == y1) - return true; - - /* Redraw the relevant bits of the toolbar. We can't optimise for - * stretching the X-extent, as this probably means the button - * arrangement has changed which necessitates a full redraw anyway. - */ - - if (button_bar->window != NULL) { - xwimp_force_redraw(button_bar->window, - button_bar->extent.x0, button_bar->extent.y0, - button_bar->extent.x1, button_bar->extent.y1); - xwimp_force_redraw(button_bar->window, x0, y0, x1, y1); - } - - button_bar->extent.x0 = x0; - button_bar->extent.y0 = y0; - button_bar->extent.x1 = x1; - button_bar->extent.y1 = y1; - - if ((y1 - y0) > button_bar->y_min) - button_bar->vertical_offset = - ((y1 - y0) - button_bar->y_min) / 2; - else - button_bar->vertical_offset = 0; - - return ro_gui_button_bar_icon_resize(button_bar); -} - - -/** - * Update the icons on a button bar, creating or deleting them from the window - * as necessary. - */ - -bool ro_gui_button_bar_icon_update(struct button_bar *button_bar) -{ - wimp_icon_create icon; - struct button_bar_button *button, *b; - os_error *error; - - - if (button_bar == NULL || button_bar->window == NULL) - return (button_bar == NULL) ? false : true; - - button = button_bar->buttons; - - while (button != NULL) { - bool on_bar = false; - - /* Check if the icon is currently on the bar. */ - - for (b = button_bar->bar; b != NULL; b = b->bar_next) { - if (b == button) { - on_bar = true; - break; - } - } - - if (on_bar && !button_bar->hidden && button->icon == -1) { - icon.w = button_bar->window; - icon.icon.extent.x0 = 0; - icon.icon.extent.y0 = 0; - icon.icon.extent.x1 = 0; - icon.icon.extent.y1 = 0; - icon.icon.flags = wimp_ICON_TEXT | wimp_ICON_SPRITE | - wimp_ICON_INDIRECTED | - wimp_ICON_HCENTRED | - wimp_ICON_VCENTRED | - (button_bar->background - << wimp_ICON_BG_COLOUR_SHIFT); - icon.icon.data.indirected_text.size = 1; - - /* We don't actually shade buttons unless there's no - * editor active or this is the source bar. - */ - - if (button->shaded && (!button_bar->edit || - button_bar->edit_target != NULL)) - icon.icon.flags |= wimp_ICON_SHADED; - - if (button_bar->edit) - icon.icon.flags |= (wimp_BUTTON_CLICK_DRAG << - wimp_ICON_BUTTON_TYPE_SHIFT); - else - icon.icon.flags |= (wimp_BUTTON_CLICK << - wimp_ICON_BUTTON_TYPE_SHIFT); - - icon.icon.data.indirected_text.text = null_text_string; - icon.icon.data.indirected_text.validation = - button->validation; - - error = xwimp_create_icon(&icon, &button->icon); - if (error) { - LOG("xwimp_create_icon: 0x%x: %s", error->errnum, error->errmess); - ro_warn_user("WimpError", error->errmess); - button->icon = -1; - return false; - } - } else if ((!on_bar || button_bar->hidden) - && button->icon != -1) { - error = xwimp_delete_icon(button_bar->window, - button->icon); - if (error != NULL) { - LOG("xwimp_delete_icon: 0x%x: %s", error->errnum, error->errmess); - ro_warn_user("WimpError", error->errmess); - return false; - } - - button->icon = -1; - } - - button = button->next; - } - - return ro_gui_button_bar_icon_resize(button_bar); -} - - -/** - * Position the icons in the button bar to take account of the currently - * configured extent. - * - * \param *button_bar The button bar to update. - * \return true if successful; else false. - */ - -bool ro_gui_button_bar_icon_resize(struct button_bar *button_bar) -{ - os_error *error; - struct button_bar_button *button; - - if (button_bar == NULL || button_bar->hidden) - return (button_bar == NULL) ? false : true; - - /* Reposition all the icons. */ - - button = button_bar->bar; - - while (button != NULL) { - if(button->icon != -1) { - error = xwimp_resize_icon(button_bar->window, - button->icon, - button_bar->extent.x0 + button->x_pos, - button_bar->extent.y0 + - button_bar->vertical_offset + - button->y_pos, - button_bar->extent.x0 + button->x_pos + - button->x_size, - button_bar->extent.y0 + - button_bar->vertical_offset + - button->y_pos + - button->y_size); - if (error != NULL) { - LOG("xwimp_resize_icon: 0x%x: %s", error->errnum, error->errmess); - ro_warn_user("WimpError", error->errmess); - button->icon = -1; - return false; - } - } - - button = button->bar_next; - } - - return true; -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_hide(struct button_bar *button_bar, bool hide) -{ - if (button_bar == NULL || button_bar->hidden == hide) - return (button_bar == NULL) ? false : true; - - button_bar->hidden = hide; - - return ro_gui_button_bar_icon_update(button_bar); -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_shade_button(struct button_bar *button_bar, - button_bar_action action, bool shaded) -{ - struct button_bar_button *button; - - if (button_bar == NULL) - return false; - - button = ro_gui_button_bar_find_action(button_bar, action); - if (button == NULL) - return false; - - if (button->shaded == shaded) - return true; - - button->shaded = shaded; - - /* We don't actually shade buttons unless there's no editor active - * or this is the source bar. - */ - - if (button->icon != -1 && - (!button_bar->edit || button_bar->edit_target != NULL)) - ro_gui_set_icon_shaded_state(button_bar->window, button->icon, - shaded); - - return true; -} - - -/* This is an exported interface documented in button_bar.h */ - -void ro_gui_button_bar_redraw(struct button_bar *button_bar, - wimp_draw *redraw) -{ - wimp_icon icon; - struct button_bar_button *button; - - /* Test for a valid button bar, and then check that the redraw box - * coincides with the bar's extent. - */ - - if (button_bar == NULL || button_bar->hidden || - (redraw->clip.x0 - (redraw->box.x0 - redraw->xscroll)) - > button_bar->extent.x1 || - (redraw->clip.y0 - (redraw->box.y1 - redraw->yscroll)) - > button_bar->extent.y1 || - (redraw->clip.x1 - (redraw->box.x0 - redraw->xscroll)) - < button_bar->extent.x0 || - (redraw->clip.y1 - (redraw->box.y1 - redraw->yscroll)) - < button_bar->extent.y0 || - (!button_bar->edit && !button_bar->separators)) - return; - - icon.flags = wimp_ICON_SPRITE | wimp_ICON_INDIRECTED | - wimp_ICON_HCENTRED | wimp_ICON_VCENTRED; - if (button_bar->edit) - icon.flags |= wimp_ICON_BORDER | wimp_COLOUR_DARK_GREY << - wimp_ICON_FG_COLOUR_SHIFT; - if (!button_bar->separators) - icon.flags |= wimp_ICON_FILLED | wimp_COLOUR_LIGHT_GREY << - wimp_ICON_BG_COLOUR_SHIFT; - icon.data.indirected_sprite.id = (osspriteop_id) separator_name; - icon.data.indirected_sprite.area = button_bar->sprites; - icon.data.indirected_sprite.size = 12; - icon.extent.y0 = button_bar->extent.y0 + button_bar->vertical_offset; - icon.extent.y1 = icon.extent.y0 + button_bar->y_min; - - for (button = button_bar->bar; button != NULL; - button = button->bar_next) { - if (button->separator) { - icon.extent.x0 = button_bar->extent.x0 + - button->x_pos + button->x_size; - icon.extent.x1 = icon.extent.x0 + - button_bar->separator_width; - xwimp_plot_icon(&icon); - } - } -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_click(struct button_bar *button_bar, - wimp_pointer *pointer, wimp_window_state *state, - button_bar_action *action) -{ - struct button_bar_button *button; - os_coord pos; - os_box box; - - if (button_bar == NULL || button_bar->hidden) - return false; - - /* Check that the click was within our part of the window. */ - - pos.x = pointer->pos.x - state->visible.x0 + state->xscroll; - pos.y = pointer->pos.y - state->visible.y1 + state->yscroll; - - if (pos.x < button_bar->extent.x0 || pos.x > button_bar->extent.x1 || - pos.y < button_bar->extent.y0 || - pos.y > button_bar->extent.y1) - return false; - - if (button_bar->edit && pointer->buttons == wimp_DRAG_SELECT) { - /* This is an editor click, so we need to check for drags on - * icons (buttons) and work area (separators). - */ - - button = ro_gui_button_bar_find_coords(button_bar, pos, - &drag_separator, NULL); - - if (button != NULL && (!button->shaded || drag_separator || - button_bar->edit_source != NULL)) { - char *sprite; - os_error *error; - - drag_start = button_bar; - drag_opt = button->opt_key; - - if (drag_separator) { - box.x0 = pointer->pos.x - - button_bar->separator_width / 2; - box.x1 = box.x0 + button_bar->separator_width; - sprite = separator_name; - } else { - box.x0 = pointer->pos.x - button->x_size / 2; - box.x1 = box.x0 + button->x_size; - sprite = button->sprite; - } - - box.y0 = pointer->pos.y - button->y_size / 2; - box.y1 = box.y0 + button->y_size; - - error = xdragasprite_start(dragasprite_HPOS_CENTRE | - dragasprite_VPOS_CENTRE | - dragasprite_BOUND_SPRITE | - dragasprite_BOUND_TO_WINDOW | - dragasprite_DROP_SHADOW, - button_bar->sprites, - sprite, &box, NULL); - if (error) - LOG("xdragasprite_start: 0x%x: %s", error->errnum, error->errmess); - - ro_mouse_drag_start(ro_gui_button_bar_drag_end, - NULL, NULL, NULL); - - - return true; - } - - } else if (!button_bar->edit && pointer->i != -1 && - (pointer->buttons == wimp_CLICK_SELECT || - pointer->buttons == wimp_CLICK_ADJUST)) { - /* This isn't an editor click, so we're only interested in - * Select or Adjust clicks that occur on physical icons. - */ - - button = ro_gui_button_bar_find_icon(button_bar, pointer->i); - - if (button != NULL) { - if (action != NULL) { - switch (pointer->buttons) { - case wimp_CLICK_SELECT: - *action = button->select_action; - break; - case wimp_CLICK_ADJUST: - *action = button->adjust_action; - break; - default: - break; - } - } - return true; - } - } - - return false; -} - - -/* This is an exported interface documented in button_bar.h */ - -bool ro_gui_button_bar_help_suffix(struct button_bar *button_bar, wimp_i i, - os_coord *mouse, wimp_window_state *state, - wimp_mouse_state buttons, const char **suffix) -{ - os_coord pos; - struct button_bar_button *button; - - if (button_bar == NULL || button_bar->hidden) - return false; - - /* Check that the click was within our part of the window. */ - - pos.x = mouse->x - state->visible.x0 + state->xscroll; - pos.y = mouse->y - state->visible.y1 + state->yscroll; - - if (pos.x < button_bar->extent.x0 || pos.x > button_bar->extent.x1 || - pos.y < button_bar->extent.y0 || - pos.y > button_bar->extent.y1) - return false; - - /* Look up and return the help suffix assocuated with the button. */ - - button = ro_gui_button_bar_find_icon(button_bar, i); - - if (button != NULL) - *suffix = button->help_suffix; - else - *suffix = ""; - - return true; -} - - -/** - * Terminate a drag event that was initiated by a button bar. - * - * \param *drag The drag event data. - * \param *data NULL data to satisfy callback syntax. - */ - -void ro_gui_button_bar_drag_end(wimp_dragged *drag, void *data) -{ - struct button_bar *drag_end = NULL; - struct button_bar *source = NULL, *target = NULL; - struct button_bar_button *button, *drop, *previous; - bool right, separator; - wimp_window_state state; - wimp_pointer pointer; - os_coord pos; - os_error *error; - - xdragasprite_stop(); - - if (drag_start == NULL) - return; - - /* Sort out the window coordinates of the drag end. */ - - error = xwimp_get_pointer_info(&pointer); - if (error) { - LOG("xwimp_get_pointer_info: 0x%x: %s", error->errnum, error->errmess); - ro_warn_user("WimpError", error->errmess); - return; - } - - assert(pointer.w = drag_start->window); - - state.w = drag_start->window; - error = xwimp_get_window_state(&state); - if (error) { - LOG("xwimp_get_window_state: 0x%x: %s", error->errnum, error->errmess); - ro_warn_user("WimpError", error->errmess); - return; - } - - pos.x = pointer.pos.x - state.visible.x0 + state.xscroll; - pos.y = pointer.pos.y - state.visible.y1 + state.yscroll; - - /* Work out the destination bar, and establish source and target. */ - - if (drag_start->edit_target != NULL) { - source = drag_start; - target = drag_start->edit_target; - if (pos.x >= target->extent.x0 && pos.x <= target->extent.x1 && - pos.y >= target->extent.y0 && - pos.y <= target->extent.y1) - drag_end = target; - } else if (drag_start->edit_source != NULL) { - source = drag_start->edit_source; - target = drag_start; - if (pos.x >= target->extent.x0 && pos.x <= target->extent.x1 && - pos.y >= target->extent.y0 && - pos.y <= target->extent.y1) - drag_end = target; - /* drag_end == source and drag_end == NULL are both equivalent - * as far as the following code are concerned, and we don't need - * to identify either case. */ - } - - button = ro_gui_button_bar_find_opt_key(target, drag_opt); - assert(button != NULL); - - /* The drag finished in the target bar, so find out where. */ - - if (drag_end == target) { - drop = ro_gui_button_bar_find_coords(target, pos, - &separator, &right); - } else { - drop = NULL; - } - - /* If the button is dropped on itself, there's no change and it's - * less messy to get out now. - */ - - if (drag_start == target && drag_end == target && button == drop) { - drag_start = NULL; - return; - } - - /* The drag started in the target bar, so remove the dragged button. */ - - if (drag_start == target) { - if (drag_separator) { - button->separator = false; - } else if (target->bar == button) { - target->bar = button->bar_next; - } else { - for (previous = target->bar; previous != NULL && - previous->bar_next != button; - previous = previous->bar_next); - assert(previous != NULL); - previous->bar_next = button->bar_next; - if (button->separator) // ?? - previous->separator = true; // ?? - } - } - - /* The drag ended in the target bar, so add the dragged button in. */ - - if (drop != NULL) { - if (right) { - if (drag_separator) { - drop->separator = true; - } else { - button->bar_next = drop->bar_next; - drop->bar_next = button; - if (drop->separator && !separator) { - drop->separator = false; - button->separator = true; - } else { - button->separator = false; - } - } - } else if (target->bar == drop && !drag_separator) { - button->separator = false; - button->bar_next = target->bar; - target->bar = button; - } else if (target->bar != drop) { - for (previous = target->bar; previous != NULL && - previous->bar_next != drop; - previous = previous->bar_next); - assert(previous != NULL); - - if (drag_separator) { - previous->separator = true; - } else { - if (separator) { - previous->separator = false; - button->separator = true; - } else { - button->separator = false; - } - button->bar_next = previous->bar_next; - previous->bar_next = button; - } - } - } - - /* Reposition the buttons and force our client to update. */ - - ro_gui_button_bar_place_buttons(target); - ro_gui_button_bar_icon_update(target); - ro_gui_button_bar_sync_editors(target, source); - - xwimp_force_redraw(target->window, - target->extent.x0, target->extent.y0, - target->extent.x1, target->extent.y1); - - if (source->edit_refresh != NULL) - source->edit_refresh(source->edit_client_data); - - drag_start = NULL; -} - - -/** - * Synchronise the shading of a button bar editor source bar with the currently - * defined buttons in its target bar. - * - * \param *target The editor target bar. - * \param *source The editor source bar. - */ - -void ro_gui_button_bar_sync_editors(struct button_bar *target, - struct button_bar *source) -{ - struct button_bar_button *sb, *tb; - - if (source == NULL || target == NULL) - return; - - /* Unshade all of the buttons in the source bar. */ - - for (sb = source->bar; sb != NULL; sb = sb->bar_next) - sb->shaded = false; - - /* Step through the target bar and shade each corresponding - * button in the source. - */ - - for (tb = target->bar; tb != NULL; tb = tb->bar_next) { - sb = ro_gui_button_bar_find_opt_key(source, tb->opt_key); - - if (sb != NULL) - sb->shaded = true; - } - - /* Phyically shade the necessary buttons in the toolbar. */ - - for (sb = source->bar; sb != NULL; sb = sb->bar_next) - if (sb->icon != -1) - ro_gui_set_icon_shaded_state(source->window, sb->icon, - sb->shaded); -} - - -/* This is an exported interface documented in button_bar.h */ - -char *ro_gui_button_bar_get_config(struct button_bar *button_bar) -{ - struct button_bar_button *button; - size_t size; - char *config; - int i; - - if (button_bar == NULL) - return NULL; - - for (size = 1, button = button_bar->bar; button != NULL; - button = button->bar_next) { - size++; - if (button->separator) - size++; - } - - config = malloc(size); - if (config == NULL) { - LOG("No memory for malloc()"); - ro_warn_user("NoMemory", 0); - return NULL; - } - - for (i = 0, button = button_bar->bar; button != NULL; - button = button->bar_next) { - config[i++] = button->opt_key; - if (button->separator) - config[i++] = '|'; - } - - config[i] = '\0'; - - return config; -} - - -/** - * Find a button bar icon definition from an icon handle. - * - * \param *button_bar The button bar to use. - * \param icon The icon handle. - * \return Pointer to the button bar icon, or NULL. - */ - -struct button_bar_button *ro_gui_button_bar_find_icon( - struct button_bar *button_bar, wimp_i icon) -{ - struct button_bar_button *button; - - if (button_bar == NULL || icon == -1) - return NULL; - - button = button_bar->buttons; - - while (button != NULL && button->icon != icon) - button = button->next; - - return button; -} - - -/** - * Find a button bar icon definition from an options key code. - * - * \param *button_bar The button bar to use. - * \param opt_key The option key character code. - * \return Pointer to the button bar icon, or NULL. - */ - -struct button_bar_button *ro_gui_button_bar_find_opt_key( - struct button_bar *button_bar, char opt_key) -{ - struct button_bar_button *button; - - if (button_bar == NULL) - return NULL; - - button = button_bar->buttons; - - while (button != NULL && button->opt_key != opt_key) - button = button->next; - - return button; -} - - -/** - * Find a button bar icon definition from an action code. - * - * \param *button_bar The button bar to use. - * \param action The button action to find. - * \return Pointer to the button bar icon, or NULL. - */ - -struct button_bar_button *ro_gui_button_bar_find_action( - struct button_bar *button_bar, button_bar_action action) -{ - struct button_bar_button *button; - - if (button_bar == NULL) - return NULL; - - button = button_bar->buttons; - - while (button != NULL && - button->select_action != action && - button->adjust_action != action) - button = button->next; - - return button; -} - - -/** - * Find a button bar icon definition from coordinates. - * - * \param *button_bar The button bar to use. - * \param pos The coordinates to find, work area relative. - * \param *separator Returns true if the associated separator was - * matched; else false. - * \param *right Returns true if the coordinates were in the - * right hand side of the target; else false. - * \return Pointer to the button bar icon, or NULL. - */ - -struct button_bar_button *ro_gui_button_bar_find_coords( - struct button_bar *button_bar, os_coord pos, - bool *separator, bool *right) -{ - struct button_bar_button *button; - - if (button_bar == NULL) - return NULL; - - button = button_bar->bar; - - while (button != NULL) { - /* Match button extents. */ - int x0, y0, x1, y1; - - x0 = button_bar->extent.x0 + button->x_pos; - y0 = button_bar->extent.y0 + button->y_pos; - x1 = x0 + button->x_size; - y1 = y0 + button->y_size; - - if (pos.x > x0 && pos.y > y0 && pos.x < x1 && pos.y < y1) { - if (separator != NULL) - *separator = false; - - if (right != NULL) - *right = (pos.x > x0 + button->x_size/2) ? - true : false; - return button; - } - - x0 = x1; - x1 = x0 + button_bar->separator_width; - - /* Match separator extents. */ - - if (pos.x > x0 && pos.y > y0 && pos.x < x1 && pos.y < y1 && - button->separator) { - if (separator != NULL) - *separator = true; - - if (right != NULL) - *right = (x0 + button_bar->separator_width/2) ? - true : false; - return button; - } - - button = button->bar_next; - } - - return NULL; -} - |