guicast/bclistbox.h

   1 #ifndef BCLISTBOX_H
   2 #define BCLISTBOX_H
   3
   4 #include "bcdragwindow.inc"
   5 #include "bclistboxitem.inc"
   6 #include "bcpixmap.inc"
   7 #include "bcscrollbar.h"
   8 #include "bcsubwindow.h"
   9 #include "bctoggle.h"
  10 #include "colors.h"
  11
  12 #define BCPOPUPLISTBOX_W 25
  13 #define BCPOPUPLISTBOX_H 25
  14
  15
  16 #define MIN_COLUMN_WIDTH 10
  17
  18
  19 class BC_ListBoxYScroll : public BC_ScrollBar
  20 {
  21 public:
  22         BC_ListBoxYScroll(BC_ListBox *listbox,
  23                           int total_height,
  24                                           int view_height,
  25                           int position);
  26         ~BC_ListBoxYScroll();
  27         int handle_event();
  28 private:
  29         BC_ListBox *listbox;
  30 };
  31
  32 class BC_ListBoxXScroll : public BC_ScrollBar
  33 {
  34 public:
  35         BC_ListBoxXScroll(BC_ListBox *listbox,
  36                           int total_width,
  37                                           int view_width,
  38                           int position);
  39         ~BC_ListBoxXScroll();
  40         int handle_event();
  41 private:
  42         BC_ListBox *listbox;
  43 };
  44
  45 class BC_ListBoxToggle
  46 {
  47 public:
  48         BC_ListBoxToggle(BC_ListBox *listbox,
  49                 BC_ListBoxItem *item,
  50                 int x,
  51                 int y);
  52
  53         int cursor_motion_event(int *redraw_toggles);
  54         int cursor_leave_event(int *redraw_toggles);
  55         int button_press_event();
  56         int button_release_event(int *redraw_toggles);
  57         void update(BC_ListBoxItem *item, int x, int y, int flash);
  58         void draw(int flash);
  59
  60         BC_ListBox *listbox;
  61         BC_ListBoxItem *item;
  62         int value;
  63         int x;
  64         int y;
  65         int state;
  66         enum
  67         {
  68                 TOGGLE_UP,
  69                 TOGGLE_UPHI,
  70                 TOGGLE_CHECKED,
  71                 TOGGLE_DOWN,
  72                 TOGGLE_CHECKEDHI,
  73 // Button pressed then moved out
  74                 TOGGLE_DOWN_EXIT
  75         };
  76 };
  77
  78
  79 class BC_ListBox : public BC_SubWindow
  80 {
  81 public:
  82         BC_ListBox(int x,
  83                 int y,
  84                 int w,
  85                 int h,
  86                 int display_format,                   // Display text list or icons
  87                 ArrayList<BC_ListBoxItem*> *data = 0, // Each column has an ArrayList of BC_ListBoxItems.
  88                 char **column_titles = 0,             // Titles for columns.  Set to 0 for no titles
  89                 int *column_width = 0,                // width of each column
  90                 int columns = 1,                      // Total columns.  Only 1 in icon mode
  91                 int yposition = 0,                    // Pixel of top of window.
  92                 int is_popup = 0,                     // If this listbox is a popup window with a button
  93                 int selection_mode = LISTBOX_SINGLE,  // Select one item or multiple items
  94                 int icon_position = ICON_LEFT,        // Position of icon relative to text of each item
  95                 int allow_drag = 0);                  // Allow user to drag icons around
  96         virtual ~BC_ListBox();
  97
  98         friend class BC_ListBoxToggle;
  99
 100         int initialize();
 101
 102         int enable();
 103         int disable();
 104
 105 // User event handler for new selections
 106         virtual int selection_changed() { return 0; };
 107 // User event handler for triggering a selection
 108         virtual int handle_event() { return 0; };
 109 // User event handler for a column resize
 110         virtual int column_resize_event() { return 0; };
 111 // Draw background on bg_surface
 112         virtual void draw_background();
 113 // Column sort order.  This must return 1 or BC_ListBox will perform a default
 114 // action.
 115         virtual int sort_order_event() { return 0; };
 116 // Column moved
 117         virtual int move_column_event() { return 0; };
 118
 119
 120 // Get the column movement
 121         int get_from_column();
 122         int get_to_column();
 123
 124 // Get the item in the given column which is the selection_number of the total
 125 // selected rows.  Returns 0 on failure.
 126         BC_ListBoxItem* get_selection(int column, int selection_number);
 127         BC_ListBoxItem* get_selection_recursive(ArrayList<BC_ListBoxItem*> *data,
 128                 int column,
 129                 int selection_number);
 130
 131 // Get the flat index of the item in the given column which is the selection_number
 132 // of the total selected rows.  Returns -1 on failure.  The column
 133 // argument is really useless because it only checks column 1 and returns the row
 134 // number.
 135         int get_selection_number(int column, int selection_number);
 136         int get_selection_number_recursive(ArrayList<BC_ListBoxItem*> *data,
 137                 int column,
 138                 int selection_number,
 139                 int *counter = 0);
 140
 141         virtual int evaluate_query(int list_item, char *string);
 142         void expand_item(BC_ListBoxItem *item, int expand);
 143 // Collapse all items
 144         static void collapse_recursive(ArrayList<BC_ListBoxItem*> *data,
 145                 int master_column);
 146 // Convert recursive pointer to flat index.
 147 // The pointer can be any item in the row corresponding to the index.
 148 // Returns -1 if no item was found.
 149         int item_to_index(ArrayList<BC_ListBoxItem*> *data,
 150                 BC_ListBoxItem *item,
 151                 int *counter = 0);
 152 // Convert flat index and column to desired item.
 153         BC_ListBoxItem* index_to_item(ArrayList<BC_ListBoxItem*> *data,
 154                 int number,
 155                 int column,
 156                 int *counter = 0);
 157 // Get all items with recursion for text mode
 158         static int get_total_items(ArrayList<BC_ListBoxItem*> *data,
 159                 int *result /* = 0 */,
 160                 int master_column);
 161
 162
 163         int focus_out_event();
 164         virtual int button_press_event();
 165         int button_release_event();
 166         int cursor_enter_event();
 167         int cursor_leave_event();
 168         int cursor_motion_event();
 169         virtual int drag_start_event();
 170         virtual int drag_motion_event();
 171         virtual int drag_stop_event();
 172         int deactivate();
 173 // After popping up a menu call this to interrupt the selection process
 174         void deactivate_selection();
 175         int activate();
 176         virtual int keypress_event();
 177         int translation_event();
 178         int repeat_event(int64_t duration);
 179         BC_DragWindow* get_drag_popup();
 180
 181 // change the contents
 182         int update(ArrayList<BC_ListBoxItem*> *data,
 183                                                 char **column_titles,
 184                                                 int *column_widths,
 185                                                 int columns,
 186                                                 int xposition = 0,
 187                                                 int yposition = 0,
 188                                                 int highlighted_number = -1,  // Flat index of item cursor is over
 189                                                 int recalc_positions = 0,     // set all autoplace flags to 1
 190                                                 int draw = 1);
 191         void center_selection();
 192         void update_format(int display_format, int redraw);
 193         int get_format();
 194
 195 // Allow scrolling when dragging items
 196         void set_drag_scroll(int value);
 197 // Allow column repositioning
 198         void set_allow_drag_column(int value);
 199 // Allow automatic moving of objects after drag
 200         void set_process_drag(int value);
 201
 202 // Set the column to use for icons and sublists.
 203         void set_master_column(int value, int redraw);
 204 // Set column to search
 205         void set_search_column(int value);
 206         int set_selection_mode(int mode);
 207         int set_yposition(int position, int draw_items = 1);
 208         int get_yposition();
 209         int set_xposition(int position);
 210         int get_xposition();
 211 // Return the flat index of the highlighted item
 212         int get_highlighted_item();
 213         int get_yscroll_x();
 214         int get_yscroll_y();
 215         int get_yscroll_height();
 216         int get_xscroll_x();
 217         int get_xscroll_y();
 218         int get_xscroll_width();
 219         int get_column_offset(int column);
 220         int get_column_width(int column, int clamp_right = 0);
 221         int get_w();
 222         int get_h();
 223         int get_display_mode();
 224         void set_justify(int value);
 225
 226
 227
 228         enum
 229         {
 230                 SORT_ASCENDING,
 231                 SORT_DESCENDING
 232         };
 233
 234         int get_sort_column();
 235         void set_sort_column(int value, int redraw = 0);
 236         int get_sort_order();
 237         void set_sort_order(int value, int redraw = 0);
 238
 239
 240         void reset_query();
 241         int reposition_window(int x, int y, int w = -1, int h = -1);
 242         BC_Pixmap* get_bg_surface();
 243 // Set all items for autoplacement with recursion into sublists
 244         void set_autoplacement(ArrayList<BC_ListBoxItem*> *data,
 245                 int do_icon,
 246                 int do_text);
 247 // Set selection status on all items with recursion
 248         void set_all_selected(ArrayList<BC_ListBoxItem*> *data, int value);
 249 // Set selection status of single row with recursion
 250 // item_number - the flat index of the row to select
 251         void set_selected(ArrayList<BC_ListBoxItem*> *data,
 252                 int item_number,
 253                 int value,
 254                 int *counter = 0);
 255
 256 // Called by keypress_event for cursor up.  Selects previous and next visible
 257 // row, skipping desired number of visible rows.
 258         int select_previous(int skip,
 259                 BC_ListBoxItem *selected_item = 0,
 260                 int *counter = 0,
 261                 ArrayList<BC_ListBoxItem*> *data = 0,
 262                 int *got_it = 0,
 263                 int *got_second = 0);
 264         int select_next(int skip,
 265                 BC_ListBoxItem *selected_item = 0,
 266                 int *counter = 0,
 267                 ArrayList<BC_ListBoxItem*> *data = 0,
 268                 int *got_it = 0,
 269                 int *got_second = 0);
 270
 271 // Called by cursor_motion_event to select different item if selection_number
 272 // changed.  Returns 1 if redraw is required.
 273         int update_selection(ArrayList<BC_ListBoxItem*> *data,
 274                 int selection_number,
 275                 int *counter = 0);
 276
 277         static void dump(ArrayList<BC_ListBoxItem*> *data,
 278                 int columns,
 279                 int indent /* = 0 */,
 280                 int master_column);
 281
 282
 283
 284
 285
 286 // Draw the list items
 287         int draw_items(int flash);
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297 private:
 298         void delete_columns();
 299         void set_columns(char **column_titles,
 300                 int *column_widths,
 301                 int columns);
 302 // Draw the button for a popup listbox
 303         int draw_button();
 304 // Draw list border
 305         int draw_border(int flash);
 306 // Draw column titles
 307         int draw_titles(int flash);
 308 // Draw expanders
 309         void draw_toggles(int flash);
 310 // Draw selection rectangle
 311         int draw_rectangle(int flash);
 312
 313
 314         void draw_text_recursive(ArrayList<BC_ListBoxItem*> *data,
 315                 int column,
 316                 int indent,
 317                 int *current_toggle);
 318 // Returns 1 if selection changed
 319         int query_list();
 320         void init_column_width();
 321         void reset_cursor(int new_cursor);
 322 // Fix boundary conditions after resize
 323         void column_width_boundaries();
 324 // Recursive function to get the first item selected in text mode.
 325 // Returns > -1 only if it got it.  Always increments *result
 326         int get_first_selection(ArrayList<BC_ListBoxItem*> *data, int *result = 0);
 327 // Recursive function to get the last item selected in text mode.
 328 // Returns > -1 only if it got it.  Always increments *result
 329         int get_last_selection(ArrayList<BC_ListBoxItem*> *data, int *result = 0);
 330 // Called by button_press_event and cursor_motion_event to expand the selection.
 331 // Returns 1 if redraw is required.
 332         int expand_selection(int button_press, int selection_number);
 333 // Called by button_press_event and cursor_motion_event
 334 // to select a range in text mode
 335         void select_range(ArrayList<BC_ListBoxItem*> *data,
 336                 int start,
 337                 int end,
 338                 int *current = 0);
 339 // Called by button_press_event to toggle the selection status of a single item.
 340 // Called for both text and icon mode.  In text mode it's recursive and fills
 341 // the entire row with the first item's value.  Returns 1 when the item was toggled.
 342         int toggle_item_selection(ArrayList<BC_ListBoxItem*> *data,
 343                 int selection_number,
 344                 int *counter = 0);
 345 // Set value of selected in all selected items to new value
 346         void promote_selections(ArrayList<BC_ListBoxItem*> *data,
 347                 int old_value,
 348                 int new_value);
 349
 350
 351         int test_column_divisions(int cursor_x, int cursor_y, int &new_cursor);
 352         int test_column_titles(int cursor_x, int cursor_y);
 353         int test_expanders();
 354
 355         int get_title_h();
 356         int calculate_item_coords();
 357         void calculate_last_coords_recursive(
 358                 ArrayList<BC_ListBoxItem*> *data,
 359                 int *icon_x,
 360                 int *next_icon_x,
 361                 int *next_icon_y,
 362                 int *next_text_y,
 363                 int top_level);
 364         void calculate_item_coords_recursive(
 365                 ArrayList<BC_ListBoxItem*> *data,
 366                 int *icon_x,
 367                 int *next_icon_x,
 368                 int *next_icon_y,
 369                 int *next_text_y,
 370                 int top_level);
 371
 372         int get_items_width();
 373         int get_items_height(ArrayList<BC_ListBoxItem*> *data,
 374                 int columns,
 375                 int *result = 0);
 376         int get_icon_w(BC_ListBoxItem *item);
 377         int get_icon_h(BC_ListBoxItem *item);
 378         int get_item_x(BC_ListBoxItem *item);
 379         int get_item_y(BC_ListBoxItem *item);
 380         int get_item_w(BC_ListBoxItem *item);
 381         int get_item_h(BC_ListBoxItem *item);
 382         int get_item_highlight(ArrayList<BC_ListBoxItem*> *data, int column, int item);
 383         int get_item_color(ArrayList<BC_ListBoxItem*> *data, int column, int item);
 384         int get_icon_mask(BC_ListBoxItem *item, int &x, int &y, int &w, int &h);
 385         int get_text_mask(BC_ListBoxItem *item, int &x, int &y, int &w, int &h);
 386 // Copy sections of the bg_surface to the gui
 387         void clear_listbox(int x, int y, int w, int h);
 388
 389 // Tests for cursor outside boundaries
 390         int test_drag_scroll(int cursor_x, int cursor_y);
 391 // Called by select_scroll_event, rectangle_scroll_event to execute for movement
 392         int drag_scroll_event();
 393         int select_scroll_event();
 394         int rectangle_scroll_event();
 395
 396
 397         void move_vertical(int pixels);
 398         void move_horizontal(int pixels);
 399         void clamp_positions();
 400
 401         int get_scrollbars();
 402         void update_scrollbars();
 403
 404 // Flat index of the item the cursor is over.
 405 // Points *item_return to the first item in the row or 0 if no item was found.
 406 // if it's nonzero.  Returns -1 if no item was found.  Clamps the y coordinate
 407 // only if the current operation is not SELECT, so scrolling is possible.
 408 // expanded - 1 if items in this table should be tested for cursor coverage
 409         int get_cursor_item(ArrayList<BC_ListBoxItem*> *data,
 410                 int cursor_x,
 411                 int cursor_y,
 412                 BC_ListBoxItem **item_return = 0,
 413                 int *counter = 0,
 414                 int expanded = 1);
 415 // Select the items in the rectangle and deselect the items outside of it.
 416 // Returns 1 if redraw is required.
 417         int select_rectangle(ArrayList<BC_ListBoxItem*> *data,
 418                 int x1,
 419                 int y1,
 420                 int x2,
 421                 int y2);
 422 // Convert the row of the item to a pointer.
 423         BC_ListBoxItem* number_to_item(int row);
 424         int reposition_item(ArrayList<BC_ListBoxItem*> *data,
 425                 int selection_number,
 426                 int x,
 427                 int y,
 428                 int *counter = 0);
 429 // Move selected items to src_items
 430         void move_selection(ArrayList<BC_ListBoxItem*> *dst,
 431                 ArrayList<BC_ListBoxItem*> *src);
 432 // Put items from the src table into the data table starting at flat item number
 433 // destination.
 434         int put_selection(ArrayList<BC_ListBoxItem*> *data,
 435                 ArrayList<BC_ListBoxItem*> *src,
 436                 int destination,
 437                 int *counter = 0);
 438
 439         int center_selection(int selection,
 440                 ArrayList<BC_ListBoxItem*> *data = 0,
 441                 int *counter = 0);
 442
 443 // Array of one list of pointers for each column
 444         ArrayList<BC_ListBoxItem*> *data;
 445
 446
 447 // 1 if a button is used to make the listbox display
 448         int is_popup;      // popup
 449
 450
 451 // Dimensions for a popup if there is one
 452         int popup_w, popup_h;
 453 // pixel of top of display relative to top of list
 454         int yposition;
 455 // pixel of left display relative to first column
 456         int xposition;
 457 // dimensions of a row in the list
 458         int row_height, row_ascent, row_descent;
 459
 460
 461
 462
 463
 464         int selection_mode;
 465         int display_format;
 466         int icon_position;
 467 // Scrollbars are created as needed
 468         BC_ListBoxXScroll *xscrollbar;
 469         BC_ListBoxYScroll *yscrollbar;
 470         ArrayList<BC_ListBoxToggle*> expanders;
 471         char query[BCTEXTLEN];
 472
 473
 474 // Window containing the listbox
 475         BC_WindowBase *gui;
 476
 477 // Size of the popup if there is one
 478         char **column_titles;
 479         int *column_width;
 480         int default_column_width[1];
 481         int columns;
 482         int master_column;
 483         int search_column;
 484
 485         int view_h, view_w;
 486         int title_h;
 487 // Maximum width of items.  Calculated by get_items_width
 488         int items_w;
 489         int items_h;
 490 // In BCLISTBOX_SELECT mode determines the value to set items to
 491         int new_value;
 492         int need_xscroll, need_yscroll;
 493 // Move items during drag operation of text items.
 494         int process_drag;
 495         int allow_drag;
 496         int allow_drag_scroll;
 497         int allow_drag_column;
 498 // Background color of listbox
 499         int list_background;
 500
 501
 502
 503 // Popup button
 504         BC_Pixmap *button_images[4];
 505 // Expander
 506         BC_Pixmap *toggle_images[5];
 507 // Background for drawing on
 508         BC_Pixmap *bg_surface;
 509 // Background if 9 segment
 510         BC_Pixmap *bg_tile;
 511 // Drag icon for text mode
 512         VFrame *drag_icon_vframe;
 513 // Drag column icon
 514         VFrame *drag_column_icon_vframe;
 515 // Background picon to be drawn in the upper right
 516         BC_Pixmap *bg_pixmap;
 517
 518
 519 // Column title backgrounds
 520         BC_Pixmap *column_bg[3];
 521 // Column sort order
 522         BC_Pixmap *column_sort_up;
 523         BC_Pixmap *column_sort_dn;
 524
 525
 526
 527
 528 // Number of column to sort
 529         int sort_column;
 530 // Sort order.  -1 means no column is being sorted.
 531         int sort_order;
 532
 533
 534
 535
 536
 537 // State of the list box and button when the mouse button is pressed.
 538         int current_operation;
 539
 540         enum
 541         {
 542                 NO_OPERATION,
 543                 BUTTON_DOWN_SELECT, // Pressed button and slid off to select items.
 544                 BUTTON_DN,
 545                 DRAG_DIVISION,    // Dragging column division
 546                 DRAG_COLUMN,      // Dragging column
 547                 DRAG_ITEM,        // Dragging item
 548                 SELECT,                   // Select item
 549                 SELECT_RECT,      // Selection rectangle
 550                 WHEEL,                    // Wheel mouse
 551                 COLUMN_DN,                // column title down
 552                 COLUMN_DRAG,      // column title is being dragged
 553                 EXPAND_DN         // Expander is down
 554         };
 555
 556
 557 // More state variables
 558         int button_highlighted;
 559
 560         int disabled;
 561
 562         int list_highlighted;
 563 // item cursor is over.  May not exist in tables.
 564 // Must be an index since this is needed to change the database.
 565         int highlighted_item;
 566         BC_ListBoxItem* highlighted_ptr;
 567 // column title if the cursor is over a column title
 568         int highlighted_title;
 569 // Division the cursor is operating on when resizing
 570         int highlighted_division;
 571 // Column title being dragged
 572         int dragged_title;
 573
 574 // Selection range being extended
 575         int selection_start, selection_end, selection_center;
 576 // Item being dragged or last item selected in a double click operation
 577         int selection_number;
 578 // Used in button_press_event and button_release_event to detect double clicks
 579         int selection_number1, selection_number2;
 580
 581
 582
 583
 584         int active;
 585
 586 // Button release counter for double clicking
 587         int button_releases;
 588         int current_cursor;
 589 // Starting coordinates of rectangle
 590         int rect_x1, rect_y1;
 591         int rect_x2, rect_y2;
 592
 593
 594
 595 // Window for dragging
 596         BC_DragWindow *drag_popup;
 597         int justify;
 598 };
 599
 600
 601
 602
 603 #endif
 604 /*
 605 //      Local Variables:
 606 //      mode: C++
 607 //      c-file-style: "linux"
 608 //      End:
 609 */