cinelerra-5.1/guicast/bcpopupmenu.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcmenubar.h"
  23 #include "bcmenuitem.h"
  24 #include "bcmenupopup.h"
  25 #include "bcpixmap.h"
  26 #include "bcpopupmenu.h"
  27 #include "bcresources.h"
  28 #include "bcsignals.h"
  29 #include "bccolors.h"
  30 #include "fonts.h"
  31 #include <string.h>
  32 #include "vframe.h"
  33
  34 #define BUTTON_UP 0
  35 #define BUTTON_HI 1
  36 #define BUTTON_DN 2
  37 #define TOTAL_IMAGES 3
  38
  39
  40 #define TRIANGLE_W 10
  41 #define TRIANGLE_H 10
  42
  43
  44 BC_PopupMenu::BC_PopupMenu(int x, int y, int w, const char *text,
  45                 int use_title, VFrame **data, int margin)
  46  : BC_SubWindow(x, y, 0, 0, -1)
  47 {
  48         highlighted = popup_down = 0;
  49         menu_popup = 0;
  50         icon = 0;
  51         this->margin = margin >= 0 ? margin :
  52                 BC_WindowBase::get_resources()->popupmenu_margin;
  53         this->use_title = use_title;
  54         strcpy(this->text, text);
  55         for( int i=0; i<TOTAL_IMAGES; ++i ) images[i] = 0;
  56         this->data = data;
  57         this->w_argument = w;
  58         status = BUTTON_UP;
  59         pending = 0;
  60 }
  61
  62 BC_PopupMenu::BC_PopupMenu(int x, int y, const char *text,
  63                 int use_title, VFrame **data)
  64  : BC_SubWindow(x, y, 0, -1, -1)
  65 {
  66         highlighted = popup_down = 0;
  67         menu_popup = 0;
  68         icon = 0;
  69         this->margin = BC_WindowBase::get_resources()->popupmenu_margin;
  70         this->use_title = use_title;
  71         strcpy(this->text, text);
  72         for( int i=0; i<TOTAL_IMAGES; ++i ) images[i] = 0;
  73         this->data = data;
  74         this->w_argument = -1;
  75         status = BUTTON_UP;
  76         pending = 0;
  77 }
  78
  79 BC_PopupMenu::~BC_PopupMenu()
  80 {
  81         use_title = 0;
  82         deactivate();
  83         delete menu_popup;
  84         for( int i=0; i<TOTAL_IMAGES; ++i ) delete images[i];
  85 }
  86
  87 char* BC_PopupMenu::get_text()
  88 {
  89         return text;
  90 }
  91
  92 void BC_PopupMenu::set_text(const char *text)
  93 {
  94         if( use_title ) {
  95                 strcpy(this->text, text);
  96                 draw_title(1);
  97         }
  98 }
  99
 100 void BC_PopupMenu::set_icon(BC_Pixmap *icon)
 101 {
 102         if( use_title ) {
 103                 this->icon = icon;
 104                 if( menu_popup ) draw_title(1);
 105         }
 106 }
 107
 108 int BC_PopupMenu::initialize()
 109 {
 110         if( use_title ) {
 111                 if( data )
 112                         set_images(data);
 113                 else
 114                 if( BC_WindowBase::get_resources()->popupmenu_images )
 115                         set_images(BC_WindowBase::get_resources()->popupmenu_images);
 116                 else
 117                         set_images(BC_WindowBase::get_resources()->generic_button_images);
 118         }
 119         else {
 120 // Move outside window if no title
 121                 x = -10;  y = -10;
 122                 w = 10;   h = 10;
 123         }
 124
 125         BC_SubWindow::initialize();
 126
 127         menu_popup = new BC_MenuPopup;
 128         menu_popup->initialize(top_level, 0, 0, 0, this);
 129
 130         if( use_title ) draw_title(0);
 131
 132         return 0;
 133 }
 134
 135 int BC_PopupMenu::set_images(VFrame **data)
 136 {
 137         for( int i=0; i<3; ++i ) {
 138                 delete images[i];
 139                 images[i] = new BC_Pixmap(parent_window, data[i], PIXMAP_ALPHA);
 140         }
 141
 142         w = w_argument > 0 ? w_argument :
 143                 calculate_w(margin, get_text_width(MEDIUMFONT, text), use_title);
 144         h = images[BUTTON_UP]->get_h();
 145         return 0;
 146 }
 147
 148 int BC_PopupMenu::calculate_w(int margin, int text_width, int use_title)
 149 {
 150         BC_Resources *resources = get_resources();
 151         int l = margin >= 0 ? margin : resources->popupmenu_margin;
 152         int r = use_title < 0 ? l : resources->popupmenu_triangle_margin;
 153         return l + text_width + r;
 154 }
 155
 156 int BC_PopupMenu::calculate_w(int text_width)
 157 {
 158         return calculate_w(-1, text_width, 0);
 159 }
 160
 161 int BC_PopupMenu::calculate_h(VFrame **data)
 162 {
 163         if( !data ) data = BC_WindowBase::get_resources()->popupmenu_images ?
 164                 BC_WindowBase::get_resources()->popupmenu_images :
 165                 BC_WindowBase::get_resources()->generic_button_images ;
 166
 167         return data[BUTTON_UP]->get_h();
 168 }
 169
 170 int BC_PopupMenu::add_item(BC_MenuItem *item)
 171 {
 172         menu_popup->add_item(item);
 173         return 0;
 174 }
 175
 176 int BC_PopupMenu::remove_item(BC_MenuItem *item)
 177 {
 178         menu_popup->remove_item(item);
 179         return 0;
 180 }
 181
 182 int BC_PopupMenu::del_item(BC_MenuItem *item)
 183 {
 184         menu_popup->del_item(item);
 185         return 0;
 186 }
 187
 188 int BC_PopupMenu::total_items()
 189 {
 190         return menu_popup->total_items();
 191 }
 192
 193 BC_MenuItem* BC_PopupMenu::get_item(int i)
 194 {
 195         return menu_popup->menu_items.values[i];
 196 }
 197
 198 int BC_PopupMenu::get_margin()
 199 {
 200         return margin;
 201 }
 202
 203 int BC_PopupMenu::draw_face(int dx)
 204 {
 205         if( !use_title ) return 0;
 206
 207 // Background
 208         draw_top_background(parent_window, 0, 0, w, h);
 209         draw_3segmenth(0, 0, w, images[status]);
 210
 211 // Overlay text
 212         set_color(get_resources()->popup_title_text);
 213         int offset = status == BUTTON_DN ? 1 : 0;
 214         int available_w = get_w() - calculate_w(margin, 0, use_title);
 215
 216         if( !icon ) {
 217                 char truncated[BCTEXTLEN];
 218                 truncate_text(truncated, text, available_w);
 219                 set_font(MEDIUMFONT);
 220                 BC_WindowBase::draw_center_text(
 221                         dx + available_w/2 + margin + offset,
 222                         (int)((float)get_h()/2 + get_text_ascent(MEDIUMFONT)/2 - 2) + offset,
 223                         truncated);
 224         }
 225
 226         if( icon ) {
 227                 draw_pixmap(icon,
 228                         available_w/ 2 + margin + offset - icon->get_w()/2 ,
 229                         get_h()/2 - icon->get_h()/2 + offset);
 230         }
 231
 232         if( use_title >= 0 )
 233                 draw_triangle_down_flat(available_w + margin,
 234                         get_h()/2 - TRIANGLE_H/2, TRIANGLE_W, TRIANGLE_H);
 235         return 1;
 236 }
 237
 238 int BC_PopupMenu::draw_title(int flush)
 239 {
 240         draw_face(0);
 241         flash(flush);
 242         return 0;
 243 }
 244
 245 int BC_PopupMenu::deactivate()
 246 {
 247         if( popup_down ) {
 248                 top_level->active_popup_menu = 0;
 249                 popup_down = 0;
 250                 menu_popup->deactivate_menu();
 251
 252                 if( use_title ) draw_title(1);    // draw the title
 253         }
 254         return 0;
 255 }
 256
 257 int BC_PopupMenu::activate_menu()
 258 {
 259         if( !get_button_down() || !BC_WindowBase::get_resources()->popupmenu_btnup )
 260                 return menu_activate();
 261         top_level->active_popup_menu = this;
 262         pending = 1;
 263         return 0;
 264 }
 265
 266 int BC_PopupMenu::menu_activate()
 267 {
 268         pending = 0;
 269         if( !popup_down ) {
 270                 int x = this->x;
 271                 int y = this->y;
 272
 273                 top_level->deactivate();
 274                 top_level->active_popup_menu = this;
 275                 if( !use_title ) {
 276                         x = top_level->get_abs_cursor_x(0) - get_w();
 277                         y = top_level->get_abs_cursor_y(0) - get_h();
 278                         button_press_x = top_level->cursor_x;
 279                         button_press_y = top_level->cursor_y;
 280                 }
 281
 282                 if( use_title ) {
 283                         Window tempwin;
 284                         int new_x, new_y;
 285                         XTranslateCoordinates(top_level->display,
 286                                 win, top_level->rootwin,
 287                                 0, 0, &new_x, &new_y, &tempwin);
 288                         menu_popup->activate_menu(new_x, new_y,
 289                                 w, h, 0, 1);
 290                 }
 291                 else
 292                         menu_popup->activate_menu(x+3, y+3, w, h, 0, 1);
 293                 popup_down = 1;
 294                 if( use_title ) draw_title(1);
 295         }
 296         return 1;
 297 }
 298
 299 int BC_PopupMenu::deactivate_menu()
 300 {
 301         deactivate();
 302         return 0;
 303 }
 304
 305
 306 int BC_PopupMenu::reposition_window(int x, int y)
 307 {
 308         BC_WindowBase::reposition_window(x, y);
 309         draw_title(0);
 310         return 0;
 311 }
 312
 313 int BC_PopupMenu::focus_out_event()
 314 {
 315         if( popup_down && !get_button_down() &&
 316             !cursor_inside() && !menu_popup->cursor_inside() )
 317                 deactivate();
 318         return 0;
 319 }
 320
 321
 322 int BC_PopupMenu::repeat_event(int64_t duration)
 323 {
 324         if( status == BUTTON_HI &&
 325                 tooltip_text && tooltip_text[0] != 0 &&
 326                 duration == top_level->get_resources()->tooltip_delay ) {
 327                 show_tooltip();
 328                 return 1;
 329         }
 330         return 0;
 331 }
 332
 333 int BC_PopupMenu::button_press_event()
 334 {
 335         int result = 0;
 336         if( get_buttonpress() == 1 &&
 337                 is_event_win() &&
 338                 use_title ) {
 339                 top_level->hide_tooltip();
 340                 if( status == BUTTON_HI || status == BUTTON_UP ) status = BUTTON_DN;
 341                 activate_menu();
 342                 draw_title(1);
 343                 return 1;
 344         }
 345
 346         // Scrolling section
 347         if( is_event_win()
 348                 && (get_buttonpress() == 4 || get_buttonpress() == 5)
 349                 && menu_popup->total_items() > 1  ) {
 350                 int theval = -1;
 351                 for( int i=0; i<menu_popup->total_items(); ++i ) {
 352                         if( !strcmp(menu_popup->menu_items.values[i]->get_text(),get_text()) ) {
 353                                 theval = i;
 354                                 break;
 355                         }
 356                 }
 357
 358                 if( theval == -1 ) theval = 0;
 359                 else if( get_buttonpress() == 4 ) --theval;
 360                 else if( get_buttonpress() == 5 ) ++theval;
 361
 362                 if( theval < 0 )
 363                         theval = 0;
 364                 else if( theval >= menu_popup->total_items() )
 365                         theval = menu_popup->total_items() - 1;
 366
 367                 BC_MenuItem *tmp = menu_popup->menu_items.values[theval];
 368                 set_text(tmp->get_text());
 369                 result = tmp->handle_event();
 370                 if( !result )
 371                         result = this->handle_event();
 372         }
 373         if( popup_down ) {
 374 // Menu is down so dispatch to popup.
 375                 menu_popup->dispatch_button_press();
 376                 result = 1;
 377         }
 378
 379         return result;
 380 }
 381
 382 int BC_PopupMenu::button_release_event()
 383 {
 384 // try the title
 385         int result = 0;
 386
 387         if( is_event_win() && use_title ) {
 388                 hide_tooltip();
 389                 if( status == BUTTON_DN ) {
 390                         status = BUTTON_HI;
 391                         draw_title(1);
 392                 }
 393         }
 394
 395         if( pending )
 396                 return menu_activate();
 397
 398         if( !use_title && status == BUTTON_DN ) {
 399                 result = 1;
 400         }
 401         else if( popup_down && menu_popup->cursor_inside() ) {
 402 // Menu is down so dispatch to popup.
 403                 result = menu_popup->dispatch_button_release();
 404         }
 405 // released outside popup
 406         if( get_resources()->popupmenu_btnup && !result && popup_down ) {
 407                 deactivate();
 408                 result = 1;
 409         }
 410         hide_tooltip();
 411
 412         return result;
 413 }
 414
 415 int BC_PopupMenu::translation_event()
 416 {
 417 //printf("BC_PopupMenu::translation_event 1\n");
 418         if( popup_down ) menu_popup->dispatch_translation_event();
 419         return 0;
 420 }
 421
 422 int BC_PopupMenu::cursor_leave_event()
 423 {
 424
 425         if( status == BUTTON_HI && use_title ) {
 426                 status = BUTTON_UP;
 427                 draw_title(1);
 428                 hide_tooltip();
 429         }
 430
 431 // dispatch to popup
 432         if( popup_down ) {
 433                 if( !get_button_down() && !menu_popup->cursor_inside() ) {
 434                         status = BUTTON_UP;
 435 //                      deactivate_menu();
 436                 }
 437                 menu_popup->dispatch_cursor_leave();
 438         }
 439
 440         return 0;
 441 }
 442
 443
 444 int BC_PopupMenu::cursor_enter_event()
 445 {
 446         if( is_event_win() && use_title ) {
 447                 if( top_level->button_down ) {
 448                         status = BUTTON_DN;
 449                 }
 450                 else
 451                 if( status == BUTTON_UP )
 452                         status = BUTTON_HI;
 453                 draw_title(1);
 454         }
 455
 456         return 0;
 457 }
 458
 459 int BC_PopupMenu::cursor_motion_event()
 460 {
 461         int result = 0;
 462
 463 // This menu is down.
 464         if( popup_down ) {
 465                 result = menu_popup->dispatch_motion_event();
 466         }
 467
 468         if( !result && use_title && is_event_win() ) {
 469                 if( highlighted ) {
 470                         if( !cursor_inside() ) {
 471                                 highlighted = 0;
 472                                 draw_title(1);
 473                         }
 474                 }
 475                 else {
 476                         if( cursor_inside() ) {
 477                                 highlighted = 1;
 478                                 draw_title(1);
 479                                 result = 1;
 480                         }
 481                 }
 482         }
 483
 484         return result;
 485 }
 486
 487 int BC_PopupMenu::drag_start_event()
 488 {
 489 //printf("BC_PopupMenu::drag_start_event %d\n", popup_down);
 490         if( popup_down ) return 1;
 491         return 0;
 492 }
 493
 494 int BC_PopupMenu::drag_stop_event()
 495 {
 496         if( popup_down ) return 1;
 497         return 0;
 498 }
 499
 500 int BC_PopupMenu::drag_motion_event()
 501 {
 502         if( popup_down ) return 1;
 503         return 0;
 504 }
 505