cinelerra/zoompanel.C

   1 #include "clip.h"
   2 #include "edl.h"
   3 #include "edlsession.h"
   4 #include "mwindow.h"
   5 #include "mwindowgui.h"
   6 #include "theme.h"
   7 #include "trackcanvas.h"
   8 #include "units.h"
   9 #include "vframe.h"
  10 #include "zoompanel.h"
  11
  12
  13 ZoomHash::ZoomHash(double value, char *text)
  14 {
  15         this->value = value;
  16         this->text = new char[strlen(text) + 1];
  17         strcpy(this->text, text);
  18 }
  19
  20 ZoomHash::~ZoomHash()
  21 {
  22         delete [] text;
  23 }
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  41 ZoomPanel::ZoomPanel(MWindow *mwindow,
  42         BC_WindowBase *subwindow,
  43         double value,
  44         int x,
  45         int y,
  46         int w,
  47         double min,
  48         double max,
  49         int zoom_type)
  50 {
  51         this->mwindow = mwindow;
  52         this->subwindow = subwindow;
  53         this->x = x;
  54         this->y = y;
  55         this->w = w;
  56         this->value = value;
  57         this->min = min;
  58         this->max = max;
  59         this->zoom_type = zoom_type;
  60         this->menu_images = 0;
  61         this->tumbler_images = 0;
  62         this->user_table = 0;
  63         this->user_size = 0;
  64 }
  65
  66 ZoomPanel::ZoomPanel(MWindow *mwindow,
  67         BC_WindowBase *subwindow,
  68         double value,
  69         int x,
  70         int y,
  71         int w,
  72         double *user_table,
  73         int user_size,
  74         int zoom_type)
  75 {
  76         this->mwindow = mwindow;
  77         this->subwindow = subwindow;
  78         this->x = x;
  79         this->y = y;
  80         this->w = w;
  81         this->value = value;
  82         this->min = min;
  83         this->max = max;
  84         this->zoom_type = zoom_type;
  85         this->menu_images = 0;
  86         this->tumbler_images = 0;
  87         this->user_table = user_table;
  88         this->user_size = user_size;
  89 }
  90
  91 ZoomPanel::~ZoomPanel()
  92 {
  93         delete zoom_text;
  94         delete zoom_tumbler;
  95         zoom_table.remove_all_objects();
  96 }
  97
  98 void ZoomPanel::calculate_menu()
  99 {
 100         if(user_size)
 101         {
 102                 for(int i = 0; i < user_size; i++)
 103                 {
 104                         zoom_text->add_item(new BC_MenuItem(value_to_text(user_table[i], 0)));
 105                         zoom_table.append(new ZoomHash(user_table[i], value_to_text(user_table[i], 0)));
 106                 }
 107         }
 108         else
 109         {
 110                 for(double zoom = min; zoom <= max; zoom *= 2)
 111                 {
 112                         zoom_text->add_item(new BC_MenuItem(value_to_text(zoom, 0)));
 113                         zoom_table.append(new ZoomHash(zoom, value_to_text(zoom, 0)));
 114                 }
 115         }
 116 }
 117
 118 void ZoomPanel::update_menu()
 119 {
 120         while(zoom_text->total_items())
 121         {
 122                 zoom_text->remove_item(0);
 123         }
 124
 125         zoom_table.remove_all_objects();
 126         calculate_menu();
 127 }
 128
 129 void ZoomPanel::set_menu_images(VFrame **data)
 130 {
 131         this->menu_images = data;
 132 }
 133
 134 void ZoomPanel::set_tumbler_images(VFrame **data)
 135 {
 136         this->tumbler_images = data;
 137 }
 138
 139 int ZoomPanel::create_objects()
 140 {
 141         subwindow->add_subwindow(zoom_text = new ZoomPopup(mwindow,
 142                 this,
 143                 x,
 144                 y));
 145         x += zoom_text->get_w();
 146         subwindow->add_subwindow(zoom_tumbler = new ZoomTumbler(mwindow,
 147                 this,
 148                 x,
 149                 y));
 150         calculate_menu();
 151         return 0;
 152 }
 153
 154 void ZoomPanel::reposition_window(int x, int y)
 155 {
 156         zoom_text->reposition_window(x, y);
 157         x += zoom_text->get_w();
 158         zoom_tumbler->reposition_window(x, y);
 159 }
 160
 161
 162 int ZoomPanel::get_w()
 163 {
 164         return zoom_text->get_w() + zoom_tumbler->get_w();
 165 }
 166
 167 double ZoomPanel::get_value()
 168 {
 169         return value;
 170 }
 171
 172 char* ZoomPanel::get_text()
 173 {
 174         return zoom_text->get_text();
 175 }
 176
 177 void ZoomPanel::set_text(char *text)
 178 {
 179         zoom_text->set_text(text);
 180 }
 181
 182 void ZoomPanel::update(double value)
 183 {
 184         this->value = value;
 185         zoom_text->set_text(value_to_text(value));
 186 }
 187
 188 void ZoomPanel::update(char *value)
 189 {
 190         zoom_text->set_text(value);
 191 }
 192
 193
 194 char* ZoomPanel::value_to_text(double value, int use_table)
 195 {
 196         if(use_table)
 197         {
 198                 for(int i = 0; i < zoom_table.total; i++)
 199                 {
 200 //printf("ZoomPanel::value_to_text %p\n", zoom_table.values[i]);
 201                         if(EQUIV(zoom_table.values[i]->value, value))
 202                                 return zoom_table.values[i]->text;
 203                 }
 204 //printf("ZoomPanel::value_to_text: should never get here\n");
 205                 return zoom_table.values[0]->text;
 206         }
 207
 208         switch(zoom_type)
 209         {
 210                 case ZOOM_PERCENTAGE:
 211                         sprintf(string, "%d%%", (int)(value * 100));
 212                         break;
 213
 214                 case ZOOM_FLOAT:
 215                         sprintf(string, "%.1f", value);
 216                         break;
 217
 218                 case ZOOM_LONG:
 219                         sprintf(string, "%ld", (long)value);
 220                         break;
 221
 222                 case ZOOM_TIME:
 223                 {
 224                         double total_seconds = (double)mwindow->gui->canvas->get_w() *
 225                                 value /
 226                                 mwindow->edl->session->sample_rate;
 227                         Units::totext(string,
 228                                 total_seconds,
 229                                 mwindow->edl->session->time_format,
 230                                 mwindow->edl->session->sample_rate,
 231                                 mwindow->edl->session->frame_rate,
 232                                 mwindow->edl->session->frames_per_foot);
 233                         break;
 234                 }
 235         }
 236         return string;
 237 }
 238
 239 double ZoomPanel::text_to_zoom(char *text, int use_table)
 240 {
 241         if(use_table)
 242         {
 243                 for(int i = 0; i < zoom_table.total; i++)
 244                 {
 245                         if(!strcasecmp(text, zoom_table.values[i]->text))
 246                                 return zoom_table.values[i]->value;
 247                 }
 248                 return zoom_table.values[0]->value;
 249         }
 250
 251         switch(zoom_type)
 252         {
 253                 case ZOOM_PERCENTAGE:
 254                         return atof(text) / 100;
 255                         break;
 256                 case ZOOM_FLOAT:
 257                 case ZOOM_LONG:
 258                         return atof(text);
 259                         break;
 260                 case ZOOM_TIME:
 261                 {
 262                         double result = 1;
 263                         double total_samples = Units::fromtext(text,
 264                                 mwindow->edl->session->sample_rate,
 265                                 mwindow->edl->session->time_format,
 266                                 mwindow->edl->session->frame_rate,
 267                                 mwindow->edl->session->frames_per_foot);
 268                         total_samples /= mwindow->gui->canvas->get_w();
 269                         double difference = fabs(total_samples - result);
 270                         while(fabs(result - total_samples) <= difference)
 271                         {
 272                                 difference = fabs(result - total_samples);
 273                                 result *= 2;
 274                         }
 275                         return result;
 276                         break;
 277                 }
 278         }
 279 }
 280
 281
 282
 283
 284
 285
 286
 287 ZoomPopup::ZoomPopup(MWindow *mwindow, ZoomPanel *panel, int x, int y)
 288  : BC_PopupMenu(x,
 289                 y,
 290                 panel->w,
 291                 panel->value_to_text(panel->value, 0),
 292                 1,
 293                 panel->menu_images)
 294 {
 295         this->mwindow = mwindow;
 296         this->panel = panel;
 297 }
 298
 299 ZoomPopup::~ZoomPopup()
 300 {
 301 }
 302
 303 int ZoomPopup::handle_event()
 304 {
 305         panel->value = panel->text_to_zoom(get_text());
 306         panel->handle_event();
 307         return 1;
 308 }
 309
 310
 311
 312 ZoomTumbler::ZoomTumbler(MWindow *mwindow, ZoomPanel *panel, int x, int y)
 313  : BC_Tumbler(x,
 314         y,
 315         panel->tumbler_images)
 316 {
 317         this->mwindow = mwindow;
 318         this->panel = panel;
 319 }
 320
 321 ZoomTumbler::~ZoomTumbler()
 322 {
 323 }
 324
 325 int ZoomTumbler::handle_up_event()
 326 {
 327         if(panel->user_table)
 328         {
 329                 int current_index = 0;
 330                 for(current_index = 0; current_index < panel->user_size; current_index++)
 331                         if(EQUIV(panel->user_table[current_index], panel->value)) break;
 332                 current_index++;
 333                 CLAMP(current_index, 0, panel->user_size - 1);
 334                 panel->value = panel->user_table[current_index];
 335         }
 336         else
 337         {
 338                 panel->value *= 2;
 339                 RECLIP(panel->value, panel->min, panel->max);
 340         }
 341
 342         panel->zoom_text->set_text(panel->value_to_text(panel->value));
 343         panel->handle_event();
 344         return 1;
 345 }
 346
 347 int ZoomTumbler::handle_down_event()
 348 {
 349         if(panel->user_table)
 350         {
 351                 int current_index = 0;
 352                 for(current_index = 0; current_index < panel->user_size; current_index++)
 353                         if(EQUIV(panel->user_table[current_index], panel->value)) break;
 354                 current_index--;
 355                 CLAMP(current_index, 0, panel->user_size - 1);
 356                 panel->value = panel->user_table[current_index];
 357         }
 358         else
 359         {
 360                 panel->value /= 2;
 361                 RECLIP(panel->value, panel->min, panel->max);
 362         }
 363         panel->zoom_text->set_text(panel->value_to_text(panel->value));
 364         panel->handle_event();
 365         return 1;
 366 }