cinelerra-5.1/cinelerra/maincursor.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 "bcsignals.h"
  23 #include "edl.h"
  24 #include "edlsession.h"
  25 #include "localsession.h"
  26 #include "maincursor.h"
  27 #include "mwindow.h"
  28 #include "mwindowgui.h"
  29 #include "preferences.h"
  30 #include "timelinepane.h"
  31 #include "trackcanvas.h"
  32
  33
  34 MainCursor::MainCursor(MWindow *mwindow, MWindowGUI *gui)
  35 {
  36         this->mwindow = mwindow;
  37         this->gui = gui;
  38         visible = 0;
  39         active = 0;
  40         playing_back = 0;
  41         pane = 0;
  42 }
  43
  44 MainCursor::MainCursor(MWindow *mwindow, TimelinePane *pane)
  45 {
  46         this->mwindow = mwindow;
  47         this->gui = mwindow->gui;
  48         this->pane = pane;
  49         visible = 0;
  50         active = 0;
  51         playing_back = 0;
  52 }
  53
  54 MainCursor::~MainCursor()
  55 {
  56 }
  57
  58 void MainCursor::create_objects()
  59 {
  60 //      draw();
  61 }
  62
  63 void MainCursor::focus_in_event()
  64 {
  65 }
  66
  67 void MainCursor::focus_out_event()
  68 {
  69         show();
  70         flash();
  71 }
  72
  73 void MainCursor::activate()
  74 {
  75 //printf("MainCursor::activate 1 %d\n", BC_WindowBase::get_resources()->blink_rate);
  76         if(!active)
  77         {
  78                 active = 1;
  79                 gui->set_repeat(BC_WindowBase::get_resources()->blink_rate);
  80         }
  81 }
  82
  83 void MainCursor::deactivate()
  84 {
  85         if(active)
  86         {
  87                 active = 0;
  88                 gui->unset_repeat(BC_WindowBase::get_resources()->blink_rate);
  89                 show();
  90                 flash();
  91         }
  92 }
  93
  94 int MainCursor::repeat_event(int64_t duration)
  95 {
  96         if(!active || !gui->get_has_focus()) return 0;
  97         if(duration != BC_WindowBase::get_resources()->blink_rate) return 0;
  98
  99 // Only flash a single sample selection
 100         if(selectionstart == selectionend)
 101         {
 102                 if(!playing_back || (playing_back && !visible))
 103                 {
 104                         draw(1);
 105                         flash();
 106                 }
 107         }
 108         return 1;
 109 }
 110
 111 void MainCursor::draw(int do_plugintoggles)
 112 {
 113         if(!visible)
 114         {
 115                 selectionstart = mwindow->edl->local_session->get_selectionstart(1);
 116                 selectionend = mwindow->edl->local_session->get_selectionend(1);
 117                 view_start = mwindow->edl->local_session->view_start[pane->number];
 118                 zoom_sample = mwindow->edl->local_session->zoom_sample;
 119 //printf("MainCursor::draw %f %f\n", selectionstart, selectionend);
 120
 121                 pixel1 = Units::to_int64((selectionstart *
 122                         mwindow->edl->session->sample_rate /
 123                         zoom_sample -
 124                         view_start));
 125                 pixel2 = Units::to_int64((selectionend *
 126                         mwindow->edl->session->sample_rate /
 127                         zoom_sample -
 128                         view_start));
 129                 if(pixel1 < -10) pixel1 = -10;
 130                 if(pixel2 > pane->canvas->get_w() + 10)
 131                         pixel2 = pane->canvas->get_w() + 10;
 132                 if(pixel2 < pixel1) pixel2 = pixel1;
 133 //printf("MainCursor::draw 2\n");
 134         }
 135
 136         pane->canvas->set_color(mwindow->preferences->highlight_inverse);
 137         pane->canvas->set_inverse();
 138         pane->canvas->draw_box(pixel1, 0, pixel2 - pixel1 + 1, pane->canvas->get_h());
 139         pane->canvas->set_opaque();
 140         if(do_plugintoggles) pane->canvas->refresh_plugintoggles();
 141         visible = !visible;
 142 }
 143
 144 // Draw the cursor in a new location
 145 void MainCursor::update()
 146 {
 147         int64_t old_pixel1 = pixel1;
 148         int64_t old_pixel2 = pixel2;
 149
 150         if(visible)
 151         {
 152                 hide(0);
 153         }
 154
 155         show(1);
 156         if(old_pixel1 != pixel1 || old_pixel2 != pixel2)
 157                 pane->canvas->flash(old_pixel1,
 158                         0,
 159                         old_pixel2 - old_pixel1 + 1,
 160                         pane->canvas->get_h());
 161         flash();
 162 }
 163
 164
 165 void MainCursor::flash()
 166 {
 167         pane->canvas->flash(pixel1, 0, pixel2 - pixel1 + 1, pane->canvas->get_h());
 168 }
 169
 170 void MainCursor::hide(int do_plugintoggles)
 171 {
 172         if(visible) draw(do_plugintoggles);
 173 }
 174
 175 void MainCursor::show(int do_plugintoggles)
 176 {
 177         if(!visible) draw(do_plugintoggles);
 178 }
 179
 180 // Constitutively redraw the cursor after it is overwritten by a draw
 181 void MainCursor::restore(int do_plugintoggles)
 182 {
 183         if(visible)
 184         {
 185                 draw(do_plugintoggles);
 186                 visible = 1;
 187         }
 188 }