hvirtual/cinelerra/maincursor.C

   1 #include "edl.h"
   2 #include "edlsession.h"
   3 #include "localsession.h"
   4 #include "maincursor.h"
   5 #include "mwindow.h"
   6 #include "mwindowgui.h"
   7 #include "trackcanvas.h"
   8
   9
  10 MainCursor::MainCursor(MWindow *mwindow, MWindowGUI *gui)
  11 {
  12         this->mwindow = mwindow;
  13         this->gui = gui;
  14         visible = 0;
  15         active = 0;
  16         playing_back = 0;
  17 }
  18
  19 MainCursor::~MainCursor()
  20 {
  21 }
  22
  23 void MainCursor::create_objects()
  24 {
  25 //      draw();
  26 }
  27
  28 void MainCursor::activate()
  29 {
  30 //printf("MainCursor::activate 1 %d\n", BC_WindowBase::get_resources()->blink_rate);
  31         if(!active)
  32         {
  33                 active = 1;
  34                 gui->set_repeat(BC_WindowBase::get_resources()->blink_rate);
  35         }
  36 }
  37
  38 void MainCursor::deactivate()
  39 {
  40         if(active)
  41         {
  42                 active = 0;
  43                 gui->unset_repeat(BC_WindowBase::get_resources()->blink_rate);
  44                 show();
  45                 flash();
  46         }
  47 }
  48
  49 int MainCursor::repeat_event(int64_t duration)
  50 {
  51         if(!active) return 0;
  52 //printf("MainCursor::repeat_event 1 %d\n", duration);
  53         if(duration != BC_WindowBase::get_resources()->blink_rate) return 0;
  54
  55 // Only flash a single sample selection
  56         if(selectionstart == selectionend)
  57         {
  58                 if(!playing_back || (playing_back && !visible))
  59                 {
  60                         draw();
  61                         flash();
  62                 }
  63         }
  64 //printf("MainCursor::repeat_event 2 %d\n", duration);
  65         return 1;
  66 }
  67
  68 void MainCursor::draw()
  69 {
  70         if(!visible)
  71         {
  72 //printf("MainCursor::draw 1\n");
  73                 selectionstart = mwindow->edl->local_session->selectionstart;
  74                 selectionend = mwindow->edl->local_session->selectionend;
  75                 view_start = mwindow->edl->local_session->view_start;
  76                 zoom_sample = mwindow->edl->local_session->zoom_sample;
  77
  78                 pixel1 = Units::to_int64((selectionstart *
  79                         mwindow->edl->session->sample_rate /
  80                         zoom_sample -
  81                         view_start));
  82                 pixel2 = Units::to_int64((selectionend *
  83                         mwindow->edl->session->sample_rate /
  84                         zoom_sample -
  85                         view_start));
  86                 if(pixel1 < -10) pixel1 = -10;
  87                 if(pixel2 > gui->canvas->get_w() + 10) pixel2 = gui->canvas->get_w() + 10;
  88                 if(pixel2 < pixel1) pixel2 = pixel1;
  89 //printf("MainCursor::draw 2\n");
  90         }
  91
  92         gui->canvas->set_color(WHITE);
  93         gui->canvas->set_inverse();
  94         gui->canvas->draw_box(pixel1, 0, pixel2 - pixel1 + 1, gui->canvas->get_h());
  95         gui->canvas->set_opaque();
  96         visible = !visible;
  97 }
  98
  99 // Draw the cursor in a new location
 100 void MainCursor::update()
 101 {
 102         if(visible)
 103         {
 104                 hide();
 105                 flash();
 106         }
 107         show();
 108         flash();
 109 }
 110
 111
 112 void MainCursor::flash()
 113 {
 114         gui->canvas->flash(pixel1, 0, pixel2 - pixel1 + 1, gui->canvas->get_h());
 115 }
 116
 117 void MainCursor::hide()
 118 {
 119         if(visible) draw();
 120 }
 121
 122 void MainCursor::show()
 123 {
 124 //printf("MainCursor::show 1 %d\n", visible);
 125         if(!visible) draw();
 126 }
 127
 128 // Constitutively redraw the cursor after it is overwritten by a draw
 129 void MainCursor::restore()
 130 {
 131         if(visible)
 132         {
 133                 draw();
 134                 visible = 1;
 135         }
 136 }