hvirtual/cinelerra/maincursor.C

   1 #include "bcsignals.h"
   2 #include "edl.h"
   3 #include "edlsession.h"
   4 #include "localsession.h"
   5 #include "maincursor.h"
   6 #include "mwindow.h"
   7 #include "mwindowgui.h"
   8 #include "trackcanvas.h"
   9
  10
  11 MainCursor::MainCursor(MWindow *mwindow, MWindowGUI *gui)
  12 {
  13         this->mwindow = mwindow;
  14         this->gui = gui;
  15         visible = 0;
  16         active = 0;
  17         playing_back = 0;
  18 }
  19
  20 MainCursor::~MainCursor()
  21 {
  22 }
  23
  24 void MainCursor::create_objects()
  25 {
  26 //      draw();
  27 }
  28
  29 void MainCursor::focus_in_event()
  30 {
  31 }
  32
  33 void MainCursor::focus_out_event()
  34 {
  35         show();
  36         flash();
  37 }
  38
  39 void MainCursor::activate()
  40 {
  41 //printf("MainCursor::activate 1 %d\n", BC_WindowBase::get_resources()->blink_rate);
  42         if(!active)
  43         {
  44                 active = 1;
  45                 gui->set_repeat(BC_WindowBase::get_resources()->blink_rate);
  46         }
  47 }
  48
  49 void MainCursor::deactivate()
  50 {
  51         if(active)
  52         {
  53                 active = 0;
  54                 gui->unset_repeat(BC_WindowBase::get_resources()->blink_rate);
  55                 show();
  56                 flash();
  57         }
  58 }
  59
  60 int MainCursor::repeat_event(int64_t duration)
  61 {
  62         if(!active || !gui->get_has_focus()) return 0;
  63         if(duration != BC_WindowBase::get_resources()->blink_rate) return 0;
  64
  65 // Only flash a single sample selection
  66         if(selectionstart == selectionend)
  67         {
  68                 if(!playing_back || (playing_back && !visible))
  69                 {
  70                         draw();
  71                         flash();
  72                 }
  73         }
  74         return 1;
  75 }
  76
  77 void MainCursor::draw()
  78 {
  79         if(!visible)
  80         {
  81 //printf("MainCursor::draw 1\n");
  82                 selectionstart = mwindow->edl->local_session->selectionstart;
  83                 selectionend = mwindow->edl->local_session->selectionend;
  84                 view_start = mwindow->edl->local_session->view_start;
  85                 zoom_sample = mwindow->edl->local_session->zoom_sample;
  86
  87                 pixel1 = Units::to_int64((selectionstart *
  88                         mwindow->edl->session->sample_rate /
  89                         zoom_sample -
  90                         view_start));
  91                 pixel2 = Units::to_int64((selectionend *
  92                         mwindow->edl->session->sample_rate /
  93                         zoom_sample -
  94                         view_start));
  95                 if(pixel1 < -10) pixel1 = -10;
  96                 if(pixel2 > gui->canvas->get_w() + 10) pixel2 = gui->canvas->get_w() + 10;
  97                 if(pixel2 < pixel1) pixel2 = pixel1;
  98 //printf("MainCursor::draw 2\n");
  99         }
 100
 101         gui->canvas->set_color(WHITE);
 102         gui->canvas->set_inverse();
 103         gui->canvas->draw_box(pixel1, 0, pixel2 - pixel1 + 1, gui->canvas->get_h());
 104         gui->canvas->set_opaque();
 105         visible = !visible;
 106 }
 107
 108 // Draw the cursor in a new location
 109 void MainCursor::update()
 110 {
 111         if(visible)
 112         {
 113                 hide();
 114                 flash();
 115         }
 116         show();
 117         flash();
 118 }
 119
 120
 121 void MainCursor::flash()
 122 {
 123         gui->canvas->flash(pixel1, 0, pixel2 - pixel1 + 1, gui->canvas->get_h());
 124         gui->flush();
 125 }
 126
 127 void MainCursor::hide()
 128 {
 129         if(visible) draw();
 130 }
 131
 132 void MainCursor::show()
 133 {
 134         if(!visible) draw();
 135 }
 136
 137 // Constitutively redraw the cursor after it is overwritten by a draw
 138 void MainCursor::restore()
 139 {
 140         if(visible)
 141         {
 142                 draw();
 143                 visible = 1;
 144         }
 145 }