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                 selectionstart = mwindow->edl->local_session->get_selectionstart(1);
  82                 selectionend = mwindow->edl->local_session->get_selectionend(1);
  83                 view_start = mwindow->edl->local_session->view_start;
  84                 zoom_sample = mwindow->edl->local_session->zoom_sample;
  85
  86                 pixel1 = Units::to_int64((selectionstart *
  87                         mwindow->edl->session->sample_rate /
  88                         zoom_sample -
  89                         view_start));
  90                 pixel2 = Units::to_int64((selectionend *
  91                         mwindow->edl->session->sample_rate /
  92                         zoom_sample -
  93                         view_start));
  94                 if(pixel1 < -10) pixel1 = -10;
  95                 if(pixel2 > gui->canvas->get_w() + 10) pixel2 = gui->canvas->get_w() + 10;
  96                 if(pixel2 < pixel1) pixel2 = pixel1;
  97 //printf("MainCursor::draw 2\n");
  98         }
  99
 100         gui->canvas->set_color(WHITE);
 101         gui->canvas->set_inverse();
 102         gui->canvas->draw_box(pixel1, 0, pixel2 - pixel1 + 1, gui->canvas->get_h());
 103         gui->canvas->set_opaque();
 104         visible = !visible;
 105 }
 106
 107 // Draw the cursor in a new location
 108 void MainCursor::update()
 109 {
 110         if(visible)
 111         {
 112                 hide();
 113                 flash();
 114         }
 115         show();
 116         flash();
 117 }
 118
 119
 120 void MainCursor::flash()
 121 {
 122         gui->canvas->flash(pixel1, 0, pixel2 - pixel1 + 1, gui->canvas->get_h());
 123         gui->flush();
 124 }
 125
 126 void MainCursor::hide()
 127 {
 128         if(visible) draw();
 129 }
 130
 131 void MainCursor::show()
 132 {
 133         if(!visible) draw();
 134 }
 135
 136 // Constitutively redraw the cursor after it is overwritten by a draw
 137 void MainCursor::restore()
 138 {
 139         if(visible)
 140         {
 141                 draw();
 142                 visible = 1;
 143         }
 144 }