juce/source/extras/JuceDemo/Source/demos/DirectShowDemo.cpp

   1
   2 #include "../jucedemo_headers.h"
   3
   4 #if JUCE_DIRECTSHOW
   5
   6 //==============================================================================
   7 class DirectShowWindowWithFileBrowser  : public Component,
   8                                          public FilenameComponentListener
   9 {
  10 public:
  11     DirectShowWindowWithFileBrowser (DirectShowComponent::VideoRendererType type)
  12         : fileChooser ("movie", File::nonexistent, true, false, false,
  13                        "*", String::empty, "(choose a video file to play)"),
  14           dshowComp (type)
  15     {
  16         addAndMakeVisible (&dshowComp);
  17         addAndMakeVisible (&fileChooser);
  18         fileChooser.addListener (this);
  19         fileChooser.setBrowseButtonText ("browse");
  20     }
  21
  22     void resized()
  23     {
  24         dshowComp.setBounds (0, 0, getWidth(), getHeight() - 60);
  25
  26         if (transportControl != 0)
  27             transportControl->setBounds (0, dshowComp.getBottom() + 4, getWidth(), 26);
  28
  29         fileChooser.setBounds (0, getHeight() - 24, getWidth(), 24);
  30     }
  31
  32     void filenameComponentChanged (FilenameComponent*)
  33     {
  34         // this is called when the user changes the filename in the file chooser box
  35         if (dshowComp.loadMovie (fileChooser.getCurrentFile()))
  36         {
  37             addAndMakeVisible (transportControl = new TransportControl (dshowComp));
  38             resized();
  39
  40             dshowComp.play();
  41         }
  42         else
  43         {
  44             AlertWindow::showMessageBox (AlertWindow::WarningIcon,
  45                                          "Couldn't load the file!",
  46                                          "Sorry, DirectShow didn't manage to load that file!");
  47         }
  48     }
  49
  50 private:
  51     DirectShowComponent dshowComp;
  52     FilenameComponent fileChooser;
  53
  54     //==============================================================================
  55     // A quick-and-dirty transport control, containing a play button and a position slider..
  56     class TransportControl  : public Component,
  57                               public ButtonListener,
  58                               public SliderListener,
  59                               public Timer
  60     {
  61     public:
  62         TransportControl (DirectShowComponent& dshowComp_)
  63             : playButton ("Play/Pause"),
  64               position (String::empty),
  65               dshowComp (dshowComp_)
  66         {
  67             addAndMakeVisible (&playButton);
  68             playButton.addListener (this);
  69
  70             addAndMakeVisible (&position);
  71             position.setRange (0, dshowComp.getMovieDuration(), 0);
  72             position.setSliderStyle (Slider::LinearHorizontal);
  73             position.setTextBoxStyle (Slider::NoTextBox, false, 80, 20);
  74             position.addListener (this);
  75
  76             startTimer (1000 / 50);
  77         }
  78
  79         void buttonClicked (Button* buttonThatWasClicked)
  80         {
  81             if (dshowComp.isPlaying())
  82                 dshowComp.stop();
  83             else
  84                 dshowComp.play();
  85         }
  86
  87         void sliderValueChanged (Slider* sliderThatWasMoved)
  88         {
  89             dshowComp.setPosition (position.getValue());
  90         }
  91
  92         void resized()
  93         {
  94             const int playButtonWidth = 90;
  95             playButton.setBounds (0, 0, playButtonWidth, getHeight());
  96             position.setBounds (playButtonWidth, 0, getWidth() - playButtonWidth, getHeight());
  97         }
  98
  99         void timerCallback()
 100         {
 101             if (! position.isMouseButtonDown())
 102                 position.setValue (dshowComp.getPosition(), false);
 103         }
 104
 105     private:
 106         TextButton playButton;
 107         Slider position;
 108         DirectShowComponent& dshowComp;
 109     };
 110
 111     ScopedPointer<TransportControl> transportControl;
 112 };
 113
 114
 115 //==============================================================================
 116 class DirectShowDemo  : public Component
 117 {
 118 public:
 119     //==============================================================================
 120     DirectShowDemo()
 121         : dsComp1 (DirectShowComponent::dshowVMR7),
 122           dsComp2 (DirectShowComponent::dshowEVR)
 123     {
 124         setName ("DirectShow");
 125
 126         // add a movie component..
 127         addAndMakeVisible (&dsComp1);
 128         addAndMakeVisible (&dsComp2);
 129     }
 130
 131     ~DirectShowDemo()
 132     {
 133         dsComp1.setVisible (false);
 134         dsComp2.setVisible (false);
 135     }
 136
 137     void resized()
 138     {
 139         dsComp1.setBoundsRelative (0.05f, 0.05f, 0.425f, 0.9f);
 140         dsComp2.setBoundsRelative (0.525f, 0.05f, 0.425f, 0.9f);
 141     }
 142
 143 private:
 144     //==============================================================================
 145     DirectShowWindowWithFileBrowser dsComp1, dsComp2;
 146 };
 147
 148
 149 //==============================================================================
 150 Component* createDirectShowDemo()
 151 {
 152     return new DirectShowDemo();
 153 }
 154
 155 #endif