midi

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MediaControlView.cpp：源码内容
							/*****************************************************************************
 * MediaControlView.cpp: beos interface
 *****************************************************************************
 * Copyright (C) 1999, 2000, 2001 the VideoLAN team
 * $Id: b3cdf450ee04045c1d5f4364769c2513596f3fee $
 *
 * Authors: Tony Castley <tony@castley.net>
 *          Stephan Aßmus <stippi@yellowbites.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/
/* System headers */
#include <InterfaceKit.h>
#include <AppKit.h>
#include <String.h>
/* VLC headers */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_interface.h>
extern "C"
{
  #include <audio_output.h>
}
/* BeOS interface headers */
#include "Bitmaps.h"
#include "DrawingTidbits.h"
#include "InterfaceWindow.h"
#include "MsgVals.h"
#include "TransportButton.h"
#include "ListViews.h"
#include "MediaControlView.h"
#define BORDER_INSET 6.0
#define MIN_SPACE 4.0
#define SPEAKER_SLIDER_DIST 6.0
#define VOLUME_MIN_WIDTH 70.0
#define DIM_LEVEL 0.4
#define VOLUME_SLIDER_LAYOUT_WEIGHT 2.0
#define SEEK_SLIDER_KNOB_WIDTH 8.0
// slider colors are hardcoded here, because that's just
// what they currently are within those bitmaps
const rgb_color kGreen = (rgb_color){ 152, 203, 152, 255 };
const rgb_color kGreenShadow = (rgb_color){ 102, 152, 102, 255 };
const rgb_color kBackground = (rgb_color){ 216, 216, 216, 255 };
const rgb_color kSeekGreen = (rgb_color){ 171, 221, 161, 255 };
const rgb_color kSeekGreenShadow = (rgb_color){ 144, 186, 136, 255 };
const rgb_color kSeekRed = (rgb_color){ 255, 0, 0, 255 };
const rgb_color kSeekRedLight = (rgb_color){ 255, 152, 152, 255 };
const rgb_color kSeekRedShadow = (rgb_color){ 178, 0, 0, 255 };
#define DISABLED_SEEK_MESSAGE _("Drop files to play")
#define SEEKSLIDER_RANGE 2048
enum
{
    MSG_REWIND                = 'rwnd',
    MSG_FORWARD                = 'frwd',
    MSG_SKIP_BACKWARDS        = 'skpb',
    MSG_SKIP_FORWARD        = 'skpf',
};
// constructor
MediaControlView::MediaControlView( intf_thread_t * _p_intf, BRect frame)
    : BBox(frame, NULL, B_FOLLOW_NONE, B_WILL_DRAW | B_FRAME_EVENTS | B_PULSE_NEEDED,
           B_PLAIN_BORDER),
      p_intf( _p_intf ),
      fCurrentRate(INPUT_RATE_DEFAULT),
      fCurrentStatus(-1),
      fBottomControlHeight(0.0),
      fIsEnabled( true )
{
    BRect frame(0.0, 0.0, 10.0, 10.0);
    
    // Seek Slider
    fSeekSlider = new SeekSlider( p_intf, frame, "seek slider", this );
    fSeekSlider->SetValue(0);
    fSeekSlider->ResizeToPreferred();
    AddChild( fSeekSlider );
    // Buttons
    // Skip Back
    frame.SetRightBottom(kSkipButtonSize);
    fBottomControlHeight = kRewindBitmapHeight - 1.0;
    fSkipBack = new TransportButton(frame, B_EMPTY_STRING,
                                    kSkipBackBitmapBits,
                                    kPressedSkipBackBitmapBits,
                                    kDisabledSkipBackBitmapBits,
                                    new BMessage(MSG_SKIP_BACKWARDS));
    AddChild( fSkipBack );
    // Play Pause
    frame.SetRightBottom(kPlayButtonSize);
    if (fBottomControlHeight < kPlayPauseBitmapHeight - 1.0)
        fBottomControlHeight = kPlayPauseBitmapHeight - 1.0;
    fPlayPause = new PlayPauseButton(frame, B_EMPTY_STRING,
                                     kPlayButtonBitmapBits,
                                     kPressedPlayButtonBitmapBits,
                                     kDisabledPlayButtonBitmapBits,
                                     kPlayingPlayButtonBitmapBits,
                                     kPressedPlayingPlayButtonBitmapBits,
                                     kPausedPlayButtonBitmapBits,
                                     kPressedPausedPlayButtonBitmapBits,
                                     new BMessage(START_PLAYBACK));
    AddChild( fPlayPause );
    // Skip Foward
    frame.SetRightBottom(kSkipButtonSize);
    fSkipForward = new TransportButton(frame, B_EMPTY_STRING,
                                       kSkipForwardBitmapBits,
                                       kPressedSkipForwardBitmapBits,
                                       kDisabledSkipForwardBitmapBits,
                                       new BMessage(MSG_SKIP_FORWARD));
    AddChild( fSkipForward );
    // Forward
    fForward = new TransportButton(frame, B_EMPTY_STRING,
                                   kForwardBitmapBits,
                                   kPressedForwardBitmapBits,
                                   kDisabledForwardBitmapBits,
                                   new BMessage(MSG_FORWARD));
//    AddChild( fForward );
    // Rewind
    fRewind = new TransportButton(frame, B_EMPTY_STRING,
                                  kRewindBitmapBits,
                                  kPressedRewindBitmapBits,
                                  kDisabledRewindBitmapBits,
                                  new BMessage(MSG_REWIND));
//    AddChild( fRewind );
    // Stop
    frame.SetRightBottom(kStopButtonSize);
    if (fBottomControlHeight < kStopBitmapHeight - 1.0)
        fBottomControlHeight = kStopBitmapHeight - 1.0;
    fStop = new TransportButton(frame, B_EMPTY_STRING,
                                kStopButtonBitmapBits,
                                kPressedStopButtonBitmapBits,
                                kDisabledStopButtonBitmapBits,
                                new BMessage(STOP_PLAYBACK));
    AddChild( fStop );
    // Mute
    frame.SetRightBottom(kSpeakerButtonSize);
    if (fBottomControlHeight < kSpeakerIconBitmapHeight - 1.0)
        fBottomControlHeight = kSpeakerIconBitmapHeight - 1.0;
    fMute = new TransportButton(frame, B_EMPTY_STRING,
                                kSpeakerIconBits,
                                kPressedSpeakerIconBits,
                                kSpeakerIconBits,
                                new BMessage(VOLUME_MUTE));
    AddChild( fMute );
    // Volume Slider
    fVolumeSlider = new VolumeSlider(BRect(0.0, 0.0, VOLUME_MIN_WIDTH,
                                           kVolumeSliderBitmapHeight - 1.0),
                                     "volume slider", 1, AOUT_VOLUME_MAX,
                                     new BMessage(VOLUME_CHG));
    fVolumeSlider->SetValue( config_GetInt( p_intf, "volume" ) );
    AddChild( fVolumeSlider );
    
    // Position Info View
    fPositionInfo = new PositionInfoView(BRect(0.0, 0.0, 10.0, 10.0), "led",
                                         p_intf);
    fPositionInfo->ResizeToPreferred();
    AddChild( fPositionInfo );
}
// destructor
MediaControlView::~MediaControlView()
{
}
// AttachedToWindow
void
MediaControlView::AttachedToWindow()
{
    // we are now a valid BHandler
    fRewind->SetTarget(this);
    fForward->SetTarget(this);
    fSkipBack->SetTarget(this);
    fSkipForward->SetTarget(this);
    fVolumeSlider->SetTarget(Window());
    BRect r(_MinFrame());
    if (BMenuBar* menuBar = Window()->KeyMenuBar()) {
        float width, height;
        menuBar->GetPreferredSize(&width, &height);
//        r.bottom += menuBar->Bounds().Height();
        r.bottom += height;
        // see that our calculated minimal width is not smaller than what
        // the menubar can be
        width -= r.Width();
        if (width > 0.0)
            r.right += width;
    }
    Window()->SetSizeLimits(r.Width(), r.Width() * 1.8, r.Height(), r.Height() * 1.3);
    if (!Window()->Bounds().Contains(r))
        Window()->ResizeTo(r.Width(), r.Height());
    else
        FrameResized(Bounds().Width(), Bounds().Height());
    // get pulse message every two frames
    Window()->SetPulseRate(80000);
}
// FrameResized
void
MediaControlView::FrameResized(float width, float height)
{
    BRect r(Bounds());
    // make sure we don't leave dirty pixels
    // (B_FULL_UPDATE_ON_RESIZE == annoying flicker -> this is smarter)
    if (fOldBounds.Width() < r.Width())
        Invalidate(BRect(fOldBounds.right, fOldBounds.top + 1.0,
                         fOldBounds.right, fOldBounds.bottom - 1.0));
    else
        Invalidate(BRect(r.right, r.top + 1.0,
                         r.right, r.bottom - 1.0));
    if (fOldBounds.Height() < r.Height())
        Invalidate(BRect(fOldBounds.left + 1.0, fOldBounds.bottom,
                         fOldBounds.right - 1.0, fOldBounds.bottom));
    else
        Invalidate(BRect(r.left + 1.0, r.bottom,
                         r.right - 1.0, r.bottom));
    // remember for next time
    fOldBounds = r;
    // layout controls
    r.InsetBy(BORDER_INSET, BORDER_INSET);
    _LayoutControls(r);
}
// GetPreferredSize
void
MediaControlView::GetPreferredSize(float* width, float* height)
{
    if (width && height)
    {
        BRect r(_MinFrame());
        *width = r.Width();
        *height = r.Height();
    }
}
// MessageReceived
void
MediaControlView::MessageReceived(BMessage* message)
{
    switch (message->what)
    {
        case MSG_REWIND:
            break;
        case MSG_FORWARD:
            break;
        case MSG_SKIP_BACKWARDS:
            Window()->PostMessage(NAVIGATE_PREV);
            break;
        case MSG_SKIP_FORWARD:
            Window()->PostMessage(NAVIGATE_NEXT);
            break;
        default:
            BBox::MessageReceived(message);
            break;
    }
}
// Pulse
void
MediaControlView::Pulse()
{
    InterfaceWindow* window = dynamic_cast<InterfaceWindow*>(Window());
    if (window && window->IsStopped())
            fPlayPause->SetStopped();
    unsigned short i_volume;
    aout_VolumeGet( p_intf, (audio_volume_t*)&i_volume );
    fVolumeSlider->SetValue( i_volume );
}
// SetProgress
void
MediaControlView::SetProgress( float position )
{
    fSeekSlider->SetPosition( position );
}
// SetStatus
void
MediaControlView::SetStatus(int status, int rate)
{
    // we need to set the button status periodically
    // (even if it is the same) to get a blinking button
    fCurrentStatus = status;
    switch( status )
    {
        case PLAYING_S:
        case OPENNING_S:
            fPlayPause->SetPlaying();
            break;
        case PAUSE_S:
            fPlayPause->SetPaused();
            break;
        default:
            fPlayPause->SetStopped();
            break;
    }
    if (rate != fCurrentRate)
    {
        fCurrentRate = rate;
        if ( rate < INPUT_RATE_DEFAULT )
        {
            // TODO: ...
        }
    }
}
// SetEnabled
void
MediaControlView::SetEnabled(bool enabled)
{
    if( ( enabled && fIsEnabled ) ||
        ( !enabled && !fIsEnabled ) )
    {
        /* do not redraw if it is not necessary */
        return;
    }
 
    if( LockLooper() )
    {
        fSkipBack->SetEnabled( enabled );
        fPlayPause->SetEnabled( enabled );
        fSkipForward->SetEnabled( enabled );
        fStop->SetEnabled( enabled );
        fMute->SetEnabled( enabled );
        fVolumeSlider->SetEnabled( enabled );
        fSeekSlider->SetEnabled( enabled );
        fRewind->SetEnabled( enabled );
        fForward->SetEnabled( enabled );
        UnlockLooper();
        fIsEnabled = enabled;
    }
}
// SetAudioEnabled
void
MediaControlView::SetAudioEnabled(bool enabled)
{
    fMute->SetEnabled(enabled);
    fVolumeSlider->SetEnabled(enabled);
}
// GetVolume
uint32
MediaControlView::GetVolume() const
{
    return fVolumeSlider->Value();
}
// SetSkippable
void
MediaControlView::SetSkippable(bool backward, bool forward)
{
    fSkipBack->SetEnabled(backward);
    fSkipForward->SetEnabled(forward);
}
// SetMuted
void
MediaControlView::SetMuted(bool mute)
{
    fVolumeSlider->SetMuted(mute);
}
// _LayoutControls
void
MediaControlView::_LayoutControls(BRect frame) const
{
    // seek slider
    BRect r(frame);
    // calculate absolutly minimal width
    float minWidth = fSkipBack->Bounds().Width();
//    minWidth += fRewind->Bounds().Width();
    minWidth += fStop->Bounds().Width();
    minWidth += fPlayPause->Bounds().Width();
//    minWidth += fForward->Bounds().Width();
    minWidth += fSkipForward->Bounds().Width();
    minWidth += fMute->Bounds().Width();
    minWidth += VOLUME_MIN_WIDTH;
    
    // layout time slider and info view
    float width, height;
    fPositionInfo->GetBigPreferredSize( &width, &height );
    float ratio = width / height;
    width = r.Height() * ratio;
    if (frame.Width() - minWidth - MIN_SPACE >= width
              && frame.Height() >= height)
    {
        r.right = r.left + width;
        fPositionInfo->SetMode(PositionInfoView::MODE_BIG);
        _LayoutControl(fPositionInfo, r, true, true);
        frame.left = r.right + MIN_SPACE;
        r.left = frame.left;
        r.right = frame.right;
    //    r.bottom = r.top + r.Height() / 2.0 - MIN_SPACE / 2.0;
        r.bottom = r.top + fSeekSlider->Bounds().Height();
        _LayoutControl(fSeekSlider, r, true);
    }
    else
    {
        fPositionInfo->GetPreferredSize( &width, &height );
        fPositionInfo->SetMode(PositionInfoView::MODE_SMALL);
        fPositionInfo->ResizeTo(width, height);
        r.bottom = r.top + r.Height() / 2.0 - MIN_SPACE / 2.0;
        r.right = r.left + fPositionInfo->Bounds().Width();
        _LayoutControl(fPositionInfo, r, true );
        r.left = r.right + MIN_SPACE;
        r.right = frame.right;
        _LayoutControl(fSeekSlider, r, true);
    }
    float currentWidth = frame.Width();
    float space = (currentWidth - minWidth) / 6.0;//8.0;
    // apply weighting
    space = MIN_SPACE + (space - MIN_SPACE) / VOLUME_SLIDER_LAYOUT_WEIGHT;
    // layout controls with "space" inbetween
    r.left = frame.left;
    r.top = r.bottom + MIN_SPACE + 1.0;
    r.bottom = frame.bottom;
    // skip back
    r.right = r.left + fSkipBack->Bounds().Width();
    _LayoutControl(fSkipBack, r);
    // rewind
//    r.left = r.right + space;
//    r.right = r.left + fRewind->Bounds().Width();
//    _LayoutControl(fRewind, r);
    // stop
    r.left = r.right + space;
    r.right = r.left + fStop->Bounds().Width();
    _LayoutControl(fStop, r);
    // play/pause
    r.left = r.right + space;
    r.right = r.left + fPlayPause->Bounds().Width();
    _LayoutControl(fPlayPause, r);
    // forward
//    r.left = r.right + space;
//    r.right = r.left + fForward->Bounds().Width();
//    _LayoutControl(fForward, r);
    // skip forward
    r.left = r.right + space;
    r.right = r.left + fSkipForward->Bounds().Width();
    _LayoutControl(fSkipForward, r);
    // speaker icon
    r.left = r.right + space + space;
    r.right = r.left + fMute->Bounds().Width();
    _LayoutControl(fMute, r);
    // volume slider
    r.left = r.right + SPEAKER_SLIDER_DIST; // keep speaker icon and volume slider attached
    r.right = frame.right;
    _LayoutControl(fVolumeSlider, r, true);
}
// _MinFrame
BRect
MediaControlView::_MinFrame() const
{
    // add up width of controls along bottom (seek slider will likely adopt)
    float minWidth = 2 * BORDER_INSET;
    minWidth += fSkipBack->Bounds().Width() + MIN_SPACE;
//    minWidth += fRewind->Bounds().Width() + MIN_SPACE;
    minWidth += fStop->Bounds().Width() + MIN_SPACE;
    minWidth += fPlayPause->Bounds().Width() + MIN_SPACE;
//    minWidth += fForward->Bounds().Width() + MIN_SPACE;
    minWidth += fSkipForward->Bounds().Width() + MIN_SPACE + MIN_SPACE;
    minWidth += fMute->Bounds().Width() + SPEAKER_SLIDER_DIST;
    minWidth += VOLUME_MIN_WIDTH;
    // add up height of seek slider and heighest control on bottom
    float minHeight = 2 * BORDER_INSET;
    minHeight += fSeekSlider->Bounds().Height() + MIN_SPACE + MIN_SPACE / 2.0;
    minHeight += fBottomControlHeight;
    return BRect(0.0, 0.0, minWidth - 1.0, minHeight - 1.0);
}
// _LayoutControl
void
MediaControlView::_LayoutControl(BView* view, BRect frame,
                                 bool resizeWidth, bool resizeHeight) const
{
    if (!resizeHeight)
        // center vertically
        frame.top = (frame.top + frame.bottom) / 2.0 - view->Bounds().Height() / 2.0;
    if (!resizeWidth)
        //center horizontally
        frame.left = (frame.left + frame.right) / 2.0 - view->Bounds().Width() / 2.0;
    view->MoveTo(frame.LeftTop());
    float width = resizeWidth ? frame.Width() : view->Bounds().Width();
    float height = resizeHeight ? frame.Height() : view->Bounds().Height();
    if (resizeWidth || resizeHeight)
        view->ResizeTo(width, height);
}
/*****************************************************************************
 * SeekSlider
 *****************************************************************************/
SeekSlider::SeekSlider( intf_thread_t * _p_intf,
                        BRect frame, const char* name, MediaControlView *owner )
    : BControl(frame, name, NULL, NULL, B_FOLLOW_NONE,
               B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE),
      p_intf(_p_intf),
      fOwner(owner),
      fTracking(false)
{
    BFont font(be_plain_font);
    font.SetSize(9.0);
    SetFont(&font);
}
SeekSlider::~SeekSlider()
{
}
/*****************************************************************************
 * VolumeSlider::AttachedToWindow
 *****************************************************************************/
void
SeekSlider::AttachedToWindow()
{
    BControl::AttachedToWindow();
    SetViewColor(B_TRANSPARENT_32_BIT);
}
/*****************************************************************************
 * VolumeSlider::Draw
 *****************************************************************************/
void
SeekSlider::Draw(BRect updateRect)
{
    BRect r(Bounds());
    float knobWidth2 = SEEK_SLIDER_KNOB_WIDTH / 2.0;
    float sliderStart = (r.left + knobWidth2);
    float sliderEnd = (r.right - knobWidth2);
    float knobPos = sliderStart
                    + floorf((sliderEnd - sliderStart - 1.0) * Value()
                    / SEEKSLIDER_RANGE);
    // draw both sides (the original from Be doesn't seem
    // to make a difference for enabled/disabled state)
//    DrawBitmapAsync(fLeftSideBits, r.LeftTop());
//    DrawBitmapAsync(fRightSideBits, BPoint(sliderEnd + 1.0, r.top));
    // colors for the slider area between the two bitmaps
    rgb_color background = kBackground;//ui_color(B_PANEL_BACKGROUND_COLOR);
    rgb_color shadow = tint_color(background, B_DARKEN_2_TINT);
    rgb_color softShadow = tint_color(background, B_DARKEN_1_TINT);
    rgb_color darkShadow = tint_color(background, B_DARKEN_4_TINT);
    rgb_color midShadow = tint_color(background, B_DARKEN_3_TINT);
    rgb_color light = tint_color(background, B_LIGHTEN_MAX_TINT);
    rgb_color softLight = tint_color(background, B_LIGHTEN_1_TINT);
    rgb_color green = kSeekGreen;
    rgb_color greenShadow = kSeekGreenShadow;
    rgb_color black = kBlack;
    rgb_color dotGrey = midShadow;
    rgb_color dotGreen = greenShadow;
    // draw frame
    _StrokeFrame(r, softShadow, softShadow, softLight, softLight);
    r.InsetBy(1.0, 1.0);
    _StrokeFrame(r, black, black, light, light);
    if (IsEnabled())
    {
        r.InsetBy(1.0, 1.0);
        // inner shadow
        _StrokeFrame(r, greenShadow, greenShadow, green, green);
        r.top++;
        r.left++;
        _StrokeFrame(r, greenShadow, greenShadow, green, green);
        // inside area
        r.InsetBy(1.0, 1.0);
        SetHighColor(green);
        FillRect(r);
        // dots
        int32 dotCount = (int32)(r.Width() / 6.0);
        BPoint dotPos;
        dotPos.y = r.top + 2.0;
        SetHighColor(dotGreen);
        for (int32 i = 0; i < dotCount; i++)
        {
            dotPos.x = sliderStart + i * 6.0 + 5.0;
            StrokeLine(dotPos, BPoint(dotPos.x, dotPos.y + 6.0));
        }
        // slider handle
        r.top -= 4.0;
        r.bottom += 3.0;
        r.left = knobPos - knobWidth2;
        r.right = knobPos + knobWidth2;
        // black outline
        float handleBottomSize = 2.0;
        float handleArrowSize = 6.0;
        BeginLineArray(10);
            // upper handle
            AddLine(BPoint(r.left, r.top + handleBottomSize),
                    BPoint(r.left, r.top), black);
            AddLine(BPoint(r.left + 1.0, r.top),
                    BPoint(r.right, r.top), black);
            AddLine(BPoint(r.right, r.top + 1.0),
                    BPoint(r.right, r.top + handleBottomSize), black);
            AddLine(BPoint(r.right - 1.0, r.top + handleBottomSize + 1.0),
                    BPoint(knobPos, r.top + handleArrowSize), black);
            AddLine(BPoint(knobPos - 1.0, r.top + handleArrowSize - 1.0),
                    BPoint(r.left + 1.0, r.top + handleBottomSize + 1.0), black);
            // lower handle
            AddLine(BPoint(r.left, r.bottom),
                    BPoint(r.left, r.bottom - handleBottomSize), black);
            AddLine(BPoint(r.left + 1.0, r.bottom - handleBottomSize - 1.0),
                    BPoint(knobPos, r.bottom - handleArrowSize), black);
            AddLine(BPoint(knobPos + 1.0, r.bottom - handleArrowSize + 1.0),
                    BPoint(r.right, r.bottom - handleBottomSize), black);
            AddLine(BPoint(r.right, r.bottom - handleBottomSize + 1.0),
                    BPoint(r.right, r.bottom), black);
            AddLine(BPoint(r.right - 1.0, r.bottom),
                    BPoint(r.left + 1.0, r.bottom), black);
        EndLineArray();
        // inner red light and shadow lines
        r.InsetBy(1.0, 1.0);
        handleBottomSize--;
        handleArrowSize -= 2.0;
        BeginLineArray(10);
            // upper handle
            AddLine(BPoint(r.left, r.top + handleBottomSize),
                    BPoint(r.left, r.top), kSeekRedLight);
            AddLine(BPoint(r.left + 1.0, r.top),
                    BPoint(r.right, r.top), kSeekRedLight);
            AddLine(BPoint(r.right, r.top + 1.0),
                    BPoint(r.right, r.top + handleBottomSize), kSeekRedShadow);
            AddLine(BPoint(r.right - 1.0, r.top + handleBottomSize + 1.0),
                    BPoint(knobPos, r.top + handleArrowSize), kSeekRedShadow);
            AddLine(BPoint(knobPos - 1.0, r.top + handleArrowSize - 1.0),
                    BPoint(r.left + 1.0, r.top + handleBottomSize + 1.0), kSeekRedLight);
            // lower handle
            AddLine(BPoint(r.left, r.bottom),
                    BPoint(r.left, r.bottom - handleBottomSize), kSeekRedLight);
            AddLine(BPoint(r.left + 1.0, r.bottom - handleBottomSize - 1.0),
                    BPoint(knobPos, r.bottom - handleArrowSize), kSeekRedLight);
            AddLine(BPoint(knobPos + 1.0, r.bottom - handleArrowSize + 1.0),
                    BPoint(r.right, r.bottom - handleBottomSize), kSeekRedShadow);
            AddLine(BPoint(r.right, r.bottom - handleBottomSize + 1.0),
                    BPoint(r.right, r.bottom), kSeekRedShadow);
            AddLine(BPoint(r.right - 1.0, r.bottom),
                    BPoint(r.left + 1.0, r.bottom), kSeekRedShadow);
        EndLineArray();
        // fill rest of handles with red
        SetHighColor(kSeekRed);
        r.InsetBy(1.0, 1.0);
        handleArrowSize -= 2.0;
        BPoint arrow[3];
        // upper handle arrow
        arrow[0].x = r.left;
        arrow[0].y = r.top;
        arrow[1].x = r.right;
        arrow[1].y = r.top;
        arrow[2].x = knobPos;
        arrow[2].y = r.top + handleArrowSize;
        FillPolygon(arrow, 3);
        // lower handle arrow
        arrow[0].x = r.left;
        arrow[0].y = r.bottom;
        arrow[1].x = r.right;
        arrow[1].y = r.bottom;
        arrow[2].x = knobPos;
        arrow[2].y = r.bottom - handleArrowSize;
        FillPolygon(arrow, 3);
    }
    else
    {
        r.InsetBy(1.0, 1.0);
        _StrokeFrame(r, darkShadow, darkShadow, darkShadow, darkShadow);
        r.InsetBy(1.0, 1.0);
        _StrokeFrame(r, darkShadow, darkShadow, darkShadow, darkShadow);
        r.InsetBy(1.0, 1.0);
        SetHighColor(darkShadow);
        SetLowColor(shadow);
        // stripes
        float width = floorf(StringWidth(DISABLED_SEEK_MESSAGE));
        float textPos = r.left + r.Width() / 2.0 - width / 2.0;
        pattern stripes = {{ 0xc7, 0x8f, 0x1f, 0x3e, 0x7c, 0xf8, 0xf1, 0xe3 }};
        BRect stripesRect(r);
        stripesRect.right = textPos - 5.0;
        FillRect(stripesRect, stripes);
        stripesRect.left = textPos + width + 3.0;
        stripesRect.right = r.right;
        FillRect(stripesRect, stripes);
        // info text
        r.left = textPos - 4.0;
        r.right = textPos + width + 2.0;
        FillRect(r);
        SetHighColor(shadow);
        SetLowColor(darkShadow);
        font_height fh;
        GetFontHeight(&fh);
        DrawString(DISABLED_SEEK_MESSAGE, BPoint(textPos, r.top + ceilf(fh.ascent) - 1.0));
    }
}
/*****************************************************************************
 * SeekSlider::MouseDown
 *****************************************************************************/
void
SeekSlider::MouseDown(BPoint where)
{
    if (IsEnabled() && Bounds().Contains(where))
    {
        SetValue(_ValueFor(where.x));
        fTracking = true;
        SetMouseEventMask(B_POINTER_EVENTS, B_LOCK_WINDOW_FOCUS);
    }
}
/*****************************************************************************
 * SeekSlider::MouseMoved
 *****************************************************************************/
void
SeekSlider::MouseMoved(BPoint where, uint32 code, const BMessage* dragMessage)
{
    if (fTracking)
    {
        SetValue(_ValueFor(where.x));
    }
}
/*****************************************************************************
 * SeekSlider::MouseUp
 *****************************************************************************/
void
SeekSlider::MouseUp(BPoint where)
{
    if (fTracking)
    {
        fTracking = false;
        input_thread_t * p_input;
        p_input = (input_thread_t *)
            vlc_object_find( p_intf, VLC_OBJECT_INPUT, FIND_ANYWHERE );
        if( p_input )
        {
            var_SetFloat( p_input, "position",
                          (float) Value() / SEEKSLIDER_RANGE );
            vlc_object_release( p_input );
        }
    }
}
/*****************************************************************************
 * SeekSlider::ResizeToPreferred
 *****************************************************************************/
void
SeekSlider::ResizeToPreferred()
{
    float width = 15.0 + StringWidth(DISABLED_SEEK_MESSAGE) + 15.0;
    ResizeTo(width, 17.0);
}
/*****************************************************************************
 * SeekSlider::SetPosition
 *****************************************************************************/
void
SeekSlider::SetPosition(float position)
{
    if ( LockLooper() )
    {
        if( !fTracking )
        {
            SetValue( SEEKSLIDER_RANGE * position );
        }
        UnlockLooper();
    }
}
/*****************************************************************************
 * SeekSlider::_ValueFor
 *****************************************************************************/
int32
SeekSlider::_ValueFor(float xPos) const
{
    BRect r(Bounds());
    float knobWidth2 = SEEK_SLIDER_KNOB_WIDTH / 2.0;
    float sliderStart = (r.left + knobWidth2);
    float sliderEnd = (r.right - knobWidth2);
    int32 value =  (int32)(((xPos - sliderStart) * SEEKSLIDER_RANGE)
                  / (sliderEnd - sliderStart - 1.0));
    if (value < 0)
        value = 0;
    if (value > SEEKSLIDER_RANGE)
        value = SEEKSLIDER_RANGE;
    return value;
}
/*****************************************************************************
 * SeekSlider::_StrokeFrame
 *****************************************************************************/
void
SeekSlider::_StrokeFrame(BRect r, rgb_color left, rgb_color top,
                         rgb_color right, rgb_color bottom)
{
    BeginLineArray(4);
        AddLine(BPoint(r.left, r.bottom), BPoint(r.left, r.top), left);
        AddLine(BPoint(r.left + 1.0, r.top), BPoint(r.right, r.top), top);
        AddLine(BPoint(r.right, r.top + 1.0), BPoint(r.right, r.bottom), right);
        AddLine(BPoint(r.right - 1.0, r.bottom), BPoint(r.left + 1.0, r.bottom), bottom);
    EndLineArray();
}
/*****************************************************************************
 * VolumeSlider
 *****************************************************************************/
VolumeSlider::VolumeSlider(BRect frame, const char* name, int32 minValue, int32 maxValue,
                           BMessage* message, BHandler* target)
    : BControl(frame, name, NULL, message, B_FOLLOW_NONE,
               B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE),
      fLeftSideBits(NULL),
      fRightSideBits(NULL),
      fKnobBits(NULL),
      fTracking(false),
      fMuted(false),
      fMinValue(minValue),
      fMaxValue(maxValue)
{
    SetTarget(target);
    // create bitmaps
    BRect r(BPoint(0.0, 0.0), kVolumeSliderBitmapSize);
    fLeftSideBits = new BBitmap(r, B_CMAP8);
    fRightSideBits = new BBitmap(r, B_CMAP8);
    r.Set(0.0, 0.0, kVolumeSliderKnobBitmapSize.x, kVolumeSliderKnobBitmapSize.y);
    fKnobBits = new BBitmap(r, B_CMAP8);
    _MakeBitmaps();
}
/*****************************************************************************
 * VolumeSlider destructor
 *****************************************************************************/
VolumeSlider::~VolumeSlider()
{
    delete fLeftSideBits;
    delete fRightSideBits;
    delete fKnobBits;
}
/*****************************************************************************
 * VolumeSlider::AttachedToWindow
 *****************************************************************************/
void
VolumeSlider::AttachedToWindow()
{
    BControl::AttachedToWindow();
    SetViewColor(B_TRANSPARENT_32_BIT);
}
/*****************************************************************************
 * VolumeSlider::SetValue
 *****************************************************************************/
void
VolumeSlider::SetValue(int32 value)
{
    if (value != Value())
    {
        BControl::SetValue(value);
        Invoke();
    }
}
/*****************************************************************************
 * VolumeSlider::SetEnabled
 *****************************************************************************/
void
VolumeSlider::SetEnabled(bool enable)
{
    if (enable != IsEnabled())
    {
        BControl::SetEnabled(enable);
        _MakeBitmaps();
        Invalidate();
    }
}
/*****************************************************************************
 * VolumeSlider::Draw
 *****************************************************************************/
void
VolumeSlider::Draw(BRect updateRect)
{
    if (IsValid())
    {
        BRect r(Bounds());
        float sliderSideWidth = kVolumeSliderBitmapWidth;
        float sliderStart = (r.left + sliderSideWidth);
        float sliderEnd = (r.right - sliderSideWidth);
        float knobPos = sliderStart
                        + (sliderEnd - sliderStart - 1.0) * (Value() - fMinValue)
                        / (fMaxValue - fMinValue);
        // draw both sides (the original from Be doesn't seem
        // to make a difference for enabled/disabled state)
        DrawBitmapAsync(fLeftSideBits, r.LeftTop());
        DrawBitmapAsync(fRightSideBits, BPoint(sliderEnd + 1.0, r.top));
        // colors for the slider area between the two bitmaps
        rgb_color background = kBackground;//ui_color(B_PANEL_BACKGROUND_COLOR);
        rgb_color shadow = tint_color(background, B_DARKEN_2_TINT);
        rgb_color softShadow = tint_color(background, B_DARKEN_1_TINT);
        rgb_color darkShadow = tint_color(background, B_DARKEN_4_TINT);
        rgb_color midShadow = tint_color(background, B_DARKEN_3_TINT);
        rgb_color light = tint_color(background, B_LIGHTEN_MAX_TINT);
        rgb_color softLight = tint_color(background, B_LIGHTEN_1_TINT);
        rgb_color green = kGreen;
        rgb_color greenShadow = kGreenShadow;
        rgb_color black = kBlack;
        rgb_color dotGrey = midShadow;
        rgb_color dotGreen = greenShadow;
        // make dimmed version of colors if we're disabled
        if (!IsEnabled())
        {
            shadow = (rgb_color){ 200, 200, 200, 255 };
            softShadow = dimmed_color_cmap8(softShadow, background, DIM_LEVEL);
            darkShadow = dimmed_color_cmap8(darkShadow, background, DIM_LEVEL);
            midShadow = shadow;
            light = dimmed_color_cmap8(light, background, DIM_LEVEL);
            softLight = dimmed_color_cmap8(softLight, background, DIM_LEVEL);
            green = dimmed_color_cmap8(green, background, DIM_LEVEL);
            greenShadow = dimmed_color_cmap8(greenShadow, background, DIM_LEVEL);
            black = dimmed_color_cmap8(black, background, DIM_LEVEL);
            dotGreen = dotGrey;
        }
        else if (fMuted)
        {
            green = tint_color(kBackground, B_DARKEN_3_TINT);
            greenShadow = tint_color(kBackground, B_DARKEN_4_TINT);
            dotGreen = greenShadow;
        }
        // draw slider edges between bitmaps
        BeginLineArray(7);
            AddLine(BPoint(sliderStart, r.top),
                    BPoint(sliderEnd, r.top), softShadow);
            AddLine(BPoint(sliderStart, r.bottom),
                    BPoint(sliderEnd, r.bottom), softLight);
            r.InsetBy(0.0, 1.0);
            AddLine(BPoint(sliderStart, r.top),
                    BPoint(sliderEnd, r.top), black);
            AddLine(BPoint(sliderStart, r.bottom),
                    BPoint(sliderEnd, r.bottom), light);
            r.top++;
            AddLine(BPoint(sliderStart, r.top),
                    BPoint(knobPos, r.top), greenShadow);
            AddLine(BPoint(knobPos, r.top),
                    BPoint(sliderEnd, r.top), midShadow);
            r.top++;
            AddLine(BPoint(sliderStart, r.top),
                    BPoint(knobPos, r.top), greenShadow);
        EndLineArray();
        // fill rest inside of slider
        r.InsetBy(0.0, 1.0);
        r.left = sliderStart;
        r.right = knobPos;
        SetHighColor(green);
        FillRect(r, B_SOLID_HIGH);
        r.left = knobPos + 1.0;
        r.right = sliderEnd;
        r.top -= 1.0;
        SetHighColor(shadow);
        FillRect(r, B_SOLID_HIGH);
        // draw little dots inside
        int32 dotCount = (int32)((sliderEnd - sliderStart) / 5.0);
        BPoint dotPos;
        dotPos.y = r.top + 4.0;
        for (int32 i = 0; i < dotCount; i++)
        {
            dotPos.x = sliderStart + i * 5.0 + 4.0;
            SetHighColor(dotPos.x < knobPos ? dotGreen : dotGrey);
            StrokeLine(dotPos, BPoint(dotPos.x, dotPos.y + 1.0));
        }
        // draw knob
        r.top -= 1.0;
        SetDrawingMode(B_OP_OVER); // part of knob is transparent
        DrawBitmapAsync(fKnobBits, BPoint(knobPos - kVolumeSliderKnobWidth / 2, r.top));
    }
}
/*****************************************************************************
 * VolumeSlider::MouseDown
 *****************************************************************************/
void
VolumeSlider::MouseDown(BPoint where)
{
    if (Bounds().Contains(where) && IsEnabled())
    {
        fTracking = true;
        SetValue(_ValueFor(where.x));
        SetMouseEventMask(B_POINTER_EVENTS, B_LOCK_WINDOW_FOCUS);
    }
}
/*****************************************************************************
 * VolumeSlider::MouseMoved
 *****************************************************************************/
void
VolumeSlider::MouseMoved(BPoint where, uint32 transit, const BMessage* dragMessage)
{
    if (fTracking)
        SetValue(_ValueFor(where.x));
}
/*****************************************************************************
 * VolumeSlider::MouseUp
 *****************************************************************************/
void
VolumeSlider::MouseUp(BPoint where)
{
    fTracking = false;
}
/*****************************************************************************
 * VolumeSlider::IsValid
 *****************************************************************************/
bool
VolumeSlider::IsValid() const
{
    return (fLeftSideBits && fLeftSideBits->IsValid()
            && fRightSideBits && fRightSideBits->IsValid()
            && fKnobBits && fKnobBits->IsValid());
}
/*****************************************************************************
 * VolumeSlider::SetMuted
 *****************************************************************************/
void
VolumeSlider::SetMuted(bool mute)
{
    if (mute != fMuted)
    {
        fMuted = mute;
        _MakeBitmaps();
        Invalidate();
    }
}
/*****************************************************************************
 * VolumeSlider::_MakeBitmaps
 *****************************************************************************/
void
VolumeSlider::_MakeBitmaps()
{
    if (IsValid())
    {
        // left side of slider
        memcpy(fLeftSideBits->Bits(), kVolumeSliderLeftBitmapBits,
               fLeftSideBits->BitsLength());
        // right side of slider
        memcpy(fRightSideBits->Bits(), kVolumeSliderRightBits,
               fRightSideBits->BitsLength());
        // slider knob
        int32 length = fKnobBits->BitsLength();
        memcpy(fKnobBits->Bits(), kVolumeSliderKnobBits, length);
        uint8* bits = (uint8*)fKnobBits->Bits();
        // black was used in the knob to represent transparency
        // use screen to get index for the "transarent" color used in the bitmap
        BScreen screen(B_MAIN_SCREEN_ID);
        uint8 blackIndex = screen.IndexForColor(kBlack);
        // replace black index with transparent index
        for (int32 i = 0; i < length; i++)
            if (bits[i] == blackIndex)
                bits[i] = B_TRANSPARENT_MAGIC_CMAP8;
        if (!IsEnabled())
        {
            // make ghosted versions of the bitmaps
            dim_bitmap(fLeftSideBits, kBackground, DIM_LEVEL);
            dim_bitmap(fRightSideBits, kBackground, DIM_LEVEL);
            dim_bitmap(fKnobBits, kBackground, DIM_LEVEL);
        }
        else if (fMuted)
        {
            // replace green color (and shadow) in left slider side
            bits = (uint8*)fLeftSideBits->Bits();
            length = fLeftSideBits->BitsLength();
            uint8 greenIndex = screen.IndexForColor(kGreen);
            uint8 greenShadowIndex = screen.IndexForColor(kGreenShadow);
            rgb_color shadow = tint_color(kBackground, B_DARKEN_3_TINT);
            rgb_color midShadow = tint_color(kBackground, B_DARKEN_4_TINT);
            uint8 replaceIndex = screen.IndexForColor(shadow);
            uint8 replaceShadowIndex = screen.IndexForColor(midShadow);
            for (int32 i = 0; i < length; i++)
            {
                if (bits[i] == greenIndex)
                    bits[i] = replaceIndex;
                else if (bits[i] == greenShadowIndex)
                    bits[i] = replaceShadowIndex;
            }
        }
    }
}
/*****************************************************************************
 * VolumeSlider::_ValueFor
 *****************************************************************************/
int32
VolumeSlider::_ValueFor(float xPos) const
{
    BRect r(Bounds());
    float sliderStart = (r.left + kVolumeSliderBitmapWidth);
    float sliderEnd = (r.right - kVolumeSliderBitmapWidth);
    int32 value =  fMinValue + (int32)(((xPos - sliderStart) * (fMaxValue - fMinValue))
                  / (sliderEnd - sliderStart - 1.0));
    if (value < fMinValue)
        value = fMinValue;
    if (value > fMaxValue)
        value = fMaxValue;
    return value;
}
/*****************************************************************************
 * PositionInfoView::PositionInfoView
 *****************************************************************************/
PositionInfoView::PositionInfoView( BRect frame, const char* name,
                                    intf_thread_t * p_interface )
    : BView( frame, name, B_FOLLOW_NONE,
             B_WILL_DRAW | B_PULSE_NEEDED | B_FULL_UPDATE_ON_RESIZE ),
      fMode( MODE_SMALL ),
      fCurrentFileIndex( -1 ),
      fCurrentFileSize( -1 ),
      fCurrentTitleIndex( -1 ),
      fCurrentTitleSize( -1 ),
      fCurrentChapterIndex( -1 ),
      fCurrentChapterSize( -1 ),
      fSeconds( -1 ),
      fTimeString( "-:--:--" ),
      fLastPulseUpdate( system_time() ),
      fStackedWidthCache( 0.0 ),
      fStackedHeightCache( 0.0 )
{
    p_intf = p_interface;
    SetViewColor( B_TRANSPARENT_32_BIT );
    SetLowColor( kBlack );
    SetHighColor( 0, 255, 0, 255 );
    SetFontSize( 11.0 );
}
/*****************************************************************************
 * PositionInfoView::~PositionInfoView
 *****************************************************************************/
PositionInfoView::~PositionInfoView()
{
}
/*****************************************************************************
 * PositionInfoView::Draw
 *****************************************************************************/
void
PositionInfoView::Draw( BRect updateRect )
{
    rgb_color background = ui_color( B_PANEL_BACKGROUND_COLOR );
    rgb_color shadow = tint_color( background, B_DARKEN_1_TINT );
    rgb_color darkShadow = tint_color( background, B_DARKEN_4_TINT );
    rgb_color light = tint_color( background, B_LIGHTEN_MAX_TINT );
    rgb_color softLight = tint_color( background, B_LIGHTEN_1_TINT );
    // frame
    BRect r( Bounds() );
    BeginLineArray( 8 );
        AddLine( BPoint( r.left, r.bottom ),
                 BPoint( r.left, r.top ), shadow );
        AddLine( BPoint( r.left + 1.0, r.top ),
                 BPoint( r.right, r.top ), shadow );
        AddLine( BPoint( r.right, r.top + 1.0 ),
                 BPoint( r.right, r.bottom ), softLight );
        AddLine( BPoint( r.right - 1.0, r.bottom ),
                 BPoint( r.left + 1.0, r.bottom ), softLight );
        r.InsetBy( 1.0, 1.0 );
        AddLine( BPoint( r.left, r.bottom ),
                 BPoint( r.left, r.top ), darkShadow );
        AddLine( BPoint( r.left + 1.0, r.top ),
                 BPoint( r.right, r.top ), darkShadow );
        AddLine( BPoint( r.right, r.top + 1.0 ),
                 BPoint( r.right, r.bottom ), light );
        AddLine( BPoint( r.right - 1.0, r.bottom ),
                 BPoint( r.left + 1.0, r.bottom ), light );
    EndLineArray();
    // background
    r.InsetBy( 1.0, 1.0 );
    FillRect( r, B_SOLID_LOW );
    // contents
    font_height fh;
    GetFontHeight( &fh );
    switch ( fMode )
    {
        case MODE_SMALL:
        {
            float width = StringWidth( fTimeString.String() );
            DrawString( fTimeString.String(),
                        BPoint( r.left + r.Width() / 2.0 - width / 2.0,
                                r.top + r.Height() / 2.0 + fh.ascent / 2.0 - 1.0 ) );
            break;
        }
        case MODE_BIG:
        {
            BFont font;
            GetFont( &font );
            BFont smallFont = font;
            BFont bigFont = font;
            BFont tinyFont = font;
            smallFont.SetSize( r.Height() / 5.0 );
            bigFont.SetSize( r.Height() / 3.0 );
            tinyFont.SetSize( r.Height() / 7.0 );
            float timeHeight = r.Height() / 2.5;
            float height = ( r.Height() - timeHeight ) / 3.0;
            SetFont( &tinyFont );
            SetHighColor( 0, 180, 0, 255 );
            DrawString( _("File"), BPoint( r.left + 3.0, r.top + height ) );
            DrawString( _("Title"), BPoint( r.left + 3.0, r.top + 2.0 * height ) );
            DrawString( _("Chapter"), BPoint( r.left + 3.0, r.top + 3.0 * height ) );
            SetFont( &smallFont );
            BString helper;
            SetHighColor( 0, 255, 0, 255 );
            // file
            _MakeString( helper, fCurrentFileIndex, fCurrentFileSize );
            float width = StringWidth( helper.String() );
            DrawString( helper.String(), BPoint( r.right - 3.0 - width, r.top + height ) );
            // title
            _MakeString( helper, fCurrentTitleIndex, fCurrentTitleSize );
            width = StringWidth( helper.String() );
            DrawString( helper.String(), BPoint( r.right - 3.0 - width, r.top + 2.0 * height ) );
            // chapter
            _MakeString( helper, fCurrentChapterIndex, fCurrentChapterSize );
            width = StringWidth( helper.String() );
            DrawString( helper.String(), BPoint( r.right - 3.0 - width, r.top + 3.0 * height ) );
            // time
            SetFont( &bigFont );
            width = StringWidth( fTimeString.String() );
            DrawString( fTimeString.String(),
                        BPoint( r.left + r.Width() / 2.0 - width / 2.0,
                                r.bottom - 3.0 ) );
            break;
        }
    }
}
/*****************************************************************************
 * PositionInfoView::ResizeToPreferred
 *****************************************************************************/
void
PositionInfoView::ResizeToPreferred()
{
    float width, height;
    GetPreferredSize( &width, &height );
    ResizeTo( width, height );
}
/*****************************************************************************
 * PositionInfoView::GetPreferredSize
 *****************************************************************************/
void
PositionInfoView::GetPreferredSize( float* width, float* height )
{
    if ( width && height )
    {
        *width = 5.0 + ceilf( StringWidth( "0:00:00" ) ) + 5.0;
        font_height fh;
        GetFontHeight( &fh );
        *height = 3.0 + ceilf( fh.ascent ) + 3.0;
        fStackedWidthCache = *width * 1.2;
        fStackedHeightCache = *height * 2.7;
    }
}
/*****************************************************************************
 * PositionInfoView::Pulse
 *****************************************************************************/
void
PositionInfoView::Pulse()
{
    // allow for Pulse frequency to be higher, MediaControlView needs it
    bigtime_t now = system_time();
    if ( now - fLastPulseUpdate > 900000 )
    {
#if 0
        int32 index, size;
        p_intf->p_sys->p_wrapper->GetPlaylistInfo( index, size );
        SetFile( index + 1, size );
        p_intf->p_sys->p_wrapper->TitleInfo( index, size );
        SetTitle( index, size );
        p_intf->p_sys->p_wrapper->ChapterInfo( index, size );
        SetChapter( index, size );
        SetTime( p_intf->p_sys->p_wrapper->GetTimeAsString() );
        fLastPulseUpdate = now;
#endif
    }
}
/*****************************************************************************
 * PositionInfoView::GetBigPreferredSize
 *****************************************************************************/
void
PositionInfoView::GetBigPreferredSize( float* width, float* height )
{
    if ( width && height )
    {
        *width = fStackedWidthCache;
        *height = fStackedHeightCache;
    }
}
/*****************************************************************************
 * PositionInfoView::SetMode
 *****************************************************************************/
void
PositionInfoView::SetMode( uint32 mode )
{
    if ( fMode != mode )
    {
        fMode = mode;
        _InvalidateContents();
    }
}
/*****************************************************************************
 * PositionInfoView::SetFile
 *****************************************************************************/
void
PositionInfoView::SetFile( int32 index, int32 size )
{
    if ( fCurrentFileIndex != index || fCurrentFileSize != size )
    {
        fCurrentFileIndex = index;
        fCurrentFileSize = size;
        _InvalidateContents();
    }
}
/*****************************************************************************
 * PositionInfoView::SetTitle
 *****************************************************************************/
void
PositionInfoView::SetTitle( int32 index, int32 size )
{
    if ( fCurrentTitleIndex != index || fCurrentFileSize != size )
    {
        fCurrentTitleIndex = index;
        fCurrentTitleSize = size;
        _InvalidateContents();
    }
}
/*****************************************************************************
 * PositionInfoView::SetChapter
 *****************************************************************************/
void
PositionInfoView::SetChapter( int32 index, int32 size )
{
    if ( fCurrentChapterIndex != index || fCurrentFileSize != size )
    {
        fCurrentChapterIndex = index;
        fCurrentChapterSize = size;
        _InvalidateContents();
    }
}
/*****************************************************************************
 * PositionInfoView::SetTime
 *****************************************************************************/
void
PositionInfoView::SetTime( int32 seconds )
{
    if ( fSeconds != seconds )
    {
        if ( seconds >= 0 )
        {
            int32 minutes = seconds / 60;
            int32 hours = minutes / 60;
            seconds -= minutes * 60 - hours * 60 * 60;
            minutes -= hours * 60;
            fTimeString.SetTo( "" );
            fTimeString << hours << ":" << minutes << ":" << seconds;
        }
        else
            fTimeString.SetTo( "-:--:--" );
        fSeconds = seconds;
        _InvalidateContents();
    }
}
/*****************************************************************************
 * PositionInfoView::SetTime
 *****************************************************************************/
void
PositionInfoView::SetTime( const char* string )
{
    fTimeString.SetTo( string );
    _InvalidateContents();
}
/*****************************************************************************
 * PositionInfoView::_InvalidateContents
 *****************************************************************************/
void
PositionInfoView::_InvalidateContents( uint32 which )
{
    BRect r( Bounds() );
    r.InsetBy( 2.0, 2.0 );
    Invalidate( r );
}
/*****************************************************************************
 * PositionInfoView::_InvalidateContents
 *****************************************************************************/
void
PositionInfoView::_MakeString( BString& into, int32 index, int32 maxIndex ) const
{
    into = "";
    if ( index >= 0 && maxIndex >= 0 )
        into << index;
    else
        into << "-";
    into << "/";
    if ( maxIndex >= 0 )
        into << maxIndex;
    else
        into << "-";
}

						