File: WaveView.cs

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cadencii 3.3.9%2Bsvn20110818.r1732-6
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/*
 * WaveView.cs
 * Copyright © 2009-2011 kbinani
 *
 * This file is part of org.kbinani.cadencii.
 *
 * org.kbinani.cadencii is free software; you can redistribute it and/or
 * modify it under the terms of the GPLv3 License.
 *
 * org.kbinani.cadencii 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.
 */
#if JAVA
package org.kbinani.cadencii;

import java.awt.*;
import java.awt.image.*;
import org.kbinani.*;
import org.kbinani.media.*;
import org.kbinani.windows.forms.*;
#else
using System;
using System.Windows.Forms;
using org.kbinani;
using org.kbinani.java.awt;
using org.kbinani.java.awt.image;
using org.kbinani.media;
using org.kbinani.windows.forms;

namespace org.kbinani.cadencii {
    using boolean = System.Boolean;
    using BEventArgs = System.EventArgs;
#endif

    /// <summary>
    /// トラック16個分の波形描画コンテキストを保持し、それらの描画を行うコンポーネントです。
    /// </summary>
#if JAVA
    public class WaveView extends BPanel
#else
    public class WaveView : BPanel
#endif
    {
        /// <summary>
        /// 波形描画用のコンテキスト
        /// </summary>
        private WaveDrawContext[] mDrawer = new WaveDrawContext[16];
        /// <summary>
        /// グラフィクスオブジェクトのキャッシュ
        /// </summary>
        private Graphics2D mGraphics = null;
        /// <summary>
        /// 縦軸方向のスケール
        /// </summary>
        private float mScale = MIN_SCALE;
        private const float MAX_SCALE = 10.0f;
        private const float MIN_SCALE = 1.0f;
        /// <summary>
        /// 左側のボタン部との境界線の色
        /// </summary>
        private Color mBorderColor = new Color( 105, 105, 105 );
        /// <summary>
        /// 縦軸のスケールを自動最大化するかどうか
        /// </summary>
        private boolean mAutoMaximize = false;
        /// <summary>
        /// 幅2ピクセルのストローク
        /// </summary>
        private BasicStroke mStroke2px = null;
        /// <summary>
        /// デフォルトのストローク
        /// </summary>
        private BasicStroke mStrokeDefault = null;

        /// <summary>
        /// コンストラクタ
        /// </summary>
        public WaveView()
#if JAVA
        {
#else
            :
#endif
            base()
#if JAVA
            ;
#else
        {
#endif
#if !JAVA
            this.SetStyle( ControlStyles.DoubleBuffer, true );
            this.SetStyle( ControlStyles.UserPaint, true );
            this.DoubleBuffered = true;
#endif
        }

        /// <summary>
        /// 縦軸を自動最大化するかどうかを取得します
        /// </summary>
        /// <returns></returns>
        public boolean isAutoMaximize() {
            return mAutoMaximize;
        }

        /// <summary>
        /// 縦軸を自動最大化するかどうかを設定します
        /// </summary>
        /// <param name="value"></param>
        public void setAutoMaximize( boolean value ) {
            mAutoMaximize = value;
        }

        /// <summary>
        /// コンポーネントの描画関数です
        /// </summary>
        /// <param name="g"></param>
        public void paint( Graphics g1 ) {
            int width = getWidth();
            int height = getHeight();
            Rectangle rc = new Rectangle( 0, 0, width, height );

            Graphics2D g = (Graphics2D)g1;

            // 背景を塗りつぶす
            g.setStroke( getStrokeDefault() );
            g.setColor( Color.gray );
            g.fillRect( rc.x, rc.y, rc.width, rc.height );

            if ( AppManager.skipDrawingWaveformWhenPlaying && AppManager.isPlaying() ) {
                // 左側のボタン部との境界線
                g.setColor( mBorderColor );
                g.drawLine( 0, 0, 0, height );

                g.setColor( Color.black );
                PortUtil.drawStringEx(
                    g,
                    "(hidden for performance)", 
                    AppManager.baseFont8,
                    rc, 
                    PortUtil.STRING_ALIGN_CENTER,
                    PortUtil.STRING_ALIGN_CENTER );
                return;
            }
            
            // スケール線を描く
            int half_height = height / 2;
            g.setColor( Color.black );
            g.drawLine( 0, half_height, width, half_height );

            // 描画コンテキストを用いて波形を描画
            int selected = AppManager.getSelected();
            WaveDrawContext context = mDrawer[selected - 1];

            if ( context != null ) {
                if ( mAutoMaximize ) {
                    context.draw(
                        g,
                        Color.black,
                        rc,
                        AppManager.clockFromXCoord( AppManager.keyWidth ),
                        AppManager.clockFromXCoord( AppManager.keyWidth + width ),
                        AppManager.getVsqFile().TempoTable,
                        AppManager.mMainWindowController.getScaleX() );
                } else {
                    context.draw(
                        g,
                        Color.black,
                        rc,
                        AppManager.clockFromXCoord( AppManager.keyWidth ),
                        AppManager.clockFromXCoord( AppManager.keyWidth + width ),
                        AppManager.getVsqFile().TempoTable,
                        AppManager.mMainWindowController.getScaleX(),
                        mScale );
                }
            }

            // 左側のボタン部との境界線
            g.setColor( mBorderColor );
            g.drawLine( 0, 0, 0, height );

            // ソングポジション
            int song_pos_x = AppManager.xCoordFromClocks( AppManager.getCurrentClock() ) - AppManager.keyWidth;
            if ( 0 < song_pos_x ) {
                g.setColor( Color.white );
                g.setStroke( getStroke2px() );
                g.drawLine( song_pos_x, 0, song_pos_x, height );
            }
        }

        private BasicStroke getStrokeDefault() {
            if ( mStrokeDefault == null ) {
                mStrokeDefault = new BasicStroke();
            }
            return mStrokeDefault;
        }

        private BasicStroke getStroke2px() {
            if ( mStroke2px == null ) {
                mStroke2px = new BasicStroke( 2.0f );
            }
            return mStroke2px;
        }

        /// <summary>
        /// 縦方向の描画倍率を取得します。
        /// </summary>
        /// <seealso cref="getScale"/>
        /// <returns></returns>
        public float scale() {
            return mScale;
        }

        /// <summary>
        /// 縦方向の描画倍率を取得します。
        /// </summary>
        /// <returns></returns>
        public float getScale() {
            return mScale;
        }

        /// <summary>
        /// 縦方向の描画倍率を設定します。
        /// </summary>
        /// <param name="value"></param>
        public void setScale( float value ) {
            if ( value < MIN_SCALE ) {
                mScale = MIN_SCALE;
            } else if ( MAX_SCALE < value ) {
                mScale = MAX_SCALE;
            } else {
                mScale = value;
            }
        }

        /// <summary>
        /// 全ての波形描画コンテキストが保持しているデータをクリアします
        /// </summary>
        public void unloadAll() {
            for ( int i = 0; i < mDrawer.Length; i++ ) {
                WaveDrawContext context = mDrawer[i];
                if ( context == null ) {
                    continue;
                }
                context.unload();
            }
        }

        /// <summary>
        /// 波形描画コンテキストに、指定したWAVEファイルの指定区間を再度読み込みます。
        /// </summary>
        /// <param name="index">読込を行わせる波形描画コンテキストのインデックス</param>
        /// <param name="file">読み込むWAVEファイルのパス</param>
        /// <param name="sec_from">読み込み区間の開始秒時</param>
        /// <param name="sec_to">読み込み区間の終了秒時</param>
        public void reloadPartial( int index, String file, double sec_from, double sec_to ) {
            if ( index < 0 || mDrawer.Length <= index ) {
                return;
            }
            if ( mDrawer[index] == null ) {
                mDrawer[index] = new WaveDrawContext();
                mDrawer[index].load( file );
            } else {
                mDrawer[index].reloadPartial( file, sec_from, sec_to );
            }
        }

        /// <summary>
        /// 波形描画コンテキストに、指定したWAVEファイルを読み込みます。
        /// </summary>
        /// <param name="index">読込を行わせる波形描画コンテキストのインデックス</param>
        /// <param name="wave_path">読み込むWAVEファイルのパス</param>
        public void load( int index, String wave_path ) {
            if ( index < 0 || mDrawer.Length <= index ) {
#if DEBUG
                sout.println( "WaveView#load; index out of range" );
#endif
                return;
            }
#if DEBUG
            sout.println( "WaveView#load; index=" + index );
#endif
            if ( mDrawer[index] == null ) {
                mDrawer[index] = new WaveDrawContext();
            }
            mDrawer[index].load( wave_path );
        }

#if !JAVA
        /// <summary>
        /// オーバーライドされます。
        /// <seealso cref="M:System.Windows.Forms.Control.OnPaint"/>
        /// </summary>
        /// <param name="e"></param>
        protected override void OnPaint( PaintEventArgs e ) {
            base.OnPaint( e );
            if ( mGraphics == null ) {
                mGraphics = new Graphics2D( null );
            }
            mGraphics.nativeGraphics = e.Graphics;
            paint( mGraphics );
        }
#endif
    }

#if !JAVA
}
#endif