NeoFT/Controls/HeightBar.cs

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Windows.Forms;
using System.Resources;
using System.Reflection;

namespace nft.controls
{
        /// <summary>
        /// HeightBar ĚTvĚŕžĹˇB
        /// </summary>
        public class HeightBar : System.Windows.Forms.UserControl
        {
                private System.Windows.Forms.Button btnUp;
                private System.Windows.Forms.PictureBox barArea;
                private System.Windows.Forms.Button btnDown;
                private System.ComponentModel.IContainer components;
                private Bitmap bmGauge;
                private bool loaded = false;
                static private Bitmap bmGround;
                private System.Windows.Forms.ImageList imageList;
                private GripLabel grip;
                static private Bitmap bmInfinity;

                static HeightBar(){
                        try{            
                                // TODO!!!!                       
                                ResourceManager rm = new ResourceManager("nft.controls.resources",Assembly.GetExecutingAssembly());
                                String [] sa = Assembly.GetExecutingAssembly().GetManifestResourceNames();
                                for(int i =0; i<sa.Length; i++)
                                        Debug.WriteLine(sa[i]);

                                bmGround = rm.GetObject("Image.Ground") as Bitmap;
                                bmInfinity = rm.GetObject("Image.Infinity") as Bitmap;
                        }catch(Exception e){
                                Debug.WriteLine(e.Message);
                                Debug.WriteLine(e.StackTrace);
                        }
                }

                public HeightBar()
                {
                        // ąĚÄŃoľÍAWindows.Forms tH[ fUCiĹKvĹˇB
                        InitializeComponent();
                        grip = new GripLabel();
                        Controls.Add(grip);                     
                }

                #region colorProperties
                private Color clGrid = SystemColors.WindowText;
                private Color clGridSelect = SystemColors.HighlightText;
                private Color clFillAbove = SystemColors.Window;
                private Color clFillGround = SystemColors.Window;
                private Color clFillUnder = SystemColors.Window;
                private Color clFillAboveSelect = SystemColors.Highlight;
                private Color clFillGroundSelect = SystemColors.Highlight;
                private Color clFillUnderSelect = SystemColors.Highlight;

                public Color GridColor { get { return clGrid; } set { clGrid = value; createGaugeImage(); } }
                public Color GridSelectedColor { get { return clGridSelect; } set { clGridSelect = value; createGaugeImage(); } }
                public Color FillAboveGroundColor { get { return clFillAbove; } set { clFillAbove = value; createGaugeImage(); } }
                public Color FillAboveGroundSelectedColor { get { return clFillAboveSelect; } set { clFillAboveSelect = value; createGaugeImage(); } }
                public Color FillOnGroundColor { get { return clFillGround; } set { clFillGround = value; createGaugeImage(); } }
                public Color FillOnGroundSelectedColor { get { return clFillGroundSelect; } set { clFillGroundSelect = value; createGaugeImage(); } }
                public Color FillUnderGroundColor { get { return clFillUnder; } set { clFillUnder = value; createGaugeImage(); } }
                public Color FillUnderGroundSelectedColor { get { return clFillUnderSelect; } set { clFillUnderSelect = value; createGaugeImage(); } }
                #endregion

                private int aboveTicks = 10;
                private int underTicks = 4;
                private int tickHeight;
                private int groundHeight = 0;
                private int infiniHeight = 0;

                public int TicksAboveGround { 
                        get { return aboveTicks; } 
                        set{ aboveTicks = Math.Min(100,Math.Max(0,value)); createGaugeImage(); }
                }
                public int TicksUnderGround { 
                        get { return underTicks; } 
                        set{ underTicks = Math.Min(100,Math.Max(0,value)); createGaugeImage(); }
                }

                protected override void OnLoad(EventArgs e) {
                        base.OnLoad (e);
                }


                protected override void OnSizeChanged(EventArgs e) {
                        base.OnSizeChanged (e);
                        createGaugeImage();
                }

                protected void createGaugeImage(){
                        if(!loaded && !DesignMode) return;
                        if(bmGauge!=null)
                                bmGauge.Dispose();
                        int barHeight = barArea.Height;
                        int barWidth = barArea.Width;
                        bmGauge = new Bitmap(barWidth,barHeight);
                        int n = TicksAboveGround+TicksUnderGround+2;
                        if(n*2>barHeight){
                                tickHeight = 2;
                                if((TicksUnderGround+2)*2>barHeight){
                                        aboveTicks=0;
                                        int t = (barHeight>>1)-2;
                                        underTicks=t;
                                        if(t<0) 
                                                tickHeight = 0;
                                }else{
                                        aboveTicks=(barHeight>>1)-TicksUnderGround-2;
                                }
                        } else {
                                tickHeight = (int)Math.Floor((barHeight-1)/(double)n);
                        }
                        if(tickHeight!=0){
                                int m = barHeight - n*tickHeight;
                                int gh = bmGround.Height;
                                if((m+tickHeight)>gh) {
                                        groundHeight = Math.Max(gh,tickHeight);
                                        infiniHeight = (tickHeight<<1) + m - groundHeight;
                                }
                                else {
                                        groundHeight = tickHeight;
                                        infiniHeight = tickHeight+m;
                                }
                        }
                        
                        using(Graphics g = Graphics.FromImage(bmGauge)){
                                using( BrushSet bs = new BrushSet(this) ){
                                        if(tickHeight==0){
                                                g.FillRectangle(SystemBrushes.Control,0,0,barWidth,barHeight);
                                        }else {
                                                int y = TicksAboveGround*tickHeight+infiniHeight;
                                                g.FillRectangle(bs.AboveGround,0,0,barWidth,y);
                                                g.FillRectangle(bs.Ground,0,y,barWidth,groundHeight);
                                                y += groundHeight;
                                                g.FillRectangle(bs.UnderGround,0,y,barWidth,barHeight-y);

                                                barWidth--;
                                                g.DrawRectangle(bs.Grid,0,-1,barWidth,infiniHeight);
                                                int h = infiniHeight-1;
                                                for(int i=0; i<TicksAboveGround; i++){
                                                        g.DrawRectangle(bs.Grid,0,h,barWidth,tickHeight);
                                                        h+=tickHeight;
                                                }
                                                g.DrawRectangle(bs.Grid,0,h,barWidth,groundHeight);
                                                h+=groundHeight;
                                                for(int i=0; i<TicksUnderGround; i++){
                                                        g.DrawRectangle(bs.Grid,0,h,barWidth,tickHeight);
                                                        h+=tickHeight;
                                                }
                                        }
                                }
                        }
                        barArea.Image = bmGauge;
                }

                /// <summary>
                /// gpłęÄ˘é\[XÉăđŔsľÜˇB
                /// </summary>
                protected override void Dispose( bool disposing )
                {
                        if( disposing ) {
                                if(components != null) {
                                        components.Dispose();
                                }
                        }
                        base.Dispose( disposing );
                }

                protected override void OnVisibleChanged(EventArgs e) {
                        base.OnVisibleChanged (e);
                        if(!loaded){
                                loaded = true;
                                createGaugeImage();                     
                        }
                }


                #region R|[lg fUCiĹśŹłę˝R[h 
                /// <summary>
                /// fUCi T|[gÉKvČ\bhĹˇBąĚ\bhĚŕeđ
                /// R[h GfB^ĹĎXľČ˘Ĺžł˘B
                /// </summary>
                private void InitializeComponent()
                {
                        this.components = new System.ComponentModel.Container();
                        System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(HeightBar));
                        this.btnUp = new System.Windows.Forms.Button();
                        this.imageList = new System.Windows.Forms.ImageList(this.components);
                        this.btnDown = new System.Windows.Forms.Button();
                        this.barArea = new System.Windows.Forms.PictureBox();
                        this.SuspendLayout();
                        // 
                        // btnUp
                        // 
                        this.btnUp.Dock = System.Windows.Forms.DockStyle.Top;
                        this.btnUp.Font = new System.Drawing.Font("lr oSVbN", 5.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(128)));
                        this.btnUp.ImageIndex = 0;
                        this.btnUp.ImageList = this.imageList;
                        this.btnUp.Location = new System.Drawing.Point(0, 0);
                        this.btnUp.Name = "btnUp";
                        this.btnUp.Size = new System.Drawing.Size(13, 13);
                        this.btnUp.TabIndex = 1;
                        // 
                        // imageList
                        // 
                        this.imageList.ColorDepth = System.Windows.Forms.ColorDepth.Depth4Bit;
                        this.imageList.ImageSize = new System.Drawing.Size(7, 6);
                        this.imageList.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList.ImageStream")));
                        this.imageList.TransparentColor = System.Drawing.Color.White;
                        // 
                        // btnDown
                        // 
                        this.btnDown.Dock = System.Windows.Forms.DockStyle.Bottom;
                        this.btnDown.Font = new System.Drawing.Font("lr oSVbN", 5.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(128)));
                        this.btnDown.ImageIndex = 1;
                        this.btnDown.ImageList = this.imageList;
                        this.btnDown.Location = new System.Drawing.Point(0, 137);
                        this.btnDown.Name = "btnDown";
                        this.btnDown.Size = new System.Drawing.Size(13, 13);
                        this.btnDown.TabIndex = 1;
                        // 
                        // barArea
                        // 
                        this.barArea.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
                                | System.Windows.Forms.AnchorStyles.Left) 
                                | System.Windows.Forms.AnchorStyles.Right)));
                        this.barArea.Location = new System.Drawing.Point(0, 13);
                        this.barArea.Name = "barArea";
                        this.barArea.Size = new System.Drawing.Size(13, 124);
                        this.barArea.TabIndex = 2;
                        this.barArea.TabStop = false;
                        // 
                        // HeightBar
                        // 
                        this.Controls.Add(this.btnUp);
                        this.Controls.Add(this.btnDown);
                        this.Controls.Add(this.barArea);
                        this.Name = "HeightBar";
                        this.Size = new System.Drawing.Size(13, 150);
                        this.ResumeLayout(false);

                }
                #endregion
        }

        class GripLabel : Label {
                private Color border;

                public Color BorderColor { get { return border; } set { border = value; Invalidate(); } }
                protected override void OnPaint(PaintEventArgs e) {
                        base.OnPaint (e);
                        using(Pen p = new Pen(border)){
                                e.Graphics.DrawRectangle(p,0,0,Width-1,Height-1);
                        }
                }

        }

        class BrushSet : IDisposable {
                #region 
                enum BrushIndex { above, ground, under, aboveSel, groundSel, underSel };
                Brush[] brushes;
                Pen normal,selected;

                public BrushSet(HeightBar owner){
                        brushes = new Brush[6];
                        normal = new Pen(owner.GridColor);
                        selected =new Pen(owner.GridSelectedColor);
                        brushes[(int)BrushIndex.above] =new SolidBrush(owner.FillAboveGroundColor);
                        brushes[(int)BrushIndex.ground] =new SolidBrush(owner.FillOnGroundColor);
                        brushes[(int)BrushIndex.under] =new SolidBrush(owner.FillUnderGroundColor);
                        brushes[(int)BrushIndex.aboveSel] =new SolidBrush(owner.FillAboveGroundSelectedColor);
                        brushes[(int)BrushIndex.groundSel] =new SolidBrush(owner.FillOnGroundSelectedColor);
                        brushes[(int)BrushIndex.underSel] =new SolidBrush(owner.FillUnderGroundSelectedColor);                  
                }

                public Pen Grid { get { return normal; }}
                public Pen GridSelected { get { return selected; }}
                public Brush AboveGround { get { return brushes[(int)BrushIndex.above]; }}
                public Brush AboveSelected { get { return brushes[(int)BrushIndex.aboveSel]; }}
                public Brush Ground { get { return brushes[(int)BrushIndex.ground]; }}
                public Brush GroundSelected { get { return brushes[(int)BrushIndex.groundSel]; }}
                public Brush UnderGround { get { return brushes[(int)BrushIndex.under]; }}
                public Brush UnderSelected { get { return brushes[(int)BrushIndex.underSel]; }}

                public void Dispose() {
                        normal.Dispose();
                        selected.Dispose();
                        normal = null;
                        selected = null;
                        for(int i=0; i<brushes.Length; i++ ) {
                                brushes[i].Dispose();
                        }
                        brushes = null;
                }
                #endregion
        }
}