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old_flsystem/类库/UI.Framework/Tools/PickBox.cs

300 lines
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C#
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1
2022-09-20 03:10:29 +00:00
using System;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;
namespace UI.Framework.Tools
{
/// <summary>
/// <20><><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>˷ּ<CBB7><D6BC><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD>
/// ͼ<>ο<EFBFBD><CEBF>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>༭
/// </summary>
public class PickBox
{
//////////////////////////////////////////////////////////////////
// ˽<>˳<EFBFBD><CBB3><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD>
//////////////////////////////////////////////////////////////////
private const int BOX_SIZE = 8;
private Color BOX_COLOR = Color.White;
//private ContainerControl m_container;
private Control m_control;
private Label[] lbl = new Label[8];
private int startl;
private int startt;
private int startw;
private int starth;
private int startx;
private int starty;
private bool dragging;
private Cursor[] arrArrow = new Cursor[] {Cursors.SizeNWSE, Cursors.SizeNS,
Cursors.SizeNESW, Cursors.SizeWE, Cursors.SizeNWSE, Cursors.SizeNS,
Cursors.SizeNESW, Cursors.SizeWE};
private Cursor oldCursor;
private const int MIN_SIZE = 20;
public static Image ResizeImage(Image imgToResize, Size size)
{
//<2F><>ȡͼƬ<CDBC><C6AC><EFBFBD><EFBFBD>
int sourceWidth = imgToResize.Width;
//<2F><>ȡͼƬ<CDBC>߶<EFBFBD>
int sourceHeight = imgToResize.Height;
float nPercent = 0;
float nPercentW = 0;
float nPercentH = 0;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD>ű<EFBFBD><C5B1><EFBFBD>
nPercentW = ((float)size.Width / (float)sourceWidth);
//<2F><><EFBFBD><EFBFBD><EFBFBD>߶ȵ<DFB6><C8B5><EFBFBD><EFBFBD>ű<EFBFBD><C5B1><EFBFBD>
nPercentH = ((float)size.Height / (float)sourceHeight);
if (nPercentH < nPercentW)
nPercent = nPercentH;
else
nPercent = nPercentW;
//<2F><><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>
int destWidth = (int)(sourceWidth * nPercent);
//<2F><><EFBFBD><EFBFBD><EFBFBD>ĸ߶<C4B8>
int destHeight = (int)(sourceHeight * nPercent);
Bitmap b = new Bitmap(destWidth, destHeight);
using (Graphics g = Graphics.FromImage((Image)b))
{
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
//<2F><><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>
g.DrawImage(imgToResize, 0, 0, destWidth, destHeight);
}
return (Image)b;
}
public PickBox()
{
for (int i = 0; i < 8; i++)
{
lbl[i] = new Label();
lbl[i].TabIndex = i;
lbl[i].FlatStyle = 0;
lbl[i].BorderStyle = BorderStyle.FixedSingle;
lbl[i].BackColor = BOX_COLOR;
lbl[i].Cursor = arrArrow[i];
lbl[i].Text = "";
lbl[i].BringToFront();
lbl[i].MouseDown += new MouseEventHandler(this.lbl_MouseDown);
lbl[i].MouseMove += new MouseEventHandler(this.lbl_MouseMove);
lbl[i].MouseUp += new MouseEventHandler(this.lbl_MouseUp);
}
}
public void RemoveSelect()
{
try
{
if (lbl != null && m_control != null)
{
for (int i = 0; i < 8; i++)
{
//lbl[i].BorderStyle = BorderStyle.None;
//lbl[i].MouseDown -= new MouseEventHandler(this.lbl_MouseDown);
//lbl[i].MouseMove -= new MouseEventHandler(this.lbl_MouseMove);
//lbl[i].MouseUp -= new MouseEventHandler(this.lbl_MouseUp);
m_control.Parent.Controls.Remove(lbl[i]);
}
}
}
catch { }
}
public void WireControl(Control ctl)
{
ctl.Click += new EventHandler(this.SelectControl);
}
/////////////////////////////////////////////////////////////////
// ˽<>з<EFBFBD><D0B7><EFBFBD>
/////////////////////////////////////////////////////////////////
//
// <20><>һ<EFBFBD><D2BB>ѡ<EFBFBD><D1A1><EFBFBD>򸽼ӵ<F2B8BDBC><D3B5><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>ؼ<EFBFBD>
//
private void SelectControl(object sender, EventArgs e)
{
if (m_control is Control)
{
m_control.Cursor = oldCursor;
//ɾ<><C9BE><EFBFBD><EFBFBD><EFBFBD>฽<EFBFBD><E0B8BD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><CEBA>Ѵ<EFBFBD><D1B4>ڵ<EFBFBD><DAB5>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
m_control.MouseDown -= new MouseEventHandler(this.ctl_MouseDown);
m_control.MouseMove -= new MouseEventHandler(this.ctl_MouseMove);
m_control.MouseUp -= new MouseEventHandler(this.ctl_MouseUp);
m_control = null;
}
m_control = (Control)sender;
//Ϊ<>ƶ<EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD>Ŀؼ<C4BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
m_control.MouseDown += new MouseEventHandler(this.ctl_MouseDown);
m_control.MouseMove += new MouseEventHandler(this.ctl_MouseMove);
m_control.MouseUp += new MouseEventHandler(this.ctl_MouseUp);
//Add sizing handles to Control's container (Form or PictureBox)
for (int i = 0; i < 8; i++)
{
m_control.Parent.Controls.Add(lbl[i]);
lbl[i].BringToFront();
}
//λ<>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
MoveHandles();
//<2F><>ʾ<EFBFBD>ּ<EFBFBD><D6BC><EFBFBD><EFBFBD><EFBFBD>
ShowHandles();
oldCursor = m_control.Cursor;
m_control.Cursor = Cursors.SizeAll;
}
public void Remove()
{
HideHandles();
m_control.Cursor = oldCursor;
}
private void ShowHandles()
{
if (m_control != null)
{
for (int i = 0; i < 8; i++)
{
lbl[i].Visible = true;
}
}
}
private void HideHandles()
{
for (int i = 0; i < 8; i++)
{
lbl[i].Visible = false;
}
}
private void MoveHandles()
{
int sX = m_control.Left - BOX_SIZE;
int sY = m_control.Top - BOX_SIZE;
int sW = m_control.Width + BOX_SIZE;
int sH = m_control.Height + BOX_SIZE;
int hB = BOX_SIZE / 2;
int[] arrPosX = new int[] {sX+hB, sX + sW / 2, sX + sW-hB, sX + sW-hB,
sX + sW-hB, sX + sW / 2, sX+hB, sX+hB};
int[] arrPosY = new int[] {sY+hB, sY+hB, sY+hB, sY + sH / 2, sY + sH-hB,
sY + sH-hB, sY + sH-hB, sY + sH / 2};
for (int i = 0; i < 8; i++)
lbl[i].SetBounds(arrPosX[i], arrPosY[i], BOX_SIZE, BOX_SIZE);
}
private void lbl_MouseDown(object sender, MouseEventArgs e)
{
dragging = true;
startl = m_control.Left;
startt = m_control.Top;
startw = m_control.Width;
starth = m_control.Height;
HideHandles();
}
private void lbl_MouseMove(object sender, MouseEventArgs e)
{
int l = m_control.Left;
int w = m_control.Width;
int t = m_control.Top;
int h = m_control.Height;
if (dragging)
{
switch (((Label)sender).TabIndex)
{
case 0: // <20>϶<EFBFBD><CFB6><EFBFBD><EFBFBD>ϵķּ<C4B7><D6BC><EFBFBD>
l = startl + e.X < startl + startw - MIN_SIZE ? startl + e.X : startl + startw - MIN_SIZE;
t = startt + e.Y < startt + starth - MIN_SIZE ? startt + e.Y : startt + starth - MIN_SIZE;
w = startl + startw - m_control.Left;
h = startt + starth - m_control.Top;
break;
case 1: // <20>϶<EFBFBD><CFB6>Ϸ<EFBFBD><CFB7>ּ<EFBFBD><D6BC><EFBFBD>
t = startt + e.Y < startt + starth - MIN_SIZE ? startt + e.Y : startt + starth - MIN_SIZE;
h = startt + starth - m_control.Top;
break;
case 2: // <20>϶<EFBFBD><CFB6><EFBFBD><EFBFBD>ϵķּ<C4B7><D6BC><EFBFBD>
w = startw + e.X > MIN_SIZE ? startw + e.X : MIN_SIZE;
t = startt + e.Y < startt + starth - MIN_SIZE ? startt + e.Y : startt + starth - MIN_SIZE;
h = startt + starth - m_control.Top;
break;
case 3: // <20>϶<EFBFBD><CFB6>Ҳ<EFBFBD><D2B2>м<EFBFBD><D0BC><EFBFBD>С<EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>
w = startw + e.X > MIN_SIZE ? startw + e.X : MIN_SIZE;
break;
case 4: // <20>϶<EFBFBD>right-bottom<6F>ּ<EFBFBD><D6BC><EFBFBD>
w = startw + e.X > MIN_SIZE ? startw + e.X : MIN_SIZE;
h = starth + e.Y > MIN_SIZE ? starth + e.Y : MIN_SIZE;
break;
case 5: // <20>϶<EFBFBD><CFB6><EFBFBD><EFBFBD>²<EFBFBD><C2B2>ּ<EFBFBD><D6BC><EFBFBD>
h = starth + e.Y > MIN_SIZE ? starth + e.Y : MIN_SIZE;
break;
case 6: // <20>϶<EFBFBD><CFB6><EFBFBD><EFBFBD>½Ǵ<C2BD>С<EFBFBD><D0A1>
l = startl + e.X < startl + startw - MIN_SIZE ? startl + e.X : startl + startw - MIN_SIZE;
w = startl + startw - m_control.Left;
h = starth + e.Y > MIN_SIZE ? starth + e.Y : MIN_SIZE;
break;
case 7: //<2F>϶<EFBFBD><CFB6><EFBFBD><EFBFBD><EFBFBD>ʩ<EFBFBD><CAA9><EFBFBD><EFBFBD>
l = startl + e.X < startl + startw - MIN_SIZE ? startl + e.X : startl + startw - MIN_SIZE;
w = startl + startw - m_control.Left;
break;
}
l = (l < 0) ? 0 : l;
t = (t < 0) ? 0 : t;
m_control.SetBounds(l, t, w, h);
}
}
private void lbl_MouseUp(object sender, MouseEventArgs e)
{
dragging = false;
MoveHandles();
ShowHandles();
}
private void ctl_MouseDown(object sender, MouseEventArgs e)
{
dragging = true;
startx = e.X;
starty = e.Y;
HideHandles();
}
private void ctl_MouseMove(object sender, MouseEventArgs e)
{
if (dragging)
{
int l = m_control.Left + e.X - startx;
int t = m_control.Top + e.Y - starty;
int w = m_control.Width;
int h = m_control.Height;
l = (l < 0) ? 0 : ((l + w > m_control.Parent.ClientRectangle.Width) ?
m_control.Parent.ClientRectangle.Width - w : l);
t = (t < 0) ? 0 : ((t + h > m_control.Parent.ClientRectangle.Height) ?
m_control.Parent.ClientRectangle.Height - h : t);
m_control.Left = l;
m_control.Top = t;
}
}
private void ctl_MouseUp(object sender, MouseEventArgs e)
{
dragging = false;
MoveHandles();
ShowHandles();
}
}
}