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116 lines
5.0 KiB
C#
116 lines
5.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using System.Drawing;
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namespace ST.Library.UI.NodeEditor
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{
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internal class FrmSTNodePropertySelect : Form
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{
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private STNodePropertyDescriptor m_descriptor;
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private int m_nItemHeight = 25;
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private static Type m_t_bool = typeof(bool);
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private Pen m_pen;
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private SolidBrush m_brush;
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private StringFormat m_sf;
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private Color m_clr_item_1 = Color.FromArgb(10, 0, 0, 0);// Color.FromArgb(255, 40, 40, 40);
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private Color m_clr_item_2 = Color.FromArgb(10, 255, 255, 255);// Color.FromArgb(255, 50, 50, 50);
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private object m_item_hover;
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public FrmSTNodePropertySelect(STNodePropertyDescriptor descriptor) {
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this.SetStyle(ControlStyles.UserPaint, true);
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this.SetStyle(ControlStyles.ResizeRedraw, true);
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this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
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this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
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m_descriptor = descriptor;
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this.Size = descriptor.RectangleR.Size;
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this.ShowInTaskbar = false;
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this.BackColor = descriptor.Control.BackColor;
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this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
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m_pen = new Pen(descriptor.Control.AutoColor ? descriptor.Node.TitleColor : descriptor.Control.ItemSelectedColor, 1);
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m_brush = new SolidBrush(this.BackColor);
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m_sf = new StringFormat();
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m_sf.LineAlignment = StringAlignment.Center;
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m_sf.FormatFlags = StringFormatFlags.NoWrap;
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}
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private List<object> m_lst_item = new List<object>();
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protected override void OnLoad(EventArgs e) {
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base.OnLoad(e);
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Point pt = m_descriptor.Control.PointToScreen(m_descriptor.RectangleR.Location);
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pt.Y += m_descriptor.Control.ScrollOffset;
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this.Location = pt;
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if (m_descriptor.PropertyInfo.PropertyType.IsEnum) {
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foreach (var v in Enum.GetValues(m_descriptor.PropertyInfo.PropertyType)) m_lst_item.Add(v);
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} else if (m_descriptor.PropertyInfo.PropertyType == m_t_bool) {
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m_lst_item.Add(true);
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m_lst_item.Add(false);
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} else {
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this.Close();
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return;
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}
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this.Height = m_lst_item.Count * m_nItemHeight;
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Rectangle rect = Screen.GetWorkingArea(this);
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if (this.Bottom > rect.Bottom) this.Top -= (this.Bottom - rect.Bottom);
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this.MouseLeave += (s, ea) => this.Close();
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this.LostFocus += (s, ea) => this.Close();
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}
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protected override void OnPaint(PaintEventArgs e) {
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base.OnPaint(e);
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Graphics g = e.Graphics;
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g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
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Rectangle rect_back = new Rectangle(0, 0, this.Width, m_nItemHeight);
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Rectangle rect_font = new Rectangle(10, 0, this.Width - 13, m_nItemHeight);
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int nIndex = 0;
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string strVal = m_descriptor.GetStringFromValue();
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foreach (var v in m_lst_item) {
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m_brush.Color = nIndex++ % 2 == 0 ? m_clr_item_1 : m_clr_item_2;
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g.FillRectangle(m_brush, rect_back);
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if (v == m_item_hover) {
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m_brush.Color = m_descriptor.Control.ItemHoverColor;
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g.FillRectangle(m_brush, rect_back);
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}
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if (v.ToString() == strVal) {
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m_brush.Color = m_descriptor.Control.ItemSelectedColor;
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g.FillRectangle(m_brush, 4, rect_back.Top + 10, 5, 5);
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}
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m_brush.Color = m_descriptor.Control.ForeColor;
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g.DrawString(v.ToString(), m_descriptor.Control.Font, m_brush, rect_font, m_sf);
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rect_back.Y += m_nItemHeight;
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rect_font.Y += m_nItemHeight;
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}
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g.DrawRectangle(m_pen, 0, 0, this.Width - 1, this.Height - 1);
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}
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protected override void OnMouseMove(MouseEventArgs e) {
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base.OnMouseMove(e);
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int nIndex = e.Y / m_nItemHeight;
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if (nIndex < 0 || nIndex >= m_lst_item.Count) return;
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var item = m_lst_item[e.Y / m_nItemHeight];
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if (m_item_hover == item) return;
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m_item_hover = item;
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this.Invalidate();
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}
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protected override void OnMouseClick(MouseEventArgs e) {
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base.OnMouseClick(e);
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this.Close();
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int nIndex = e.Y / m_nItemHeight;
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if (nIndex < 0) return;
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if (nIndex > m_lst_item.Count) return;
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try {
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m_descriptor.SetValue(m_lst_item[nIndex], null);
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} catch (Exception ex) {
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m_descriptor.OnSetValueError(ex);
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}
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}
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}
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} |