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https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
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336 lines
12 KiB
C#
Executable file
336 lines
12 KiB
C#
Executable file
#region ======================== Namespaces
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Text;
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using System.Windows.Forms;
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#endregion
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// Based on http://www.codeproject.com/Articles/1106140/VisualStudio-Like-TabControl
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namespace CodeImp.DoomBuilder.Controls
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{
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public class VSTabControl : TabControl
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{
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#region ======================== Events
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public event EventHandler<TabControlEventArgs> OnCloseTabClicked;
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#endregion
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#region ======================== Properties
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public bool ShowClosingButton { get; set; }
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[Category("Colors"), Browsable(true), Description("The color of the selected page")]
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public Color ActiveColor { get { return activeColor; } set { activeColor = value; } }
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[Category("Colors"), Browsable(true), Description("The color of the highlighted page")]
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public Color HighlightColor { get { return highlightColor; } set { highlightColor = value; } }
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[Category("Colors"), Browsable(true), Description("The color of the background of the tab")]
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public Color BackTabColor { get { return backTabColor; } set { backTabColor = value; } }
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[Category("Colors"), Browsable(true), Description("The color of the border of the control")]
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public Color BorderColor { get { return borderColor; } set { borderColor = value; } }
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[Category("Colors"), Browsable(true), Description("The color of the title of the page")]
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public Color TextColor { get { return textColor; } set { textColor = value; } }
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[Category("Colors"), Browsable(true), Description("The color of the title of the page")]
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public Color SelectedTextColor { get { return selectedTextColor; } set { selectedTextColor = value; } }
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#endregion
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#region ======================== Variables
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private readonly StringFormat centersringformat = new StringFormat { Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Center };
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private TabPage predraggedTab;
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private Color textColor = SystemColors.WindowText;
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private Color selectedTextColor = SystemColors.HighlightText;
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private Color activeColor = SystemColors.HotTrack;
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private Color highlightColor = SystemColors.Highlight;
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private Color backTabColor = SystemColors.Control;
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private Color borderColor = SystemColors.Control;
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private int closebuttonmouseoverindex = -1; //mxd
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#endregion
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#region ======================== Constructor
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public VSTabControl()
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{
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SetStyle(
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ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.ResizeRedraw
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| ControlStyles.OptimizedDoubleBuffer,
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true);
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DoubleBuffered = true;
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SizeMode = TabSizeMode.Normal;
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ItemSize = new Size(240, 16);
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AllowDrop = true;
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}
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#endregion
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#region ======================== Event overrides
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protected override void CreateHandle()
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{
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base.CreateHandle();
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Alignment = TabAlignment.Top;
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}
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protected override void OnDragOver(DragEventArgs drgevent)
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{
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//mxd. Collect used tab page types...
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var tabpagetypes = new HashSet<Type>();
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foreach(var page in TabPages) tabpagetypes.Add(page.GetType());
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//mxd. Identify dragged tab type...
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TabPage draggedTab = null;
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foreach(var T in tabpagetypes)
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{
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draggedTab = (TabPage)drgevent.Data.GetData(T);
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if(draggedTab != null) break;
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}
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var pointedTab = GetPointedTab();
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if(ReferenceEquals(draggedTab, predraggedTab) && pointedTab != null)
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{
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drgevent.Effect = DragDropEffects.Move;
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if(!ReferenceEquals(pointedTab, draggedTab)) ReplaceTabPages(draggedTab, pointedTab);
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}
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base.OnDragOver(drgevent);
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}
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protected override void OnMouseDown(MouseEventArgs e)
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{
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predraggedTab = GetPointedTab();
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//mxd. MEMO: OnMouseUp is not fired when clicking on inactive tab...
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if(ShowClosingButton)
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{
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for(var i = 0; i < TabCount; i++)
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{
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Rectangle r = GetCloseButtonRect(GetTabRect(i));
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if(r.Contains(e.Location))
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{
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// Raise event...
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if(OnCloseTabClicked != null)
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{
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TabControlEventArgs te = new TabControlEventArgs(TabPages[i], i, TabControlAction.Selected);
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OnCloseTabClicked(this, te);
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closebuttonmouseoverindex = -1;
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}
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break;
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}
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}
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}
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base.OnMouseDown(e);
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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if(e.Button == MouseButtons.Left && predraggedTab != null)
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{
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DoDragDrop(predraggedTab, DragDropEffects.Move);
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}
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//mxd. Closing button highlight needs updating?
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else if(ShowClosingButton)
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{
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int index = GetPointedTabIndex();
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if(index != -1)
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{
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Rectangle cr = GetCloseButtonRect(GetTabRect(index));
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bool inside = cr.Contains(PointToClient(Cursor.Position));
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if(inside && closebuttonmouseoverindex == -1)
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{
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closebuttonmouseoverindex = index;
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Refresh();
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}
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else if(!inside && closebuttonmouseoverindex != -1)
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{
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closebuttonmouseoverindex = -1;
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Refresh();
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}
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}
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}
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base.OnMouseMove(e);
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}
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protected override void OnMouseUp(MouseEventArgs e)
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{
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predraggedTab = null;
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base.OnMouseUp(e);
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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Graphics g = e.Graphics;
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g.SmoothingMode = SmoothingMode.HighQuality;
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g.PixelOffsetMode = PixelOffsetMode.HighQuality;
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g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.Clear(backTabColor);
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//mxd
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int highlightedtabindex = GetPointedTabIndex();
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for(var i = 0; i < TabCount; i++)
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{
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var tabrect = GetTabRect(i); //mxd
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var Header = new Rectangle(
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new Point(tabrect.Location.X + 2, tabrect.Location.Y),
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new Size(tabrect.Width, tabrect.Height));
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var HeaderSize = new Rectangle(Header.Location, new Size(Header.Width, Header.Height));
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var TextSize = new Rectangle(HeaderSize.Location.X, HeaderSize.Location.Y, HeaderSize.Width, HeaderSize.Height - 2);
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//mxd
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if(TabPages[i].ImageIndex != -1)
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{
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int offset = ImageList.Images[TabPages[i].ImageIndex].Width + 2;
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HeaderSize.X += offset;
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HeaderSize.Width -= offset;
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TextSize.X += offset + 2;
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TextSize.Width -= offset + 2;
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}
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if(i == SelectedIndex || i == highlightedtabindex)
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{
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// Draws the back of the color when it is selected
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var tabbgrect = new Rectangle(tabrect.X, tabrect.Y - 2, tabrect.Width, tabrect.Height + 2);
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using(var bgbrush = new SolidBrush(i == SelectedIndex ? activeColor : highlightColor))
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g.FillRectangle(bgbrush, tabbgrect);
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// Draws the title of the page
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using(var textbrush = new SolidBrush(selectedTextColor))
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{
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g.DrawString(TabPages[i].Text, Font, textbrush, TextSize, centersringformat);
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// Draws the closing button
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if(ShowClosingButton)
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{
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//mxd. Draw bg rect?
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var bgrect = GetCloseButtonRect(tabrect);
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if(closebuttonmouseoverindex == i)
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{
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using(var bgbrush = new SolidBrush(Color.FromArgb(96, selectedTextColor)))
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g.FillRectangle(bgbrush, bgrect);
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}
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//mxd. Draw X
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using(var closepen = new Pen(selectedTextColor, 1f))
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{
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const int offset = 4;
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int tlx = bgrect.X + offset;
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int tly = bgrect.Y + offset;
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int brx = bgrect.X + bgrect.Width - offset;
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int bry = bgrect.Y + bgrect.Height - offset;
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g.DrawLine(closepen, tlx, tly, brx, bry);
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g.DrawLine(closepen, tlx, bry, brx, tly);
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}
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}
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}
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}
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else
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{
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// Simply draw the header when it is not selected
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using(var textbrush = new SolidBrush(textColor))
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{
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g.DrawString(TabPages[i].Text, Font, textbrush, TextSize, centersringformat);
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}
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}
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//mxd. Draw icon?
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if(TabPages[i].ImageIndex != -1)
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{
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g.DrawImage(ImageList.Images[TabPages[i].ImageIndex], Header.X + 2, 3);
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}
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}
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// Draw the background of the tab control
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using(var backtabbrush = new SolidBrush(backTabColor))
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g.FillRectangle(backtabbrush, new Rectangle(0, ItemSize.Height, Width, Height - ItemSize.Height));
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// Draw the border of the TabControl
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using(var borderpen = new Pen(borderColor, 2))
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g.DrawRectangle(borderpen, new Rectangle(0, ItemSize.Height, Width, Height - ItemSize.Height));
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// Draw the horizontal line
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using(var linepen = new Pen(activeColor, 2))
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g.DrawLine(linepen, new Point(0, ItemSize.Height - 1), new Point(Width, ItemSize.Height - 1));
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}
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#endregion
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#region ======================== Methods
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//mxd
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private static Rectangle GetCloseButtonRect(Rectangle tabrect)
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{
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int height = tabrect.Height - 6;
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return new Rectangle(tabrect.Right - height - 3, 3, height, height);
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}
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private TabPage GetPointedTab()
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{
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for(var i = 0; i < TabPages.Count; i++)
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{
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if(GetTabRect(i).Contains(PointToClient(Cursor.Position)))
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{
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return TabPages[i];
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}
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}
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return null;
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}
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//mxd
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private int GetPointedTabIndex()
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{
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for(var i = 0; i < TabPages.Count; i++)
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{
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if(GetTabRect(i).Contains(PointToClient(Cursor.Position)))
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{
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return i;
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}
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}
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return -1;
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}
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private void ReplaceTabPages(TabPage Source, TabPage Destination)
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{
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var SourceIndex = TabPages.IndexOf(Source);
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var DestinationIndex = TabPages.IndexOf(Destination);
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TabPages[DestinationIndex] = Source;
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TabPages[SourceIndex] = Destination;
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if(SelectedIndex == SourceIndex)
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{
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SelectedIndex = DestinationIndex;
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}
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else if(SelectedIndex == DestinationIndex)
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{
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SelectedIndex = SourceIndex;
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}
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Refresh();
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}
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#endregion
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}
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}
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