using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Windows.Forms.VisualStyles;
using System.Drawing.Drawing2D;
namespace TabStripApp {
class TabStripProfessionalRenderer : ToolStripProfessionalRenderer {
private const int BOTTOM_LEFT = 0;
private const int TOP_LEFT = 1;
private const int TOP_RIGHT = 2;
private const int BOTTOM_RIGHT = 3;
public TabStripProfessionalRenderer() {
this.RoundedEdges = false;
}
protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e) {
TabStrip tabStrip = e.ToolStrip as TabStrip;
Tab tab = e.Item as Tab;
if (tab == null) {
base.OnRenderButtonBackground(e);
return;
}
Rectangle bounds = new Rectangle(Point.Empty, e.Item.Size);
Graphics g = e.Graphics;
// we want an even rise in the angle, for every pixel we have to go up,
// we need to go over one pixel. This will give us a straig
if (tabStrip != null) {
Point[] tabPolygonPoints = new Point[] {
new Point(0, bounds.Bottom), // lower left hand corner
new Point(tab.Height,bounds.Top), // upper left hand corner
new Point(bounds.Right-1, bounds.Top), // upper right hand corner
new Point(bounds.Right-1, bounds.Bottom) // lower right hand corner
};
Point[] fillTabPolygonPoints = new Point[] {
tabPolygonPoints[BOTTOM_LEFT],
new Point(tabPolygonPoints[TOP_LEFT].X -2, tabPolygonPoints[TOP_LEFT].Y +2),
new Point(tabPolygonPoints[TOP_LEFT].X +2, tabPolygonPoints[TOP_LEFT].Y),
tabPolygonPoints[TOP_RIGHT],
tabPolygonPoints[BOTTOM_RIGHT]
};
Color startColor = ColorTable.MenuStripGradientEnd;
Color endColor = ColorTable.MenuStripGradientBegin;
if (tab.Selected && !tab.Checked) {
startColor = ColorTable.ButtonSelectedGradientBegin;
endColor = ColorTable.ButtonSelectedGradientEnd;
}
using (Brush b = new LinearGradientBrush(bounds, startColor, endColor, LinearGradientMode.Vertical)) {
g.FillPolygon(b, fillTabPolygonPoints);
}
using (Pen outerBlueBorderPen = new Pen(ColorTable.ButtonSelectedBorder)) {
using (Pen innerWhiteBorderPen = new Pen(ColorTable.GripLight)) {
//
// draw left edge
//
// Bw
// Bw
// Bw
Point edgeStart = tabPolygonPoints[BOTTOM_LEFT];
Point edgeStop = tabPolygonPoints[TOP_LEFT];
edgeStop.Offset(-2,2); // stop one pixels early.
g.DrawLine(outerBlueBorderPen, edgeStart, edgeStop);
// draw white shadow line along left edge
edgeStart.Offset(1,0);
edgeStop.Offset(1,0);
g.DrawLine(innerWhiteBorderPen, edgeStart, edgeStop);
//
// draw rounded corner
// TOP_LEFT
// v
// [BBBBBBBBBBBBBBBBBBBBBB] <- top edge
// BB[wwwwwwwwwwwwwwwwwwwwww] <- top edge shadow (row 2)
// BBww (row 3)
// Bww (row 4)
// draw row 2
edgeStart = tabPolygonPoints[TOP_LEFT];
edgeStart.Offset(0,1);
edgeStop = edgeStart;
edgeStop.X += 1;
g.DrawLine(outerBlueBorderPen, edgeStart, edgeStop);
// draw row 3
edgeStart.Offset(-2, 1);
edgeStop.Offset(-2,1);
g.DrawLine(outerBlueBorderPen, edgeStart, edgeStop);
edgeStart.Offset(2, 0);
edgeStop.Offset(2,0);
g.DrawLine(innerWhiteBorderPen, edgeStart, edgeStop);
// draw row 4
edgeStart.Offset(-2, 1);
edgeStop.Offset(-2, 1);
g.DrawLine(innerWhiteBorderPen, edgeStart, edgeStop);
//
// draw top edge
//
// TOP_LEFT
// v
// [BBBBBBBBBBBBBBBBBBBBBB] <- top edge
// BB[wwwwwwwwwwwwwwwwwwwwww] <- top edge shadow (row 2)
edgeStart = tabPolygonPoints[TOP_LEFT];
edgeStop = tabPolygonPoints[TOP_RIGHT];
// scoot over two pixels
edgeStart.Offset(2, 0);
edgeStop.Offset(-2, 0);
g.DrawLine(outerBlueBorderPen, edgeStart, edgeStop);
// scoot down to paint white shadow line
edgeStart.Offset(0, 1);
edgeStop.Offset(0, 1);
g.DrawLine(innerWhiteBorderPen, edgeStart, edgeStop);
//
// draw right edge
// TOP_RIGHT
// v
// bB
// bB
// bB
// bB
edgeStart = new Point (tabPolygonPoints[TOP_RIGHT].X, tabPolygonPoints[TOP_RIGHT].Y+2);
edgeStop = tabPolygonPoints[BOTTOM_RIGHT];
// draw dark blue lines
g.DrawLine(outerBlueBorderPen, edgeStart, edgeStop);
using (Brush b = new SolidBrush(outerBlueBorderPen.Color)) {
g.FillRectangle(b,new Rectangle(edgeStart.X - 1, edgeStart.Y - 1, 1, 1));
}
// draw light blue lines
using (Pen innerBlueBorderPen = new Pen(ColorTable.ButtonPressedHighlight)) {
edgeStart.Offset(-1, 0);
edgeStop.Offset(-1, 0);
g.DrawLine(innerBlueBorderPen, edgeStart, edgeStop);
using (Brush b = new SolidBrush(innerBlueBorderPen.Color)) {
g.FillRectangle(b, new Rectangle(edgeStart.X - 1, edgeStart.Y - 1, 1, 1));
}
}
}
}
tabPolygonPoints[0].Offset(1, 0);
tabPolygonPoints[1].Offset(1, 0);
}
else {
base.OnRenderButtonBackground(e);
}
}
protected override void OnRenderToolStripBorder(ToolStripRenderEventArgs e) {
TabStrip tabStrip = e.ToolStrip as TabStrip;
using (Pen outerBlueBorderPen = new Pen(ColorTable.ButtonSelectedBorder)) {
using (Pen innerWhiteBorderPen = new Pen(ColorTable.GripLight)) {
if (tabStrip != null) {
if (tabStrip.SelectedTab != null) {
// left border coords
Point borderStart1 = new Point(0, tabStrip.SelectedTab.Bounds.Bottom);
Point borderStop1 = new Point(tabStrip.SelectedTab.Bounds.Left, tabStrip.SelectedTab.Bounds.Bottom);
// right border coords
Point borderStart2 = new Point(tabStrip.SelectedTab.Bounds.Right - 1, tabStrip.SelectedTab.Bounds.Bottom);
Point borderStop2 = new Point(tabStrip.ClientRectangle.Right, tabStrip.SelectedTab.Bounds.Bottom);
e.Graphics.DrawLine(outerBlueBorderPen,borderStart1, borderStop1);
e.Graphics.DrawLine(outerBlueBorderPen,borderStart2, borderStop2);
// shift all points down one to draw the white line
borderStop1.Offset(0,1);
borderStart1.Offset(0,1);
borderStart2.Offset(0,1);
borderStop2.Offset(0,1);
e.Graphics.DrawLine(innerWhiteBorderPen, borderStart1, borderStop1);
e.Graphics.DrawLine(innerWhiteBorderPen, borderStart2, borderStop2);
}
}
}
}
}
}
}
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