protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e)
{
TabStrip tabStrip = e.ToolStrip as TabStrip;
ToolStripButton button = e.Item as ToolStripButton;
Rectangle bounds = new Rectangle(Point.Empty, e.Item.Size);
if (tabStrip != null)
{
System.Windows.Forms.VisualStyles.TabItemState tabState = System.Windows.Forms.VisualStyles.TabItemState.Normal;
if (button.Checked)
{
tabState |= System.Windows.Forms.VisualStyles.TabItemState.Selected;
}
if (button.Selected)
{
tabState |= System.Windows.Forms.VisualStyles.TabItemState.Hot;
}
TabRenderer.DrawTabItem(e.Graphics, bounds, tabState);
if (button.Checked)
{
VisualStyleRenderer vsr = new VisualStyleRenderer(VisualStyleElement.Tab.TabItem.Hot);
Padding borderPadding = button.Padding;
borderPadding.Top += 4;
borderPadding.Bottom += 2;
borderPadding.Left -= 2;
borderPadding.Right -= 2;
Rectangle rect = LayoutUtils.DeflateRect(bounds, borderPadding);
ControlPaint.DrawFocusRectangle(e.Graphics, rect);
}
}
else
{
base.OnRenderButtonBackground(e);
}
}
protected override IComponent[] CreateComponentsCore(IDesignerHost host)
{
IComponent[] components = base.CreateComponentsCore(host);
Control parentControl = null;
ControlDesigner parentControlDesigner = null;
TabStrip tabStrip = null;
IComponentChangeService changeSvc = (IComponentChangeService)host.GetService(typeof(IComponentChangeService));
// fish out the parent we're adding the TabStrip to.
if (components.Length > 0 && components[0] is TabStrip)
{
tabStrip = components[0] as TabStrip;
ITreeDesigner tabStripDesigner = host.GetDesigner(tabStrip) as ITreeDesigner;
parentControlDesigner = tabStripDesigner.Parent as ControlDesigner;
if (parentControlDesigner != null)
{
parentControl = parentControlDesigner.Control;
}
}
// Create a ControlSwitcher on the same parent.
if (host != null)
{
TabPageSwitcher controlSwitcher = null;
DesignerTransaction t = null;
try {
try {
t = host.CreateTransaction("add tabswitcher");
}
catch (CheckoutException ex) {
if (ex == CheckoutException.Canceled)
{
return(components);
}
throw ex;
}
MemberDescriptor controlsMember = TypeDescriptor.GetProperties(parentControlDesigner)["Controls"];
controlSwitcher = host.CreateComponent(typeof(TabPageSwitcher)) as TabPageSwitcher;
if (changeSvc != null)
{
changeSvc.OnComponentChanging(parentControl, controlsMember);
changeSvc.OnComponentChanged(parentControl, controlsMember, null, null);
}
Dictionary <string, object> propertyValues = new Dictionary <string, object>();
propertyValues["Location"] = new Point(tabStrip.Left, tabStrip.Bottom + 3);
propertyValues["TabStrip"] = tabStrip;
SetProperties(controlSwitcher, propertyValues, host);
}
finally {
if (t != null)
{
t.Commit();
}
}
if (controlSwitcher != null)
{
IComponent[] newComponents = new IComponent[components.Length + 1];
Array.Copy(components, newComponents, components.Length);
newComponents[newComponents.Length - 1] = controlSwitcher;
return(newComponents);
}
}
return(components);
}
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);
}
}
public TabStripLayoutEngine(TabStrip tabStrip) {
this.tabStrip = tabStrip;
}
public TabStripLayoutEngine(TabStrip tabStrip)
{
this.tabStrip = tabStrip;
}