/// <summary>
/// Provides custom drawing to the wizard page.
/// </summary>
protected override void OnPaint(PaintEventArgs e)
{
// raise paint event
base.OnPaint(e);
// check if custom style
if (this.style == WizardPageStyle.Custom)
{
// filter out
return;
}
// init graphic resources
Rectangle headerRect = this.ClientRectangle;
Rectangle glyphRect = Rectangle.Empty;
Rectangle titleRect = Rectangle.Empty;
Rectangle descriptionRect = Rectangle.Empty;
// determine text format
StringFormat textFormat = StringFormat.GenericDefault;
textFormat.LineAlignment = StringAlignment.Near;
textFormat.Alignment = StringAlignment.Near;
textFormat.Trimming = StringTrimming.EllipsisCharacter;
Wizard parentWizard = ParentWizard;
switch (this.style)
{
case WizardPageStyle.Standard:
// adjust height for header
headerRect.Height = HEADER_AREA_HEIGHT;
// draw header border
ControlPaint.DrawBorder3D(e.Graphics, headerRect, Border3DStyle.Etched, Border3DSide.Bottom);
// adjust header rect not to overwrite the border
headerRect.Height -= SystemInformation.Border3DSize.Height;
// fill header with window color
e.Graphics.FillRectangle(SystemBrushes.Window, headerRect);
// determine header image regtangle
int headerPadding = (int)Math.Floor((double)(HEADER_AREA_HEIGHT - HEADER_GLYPH_SIZE) / 2);
glyphRect.Location = new Point(this.Width - HEADER_GLYPH_SIZE - headerPadding, headerPadding);
glyphRect.Size = new Size(HEADER_GLYPH_SIZE, HEADER_GLYPH_SIZE);
// determine the header content
Image headerImage = null;
Font headerFont = this.Font;
Font headerTitleFont = this.Font;
if (parentWizard != null)
{
// get content from parent wizard, if exists
headerImage = parentWizard.HeaderImage;
headerFont = parentWizard.HeaderFont;
headerTitleFont = parentWizard.HeaderTitleFont;
}
// check if we have an image
if (headerImage == null)
{
if (ShowGlyphPlaceHolder)
{
// display a focus rect as a place holder
ControlPaint.DrawFocusRectangle(e.Graphics, glyphRect);
}
}
else
{
// draw header image
e.Graphics.DrawImage(headerImage, glyphRect);
}
// determine title height
int headerTitleHeight = (int)Math.Ceiling(e.Graphics.MeasureString(this.title, headerTitleFont, 0, textFormat).Height);
// calculate text sizes
titleRect.Location = new Point(HEADER_TEXT_PADDING,
HEADER_TEXT_PADDING);
titleRect.Size = new Size(glyphRect.Left - HEADER_TEXT_PADDING,
headerTitleHeight);
descriptionRect.Location = titleRect.Location;
descriptionRect.Y += headerTitleHeight + HEADER_TEXT_PADDING / 2;
descriptionRect.Size = new Size(titleRect.Width,
HEADER_AREA_HEIGHT - descriptionRect.Y);
// draw tilte text (single line, truncated with ellipsis)
e.Graphics.DrawString(this.title,
headerTitleFont,
SystemBrushes.WindowText,
titleRect,
textFormat);
// draw description text (multiple lines if needed)
e.Graphics.DrawString(this.description,
headerFont,
SystemBrushes.WindowText,
descriptionRect,
textFormat);
break;
case WizardPageStyle.Welcome:
case WizardPageStyle.Finish:
// fill whole page with window color
e.Graphics.FillRectangle(SystemBrushes.Window, headerRect);
// determine welcome image regtangle
glyphRect.Location = Point.Empty;
glyphRect.Size = new Size(WELCOME_GLYPH_WIDTH, this.Height);
// determine the icon that should appear on the welcome page
Image welcomeImage = null;
Font welcomeFont = this.Font;
Font welcomeTitleFont = this.Font;
if (ParentWizard != null)
{
// get content from parent wizard, if exists
welcomeImage = parentWizard.WelcomeImage;
welcomeFont = parentWizard.WelcomeFont;
welcomeTitleFont = parentWizard.WelcomeTitleFont;
}
// check if we have an image
if (welcomeImage == null)
{
if (ShowGlyphPlaceHolder)
{
// display a focus rect as a place holder
ControlPaint.DrawFocusRectangle(e.Graphics, glyphRect);
}
}
else
{
// draw welcome page image
e.Graphics.DrawImage(welcomeImage, glyphRect);
}
// calculate text sizes
titleRect.Location = new Point(WELCOME_GLYPH_WIDTH + HEADER_TEXT_PADDING,
HEADER_TEXT_PADDING);
titleRect.Width = this.Width - titleRect.Left - HEADER_TEXT_PADDING;
// determine title height
int welcomeTitleHeight = (int)Math.Ceiling(e.Graphics.MeasureString(this.title, welcomeTitleFont, titleRect.Width, textFormat).Height);
descriptionRect.Location = titleRect.Location;
descriptionRect.Y += welcomeTitleHeight + HEADER_TEXT_PADDING;
descriptionRect.Size = new Size(this.Width - descriptionRect.Left - HEADER_TEXT_PADDING,
this.Height - descriptionRect.Y);
// draw tilte text (multiple lines if needed)
e.Graphics.DrawString(this.title,
welcomeTitleFont,
SystemBrushes.WindowText,
titleRect,
textFormat);
// draw description text (multiple lines if needed)
e.Graphics.DrawString(this.description,
welcomeFont,
SystemBrushes.WindowText,
descriptionRect,
textFormat);
break;
}
}
/// <summary>
/// Creates a new instance of the <see cref="WizardPagesCollection"/> class.
/// </summary>
/// <param name="owner">A Wizard object that owns the collection.</param>
internal WizardPagesCollection(Wizard owner)
{
this.owner = owner;
}