/// <summary>
/// Redraws the non client area.
/// </summary>
/// <param name="invalidateBuffer">if set to <c>true</c> the buffer is invalidated.</param>
/// <returns>true if the original painting should be suppressed otherwise false.</returns>
protected internal virtual bool OnNcPaint(bool invalidateBuffer)
{
if (!IsProcessNcArea)
{
return(false);
}
bool result = false;
try
{
SkinningFormPaintData paintData = CreatePaintData();
// create painting meta data for caption buttons
if (_captionButtons.Count > 0)
{
paintData.CaptionButtons = new CaptionButtonPaintData[_captionButtons.Count];
for (int i = 0; i < _captionButtons.Count; i++)
{
CaptionButton button = _captionButtons[i];
CaptionButtonPaintData buttonData = new CaptionButtonPaintData()
{
BaseData = new PaintDataBase(_basePaintParas._bufferGraphics.Graphics, button.Bounds),
Pressed = button.Pressed,
Hovered = button.Hovered,
Enabled = button.Enabled,
HitTest = button.HitTest
};
paintData.CaptionButtons[i] = buttonData;
}
}
// paint
result = OnNcPaint(paintData);
// render buffered graphics
if (_basePaintParas._bufferGraphics != null)
{
_basePaintParas._bufferGraphics.Render(_basePaintParas._g);
}
}
catch (System.Exception)
{
result = false;
}
_basePaintParas.Reset();
return(result);
}
protected internal override SkinningFormPaintData CreatePaintData()
{
// Create painting meta data for form
SkinningFormPaintData paintData = new SkinningFormPaintData()
{
BaseData = base.CreatePaintDataBase(),
Borders = SkinSystemInfo.BorderSize,
CaptionHeight = SkinSystemInfo.CaptionHeight,
//CaptionHeight =50,
Active = FormIsActive,
HasMenu = SkinSystemInfo.IsHasMenu,
IconSize = SystemInformation.SmallIconSize,
IsSmallCaption = false,
Text = SkiningForm.Text
};
return(paintData);
}
/// <summary> /// Called when the non client area of the form needs to be painted. /// </summary> /// <param name="form">The form which gets drawn.</param> /// <param name="paintData">The paint data to use for drawing.</param> /// <returns><code>true</code> if the original painting should be suppressed, otherwise <code>false</code></returns> protected internal abstract bool OnNcPaint(SkinningFormPaintData paintData);
protected internal override bool OnNcPaint(SkinningFormPaintData paintData)
{
if (SkiningForm == null)
{
return(false);
}
bool isMaximized = SkiningForm.WindowState == FormWindowState.Maximized;
bool isMinimized = SkiningForm.WindowState == FormWindowState.Minimized;
// prepare bounds
Rectangle windowBounds = paintData.BaseData.Bounds;
windowBounds.Location = Point.Empty;
Rectangle captionBounds = windowBounds;
Size borderSize = paintData.Borders;
captionBounds.Height = borderSize.Height + paintData.CaptionHeight;
Rectangle textBounds = captionBounds;
Rectangle iconBounds = captionBounds;
iconBounds.Inflate(-borderSize.Width, 0);
iconBounds.Y += borderSize.Height;
iconBounds.Height -= borderSize.Height;
// Draw Caption
bool active = paintData.Active;
_skinSetting._formCaption.Draw(paintData.BaseData.Graphics, captionBounds, active ? 0 : 1);
// Paint Icon
if (paintData.HasMenu && SkiningForm.Icon != null)
{
iconBounds.Size = paintData.IconSize;
Icon tmpIcon = new Icon(SkiningForm.Icon, paintData.IconSize);
iconBounds.Y = captionBounds.Y + (captionBounds.Height - iconBounds.Height) / 2;
paintData.BaseData.Graphics.DrawIcon(tmpIcon, iconBounds);
textBounds.X = iconBounds.Right;
iconBounds.Width -= iconBounds.Right;
}
// Paint Icons
foreach (CaptionButtonPaintData data in paintData.CaptionButtons)
{
ControlPaintHelper painter = paintData.IsSmallCaption ? _skinSetting._formCaptionButtonSmall : _skinSetting._formCaptionButton;
// Get Indices for imagestrip
int iconIndex = 0;
int backgroundIndex = 0;
FormExtenders.GetButtonData(data, paintData.Active, out iconIndex, out backgroundIndex);
// get imageStrip for button icon
ImageStrip iconStrip;
switch (data.HitTest)
{
case HitTest.HTCLOSE:
iconStrip = paintData.IsSmallCaption ? _skinSetting._formCloseIconSmall : _skinSetting._formCloseIcon;
break;
case HitTest.HTMAXBUTTON:
if (isMaximized)
{
iconStrip = paintData.IsSmallCaption ? _skinSetting._formRestoreIconSmall : _skinSetting._formRestoreIcon;
}
else
{
iconStrip = paintData.IsSmallCaption ? _skinSetting._formMaximizeIconSmall : _skinSetting._formMaximizeIcon;
}
break;
case HitTest.HTMINBUTTON:
if (isMinimized)
{
iconStrip = paintData.IsSmallCaption ? _skinSetting._formRestoreIconSmall : _skinSetting._formRestoreIcon;
}
else
{
iconStrip = paintData.IsSmallCaption ? _skinSetting._formMinimizeIconSmall : _skinSetting._formMinimizeIcon;
}
break;
default:
continue;
}
// draw background
if (backgroundIndex >= 0)
{
painter.Draw(paintData.BaseData.Graphics, data.BaseData.Bounds, backgroundIndex);
}
// draw Icon
Rectangle b = data.BaseData.Bounds;
b.Y += 1;
if (iconIndex >= 0)
{
iconStrip.Draw(paintData.BaseData.Graphics, iconIndex, b, Rectangle.Empty,
DrawingAlign.Center, DrawingAlign.Center);
}
// Ensure textbounds
textBounds.Width -= data.BaseData.Bounds.Width;
}
// draw text
if (!string.IsNullOrEmpty(paintData.Text) && !textBounds.IsEmpty)
{
TextFormatFlags flags = TextFormatFlags.VerticalCenter | TextFormatFlags.EndEllipsis | TextFormatFlags.PreserveGraphicsClipping;
if (_skinSetting._formIsTextCentered)
{
flags = flags | TextFormatFlags.HorizontalCenter;
}
Font font = paintData.IsSmallCaption ? SystemFonts.SmallCaptionFont : SystemFonts.CaptionFont;
TextRenderer.DrawText(paintData.BaseData.Graphics, paintData.Text, font, textBounds,
paintData.Active ? _skinSetting._formActiveTitleColor : _skinSetting._formInactiveTitleColor, flags);
}
// exclude caption area from painting
Region region = paintData.BaseData.Graphics.Clip;
region.Exclude(captionBounds);
paintData.BaseData.Graphics.Clip = region;
// Paint borders and corners
_skinSetting._formBorder.DrawFrame(paintData.BaseData.Graphics, windowBounds, paintData.Active ? 0 : 1);
paintData.BaseData.Graphics.ResetClip();
return(true);
}
