|
public abstract DrawRectangle ( |
||
| color | ||
| left | float | |
| top | float | |
| width | float | |
| height | float | |
| return | void | |
protected override void DrawBoxContent(Canvas canvas, Rectangle updateArea)
{
//draw this ...
var penwidth = canvas.StrokeWidth;
int borderWidth = 5;
int halfBorder = borderWidth / 2;
canvas.StrokeWidth = borderWidth;
canvas.DrawRectangle(
Color.OrangeRed,
halfBorder, halfBorder,
this.Width - borderWidth,
this.Height - borderWidth);
canvas.StrokeWidth = penwidth;
}
/// <summary>
/// Draw image failed to load icon.
/// </summary>
/// <param name="g">the device to draw into</param>
/// <param name="r">the rectangle to draw icon in</param>
public static void DrawImageErrorIcon(Canvas g, RectangleF r)
{
g.DrawRectangle(Color.LightGray, r.Left + 2, r.Top + 2, 15, 15);
var image = GetErrorImage();
g.DrawImage(image, new RectangleF(r.Left + 3, r.Top + 3, image.Width, image.Height));
}
public void dbugShowRenderPart(Canvas canvasPage, Rectangle updateArea)
{
RootGraphic visualroot = this.dbugVRoot;
if (visualroot.dbug_ShowRootUpdateArea)
{
canvasPage.FillRectangle(Color.FromArgb(50, Color.Black),
updateArea.Left, updateArea.Top,
updateArea.Width - 1, updateArea.Height - 1);
canvasPage.FillRectangle(Color.White,
updateArea.Left, updateArea.Top, 5, 5);
canvasPage.DrawRectangle(Color.Yellow,
updateArea.Left, updateArea.Top,
updateArea.Width - 1, updateArea.Height - 1);
Color c_color = canvasPage.CurrentTextColor;
canvasPage.CurrentTextColor = Color.White;
canvasPage.DrawText(visualroot.dbug_RootUpdateCounter.ToString().ToCharArray(), updateArea.Left, updateArea.Top);
if (updateArea.Height > 25)
{
canvasPage.DrawText(visualroot.dbug_RootUpdateCounter.ToString().ToCharArray(), updateArea.Left, updateArea.Top + (updateArea.Height - 20));
}
canvasPage.CurrentTextColor = c_color;
visualroot.dbug_RootUpdateCounter++;
}
}
///// <summary>
///// Get cached solid brush instance for the given color.
///// </summary>
///// <param name="color">the color to get brush for</param>
///// <returns>brush instance</returns>
//public static Brush GetSolidBrush(Color color)
//{
// if (color == Color.White)
// {
// return Brushes.White;
// }
// else if (color == Color.Black)
// {
// return Brushes.Black;
// }
// else if (!IsColorVisible(color))
// {
// return Brushes.Transparent;
// }
// else
// {
// Brush brush;
// if (!_brushesCache.TryGetValue(color, out brush))
// {
// _brushesCache[color] = brush = CurrentGraphicPlatform.CreateSolidBrush(color);
// }
// return brush;
// }
//}
///// <summary>
///// Get cached pen instance for the given color.
///// </summary>
///// <param name="color">the color to get pen for</param>
///// <returns>pen instance</returns>
//public static Pen GetPen(GraphicPlatform p, Color color)
//{
// Pen pen;
// if (!_penCache.TryGetValue(color, out pen))
// {
// pen = p.CreateSolidPen(color);
// _penCache[color] = pen;
// }
// else
// {
// pen.Width = 1;
// }
// return pen;
//}
/// <summary>
/// Draw image loading icon.
/// </summary>
/// <param name="g">the device to draw into</param>
/// <param name="r">the rectangle to draw icon in</param>
public static void DrawImageLoadingIcon(Canvas g, RectangleF r)
{
g.DrawRectangle(Color.LightGray, r.Left + 3, r.Top + 3, 13, 14);
var image = GetLoadImage();
g.DrawImage(image, new RectangleF(r.Left + 4, r.Top + 4, image.Width, image.Height));
}
void debug_RecordPostDrawInfo(Canvas canvasPage)
{
if (dbugVRoot.dbug_ShowElementOutline)
{
canvasPage.DrawRectangle(Color.Red,
0, 0, this.Width - 1, this.Height - 1);
}
if (dbugVRoot.dbug_ForceShowObjectIden)
{
var prevColor = canvasPage.CurrentTextColor;
canvasPage.CurrentTextColor = Color.Blue;
canvasPage.DrawText(
("<< " + dbug_FullElementDescription()).ToCharArray()
, 0, dbug_element_code_y);
canvasPage.CurrentTextColor = prevColor;
}
else if (dbugVRoot.dbug_ShowObjectIden && !dbug_hide_objIden)
{
var prevColor = canvasPage.CurrentTextColor;
canvasPage.CurrentTextColor = Color.Blue;
canvasPage.DrawText(
("<< " + dbug_FullElementDescription()).ToCharArray()
, 0, dbug_element_code_y);
canvasPage.CurrentTextColor = prevColor;
}
}
