|
public abstract DrawText ( char buffer, |
||
| buffer | char | |
| logicalTextBox | ||
| textAlignment | int | |
| return | void | |
public override void CustomDrawToThisCanvas(Canvas canvas, Rectangle updateArea)
{
if (this.textBuffer != null)
{
var prevColor = canvas.CurrentTextColor;
canvas.CurrentTextColor = textColor;
canvas.DrawText(this.textBuffer, this.X, this.Y);
canvas.CurrentTextColor = prevColor;
}
}
public override void CustomDrawToThisCanvas(Canvas canvas, Rectangle updateArea)
{
int bWidth = this.Width;
int bHeight = this.Height;
if (!this.HasStyle)
{
canvas.DrawText(this.mybuffer, new Rectangle(0, 0, bWidth, bHeight), 0);
}
else
{
TextSpanStyle style = this.SpanStyle;
switch (EvaluateFontAndTextColor(canvas, style))
{
case DIFF_FONT_SAME_TEXT_COLOR:
{
var prevFont = canvas.CurrentFont;
canvas.CurrentFont = style.FontInfo;
canvas.DrawText(this.mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
canvas.CurrentFont = prevFont;
}
break;
case DIFF_FONT_DIFF_TEXT_COLOR:
{
var prevFont = canvas.CurrentFont;
var prevColor = canvas.CurrentTextColor;
canvas.CurrentFont = style.FontInfo;
canvas.CurrentTextColor = style.FontColor;
canvas.DrawText(this.mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
canvas.CurrentFont = prevFont;
canvas.CurrentTextColor = prevColor;
}
break;
case SAME_FONT_DIFF_TEXT_COLOR:
{
var prevColor = canvas.CurrentTextColor;
canvas.DrawText(this.mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
canvas.CurrentTextColor = prevColor;
}
break;
default:
{
canvas.DrawText(this.mybuffer,
new Rectangle(0, 0, bWidth, bHeight),
style.ContentHAlign);
}
break;
}
}
}
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++;
}
}
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;
}
}
public override void DrawChildContent(Canvas canvas, Rectangle updateArea)
{
//GridCell leftTopGridItem = GetGridItemByPosition(updateArea.Left, updateArea.Top);
//if (leftTopGridItem == null)
//{
// return;
//}
//GridCell rightBottomGridItem = GetGridItemByPosition(updateArea.Right, updateArea.Bottom);
//if (rightBottomGridItem == null)
//{
// return;
//}
//TODO: temp fixed, review here again,
GridCell leftTopGridItem = this.GetCell(0, 0);
if (leftTopGridItem == null)
{
return;
}
GridCell rightBottomGridItem = this.GetCell(this.RowCount - 1, this.ColumnCount - 1);
if (rightBottomGridItem == null)
{
return;
}
this.BeginDrawingChildContent();
GridColumn startColumn = leftTopGridItem.column;
GridColumn currentColumn = startColumn;
GridRow startRow = leftTopGridItem.row;
GridColumn stopColumn = rightBottomGridItem.column.NextColumn;
GridRow stopRow = rightBottomGridItem.row.NextRow;
int startRowId = startRow.RowIndex;
int stopRowId = 0;
if (stopRow == null)
{
stopRowId = gridRows.Count;
}
else
{
stopRowId = stopRow.RowIndex;
}
int n = 0;
var prevColor = canvas.StrokeColor;
canvas.StrokeColor = Color.Gray;
//canvas.DrawLine(0, 0, 100, 100);
//canvas.DrawLine(0, 100, 100, 0);
//if (startRowId > 0)
//{
// Console.WriteLine(startRowId);
//}
//canvas.DrawRectangle(Color.Red, updateArea.Left, updateArea.Top, updateArea.Width, updateArea.Height);
do
{
GridCell startGridItemInColumn = currentColumn.GetCell(startRowId);
GridCell stopGridItemInColumn = currentColumn.GetCell(stopRowId - 1);
//draw vertical line
canvas.DrawLine(
startGridItemInColumn.Right,
startGridItemInColumn.Y,
stopGridItemInColumn.Right,
stopGridItemInColumn.Bottom);
if (n == 0)
{
//draw horizontal line
int horizontalLineWidth = rightBottomGridItem.Right - startGridItemInColumn.X;
for (int i = startRowId; i < stopRowId; i++)
{
GridCell gridItem = currentColumn.GetCell(i);
int x = gridItem.X;
int gBottom = gridItem.Bottom;
canvas.DrawLine(
x, gBottom,
x + horizontalLineWidth, gBottom);
}
n = 1;
}
currentColumn = currentColumn.NextColumn;
} while (currentColumn != stopColumn);
canvas.StrokeColor = prevColor;
currentColumn = startColumn;
//----------------------------------------------------------------------------
do
{
for (int i = startRowId; i < stopRowId; i++)
{
GridCell gridItem = currentColumn.GetCell(i);
if (gridItem != null && gridItem.HasContent)
{
int x = gridItem.X;
int y = gridItem.Y;
canvas.OffsetCanvasOrigin(x, y);
updateArea.Offset(-x, -y);
var renderContent = gridItem.ContentElement as RenderElement;
if (renderContent != null)
{
if (canvas.PushClipAreaRect(gridItem.Width, gridItem.Height, ref updateArea))
{
renderContent.DrawToThisCanvas(canvas, updateArea);
}
canvas.PopClipAreaRect();
}
canvas.OffsetCanvasOrigin(-x, -y);
updateArea.Offset(x, y);
}
#if DEBUG
else
{
canvas.DrawText(new char[] { '.' }, gridItem.X, gridItem.Y);
}
#endif
}
currentColumn = currentColumn.NextColumn;
} while (currentColumn != stopColumn);
this.FinishDrawingChildContent();
}