private void InitVisual(int r, int c, IGrid <string> data, TextVisual visual)
{
visual.Row = r;
visual.Column = c;
visual.Text = data[r, c];
visual.Typeface = Typeface;
visual.FontSize = FontSize; // FontSize here is in device independent pixel, and Visual's FormattedText API uses the same unit
visual.Foreground = Foreground;
}
internal void MeasurePoints(IPoints points, GridRange newViewport, IGrid <string> data, bool refresh)
{
var orgGrid = _visualGrid;
_visualGrid = new Grid <TextVisual>(
newViewport,
(r, c) => {
if (!refresh && _dataViewport.Contains(r, c))
{
return(orgGrid[r, c]);
}
var visual = new TextVisual();
visual.Row = r;
visual.Column = c;
visual.Text = data[r, c];
visual.Typeface = Typeface;
visual.FontSize = FontSize; // FontSize here is in device independent pixel, and Visual's FormattedText API uses the same unit
visual.Foreground = Foreground;
return(visual);
});
_visualChildren.Clear();
foreach (int c in newViewport.Columns.GetEnumerable())
{
foreach (int r in newViewport.Rows.GetEnumerable())
{
var visual = _visualGrid[r, c];
visual.Draw();
points.Width[c] = visual.Size.Width + (visual.Margin * 2) + GridLineThickness;
points.Height[r] = visual.Size.Height + (visual.Margin * 2) + GridLineThickness;
_visualChildren.Add(_visualGrid[r, c]);
}
}
_dataViewport = newViewport;
}
private void CreateGrid(GridRange newViewport, IGrid <string> data, GridUpdateType updateType)
{
var orgGrid = _visualGrid;
if (Header)
{
_visualGrid = new Grid <TextVisual>(
newViewport,
(r, c) => {
if (updateType == GridUpdateType.Sort)
{
return(orgGrid[r, c]);
}
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c))
{
return(orgGrid[r, c]);
}
var visual = new HeaderTextVisual(c);
InitVisual(r, c, data, visual);
return(visual);
});
}
else
{
_visualGrid = new Grid <TextVisual>(
newViewport,
(r, c) => {
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c))
{
return(orgGrid[r, c]);
}
var visual = new TextVisual();
InitVisual(r, c, data, visual);
return(visual);
});
}
}
private void InitVisual(int r, int c, IGrid<string> data, TextVisual visual) {
visual.Row = r;
visual.Column = c;
visual.Text = data[r, c];
visual.Typeface = Typeface;
visual.FontSize = FontSize; // FontSize here is in device independent pixel, and Visual's FormattedText API uses the same unit
visual.Foreground = Foreground;
}
private void CreateGrid(GridRange newViewport, IGrid<string> data, GridUpdateType updateType) {
var orgGrid = _visualGrid;
if (Header) {
_visualGrid = new Grid<TextVisual>(
newViewport,
(r, c) => {
if (updateType == GridUpdateType.Sort) {
return orgGrid[r, c];
}
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c)) {
return orgGrid[r, c];
}
var visual = new HeaderTextVisual(c);
InitVisual(r, c, data, visual);
return visual;
});
} else {
_visualGrid = new Grid<TextVisual>(
newViewport,
(r, c) => {
if (updateType != GridUpdateType.Refresh && _dataViewport.Contains(r, c)) {
return orgGrid[r, c];
}
var visual = new TextVisual();
InitVisual(r, c, data, visual);
return visual;
});
}
}
internal void MeasurePoints(IPoints points, GridRange newViewport, IGrid<string> data, bool refresh) {
var orgGrid = _visualGrid;
_visualGrid = new Grid<TextVisual>(
newViewport,
(r, c) => {
if (!refresh && _dataViewport.Contains(r, c)) {
return orgGrid[r, c];
}
var visual = new TextVisual();
visual.Row = r;
visual.Column = c;
visual.Text = data[r, c];
visual.Typeface = Typeface;
visual.FontSize = FontSize; // FontSize here is in device independent pixel, and Visual's FormattedText API uses the same unit
visual.Foreground = Foreground;
return visual;
});
_visualChildren.Clear();
foreach (int c in newViewport.Columns.GetEnumerable()) {
foreach (int r in newViewport.Rows.GetEnumerable()) {
var visual = _visualGrid[r, c];
visual.Draw();
points.Width[c] = visual.Size.Width + (visual.Margin * 2) + GridLineThickness;
points.Height[r] = visual.Size.Height + (visual.Margin * 2) + GridLineThickness;
_visualChildren.Add(_visualGrid[r, c]);
}
}
_dataViewport = newViewport;
}