//FIXME: we could use the expose event's clipbox to make the drawing more efficient
void DrawList(Gdk.EventExpose args)
{
var window = args.Window;
int winWidth, winHeight;
window.GetSize(out winWidth, out winHeight);
int ypos = margin;
int lineWidth = winWidth - margin * 2;
int xpos = margin + padding;
//avoid recreating the GC objects that we use multiple times
var textGCNormal = this.Style.TextGC(StateType.Normal);
var fgGCNormal = this.Style.ForegroundGC(StateType.Normal);
int n = 0;
n = (int)(vadj.Value / rowHeight);
while (ypos < winHeight - margin && n < win.DataProvider.Count)
{
bool hasMarkup = false;
IMarkupListDataProvider <T> markupListDataProvider = win.DataProvider as IMarkupListDataProvider <T>;
if (markupListDataProvider != null)
{
if (markupListDataProvider.HasMarkup(n))
{
layout.SetMarkup(markupListDataProvider.GetMarkup(n) ?? "<null>");
hasMarkup = true;
}
}
if (!hasMarkup)
{
layout.SetText(win.DataProvider.GetText(n) ?? "<null>");
}
Gdk.Pixbuf icon = win.DataProvider.GetIcon(n);
int iconHeight, iconWidth;
if (icon != null)
{
iconWidth = icon.Width;
iconHeight = icon.Height;
}
else if (!Gtk.Icon.SizeLookup(Gtk.IconSize.Menu, out iconWidth, out iconHeight))
{
iconHeight = iconWidth = 24;
}
int wi, he, typos, iypos;
layout.GetPixelSize(out wi, out he);
typos = he < rowHeight ? ypos + (rowHeight - he) / 2 : ypos;
iypos = iconHeight < rowHeight ? ypos + (rowHeight - iconHeight) / 2 : ypos;
if (n == selection)
{
if (!disableSelection)
{
args.Window.DrawRectangle(this.Style.BaseGC(StateType.Selected),
true, margin, ypos, lineWidth, he + padding);
window.DrawLayout(this.Style.TextGC(StateType.Selected),
xpos + iconWidth + 2, typos, layout);
}
else
{
window.DrawRectangle(this.Style.BaseGC(StateType.Selected),
false, margin, ypos, lineWidth, he + padding);
window.DrawLayout(textGCNormal, xpos + iconWidth + 2, typos, layout);
}
}
else
{
window.DrawLayout(textGCNormal, xpos + iconWidth + 2, typos, layout);
}
if (icon != null)
{
window.DrawPixbuf(fgGCNormal, icon, 0, 0, xpos, iypos, iconWidth, iconHeight, Gdk.RgbDither.None, 0, 0);
}
ypos += rowHeight;
n++;
//reset the markup or it carries over to the next SetText
if (hasMarkup)
{
layout.SetMarkup(string.Empty);
}
}
}
//void SetAdjustments(Rectangle allocation)
//{
// hadj.SetBounds(0, allocation.Width, 0, 0, allocation.Width);
// var height = System.Math.Max(allocation.Height, rowHeight * this.win.DataProvider.Count);
// vadj.SetBounds(0, height, rowHeight, allocation.Height, allocation.Height);
//}
//FIXME: we could use the expose event's clipbox to make the drawing more efficient
protected override void OnDraw(Context cr, Rectangle dirtyRect)
{
var ypos = margin;
var lineWidth = Size.Width - margin * 2;
int xpos = margin + padding;
//avoid recreating the GC objects that we use multiple times
var textColor = Colors.Black;
int n = 0;
n = (int)(vadj.Value / rowHeight);
while (ypos < Size.Height - margin && n < win.DataProvider.Count)
{
bool hasMarkup = false;
IMarkupListDataProvider <T> markupListDataProvider = win.DataProvider as IMarkupListDataProvider <T>;
if (markupListDataProvider != null)
{
if (markupListDataProvider.HasMarkup(n))
{
layout.Markup = (markupListDataProvider.GetMarkup(n) ?? "<null>");
hasMarkup = true;
}
}
if (!hasMarkup)
{
layout.Text = (win.DataProvider.GetText(n) ?? "<null>");
}
var icon = win.DataProvider.GetIcon(n);
int iconHeight, iconWidth;
if (icon != null)
{
iconWidth = (int)icon.Width;
iconHeight = (int)icon.Height;
}
iconHeight = iconWidth = 24;
var s = layout.GetSize();
int typos, iypos;
int he = (int)s.Height;
typos = he < rowHeight ? ypos + (rowHeight - he) / 2 : ypos;
iypos = iconHeight < rowHeight ? ypos + (rowHeight - iconHeight) / 2 : ypos;
if (n == selection)
{
if (!disableSelection)
{
cr.Rectangle(margin, ypos, lineWidth, he + padding);
cr.SetColor(Colors.DarkOrange);
cr.Fill();
cr.SetColor(Colors.White);
cr.DrawTextLayout(layout, xpos + iconWidth + 2, typos);
}
else
{
cr.Rectangle(margin, ypos, lineWidth, he + padding);
cr.SetColor(Colors.OrangeRed);
cr.Stroke();
cr.SetColor(textColor);
cr.DrawTextLayout(layout, xpos + iconWidth + 2, typos);
}
}
else
{
cr.SetColor(textColor);
cr.DrawTextLayout(layout, xpos + iconWidth + 2, typos);
}
if (icon != null)
{
cr.DrawImage(icon, xpos, iypos);
}
ypos += rowHeight;
n++;
//reset the markup or it carries over to the next SetText
if (hasMarkup)
{
layout.Markup = string.Empty;
}
}
}
//FIXME: we could use the expose event's clipbox to make the drawing more efficient
void DrawList(Gdk.EventExpose args)
{
var window = args.Window;
int winWidth, winHeight;
window.GetSize(out winWidth, out winHeight);
int ypos = margin;
int lineWidth = winWidth - margin * 2;
int xpos = margin + padding;
using (var cr = this.CreateXwtContext()) {
//avoid recreating the GC objects that we use multiple times
var textColor = this.Style.Text(StateType.Normal).ToXwtColor();
int n = 0;
n = (int)(vadj.Value / rowHeight);
while (ypos < winHeight - margin && n < win.DataProvider.Count)
{
bool hasMarkup = false;
IMarkupListDataProvider <T> markupListDataProvider = win.DataProvider as IMarkupListDataProvider <T>;
if (markupListDataProvider != null)
{
if (markupListDataProvider.HasMarkup(n))
{
layout.Markup = (markupListDataProvider.GetMarkup(n) ?? "<null>");
hasMarkup = true;
}
}
if (!hasMarkup)
{
layout.Text = (win.DataProvider.GetText(n) ?? "<null>");
}
Xwt.Drawing.Image icon = win.DataProvider.GetIcon(n);
int iconHeight, iconWidth;
if (icon != null)
{
iconWidth = (int)icon.Width;
iconHeight = (int)icon.Height;
}
else if (!Gtk.Icon.SizeLookup(Gtk.IconSize.Menu, out iconWidth, out iconHeight))
{
iconHeight = iconWidth = 24;
}
var s = layout.GetSize();
int typos, iypos;
int he = (int)s.Height;
typos = he < rowHeight ? ypos + (rowHeight - he) / 2 : ypos;
iypos = iconHeight < rowHeight ? ypos + (rowHeight - iconHeight) / 2 : ypos;
if (n == selection)
{
if (!disableSelection)
{
cr.Rectangle(margin, ypos, lineWidth, he + padding);
cr.SetColor(this.Style.Base(StateType.Selected).ToXwtColor());
cr.Fill();
cr.SetColor(this.Style.Text(StateType.Selected).ToXwtColor());
cr.DrawTextLayout(layout, xpos + iconWidth + 2, typos);
}
else
{
cr.Rectangle(margin, ypos, lineWidth, he + padding);
cr.SetColor(this.Style.Base(StateType.Selected).ToXwtColor());
cr.Stroke();
cr.SetColor(textColor);
cr.DrawTextLayout(layout, xpos + iconWidth + 2, typos);
}
}
else
{
cr.SetColor(textColor);
cr.DrawTextLayout(layout, xpos + iconWidth + 2, typos);
}
if (icon != null)
{
cr.DrawImage(icon, xpos, iypos);
}
ypos += rowHeight;
n++;
//reset the markup or it carries over to the next SetText
if (hasMarkup)
{
layout.Markup = string.Empty;
}
}
}
}
