private void UpdateAdjustments()
{
int layoutWidth, layoutHeight;
Layout.GetPixelSize(out layoutWidth, out layoutHeight);
if (hadjustment != null)
{
hadjustment.Upper = ContentArea.Width;
hadjustment.StepIncrement = 10.0;
if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper)
{
hadjustment.Value = hadjustment.Upper - hadjustment.PageSize;
}
if (hadjustment.Upper > 0 && hadjustment.Upper < hadjustment.PageSize)
{
hadjustment.Upper = hadjustment.PageSize;
}
hadjustment.Change();
}
if (vadjustment != null)
{
vadjustment.Upper = ContentArea.Height;
vadjustment.StepIncrement = layoutHeight;
if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper)
{
vadjustment.Value = vadjustment.Upper - vadjustment.PageSize;
}
if (vadjustment.Upper > 0 && vadjustment.Upper < vadjustment.PageSize)
{
vadjustment.Upper = vadjustment.PageSize;
}
vadjustment.Change();
}
}
private void UpdateAdjustments()
{
// FIXME: with ViewLayout, hadj and vadj should be unified
// since the layout will take the header into account...
if (hadjustment != null)
{
hadjustment.Upper = header_width;
hadjustment.StepIncrement = 10.0;
if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper)
{
hadjustment.Value = Math.Max(0, hadjustment.Upper - hadjustment.PageSize);
}
if (hadjustment.Upper > 0 && hadjustment.Upper < hadjustment.PageSize)
{
hadjustment.Upper = hadjustment.PageSize;
}
}
if (vadjustment != null)
{
if (model != null && model.Count > 0)
{
// FIXME: hard-coded grid logic
if (ViewLayout != null)
{
vadjustment.Upper = ViewLayout.VirtualSize.Height;
vadjustment.StepIncrement = ViewLayout.ChildSize.Height;
}
else
{
vadjustment.Upper = ChildSize.Height * model.Count;
vadjustment.StepIncrement = ChildSize.Height;
}
if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper)
{
vadjustment.Value = Math.Max(0, vadjustment.Upper - vadjustment.PageSize);
}
if (vadjustment.Upper > 0 && vadjustment.Upper < vadjustment.PageSize)
{
vadjustment.Upper = vadjustment.PageSize;
}
}
else
{
vadjustment.Upper = 0;
vadjustment.Lower = 0;
vadjustment.PageSize = 0;
vadjustment.PageIncrement = 0;
vadjustment.StepIncrement = 0;
vadjustment.Value = 0;
}
}
if (hadjustment != null)
{
hadjustment.Change();
}
if (vadjustment != null)
{
vadjustment.Change();
}
}
private void Redraw(Cairo.Context cr)
{
// Clear the background
cr.Rectangle(0, 0, Allocation.Width, Allocation.Height);
Gdk.CairoHelper.SetSourceColor(cr, Style.Base(State));
cr.Fill();
if (model == null)
{
if (hadj != null)
{
hadj.Upper = hadj.Lower = 0;
hadj.Change();
}
if (vadj != null)
{
vadj.Upper = 0;
vadj.Change();
}
return;
}
if (rows == 0 || cols == 0)
{
return;
}
Gdk.Rectangle background_area = cell_size;
background_area.Width += padding;
background_area.Height += padding;
TreeIter iter;
if (model.GetIterFirst(out iter))
{
do
{
TreePath path = model.GetPath(iter);
int x, y;
GetCellPosition(path.Indices[0], out x, out y);
if (hadj != null &&
(x + cell_size.Width < hadj.Value ||
x > hadj.Value + hadj.PageSize))
{
continue;
}
if (vadj != null &&
(y + cell_size.Height < vadj.Value ||
y > vadj.Value + vadj.PageSize))
{
continue;
}
if (data_func != null)
{
data_func(this, renderer, model, iter);
}
cell_size.X = x;
cell_size.Y = y;
if (hadj != null)
{
cell_size.X -= (int)hadj.Value;
}
if (vadj != null)
{
cell_size.Y -= (int)vadj.Value;
}
background_area.X = cell_size.X - (padding / 2);
background_area.Y = cell_size.Y - (padding / 2);
cr.Rectangle(background_area.X, background_area.Y,
background_area.Width, background_area.Height);
cr.Clip();
renderer.Render(cr, this, background_area,
cell_size, GetCellState(path));
cr.ResetClip();
} while (model.IterNext(ref iter));
}
if (have_rubberband_selection)
{
int hadj_val = (hadj != null) ? (int)hadj.Value : 0;
int vadj_val = (vadj != null) ? (int)vadj.Value : 0;
cr.Rectangle(sel_rect.X - hadj_val + 0.5f, sel_rect.Y - vadj_val + 0.5f,
sel_rect.Width, sel_rect.Height);
Cairo.Color sel_cairo_color = CairoHelper.GetCairoColor(Style.Background(StateType.Selected));
//cr.Color = sel_cairo_color;
cr.SetSourceRGBA(sel_cairo_color.R, sel_cairo_color.G, sel_cairo_color.B, sel_cairo_color.A);
cr.LineWidth = 1.0f;
cr.StrokePreserve();
sel_cairo_color.A = 0.3f;
//cr.Color = sel_cairo_color;
cr.SetSourceRGBA(sel_cairo_color.R, sel_cairo_color.G, sel_cairo_color.B, sel_cairo_color.A);
cr.Fill();
}
}
private void UpdateAdjustments(Adjustment hadj, Adjustment vadj)
{
bool vchange = false;
bool hchange = false;
if (hadj != null)
{
hadjustment = hadj;
}
if (vadj != null)
{
vadjustment = vadj;
}
if (hadjustment != null)
{
if (hadjustment.Upper != header_width)
{
hadjustment.Upper = header_width;
hchange = true;
}
if (hadjustment.StepIncrement != 10.0)
{
hadjustment.StepIncrement = 10.0;
hchange = true;
}
if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper)
{
hadjustment.Value = hadjustment.Upper - hadjustment.PageSize;
hchange = true;
}
}
if (vadjustment != null && model != null)
{
if (vadjustment.Upper != RowHeight * model.Count)
{
vadjustment.Upper = RowHeight * model.Count;
vchange = true;
}
if (vadjustment.StepIncrement != RowHeight)
{
vadjustment.StepIncrement = RowHeight;
vchange = true;
}
if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper)
{
vadjustment.Value = vadjustment.Upper - vadjustment.PageSize;
vchange = true;
}
}
if (hadjustment != null && hchange)
{
hadjustment.Change();
}
if (vadjustment != null && vchange)
{
vadjustment.Change();
}
}