protected override void InvalidateVirtualSize ()
{
double model_rows = Model == null ? 0 : Model.Count;
VirtualSize = new Size (
ChildSize.Width * Math.Max (Columns, 1),
ChildSize.Height * Math.Ceiling (model_rows / Math.Max (Columns, 1)));
}
public Rect (Point location, Size size) : this ()
{
X = location.X;
Y = location.Y;
Width = size.Width;
Height = size.Height;
}
public override Size Measure (Size available)
{
Size result = new Size (0, 0);
foreach (var child in Children) {
if (child.Visible) {
Size size = child.Measure (available);
result.Width = Math.Max (result.Width, size.Width);
result.Height = Math.Max (result.Height, size.Height);
}
}
if (!Double.IsNaN (Width)) {
result.Width = Width;
}
if (!Double.IsNaN (Height)) {
result.Height = Height;
}
if (!available.IsEmpty) {
result.Width = Math.Min (result.Width, available.Width);
result.Height = Math.Min (result.Height, available.Height);
}
return DesiredSize = result;
}
public override Size Measure (Size available)
{
if (!EnsureLayout ()) {
return new Size (0, 0);
}
available = base.Measure (available);
int text_w, text_h;
// Update layout
UpdateLayout (GetText (), available.Width - Margin.X, null, false);
layout.GetPixelSize (out text_w, out text_h);
double width = text_w;
if (!available.IsEmpty && available.Width > 0) {
width = available.Width;
}
//DesiredSize = new Size (width, text_h);
var size = DesiredSize = new Size (width, text_h);
// Hack, as this prevents the TextBlock from
// being flexible in a Vertical StackPanel
Height = size.Height;
if (ForceSize) {
Width = DesiredSize.Width;
}
return size;
}
public override Size Measure (Size available)
{
Size result = new Size (0, 0);
int visible_children = 0;
foreach (var child in Children) {
if (!child.Visible) {
continue;
}
Size size = child.Measure (available);
if (Orientation == Orientation.Vertical) {
result.Height += size.Height;
result.Width = Math.Max (result.Width, size.Width);
} else {
result.Width += size.Width;
result.Height = Math.Max (result.Height, size.Height);
}
visible_children++;
}
if (!Double.IsNaN (Width)) {
result.Width = Width;
}
if (!Double.IsNaN (Height)) {
result.Height = Height;
}
result.Width += Margin.X;
result.Height += Margin.Y;
if (!available.IsEmpty) {
result.Width = Math.Min (result.Width, available.Width);
result.Height = Math.Min (result.Height, available.Height);
}
if (Orientation == Orientation.Vertical) {
result.Height += Spacing * (visible_children - 1);
} else {
result.Width += Spacing * (visible_children - 1);
}
return DesiredSize = result;
}
public bool Equals (Size value)
{
return value.width == width && value.height == height;
}
public override Size Measure(Size available)
{
Width = Height = ImageSize;
return DesiredSize = new Size (Width + Margin.X, Height + Margin.Y);
}
public override Size Measure (Size available)
{
Height = BarSize;
return DesiredSize = new Size (base.Measure (available).Width,
Height + Margin.Top + Margin.Bottom);
}
public override Size Measure (Size available)
{
Width = Size + 2 * Xpad;
Height = Size + 2 * Ypad;
return DesiredSize = new Size (Width + Margin.X, Height + Margin.Y);
}
public override Size Measure (Size available)
{
var layout = ParentLayout as PhotoGridViewLayout;
caption_allocation.Height = layout.CaptionRender.MeasureHeight (ParentLayout.View);
double width = ThumbnailWidth + Padding.X;
double height = ThumbnailHeight + CaptionSpacing + caption_allocation.Height + Padding.Y;
return new Size (Math.Round (width), Math.Round (height));
}
public abstract Size Measure (Size available);
public override Size Measure (Size available)
{
Width = renderer.Width;
Height = renderer.Height;
return DesiredSize = new Size (Width + Margin.X, Height + Margin.Y);
}
public override Size Measure (Size available)
{
var widget = ParentLayout.View;
var fd = widget.PangoContext.FontDescription;
int normal_size = fd.Size;
fd.Size = (int)(fd.Size * Pango.Scale.Small);
first_line_allocation.Height = fd.MeasureTextHeight (widget.PangoContext);
fd.Weight = Pango.Weight.Normal;
fd.Size = (int)(fd.Size * Pango.Scale.Small);
second_line_allocation.Height = fd.MeasureTextHeight (widget.PangoContext);
fd.Size = normal_size;
double width, height;
double text_height = first_line_allocation.Height + second_line_allocation.Height;
if (IsGridLayout) {
width = ImageSize + Padding.X;
height = ImageSize + ImageSpacing + TextSpacing + text_height + Padding.Y;
} else {
double list_text_height = text_height + TextSpacing;
width = ImageSize + ImageSpacing + Padding.Y;
height = (list_text_height < ImageSize ? ImageSize : list_text_height) + Padding.X;
}
return new Size (Math.Round (width), Math.Round (height));
}
public override Size Measure(Size available)
{
if (!EnsureLayout ()) {
return new Size (0, 0);
}
available = base.Measure (available);
int text_w, text_h;
TextWrap wrap = TextWrap;
layout.Width = wrap == TextWrap.None ? -1 : (int)(Pango.Scale.PangoScale * available.Width);
layout.Wrap = GetPangoWrapMode (wrap);
layout.FontDescription.Weight = GetPangoFontWeight (FontWeight);
layout.SetText (Text);
layout.GetPixelSize (out text_w, out text_h);
double width = text_w;
if (!available.IsEmpty && available.Width > 0) {
width = available.Width;
}
DesiredSize = new Size (
width + Margin.Left + Margin.Right,
text_h + Margin.Top + Margin.Bottom);
// Hack, as this prevents the TextBlock from
// being flexible in a Vertical StackPanel
Height = DesiredSize.Height;
if (ForceSize) {
Width = DesiredSize.Width;
}
return DesiredSize;
}
public virtual Size Measure (Size available)
{
double m_x = Margin.X;
double m_y = Margin.Y;
double a_w = available.Width - m_x;
double a_h = available.Height - m_y;
return DesiredSize = new Size (
Math.Max (0, Math.Min (a_w, Double.IsNaN (Width) ? a_w : Width + m_x)),
Math.Max (0, Math.Min (a_h, Double.IsNaN (Height) ? a_h : Height + m_y))
);
}
