protected override void OnDestroyed()
{
if (Child != null)
{
Child.Destroy();
}
if (vAdjustment != null)
{
vAdjustment.Changed -= HandleAdjustmentChanged;
vAdjustment.Destroy();
vAdjustment = null;
}
if (hAdjustment != null)
{
hAdjustment.Changed -= HandleAdjustmentChanged;
hAdjustment.Destroy();
hAdjustment = null;
}
if (vScrollBar != null)
{
vScrollBar.Destroy();
vScrollBar = null;
}
if (hScrollBar != null)
{
hScrollBar.Destroy();
hScrollBar = null;
}
foreach (var c in children)
{
c.Child.Destroy();
}
base.OnDestroyed();
}
protected override void SetScrollAdjustments(ScrollAdjustment horizontal, ScrollAdjustment vertical)
{
base.SetScrollAdjustments(horizontal, vertical);
hAdgustment = horizontal;
hAdgustment.ValueChanged += OnScroll;
vAdgustment = vertical;
vAdgustment.ValueChanged += OnScroll;
}
protected override void SetScrollAdjustments(ScrollAdjustment horizontal, ScrollAdjustment vertical)
{
this.hadj = horizontal;
this.vadj = vertical;
if (this.vadj != null)
{
this.vadj.ValueChanged += (sender, e) => QueueDraw();
}
base.SetScrollAdjustments(horizontal, vertical);
}
protected void DetachEvents()
{
if (vAdjustment == null)
{
return;
}
vAdjustment.ValueChanged -= HandleEditorVAdjustmentValueChanged;
hAdjustment.ValueChanged -= HandleEditorHAdjustmentValueChanged;
vAdjustment = null;
hAdjustment = null;
}
void UnregisterAdjustments()
{
if (vAdjustement != null)
{
vAdjustement.ValueChanged -= HandleAdjustmentValueChange;
}
if (hAdjustement != null)
{
hAdjustement.ValueChanged -= HandleAdjustmentValueChange;
}
vAdjustement = null;
hAdjustement = null;
}
protected void ListenToEvents()
{
if (vAdjustment == null)
{
vAdjustment = editor.VAdjustment;
hAdjustment = editor.HAdjustment;
vAdjustment.ValueChanged += HandleEditorVAdjustmentValueChanged;
hAdjustment.ValueChanged += HandleEditorHAdjustmentValueChanged;
}
vValue = vAdjustment.Value;
hValue = hAdjustment.Value;
}
public void SetScrollAdjustments(ScrollAdjustment horizontal, ScrollAdjustment vertical)
{
hscroll = horizontal;
vscroll = vertical;
OnBoundsChanged();
Action <object, EventArgs> changed = (s, e) => {
base.ClipOrigin = new Point(hscroll.Value, vscroll.Value);
Backend.QueueDraw();
};
hscroll.UpperValue = Math.Ceiling(DataSize.Width);
hscroll.ValueChanged += (s, e) => changed(s, e);
vscroll.UpperValue = Math.Ceiling(DataSize.Height);
vscroll.ValueChanged += (s, e) => changed(s, e);
}
public SmartScrolledWindow(Widget vScrollBar = null)
{
GtkWorkarounds.FixContainerLeak(this);
vAdjustment = new ScrollAdjustment();
vAdjustment.ValueChanged += HandleAdjustmentChanged;
this.vScrollBar = vScrollBar ?? new VScrollbar(vAdjustment);
this.vScrollBar.Parent = this;
this.vScrollBar.Show();
hAdjustment = new ScrollAdjustment();
hAdjustment.ValueChanged += HandleAdjustmentChanged;
hScrollBar = new HScrollbar(hAdjustment);
hScrollBar.Parent = this;
hScrollBar.Show();
}
protected override void SetScrollAdjustments(ScrollAdjustment hAdjustement, ScrollAdjustment vAdjustement)
{
UnregisterAdjustments();
this.vAdjustement = vAdjustement;
this.hAdjustement = hAdjustement;
base.SetScrollAdjustments(hAdjustement, vAdjustement);
textArea.SetScrollAdjustmentsInternal(hAdjustement, vAdjustement);
if (hAdjustement != null)
{
hAdjustement.ValueChanged += HandleAdjustmentValueChange;
}
if (vAdjustement != null)
{
vAdjustement.ValueChanged += HandleAdjustmentValueChange;
}
OnScrollAdjustmentsSet();
}
protected override void SetScrollAdjustments(ScrollAdjustment horizontal, ScrollAdjustment vertical)
{
hscroll = horizontal;
vscroll = vertical;
hscroll.UpperValue = imageSize;
hscroll.PageIncrement = Bounds.Width;
hscroll.PageSize = Bounds.Width;
hscroll.ValueChanged += delegate {
QueueDraw();
};
vscroll.UpperValue = imageSize;
vscroll.PageIncrement = Bounds.Height;
vscroll.PageSize = Bounds.Height;
vscroll.ValueChanged += delegate {
QueueDraw();
};
}
protected override void SetScrollAdjustments(ScrollAdjustment horizontal, ScrollAdjustment vertical)
{
hscroll = horizontal;
vscroll = vertical;
hscroll.UpperValue = ImageSize.Width;
hscroll.PageIncrement = Bounds.Width;
hscroll.PageSize = Bounds.Width;
hscroll.ValueChanged += delegate {
VisibleRect = new Rectangle(hscroll.Value, vscroll.Value, hscroll.PageSize, vscroll.PageSize);
Func <Rectangle> visrect2 = () => (Parent as ScrollView).VisibleRect;
QueueDraw();
};
vscroll.UpperValue = ImageSize.Height;
vscroll.PageIncrement = Bounds.Height;
vscroll.PageSize = Bounds.Height;
vscroll.ValueChanged += delegate {
VisibleRect = new Rectangle(hscroll.Value, vscroll.Value, hscroll.PageSize, vscroll.PageSize);
QueueDraw();
};
}
protected override void SetScrollAdjustments(ScrollAdjustment hAdjustement, ScrollAdjustment vAdjustement)
{
if (HexEditorData.HAdjustment != null)
{
HexEditorData.HAdjustment.ValueChanged -= HAdjustmentValueChanged;
}
if (HexEditorData.VAdjustment != null)
{
HexEditorData.VAdjustment.ValueChanged -= VAdjustmentValueChanged;
}
HexEditorData.HAdjustment = hAdjustement;
HexEditorData.VAdjustment = vAdjustement;
if (hAdjustement == null || vAdjustement == null)
{
return;
}
HexEditorData.HAdjustment.ValueChanged += HAdjustmentValueChanged;
HexEditorData.VAdjustment.ValueChanged += VAdjustmentValueChanged;
}
public HexEditorData()
{
Caret = new Caret(this);
VAdjustment = new ScrollAdjustment();
HAdjustment = new ScrollAdjustment();
}
public static void AddValueClamped(this ScrollAdjustment adj, double value)
{
adj.Value = Math.Max(adj.LowerValue, Math.Min(adj.Value + value, adj.UpperValue - adj.PageSize));
}
protected override void SetScrollAdjustments(ScrollAdjustment horizontal, ScrollAdjustment vertical)
{
//base.SetScrollAdjustments(horizontal, vertical);
ScrollHorizontal = horizontal;
ScrollVertical = vertical;
}
