public static IWidget LayoutHover(string key, Color color, IWidget content)
{
var align = new AlignmentWidget(content)
{
VerticalAlignment = Alignment.Middle,
HorizontalAlignment = Alignment.Middle,
};
var style = new StyleWidget(align)
{
Style = new Style()
};
var hover = new HoverWidget(key + ".hover", style);
hover.Decoration = (h, w) =>
{
style.Style.Background = h ? Color.Blue : color;
return(w);
};
var box = new PaddingWidget(new Padding(1), hover);
return(box);
}
public override bool OnMouseMove(int x, int y)
{
int deltaX = x - MousePosition.X;
int deltaY = y - MousePosition.Y;
MousePosition = new Point(x, y);
MouseMoveEventArgs e = new MouseMoveEventArgs(x, y, deltaX, deltaY);
if (ActiveWidget != null)
{
//TODO, ensure object is still in the graphic tree
//send move evt even if mouse move outside bounds
ActiveWidget.onMouseMove(this, e);
if (!ActiveWidget.IsDragged) //if active is dragged, process mouse move as it was not visible.
{
return(true);
}
}
if (HoverWidget != null)
{
//check topmost graphicobject first
Widget tmp = HoverWidget;
Widget topc = null;
while (tmp is Widget)
{
topc = tmp;
tmp = tmp.LogicalParent as Widget;
}
int idxhw = GraphicTree.IndexOf(topc);
if (idxhw != 0)
{
int i = 0;
while (i < idxhw)
{
if (GraphicTree [i].localLogicalParentIsNull)
{
if (GraphicTree [i].MouseIsIn(e.Position))
{
while (HoverWidget != null)
{
HoverWidget.onMouseLeave(HoverWidget, e);
HoverWidget = HoverWidget.LogicalParent as Widget;
}
GraphicTree [i].checkHoverWidget(e);
return(true);
}
}
i++;
}
}
if (HoverWidget.MouseIsIn(e.Position))
{
if (!(HoverWidget is TemplatedControl))
{
HoverWidget.checkHoverWidget(e);
}
return(true);
}
else
{
HoverWidget.onMouseLeave(HoverWidget, e);
//seek upward from last focused graph obj's
while (HoverWidget.LogicalParent as Widget != null)
{
HoverWidget = HoverWidget.LogicalParent as Widget;
if (HoverWidget.MouseIsIn(e.Position))
{
HoverWidget.checkHoverWidget(e);
return(true);
}
else
{
HoverWidget.onMouseLeave(HoverWidget, e);
}
}
}
}
//top level graphic obj's parsing
lock (GraphicTree) {
for (int i = 0; i < GraphicTree.Count; i++)
{
Widget g = GraphicTree [i];
if (g.MouseIsIn(e.Position))
{
if (!(HoverWidget is TemplatedControl))
{
g.checkHoverWidget(e);
}
if (g is Window)
{
PutOnTop(g);
}
return(true);
}
}
}
HoverWidget = null;
return(false);
}
public void Update()
{
List <InputEventMouse> mouse_events = Library.Input.GetMouseEvents();
List <InputEventKeyboard> kb_events = Library.Input.GetKeyboardEvents();
#region Mouse Events
foreach (InputEventMouse e in mouse_events)
{
switch (e.EventType)
{
case MouseEvent.Move:
if (PressedWidget != null)
{
PressedWidget.MouseMove(e);
if (PressedWidget.BlocksInput)
{
continue;
}
}
if (HoverWidget != null)
{
HoverWidget.MouseMove(e);
}
HoverWidget = FindHover();
break;
case MouseEvent.Down:
if (HoverWidget != null)
{
PressedWidget = HoverWidget;
KeyboardFocusWidget = HoverWidget;
PressedWidget.MouseDown(e);
}
break;
case MouseEvent.Up:
if (PressedWidget != null)
{
PressedWidget.MouseUp(e);
PressedWidget = null;
}
break;
case MouseEvent.Click:
if (HoverWidget != null)
{
PressedWidget = HoverWidget;
PressedWidget.MouseClick(e);
}
break;
case MouseEvent.DoubleClick:
if (PressedWidget != null)
{
PressedWidget.MouseClick(e);
PressedWidget.MouseDoubleClick(e);
}
break;
case MouseEvent.WheelScroll:
if (PressedWidget != null)
{
PressedWidget.MouseWheel(e);
}
else if (HoverWidget != null)
{
HoverWidget.MouseWheel(e);
}
break;
}
}
#endregion
#region Keyboard Events
foreach (InputEventKeyboard e in kb_events)
{
switch (e.EventType)
{
case KeyboardEvent.Press:
if (m_KeyboardEvents != null)
{
m_KeyboardEvents(e);
}
if (KeyboardFocusWidget != null)
{
KeyboardFocusWidget.CharEntered(e);
}
break;
case KeyboardEvent.Down:
if (KeyboardFocusWidget != null)
{
KeyboardFocusWidget.KeyDown(e);
}
break;
case KeyboardEvent.Up:
if (KeyboardFocusWidget != null)
{
KeyboardFocusWidget.KeyUp(e);
}
break;
}
}
#endregion
}
protected override void onDraw(Cairo.Context gr)
{
base.onDraw(gr);
Rectangle cb = new Rectangle(0, 0, designWidth, designHeight);
gr.Save();
double z = zoom / 100.0;
gr.Scale(z, z);
if (drawGrid)
{
double gridLineWidth = 0.2 / z;
double glhw = gridLineWidth / 2.0;
int nbLines = cb.Width / gridSpacing;
double d = cb.Left + gridSpacing;
for (int i = 0; i < nbLines; i++)
{
gr.MoveTo(d - glhw, cb.Y);
gr.LineTo(d - glhw, cb.Bottom);
d += gridSpacing;
}
nbLines = cb.Height / gridSpacing;
d = cb.Top + gridSpacing;
for (int i = 0; i < nbLines; i++)
{
gr.MoveTo(cb.X, d - glhw);
gr.LineTo(cb.Right, d - glhw);
d += gridSpacing;
}
gr.LineWidth = gridLineWidth;
Foreground.SetAsSource(gr, cb);
gr.Stroke();
}
lock (imlVE.RenderMutex) {
gr.SetSourceSurface(imlVE.surf, cb.Left, cb.Top);
gr.Paint();
imlVE.IsDirty = false;
}
/*if (Error == null) {
* gr.SetSourceColor (Color.Black);
* gr.Rectangle (cb, 1.0 / z);
* } else {
* gr.SetSourceColor (Color.LavenderBlush);
* gr.Rectangle (cb, 2.0 / z);
* string[] lerrs = Error.ToString ().Split ('\n');
* Point p = cb.Center;
* p.Y -= lerrs.Length * 20;
* foreach (string le in lerrs) {
* drawCenteredTextLine(gr, p, le);
* p.Y += 20;
*
* }
* }
* gr.Stroke ();*/
Rectangle hr;
if (SelectedItem?.Parent != null)
{
gr.SelectFontFace(Font.Name, Font.Slant, Font.Wheight);
gr.SetFontSize(Font.Size);
gr.FontOptions = Interface.FontRenderingOptions;
gr.Antialias = Interface.Antialias;
Widget g = SelectedItem;
hr = g.ScreenCoordinates(g.getSlot());
// Rectangle rIcons = new Rectangle (iconSize);
// rIcons.Width *= 4;
// rIcons.Top = hr.Bottom;
// rIcons.Left = hr.Right - rIcons.Width + iconSize.Width;
Rectangle rIcoMove = new Rectangle(hr.BottomRight, iconSize);
// Rectangle rIcoStyle = rIcoMove;
// rIcoStyle.Left += iconSize.Width + 4;
using (Surface mask = new ImageSurface(Format.Argb32, cb.Width, cb.Height)) {
using (Context ctx = new Context(mask)) {
ctx.Save();
ctx.SetSourceRGBA(1.0, 1.0, 1.0, 0.4);
ctx.Paint();
ctx.Rectangle(hr);
ctx.Operator = Operator.Clear;
ctx.Fill();
}
gr.SetSourceSurface(mask, 0, 0);
gr.Paint();
using (Surface ol = new ImageSurface(Format.Argb32, cb.Width, cb.Height)) {
using (Context ctx = new Context(ol)) {
ctx.SetSourceColor(Colors.Black);
drawDesignOverlay(ctx, g, cb, hr, 0.4 / z, 6.5);
}
gr.SetSourceSurface(ol, 0, 0);
gr.Paint();
}
drawIcon(gr, icoMove, rIcoMove);
//drawIcon (gr, icoStyle, rIcoStyle);
}
}
if (HoverWidget != null)
{
hr = HoverWidget.ScreenCoordinates(HoverWidget.getSlot());
gr.SetSourceColor(Colors.SkyBlue);
//gr.SetDash (new double[]{ 5.0, 3.0 }, 0.0);
gr.Rectangle(hr, 0.4 / z);
}
gr.Restore();
}