public void FirstUpdate(string name, Size size, ref bool open, double backgroundAlpha,
WindowFlags flags,
long currentFrame, Window parentWindow)
{
//short names
var form = Form.current;
var g = form.uiContext;
var w = g.WindowManager;
this.Active = true;
this.BeginCount = 0;
this.LastActiveFrame = currentFrame;
// determine if window is collapsed
if (!flags.HaveFlag(WindowFlags.NoTitleBar) && !flags.HaveFlag(WindowFlags.NoCollapse))
{
// Collapse window by double-clicking on title bar
if (w.HoveredWindow == this && g.IsMouseHoveringRect(this.TitleBarRect) &&
Mouse.Instance.LeftButtonDoubleClicked)
{
this.Collapsed = !this.Collapsed;
w.FocusWindow(this);
open = !this.Collapsed; //overwrite the open state
}
}
this.Collapsed = !open;
//window container
using (var dc = WindowContainer.RenderOpen())
{
dc.DrawBoxModel(WindowContainer);
}
//update title bar
var windowRounding = (float)this.WindowContainer.RuleSet.Get <double>(StylePropertyName.WindowRounding);
if (!flags.HaveFlag(WindowFlags.NoTitleBar))
{
// background
using (var dc = this.titleBar.RenderOpen())
{
dc.DrawBoxModel(this.titleBar.RuleSet, this.titleBar.Rect);
}
//icon
using (var dc = titleIcon.RenderOpen())
{
dc.DrawImage(@"assets\images\logo.png", this.titleIcon.Rect);
}
//title
using (var dc = titleText.RenderOpen())
{
dc.DrawGlyphRun(titleText.RuleSet, this.Name, titleText.Rect.TopLeft);
}
}
this.ShowWindowClientArea(!this.Collapsed);
if (!this.Collapsed)
{
//show and update window client area
using (var dc = clientArea.RenderOpen())
{
dc.DrawBoxModel(clientArea);
}
if (!flags.HaveFlag(WindowFlags.NoResize))
{
if (this.ResizeGripNode == null)
{
var id = this.GetID("#RESIZE");
var node = new Node(id, "Window_ResizeGrip");
this.ResizeGripNode = node;
this.AbsoluteVisualList.Add(node);
}
//resize grip
this.ResizeGripNode.ActiveSelf = true;
var resizeGripColor = Color.Clear;
var br = this.Rect.BottomRight;
if (!flags.HaveFlag(WindowFlags.AlwaysAutoResize) && !flags.HaveFlag(WindowFlags.NoResize))
{
// Manual resize
var resizeRect = new Rect(
br - new Vector(this.WindowContainer.PaddingLeft + this.WindowContainer.BorderLeft,
this.WindowContainer.PaddingBottom + this.WindowContainer.BorderLeft),
br);
var resizeId = this.GetID("#RESIZE");
GUIBehavior.ButtonBehavior(resizeRect, resizeId, out var hovered, out var held,
ButtonFlags.FlattenChilds);
resizeGripColor =
held
? this.WindowContainer.RuleSet.Get <Color>(StylePropertyName.ResizeGripColor, GUIState.Active)
: hovered
? this.WindowContainer.RuleSet.Get <Color>(StylePropertyName.ResizeGripColor, GUIState.Hover)
: this.WindowContainer.RuleSet.Get <Color>(StylePropertyName.ResizeGripColor);
if (hovered || held)
{
Mouse.Instance.Cursor = (Cursor.NwseResize);
}
else
{
Mouse.Instance.Cursor = (Cursor.Default);
}
if (held)
{
// We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position
var t = Mouse.Instance.Position - g.ActiveIdClickOffset - this.Position;
var newSizeWidth = t.X + resizeRect.Width;
var newSizeHeight = t.Y + resizeRect.Height;
var resizeSize = new Size(newSizeWidth, newSizeHeight);
this.ApplySize(resizeSize);
}
}
// Render resize grip
// (after the input handling so we don't have a frame of latency)
var borderBottom = this.WindowContainer.RuleSet.BorderBottom;
var paddingBottom = this.WindowContainer.RuleSet.PaddingBottom;
var borderRight = this.WindowContainer.RuleSet.BorderRight;
var paddingRight = this.WindowContainer.RuleSet.PaddingRight;
using (var dc = this.ResizeGripNode.RenderOpen())
{
var path = new PathGeometry();
var figure = new PathFigure();
var A = br + new Vector(-10 - borderRight - paddingRight, 0);
var B = br + new Vector(0, -10 - borderBottom - paddingBottom);
figure.StartPoint = A;
figure.IsFilled = true;
figure.Segments.Add(new LineSegment(B, false));
figure.Segments.Add(new LineSegment(br, false));
figure.Segments.Add(new LineSegment(A, false));
path.Figures.Add(figure);
dc.DrawGeometry(new Brush(resizeGripColor), null, path);
}
}
this.ContentRect = Rect.Zero;
}
}