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-rw-r--r--src/GraphicObjects/Wrapper.cs251
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diff --git a/src/GraphicObjects/Wrapper.cs b/src/GraphicObjects/Wrapper.cs
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-//
-// Wrapper.cs
-//
-// Author:
-// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
-//
-// Copyright (c) 2013-2017 Jean-Philippe Bruyère
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-using System;
-
-namespace Crow
-{
- /// <summary>
- /// group control that arrange its children in a direction and jump to
- /// the next line or row when no room is left
- /// </summary>
- public class Wrapper : GenericStack
- {
- #region CTOR
- protected Wrapper() : base(){}
- public Wrapper (Interface iface) : base(iface){}
- #endregion
-
- #region Group Overrides
- public override void ChildrenLayoutingConstraints (ref LayoutingType layoutType)
- {
- layoutType &= (~LayoutingType.Positioning);
- }
- public override void ComputeChildrenPositions()
- {
- int dx = 0;
- int dy = 0;
-
- if (Orientation == Orientation.Vertical) {
- int tallestChild = 0;
- foreach (GraphicObject c in Children) {
- if (!c.Visible)
- continue;
- if (dx + c.Slot.Width > ClientRectangle.Width) {
- dx = 0;
- dy += tallestChild + Spacing;
- c.Slot.X = dx;
- c.Slot.Y = dy;
- tallestChild = c.Slot.Height;
- } else {
- if (tallestChild < c.Slot.Height)
- tallestChild = c.Slot.Height;
- c.Slot.X = dx;
- c.Slot.Y = dy;
- }
- dx += c.Slot.Width + Spacing;
- }
- } else {
- int largestChild = 0;
- foreach (GraphicObject c in Children) {
- if (!c.Visible)
- continue;
- if (dy + c.Slot.Height > ClientRectangle.Height) {
- dy = 0;
- dx += largestChild + Spacing;
- c.Slot.X = dx;
- c.Slot.Y = dy;
- largestChild = c.Slot.Width;
- } else {
- if (largestChild < c.Slot.Width)
- largestChild = c.Slot.Width;
- c.Slot.X = dx;
- c.Slot.Y = dy;
- }
- dy += c.Slot.Height + Spacing;
- }
- }
- IsDirty = true;
- }
- public override void OnChildLayoutChanges (object sender, LayoutingEventArgs arg)
- {
- //children can't stretch in a wrapper
- GraphicObject go = sender as GraphicObject;
- //System.Diagnostics.Debug.WriteLine ("wrapper child layout change: " + go.LastSlots.ToString() + " => " + go.Slot.ToString());
- switch (arg.LayoutType) {
- case LayoutingType.Width:
- if (Orientation == Orientation.Horizontal && go.Width.Units == Unit.Percent){
- go.Width = Measure.Fit;
- return;
- }
- this.RegisterForLayouting (LayoutingType.Width);
- break;
- case LayoutingType.Height:
- if (Orientation == Orientation.Vertical && go.Height.IsRelativeToParent) {
- go.Height = Measure.Fit;
- return;
- }
- this.RegisterForLayouting (LayoutingType.Height);
- break;
- default:
- return;
- }
- this.RegisterForLayouting (LayoutingType.ArrangeChildren);
- }
- #endregion
-
- #region GraphicObject Overrides
- protected override int measureRawSize (LayoutingType lt)
- {
- int tmp = 0;
- //Wrapper can't fit in the opposite direction of the wrapper, this func is called only if Fit
- if (lt == LayoutingType.Width) {
- if (Orientation == Orientation.Vertical) {
- Width = Measure.Stretched;
- return -1;
- } else if (RegisteredLayoutings.HasFlag (LayoutingType.Height))
- return -1;
- else {
- int dy = 0;
- int largestChild = 0;
-
- childrenRWLock.EnterReadLock();
-
- foreach (GraphicObject c in Children) {
- if (!c.Visible)
- continue;
- if (c.Height.IsRelativeToParent &&
- c.RegisteredLayoutings.HasFlag (LayoutingType.Height)) {
- childrenRWLock.ExitReadLock();
- return -1;
- }
- if (dy + c.Slot.Height > ClientRectangle.Height) {
- dy = 0;
- tmp += largestChild + Spacing;
- largestChild = c.Slot.Width;
- } else if (largestChild < c.Slot.Width)
- largestChild = c.Slot.Width;
-
- dy += c.Slot.Height + Spacing;
- }
-
- childrenRWLock.ExitReadLock ();
-
- if (dy == 0)
- tmp -= Spacing;
- return tmp + largestChild + 2 * Margin;
- }
- } else if (Orientation == Orientation.Horizontal) {
- Height = Measure.Stretched;
- return -1;
- } else if (RegisteredLayoutings.HasFlag (LayoutingType.Width))
- return -1;
- else {
- int dx = 0;
- int tallestChild = 0;
-
- childrenRWLock.EnterReadLock();
-
- foreach (GraphicObject c in Children) {
- if (!c.Visible)
- continue;
- if (c.Width.IsRelativeToParent &&
- c.RegisteredLayoutings.HasFlag (LayoutingType.Width)) {
- childrenRWLock.ExitReadLock();
- return -1;
- }
- if (dx + c.Slot.Width > ClientRectangle.Width) {
- dx = 0;
- tmp += tallestChild + Spacing;
- tallestChild = c.Slot.Height;
- } else if (tallestChild < c.Slot.Height)
- tallestChild = c.Slot.Height;
-
- dx += c.Slot.Width + Spacing;
- }
-
- childrenRWLock.ExitReadLock();
-
- if (dx == 0)
- tmp -= Spacing;
- return tmp + tallestChild + 2 * Margin;
- }
- }
-
- public override bool UpdateLayout (LayoutingType layoutType)
- {
- RegisteredLayoutings &= (~layoutType);
-
- if (layoutType == LayoutingType.ArrangeChildren) {
- if ((RegisteredLayoutings & LayoutingType.Sizing) != 0)
- return false;
-
- ComputeChildrenPositions ();
-
- //if no layouting remains in queue for item, registre for redraw
- if (RegisteredLayoutings == LayoutingType.None && IsDirty)
- IFace.EnqueueForRepaint (this);
-
- return true;
- }
-
- return base.UpdateLayout(layoutType);
- }
- public override void OnLayoutChanges (LayoutingType layoutType)
- {
- #if DEBUG_LAYOUTING
- IFace.currentLQI.Slot = LastSlots;
- IFace.currentLQI.Slot = Slot;
- #endif
- switch (layoutType) {
- case LayoutingType.Width:
- foreach (GraphicObject c in Children) {
- if (c.Width.IsRelativeToParent)
- c.RegisterForLayouting (LayoutingType.Width);
- }
- if (Height == Measure.Fit)
- RegisterForLayouting (LayoutingType.Height);
- RegisterForLayouting (LayoutingType.X);
- break;
- case LayoutingType.Height:
- foreach (GraphicObject c in Children) {
- if (c.Height.IsRelativeToParent)
- c.RegisterForLayouting (LayoutingType.Height);
- }
- if (Width == Measure.Fit)
- RegisterForLayouting (LayoutingType.Width);
- RegisterForLayouting (LayoutingType.Y);
- break;
- default:
- return;
- }
- RegisterForLayouting (LayoutingType.ArrangeChildren);
- raiseLayoutChanged (new LayoutingEventArgs (layoutType));
- }
- #endregion
- }
-}
-
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