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moved all sources to trunk directory
git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@693 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
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JKlingen
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255
Greenshot/Drawing/DrawableContainerList.cs
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255
Greenshot/Drawing/DrawableContainerList.cs
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/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2010 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Windows.Forms;
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using Greenshot.Drawing.Fields;
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using Greenshot.Plugin;
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using Greenshot.Plugin.Drawing;
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namespace Greenshot.Drawing {
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/// <summary>
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/// Dispatches most of a DrawableContainer's public properties and methods to a list of DrawableContainers.
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/// </summary>
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[Serializable()]
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public class DrawableContainerList : List<DrawableContainer> {
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public DrawableContainerList() {
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}
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public EditStatus Status {
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get {
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return this[Count-1].Status;
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}
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set {
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foreach(DrawableContainer dc in this) dc.Status = value;
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}
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}
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/// <summary>
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/// Gets or sets the selection status of the elements.
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/// If several elements are in the list, true is only returned when all elements are selected.
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/// </summary>
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public bool Selected {
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get {
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bool ret = true;
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foreach(DrawableContainer dc in this) ret &= dc.Selected;
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return ret;
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}
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set {
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foreach(DrawableContainer dc in this) dc.Selected = value;
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}
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}
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/// <summary>
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/// Gets or sets the parent control of the elements in the list.
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/// If there are several elements, the parent control of the last added is returned.
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/// </summary>
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public ISurface Parent {
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get {
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if(Count > 0) return this[Count-1].Parent;
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return null;
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}
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set {
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foreach(DrawableContainer dc in this) dc.Parent = value;
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}
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}
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/// <summary>
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/// Moves all elements in the list by the given amount of pixels.
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/// </summary>
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/// <param name="dx">pixels to move horizontally</param>
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/// <param name="dy">pixels to move vertically</param>
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public void MoveBy(int dx, int dy) {
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foreach(DrawableContainer dc in this) {
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dc.Left += dx;
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dc.Top += dy;
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}
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}
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/// <summary>
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/// Hides the grippers of all elements in the list.
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/// </summary>
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public void HideGrippers() {
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foreach(DrawableContainer dc in this) {
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dc.HideGrippers();
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}
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}
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/// <summary>
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/// Shows the grippers of all elements in the list.
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/// </summary>
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public void ShowGrippers() {
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foreach(DrawableContainer dc in this) {
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dc.ShowGrippers();
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}
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}
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/// <summary>
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/// Indicates whether on of the elements is clickable at the given location
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/// </summary>
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/// <param name="x">x coordinate to be checked</param>
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/// <param name="y">y coordinate to be checked</param>
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/// <returns>true if one of the elements in the list is clickable at the given location, false otherwise</returns>
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public bool ClickableAt(int x, int y) {
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bool ret = false;
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foreach(DrawableContainer dc in this) {
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ret |= dc.ClickableAt(x, y);
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}
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return ret;
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}
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/// <summary>
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/// retrieves the topmost element being clickable at the given location
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/// </summary>
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/// <param name="x">x coordinate to be checked</param>
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/// <param name="y">y coordinate to be checked</param>
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/// <returns>the topmost element from the list being clickable at the given location, null if there is no clickable element</returns>
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public DrawableContainer ClickableElementAt(int x, int y) {
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for(int i=Count-1; i>=0; i--) {
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if(this[i].ClickableAt(x,y)) return this[i];
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}
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return null;
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}
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/// <summary>
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/// Dispatches OnDoubleClick to all elements in the list.
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/// </summary>
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public void OnDoubleClick() {
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foreach(DrawableContainer dc in this) {
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dc.OnDoubleClick();
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}
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}
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/// <summary>
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/// Triggers all elements in the list ot be redrawn.
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/// </summary>
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/// <param name="g">the related Graphics object</param>
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/// <param name="rm">the rendermode in which the element is to be drawn</param>
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public void Draw(Graphics g, Bitmap bitmap, RenderMode rm) {
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foreach(DrawableContainer dc in this) {
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dc.DrawContent(g, bitmap, rm);
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}
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}
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/// <summary>
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/// Indicates whether the given list of elements can be pulled up,
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/// i.e. whether there is at least one unselected element higher in hierarchy
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/// </summary>
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/// <param name="elements">list of elements to pull up</param>
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/// <returns>true if the elements could be pulled up</returns>
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public bool CanPullUp(DrawableContainerList elements) {
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if(elements.Count == 0 || elements.Count == this.Count) return false;
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foreach(DrawableContainer element in elements) {
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if(this.IndexOf(element) < this.Count - elements.Count) return true;
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}
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return false;
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}
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/// <summary>
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/// Pulls one or several elements up one level in hierarchy (z-index).
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/// </summary>
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/// <param name="elements">list of elements to pull up</param>
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public void PullElementsUp(DrawableContainerList elements) {
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for(int i=this.Count-1; i>=0; i--) {
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DrawableContainer dc = this[i];
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if(elements.Contains(dc)) {
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if(Count > (i+1) && !elements.Contains(this[i+1])) SwapElements(i,i+1);
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}
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}
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}
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/// <summary>
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/// Pulls one or several elements up to the topmost level(s) in hierarchy (z-index).
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/// </summary>
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/// <param name="elements">of elements to pull to top</param>
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public void PullElementsToTop(DrawableContainerList elements) {
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DrawableContainer[] dcs = this.ToArray();
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for(int i=0; i<dcs.Length; i++) {
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DrawableContainer dc = dcs[i];
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if(elements.Contains(dc)) {
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this.Remove(dc);
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this.Add(dc);
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}
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}
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}
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/// <summary>
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/// Indicates whether the given list of elements can be pushed down,
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/// i.e. whether there is at least one unselected element lower in hierarchy
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/// </summary>
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/// <param name="elements">list of elements to push down</param>
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/// <returns>true if the elements could be pushed down</returns>
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public bool CanPushDown(DrawableContainerList elements) {
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if(elements.Count == 0 || elements.Count == this.Count) return false;
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foreach(DrawableContainer element in elements) {
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if(this.IndexOf(element) >= elements.Count) return true;
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}
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return false;
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}
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/// <summary>
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/// Pushes one or several elements down one level in hierarchy (z-index).
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/// </summary>
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/// <param name="elements">list of elements to push down</param>
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public void PushElementsDown(DrawableContainerList elements) {
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for(int i=0; i<Count; i++) {
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DrawableContainer dc = this[i];
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if(elements.Contains(dc)) {
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if((i>0) && !elements.Contains(this[i-1])) SwapElements(i,i-1);
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}
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}
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}
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/// <summary>
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/// Pushes one or several elements down to the bottommost level(s) in hierarchy (z-index).
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/// </summary>
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/// <param name="elements">of elements to push to bottom</param>
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public void PushElementsToBottom(DrawableContainerList elements) {
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DrawableContainer[] dcs = this.ToArray();
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for(int i=dcs.Length-1; i>=0; i--) {
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DrawableContainer dc = dcs[i];
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if(elements.Contains(dc)) {
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this.Remove(dc);
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this.Insert(0, dc);
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}
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}
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}
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/// <summary>
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/// swaps two elements in hierarchy (z-index),
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/// checks both indices to be in range
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/// </summary>
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/// <param name="index1">index of the 1st element</param>
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/// <param name="index2">index of the 2nd element</param>
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private void SwapElements(int index1, int index2) {
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if(index1 >= 0 && index1 < Count && index2 >= 0 && index2 < Count && index1 != index2) {
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DrawableContainer dc = this[index1];
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this[index1] = this[index2];
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this[index2] = dc;
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}
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}
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}
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}
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