greenshot/Greenshot/Drawing/DrawableContainerList.cs
2012-02-03 12:53:12 +00:00

492 lines
16 KiB
C#

/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2011 Thomas Braun, Jens Klingen, Robin Krom
*
* For more information see: http://getgreenshot.org/
* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.Drawing;
using Greenshot.Drawing.Fields;
using Greenshot.Memento;
using Greenshot.Plugin;
using Greenshot.Plugin.Drawing;
using System.Windows.Forms;
using GreenshotPlugin.Core;
using IniFile;
using Greenshot.Configuration;
using Greenshot.Helpers;
namespace Greenshot.Drawing {
/// <summary>
/// Dispatches most of a DrawableContainer's public properties and methods to a list of DrawableContainers.
/// </summary>
[Serializable()]
public class DrawableContainerList : List<DrawableContainer> {
private static CoreConfiguration conf = IniConfig.GetIniSection<CoreConfiguration>();
private static System.ComponentModel.ComponentResourceManager editorFormResources = new System.ComponentModel.ComponentResourceManager(typeof(ImageEditorForm));
public DrawableContainerList() {
}
public EditStatus Status {
get {
return this[Count-1].Status;
}
set {
foreach(DrawableContainer dc in this) dc.Status = value;
}
}
/// <summary>
/// Gets or sets the selection status of the elements.
/// If several elements are in the list, true is only returned when all elements are selected.
/// </summary>
public bool Selected {
get {
bool ret = true;
foreach(DrawableContainer dc in this) {
ret &= dc.Selected;
}
return ret;
}
set {
foreach(DrawableContainer dc in this) {
dc.Selected = value;
}
}
}
/// <summary>
/// Gets or sets the parent control of the elements in the list.
/// If there are several elements, the parent control of the last added is returned.
/// </summary>
public ISurface Parent {
get {
if(Count > 0) {
return this[Count-1].Parent;
}
return null;
}
set {
foreach(DrawableContainer dc in this) {
dc.Parent = value;
}
}
}
/// <summary>
/// Make a following bounds change on this containerlist undoable!
/// </summary>
/// <param name="allowMerge">true means allow the moves to be merged</param>
public void MakeBoundsChangeUndoable(bool allowMerge) {
List<IDrawableContainer> movingList = new List<IDrawableContainer>();
Surface surface = null;
foreach(DrawableContainer dc in this) {
movingList.Add(dc);
surface = dc.parent;
}
if (movingList.Count > 0 && surface != null) {
surface.MakeUndoable(new DrawableContainerBoundsChangeMemento(movingList), allowMerge);
}
}
/// <summary>
/// Moves all elements in the list by the given amount of pixels.
/// </summary>
/// <param name="dx">pixels to move horizontally</param>
/// <param name="dy">pixels to move vertically</param>
public void MoveBy(int dx, int dy) {
// Track modifications
bool modified = false;
// Invalidate before moving, otherwise the old locations aren't refreshed
this.Invalidate();
foreach(DrawableContainer dc in this) {
dc.Left += dx;
dc.Top += dy;
modified = true;
}
// Invalidate after
this.Invalidate();
// If we moved something, tell the surface it's modified!
if (modified) {
Parent.Modified = true;
}
}
/// <summary>
/// Hides the grippers of all elements in the list.
/// </summary>
public void HideGrippers() {
foreach(DrawableContainer dc in this) {
dc.HideGrippers();
dc.Invalidate();
}
}
/// <summary>
/// Shows the grippers of all elements in the list.
/// </summary>
public void ShowGrippers() {
foreach(DrawableContainer dc in this) {
dc.ShowGrippers();
dc.Invalidate();
}
}
/// <summary>
/// Indicates whether on of the elements is clickable at the given location
/// </summary>
/// <param name="x">x coordinate to be checked</param>
/// <param name="y">y coordinate to be checked</param>
/// <returns>true if one of the elements in the list is clickable at the given location, false otherwise</returns>
public bool ClickableAt(int x, int y) {
bool ret = false;
foreach(DrawableContainer dc in this) {
ret |= dc.ClickableAt(x, y);
}
return ret;
}
/// <summary>
/// retrieves the topmost element being clickable at the given location
/// </summary>
/// <param name="x">x coordinate to be checked</param>
/// <param name="y">y coordinate to be checked</param>
/// <returns>the topmost element from the list being clickable at the given location, null if there is no clickable element</returns>
public DrawableContainer ClickableElementAt(int x, int y) {
for(int i=Count-1; i>=0; i--) {
if(this[i].ClickableAt(x,y)) {
return this[i];
}
}
return null;
}
/// <summary>
/// Dispatches OnDoubleClick to all elements in the list.
/// </summary>
public void OnDoubleClick() {
foreach(DrawableContainer dc in this) {
dc.OnDoubleClick();
}
}
/// <summary>
/// Check if there are any intersecting filters, if so we need to redraw more
/// </summary>
/// <param name="clipRectangle"></param>
/// <returns>true if an filter intersects</returns>
public bool hasIntersectingFilters(Rectangle clipRectangle) {
foreach(DrawableContainer dc in this) {
if (dc.DrawingBounds.IntersectsWith(clipRectangle) && dc.hasFilters && dc.Status == EditStatus.IDLE) {
return true;
}
}
return false;
}
/// <summary>
/// Check if any of the drawableContainers are inside the rectangle
/// </summary>
/// <param name="clipRectangle"></param>
/// <returns></returns>
public bool IntersectsWith(Rectangle clipRectangle) {
foreach(DrawableContainer dc in this) {
if (dc.DrawingBounds.IntersectsWith(clipRectangle)) {
return true;
}
}
return false;
}
/// <summary>
/// Triggers all elements in the list ot be redrawn.
/// </summary>
/// <param name="g">the related Graphics object</param>
/// <param name="renderMode">the rendermode in which the element is to be drawn</param>
public void Draw(Graphics g, Bitmap bitmap, RenderMode renderMode, Rectangle clipRectangle) {
foreach(DrawableContainer dc in this) {
if (dc.DrawingBounds.IntersectsWith(clipRectangle)) {
dc.DrawContent(g, bitmap, renderMode, clipRectangle);
}
}
}
/// <summary>
/// Pass the field changed event to all elements in the list
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void HandleFieldChangedEvent(object sender, FieldChangedEventArgs e) {
foreach(DrawableContainer dc in this) {
dc.HandleFieldChanged(sender, e);
}
}
/// <summary>
/// Invalidate the bounds of all the DC's in this list
/// </summary>
public void Invalidate() {
foreach(DrawableContainer dc in this) {
dc.Invalidate();
}
}
/// <summary>
/// Indicates whether the given list of elements can be pulled up,
/// i.e. whether there is at least one unselected element higher in hierarchy
/// </summary>
/// <param name="elements">list of elements to pull up</param>
/// <returns>true if the elements could be pulled up</returns>
public bool CanPullUp(DrawableContainerList elements) {
if (elements.Count == 0 || elements.Count == this.Count) {
return false;
}
foreach(DrawableContainer element in elements) {
if (this.IndexOf(element) < this.Count - elements.Count) {
return true;
}
}
return false;
}
/// <summary>
/// Pulls one or several elements up one level in hierarchy (z-index).
/// </summary>
/// <param name="elements">list of elements to pull up</param>
public void PullElementsUp(DrawableContainerList elements) {
for(int i=this.Count-1; i>=0; i--) {
DrawableContainer dc = this[i];
if (elements.Contains(dc)) {
if (Count > (i+1) && !elements.Contains(this[i+1])) {
SwapElements(i,i+1);
}
}
}
}
/// <summary>
/// Pulls one or several elements up to the topmost level(s) in hierarchy (z-index).
/// </summary>
/// <param name="elements">of elements to pull to top</param>
public void PullElementsToTop(DrawableContainerList elements) {
DrawableContainer[] dcs = this.ToArray();
for(int i=0; i<dcs.Length; i++) {
DrawableContainer dc = dcs[i];
if (elements.Contains(dc)) {
this.Remove(dc);
this.Add(dc);
Parent.Modified = true;
}
}
}
/// <summary>
/// Indicates whether the given list of elements can be pushed down,
/// i.e. whether there is at least one unselected element lower in hierarchy
/// </summary>
/// <param name="elements">list of elements to push down</param>
/// <returns>true if the elements could be pushed down</returns>
public bool CanPushDown(DrawableContainerList elements) {
if (elements.Count == 0 || elements.Count == this.Count) {
return false;
}
foreach(DrawableContainer element in elements) {
if (this.IndexOf(element) >= elements.Count) {
return true;
}
}
return false;
}
/// <summary>
/// Pushes one or several elements down one level in hierarchy (z-index).
/// </summary>
/// <param name="elements">list of elements to push down</param>
public void PushElementsDown(DrawableContainerList elements) {
for(int i=0; i<Count; i++) {
DrawableContainer dc = this[i];
if(elements.Contains(dc)) {
if((i>0) && !elements.Contains(this[i-1])) {
SwapElements(i,i-1);
}
}
}
}
/// <summary>
/// Pushes one or several elements down to the bottommost level(s) in hierarchy (z-index).
/// </summary>
/// <param name="elements">of elements to push to bottom</param>
public void PushElementsToBottom(DrawableContainerList elements) {
DrawableContainer[] dcs = this.ToArray();
for(int i=dcs.Length-1; i>=0; i--) {
DrawableContainer dc = dcs[i];
if(elements.Contains(dc)) {
this.Remove(dc);
this.Insert(0, dc);
Parent.Modified = true;
}
}
}
/// <summary>
/// swaps two elements in hierarchy (z-index),
/// checks both indices to be in range
/// </summary>
/// <param name="index1">index of the 1st element</param>
/// <param name="index2">index of the 2nd element</param>
private void SwapElements(int index1, int index2) {
if(index1 >= 0 && index1 < Count && index2 >= 0 && index2 < Count && index1 != index2) {
DrawableContainer dc = this[index1];
this[index1] = this[index2];
this[index2] = dc;
Parent.Modified = true;
}
}
/// <summary>
/// Add items to a context menu for the selected item
/// </summary>
/// <param name="menu"></param>
public virtual void AddContextMenuItems(ContextMenuStrip menu, Surface surface) {
ILanguage lang = Language.GetInstance();
bool push = surface.Elements.CanPushDown(this);
bool pull = surface.Elements.CanPullUp(this);
ToolStripMenuItem item;
// Pull "up"
if (pull) {
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_uptotop));
item.Click += delegate {
surface.Elements.PullElementsToTop(this);
surface.Elements.Invalidate();
};
menu.Items.Add(item);
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_uponelevel));
item.Click += delegate {
surface.Elements.PullElementsUp(this);
surface.Elements.Invalidate();
};
menu.Items.Add(item);
}
// Push "down"
if (push) {
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_downtobottom));
item.Click += delegate {
surface.Elements.PushElementsToBottom(this);
surface.Elements.Invalidate();
};
menu.Items.Add(item);
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_downonelevel));
item.Click += delegate {
surface.Elements.PushElementsDown(this);
surface.Elements.Invalidate();
};
menu.Items.Add(item);
}
// Duplicate
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_duplicate));
item.Click += delegate {
DrawableContainerList dcs = this.Clone();
dcs.Parent = surface;
dcs.MoveBy(10, 10);
surface.AddElements(dcs);
surface.DeselectAllElements();
surface.SelectElements(dcs);
};
menu.Items.Add(item);
// Copy
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_copytoclipboard));
item.Image = ((System.Drawing.Image)(editorFormResources.GetObject("copyToolStripMenuItem.Image")));
item.Click += delegate {
ClipboardHelper.SetClipboardData(typeof(DrawableContainerList), this);
};
menu.Items.Add(item);
// Cut
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_cuttoclipboard));
item.Image = ((System.Drawing.Image)(editorFormResources.GetObject("btnCut.Image")));
item.Click += delegate {
ClipboardHelper.SetClipboardData(typeof(DrawableContainerList), this);
foreach (DrawableContainer container in this) {
surface.RemoveElement(container, true);
}
};
menu.Items.Add(item);
// Delete
item = new ToolStripMenuItem(lang.GetString(LangKey.editor_deleteelement));
item.Image = ((System.Drawing.Image)(editorFormResources.GetObject("removeObjectToolStripMenuItem.Image")));
item.Click += delegate {
foreach(DrawableContainer container in this) {
surface.RemoveElement(container, true);
}
};
menu.Items.Add(item);
// Reset
bool canReset = false;
foreach (DrawableContainer container in this) {
if (container.hasDefaultSize) {
canReset = true;
}
}
if (canReset) {
item = new ToolStripMenuItem("Reset size");
//item.Image = ((System.Drawing.Image)(editorFormResources.GetObject("removeObjectToolStripMenuItem.Image")));
item.Click += delegate {
foreach (DrawableContainer container in this) {
if (container.hasDefaultSize) {
Size defaultSize = container.DefaultSize;
container.Invalidate();
container.MakeBoundsChangeUndoable(false);
container.Width = defaultSize.Width;
container.Height = defaultSize.Height;
container.Invalidate();
}
}
};
menu.Items.Add(item);
}
}
public virtual void ShowContextMenu(MouseEventArgs e, Surface surface) {
if (conf.isExperimentalFeatureEnabled("Contextmenu")) {
bool hasMenu = false;
foreach (DrawableContainer container in this) {
if (container.hasContextMenu) {
hasMenu = true;
break;
}
}
if (hasMenu) {
ContextMenuStrip menu = new ContextMenuStrip();
AddContextMenuItems(menu, surface);
if (menu.Items.Count > 0) {
menu.Show(surface, e.Location);
}
}
}
}
}
}