ZedGraph 柱状图、饼图、折线图演示源码
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//
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//This library is free software; you can redistribute it and/or
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//modify it under the terms of the GNU Lesser General Public
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//License as published by the Free Software Foundation; either
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//version 2.1 of the License, or (at your option) any later version.
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//
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//This library 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 GNU
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//Lesser General Public License for more details.
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//
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//You should have received a copy of the GNU Lesser General Public
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//License along with this library; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//=============================================================================
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Text;
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using System.Windows.Forms;
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using System.Threading;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Text;
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using System.Runtime.InteropServices;
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//using System.Diagnostics;
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namespace ZedGraph
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{
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partial class ZedGraphControl
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{
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#region ContextMenu
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// Revision: JCarpenter 10/06
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/// <summary>
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/// Public enumeration that specifies the type of
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/// object present at the Context Menu's mouse location
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/// </summary>
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public enum ContextMenuObjectState
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{
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/// <summary>
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/// The object is an Inactive Curve Item at the Context Menu's mouse position
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/// </summary>
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InactiveSelection,
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/// <summary>
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/// The object is an active Curve Item at the Context Menu's mouse position
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/// </summary>
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ActiveSelection,
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/// <summary>
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/// There is no selectable object present at the Context Menu's mouse position
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/// </summary>
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Background
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}
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//Revision: JCarpenter 10/06
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/// <summary>
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/// Find the object currently under the mouse cursor, and return its state.
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/// </summary>
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private ContextMenuObjectState GetObjectState()
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{
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ContextMenuObjectState objState = ContextMenuObjectState.Background;
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// Determine object state
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Point mousePt = this.PointToClient( Control.MousePosition );
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int iPt;
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GraphPane pane;
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object nearestObj;
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using ( Graphics g = this.CreateGraphics() )
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{
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if ( this.MasterPane.FindNearestPaneObject( mousePt, g, out pane,
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out nearestObj, out iPt ) )
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{
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CurveItem item = nearestObj as CurveItem;
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if ( item != null && iPt >= 0 )
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{
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if ( item.IsSelected )
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objState = ContextMenuObjectState.ActiveSelection;
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else
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objState = ContextMenuObjectState.InactiveSelection;
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}
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}
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}
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return objState;
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}
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/// <summary>
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/// protected method to handle the popup context menu in the <see cref="ZedGraphControl"/>.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void contextMenuStrip1_Opening( object sender, CancelEventArgs e )
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{
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// disable context menu by default
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e.Cancel = true;
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ContextMenuStrip menuStrip = sender as ContextMenuStrip;
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//Revision: JCarpenter 10/06
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ContextMenuObjectState objState = GetObjectState();
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if ( _masterPane != null && menuStrip != null )
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{
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menuStrip.Items.Clear();
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_isZooming = false;
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_isPanning = false;
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Cursor.Current = Cursors.Default;
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_menuClickPt = this.PointToClient( Control.MousePosition );
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GraphPane pane = _masterPane.FindPane( _menuClickPt );
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if ( _isShowContextMenu )
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{
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string menuStr = string.Empty;
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ToolStripMenuItem item = new ToolStripMenuItem();
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item.Name = "copy";
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item.Tag = "copy";
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item.Text = _resourceManager.GetString( "copy" );
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item.Click += new System.EventHandler( this.MenuClick_Copy );
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "save_as";
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item.Tag = "save_as";
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item.Text = _resourceManager.GetString( "save_as" );
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item.Click += new System.EventHandler( this.MenuClick_SaveAs );
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "page_setup";
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item.Tag = "page_setup";
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item.Text = _resourceManager.GetString( "page_setup" );
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item.Click += new System.EventHandler( this.MenuClick_PageSetup );
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "print";
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item.Tag = "print";
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item.Text = _resourceManager.GetString( "print" );
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item.Click += new System.EventHandler( this.MenuClick_Print );
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "show_val";
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item.Tag = "show_val";
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item.Text = _resourceManager.GetString( "show_val" );
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item.Click += new System.EventHandler( this.MenuClick_ShowValues );
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item.Checked = this.IsShowPointValues;
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "unzoom";
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item.Tag = "unzoom";
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if ( pane == null || pane.ZoomStack.IsEmpty )
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menuStr = _resourceManager.GetString( "unzoom" );
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else
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{
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switch ( pane.ZoomStack.Top.Type )
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{
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case ZoomState.StateType.Zoom:
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case ZoomState.StateType.WheelZoom:
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menuStr = _resourceManager.GetString( "unzoom" );
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break;
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case ZoomState.StateType.Pan:
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menuStr = _resourceManager.GetString( "unpan" );
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break;
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case ZoomState.StateType.Scroll:
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menuStr = _resourceManager.GetString( "unscroll" );
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break;
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}
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}
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//menuItem.Text = "Un-" + ( ( pane == null || pane.zoomStack.IsEmpty ) ?
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// "Zoom" : pane.zoomStack.Top.TypeString );
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item.Text = menuStr;
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item.Click += new EventHandler( this.MenuClick_ZoomOut );
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if ( pane == null || pane.ZoomStack.IsEmpty )
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item.Enabled = false;
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "undo_all";
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item.Tag = "undo_all";
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menuStr = _resourceManager.GetString( "undo_all" );
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item.Text = menuStr;
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item.Click += new EventHandler( this.MenuClick_ZoomOutAll );
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if ( pane == null || pane.ZoomStack.IsEmpty )
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item.Enabled = false;
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menuStrip.Items.Add( item );
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item = new ToolStripMenuItem();
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item.Name = "set_default";
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item.Tag = "set_default";
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menuStr = _resourceManager.GetString( "set_default" );
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item.Text = menuStr;
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item.Click += new EventHandler( this.MenuClick_RestoreScale );
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if ( pane == null )
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item.Enabled = false;
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menuStrip.Items.Add( item );
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// if e.Cancel is set to false, the context menu does not display
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// it is initially set to false because the context menu has no items
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e.Cancel = false;
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// Provide Callback for User to edit the context menu
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//Revision: JCarpenter 10/06 - add ContextMenuObjectState objState
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if ( this.ContextMenuBuilder != null )
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this.ContextMenuBuilder( this, menuStrip, _menuClickPt, objState );
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}
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}
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}
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/// <summary>
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/// Handler for the "Copy" context menu item. Copies the current image to a bitmap on the
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/// clipboard.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void MenuClick_Copy( System.Object sender, System.EventArgs e )
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{
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Copy( _isShowCopyMessage );
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}
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/// <summary>
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/// Handler for the "Copy" context menu item. Copies the current image to a bitmap on the
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/// clipboard.
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/// </summary>
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/// <param name="isShowMessage">boolean value that determines whether or not a prompt will be
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/// displayed. true to show a message of "Image Copied to ClipBoard".</param>
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public void Copy( bool isShowMessage )
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{
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if ( _masterPane != null )
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{
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//Clipboard.SetDataObject( _masterPane.GetImage(), true );
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// Threaded copy mode to avoid crash with MTA
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// Contributed by Dave Moor
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Thread ct = new Thread( new ThreadStart( this.ClipboardCopyThread ) );
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//ct.ApartmentState = ApartmentState.STA;
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ct.SetApartmentState( ApartmentState.STA );
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ct.Start();
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ct.Join();
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if ( isShowMessage )
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{
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string str = _resourceManager.GetString( "copied_to_clip" );
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//MessageBox.Show( "Image Copied to ClipBoard" );
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MessageBox.Show( str );
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}
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}
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}
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/// <summary>
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/// A threaded version of the copy method to avoid crash with MTA
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/// </summary>
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private void ClipboardCopyThread()
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{
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Clipboard.SetDataObject( ImageRender(), true );
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}
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//
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/// <summary>
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/// Setup for creation of a new image, applying appropriate anti-alias properties and
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/// returning the resultant image file
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/// </summary>
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/// <returns></returns>
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private Image ImageRender()
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{
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return _masterPane.GetImage( _masterPane.IsAntiAlias );
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}
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/// <summary>
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/// Special handler that copies the current image to an Emf file on the clipboard.
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/// </summary>
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/// <remarks>This version is similar to the regular <see cref="Copy" /> method, except that
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/// it will place an Emf image (vector) on the ClipBoard instead of the regular bitmap.</remarks>
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/// <param name="isShowMessage">boolean value that determines whether or not a prompt will be
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/// displayed. true to show a message of "Image Copied to ClipBoard".</param>
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public void CopyEmf(bool isShowMessage)
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{
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if (_masterPane != null)
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{
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// Threaded copy mode to avoid crash with MTA
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// Contributed by Dave Moor
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Thread ct = new Thread(new ThreadStart(this.ClipboardCopyThreadEmf));
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//ct.ApartmentState = ApartmentState.STA;
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ct.SetApartmentState(ApartmentState.STA);
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ct.Start();
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ct.Join();
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if (isShowMessage)
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{
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string str = _resourceManager.GetString("copied_to_clip");
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MessageBox.Show(str);
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}
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}
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}
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/// <summary>
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/// A threaded version of the copy method to avoid crash with MTA
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/// </summary>
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private void ClipboardCopyThreadEmf()
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{
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using (Graphics g = this.CreateGraphics())
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{
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IntPtr hdc = g.GetHdc();
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Metafile metaFile = new Metafile(hdc, EmfType.EmfPlusOnly);
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g.ReleaseHdc(hdc);
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using (Graphics gMeta = Graphics.FromImage(metaFile))
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{
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this._masterPane.Draw( gMeta );
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}
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//IntPtr hMeta = metaFile.GetHenhmetafile();
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ClipboardMetafileHelper.PutEnhMetafileOnClipboard( this.Handle, metaFile );
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//System.Windows.Forms.Clipboard.SetDataObject(hMeta, true);
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//g.Dispose();
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}
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}
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/// <summary>
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/// Handler for the "Save Image As" context menu item. Copies the current image to the selected
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/// file.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void MenuClick_SaveAs( System.Object sender, System.EventArgs e )
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{
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SaveAs();
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}
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/// <summary>
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/// Handler for the "Save Image As" context menu item. Copies the current image to the selected
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/// file in either the Emf (vector), or a variety of Bitmap formats.
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/// </summary>
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/// <remarks>
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/// Note that <see cref="SaveAsBitmap" /> and <see cref="SaveAsEmf" /> methods are provided
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/// which allow for Bitmap-only or Emf-only handling of the "Save As" context menu item.
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/// </remarks>
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public void SaveAs()
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{
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SaveAs( null );
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}
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/// <summary>
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/// Copies the current image to the selected file in
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/// Emf (vector), or a variety of Bitmap formats.
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/// </summary>
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/// <param name="DefaultFileName">
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/// Accepts a default file name for the file dialog (if "" or null, default is not used)
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/// </param>
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/// <returns>
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/// The file name saved, or "" if cancelled.
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/// </returns>
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/// <remarks>
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/// Note that <see cref="SaveAsBitmap" /> and <see cref="SaveAsEmf" /> methods are provided
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/// which allow for Bitmap-only or Emf-only handling of the "Save As" context menu item.
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/// </remarks>
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public String SaveAs( String DefaultFileName )
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{
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if ( _masterPane != null )
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{
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_saveFileDialog.Filter =
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"Emf Format (*.emf)|*.emf|" +
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"PNG Format (*.png)|*.png|" +
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"Gif Format (*.gif)|*.gif|" +
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"Jpeg Format (*.jpg)|*.jpg|" +
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"Tiff Format (*.tif)|*.tif|" +
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"Bmp Format (*.bmp)|*.bmp";
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if ( DefaultFileName != null && DefaultFileName.Length > 0 )
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{
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String ext = System.IO.Path.GetExtension( DefaultFileName ).ToLower();
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switch (ext)
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{
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case ".emf": _saveFileDialog.FilterIndex = 1; break;
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case ".png": _saveFileDialog.FilterIndex = 2; break;
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case ".gif": _saveFileDialog.FilterIndex = 3; break;
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case ".jpeg":
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case ".jpg": _saveFileDialog.FilterIndex = 4; break;
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case ".tiff":
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case ".tif": _saveFileDialog.FilterIndex = 5; break;
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case ".bmp": _saveFileDialog.FilterIndex = 6; break;
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}
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//If we were passed a file name, not just an extension, use it
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if ( DefaultFileName.Length > ext.Length )
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{
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_saveFileDialog.FileName = DefaultFileName;
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}
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}
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if ( _saveFileDialog.ShowDialog() == DialogResult.OK )
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{
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Stream myStream = _saveFileDialog.OpenFile();
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if ( myStream != null )
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{
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if ( _saveFileDialog.FilterIndex == 1 )
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{
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myStream.Close();
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SaveEmfFile( _saveFileDialog.FileName );
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}
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else
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{
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ImageFormat format = ImageFormat.Png;
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switch (_saveFileDialog.FilterIndex)
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{
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case 2: format = ImageFormat.Png; break;
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case 3: format = ImageFormat.Gif; break;
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case 4: format = ImageFormat.Jpeg; break;
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case 5: format = ImageFormat.Tiff; break;
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case 6: format = ImageFormat.Bmp; break;
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}
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ImageRender().Save( myStream, format );
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//_masterPane.GetImage().Save( myStream, format );
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myStream.Close();
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}
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return _saveFileDialog.FileName;
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}
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}
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}
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return "";
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}
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/// <summary>
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/// Handler for the "Save Image As" context menu item. Copies the current image to the selected
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/// Bitmap file.
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/// </summary>
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/// <remarks>
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/// Note that this handler saves as a bitmap only. The default handler is
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/// <see cref="SaveAs()" />, which allows for Bitmap or EMF formats
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/// </remarks>
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public void SaveAsBitmap()
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{
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if ( _masterPane != null )
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{
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_saveFileDialog.Filter =
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"PNG Format (*.png)|*.png|" +
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"Gif Format (*.gif)|*.gif|" +
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"Jpeg Format (*.jpg)|*.jpg|" +
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"Tiff Format (*.tif)|*.tif|" +
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"Bmp Format (*.bmp)|*.bmp";
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if ( _saveFileDialog.ShowDialog() == DialogResult.OK )
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{
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ImageFormat format = ImageFormat.Png;
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if ( _saveFileDialog.FilterIndex == 2 )
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format = ImageFormat.Gif;
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else if ( _saveFileDialog.FilterIndex == 3 )
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format = ImageFormat.Jpeg;
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else if ( _saveFileDialog.FilterIndex == 4 )
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format = ImageFormat.Tiff;
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else if ( _saveFileDialog.FilterIndex == 5 )
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format = ImageFormat.Bmp;
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Stream myStream = _saveFileDialog.OpenFile();
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if ( myStream != null )
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{
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//_masterPane.GetImage().Save( myStream, format );
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ImageRender().Save( myStream, format );
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myStream.Close();
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}
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}
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}
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}
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/// <summary>
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/// Handler for the "Save Image As" context menu item. Copies the current image to the selected
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/// Emf format file.
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/// </summary>
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/// <remarks>
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/// Note that this handler saves as an Emf format only. The default handler is
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/// <see cref="SaveAs()" />, which allows for Bitmap or EMF formats.
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/// </remarks>
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public void SaveAsEmf()
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{
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if ( _masterPane != null )
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{
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_saveFileDialog.Filter = "Emf Format (*.emf)|*.emf";
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if ( _saveFileDialog.ShowDialog() == DialogResult.OK )
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{
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Stream myStream = _saveFileDialog.OpenFile();
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if ( myStream != null )
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{
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myStream.Close();
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//_masterPane.GetMetafile().Save( _saveFileDialog.FileName );
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SaveEmfFile(_saveFileDialog.FileName);
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}
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}
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}
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}
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/// <summary>
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/// Save the current Graph to the specified filename in EMF (vector) format.
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/// See <see cref="SaveAsEmf()" /> for public access.
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/// </summary>
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/// <remarks>
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/// Note that this handler saves as an Emf format only. The default handler is
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/// <see cref="SaveAs()" />, which allows for Bitmap or EMF formats.
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/// </remarks>
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internal void SaveEmfFile( string fileName )
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{
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using (Graphics g = this.CreateGraphics())
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{
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IntPtr hdc = g.GetHdc();
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Metafile metaFile = new Metafile(hdc, EmfType.EmfPlusOnly);
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using (Graphics gMeta = Graphics.FromImage(metaFile))
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{
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//PaneBase.SetAntiAliasMode( gMeta, IsAntiAlias );
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//gMeta.CompositingMode = CompositingMode.SourceCopy;
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//gMeta.CompositingQuality = CompositingQuality.HighQuality;
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//gMeta.InterpolationMode = InterpolationMode.HighQualityBicubic;
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//gMeta.SmoothingMode = SmoothingMode.AntiAlias;
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//gMeta.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
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this._masterPane.Draw(gMeta);
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//gMeta.Dispose();
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}
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ClipboardMetafileHelper.SaveEnhMetafileToFile(metaFile, fileName );
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g.ReleaseHdc(hdc);
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//g.Dispose();
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}
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}
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internal class ClipboardMetafileHelper
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{
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[DllImport("user32.dll")]
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static extern bool OpenClipboard(IntPtr hWndNewOwner);
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[DllImport("user32.dll")]
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static extern bool EmptyClipboard();
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[DllImport("user32.dll")]
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static extern IntPtr SetClipboardData(uint uFormat, IntPtr hMem);
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[DllImport("user32.dll")]
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static extern bool CloseClipboard();
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[DllImport("gdi32.dll")]
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static extern IntPtr CopyEnhMetaFile(IntPtr hemfSrc, System.Text.StringBuilder hNULL);
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[DllImport("gdi32.dll")]
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static extern bool DeleteEnhMetaFile(IntPtr hemf);
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static internal bool SaveEnhMetafileToFile( Metafile mf, string fileName )
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{
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bool bResult = false;
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IntPtr hEMF;
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hEMF = mf.GetHenhmetafile(); // invalidates mf
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if (!hEMF.Equals(new IntPtr(0)))
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{
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StringBuilder tempName = new StringBuilder(fileName);
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CopyEnhMetaFile(hEMF, tempName);
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DeleteEnhMetaFile(hEMF);
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}
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return bResult;
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}
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static internal bool SaveEnhMetafileToFile(Metafile mf)
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{
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bool bResult = false;
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IntPtr hEMF;
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hEMF = mf.GetHenhmetafile(); // invalidates mf
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if (!hEMF.Equals(new IntPtr(0)))
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{
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SaveFileDialog sfd = new SaveFileDialog();
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sfd.Filter = "Extended Metafile (*.emf)|*.emf";
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sfd.DefaultExt = ".emf";
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if (sfd.ShowDialog() == DialogResult.OK)
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{
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StringBuilder temp = new StringBuilder(sfd.FileName);
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CopyEnhMetaFile(hEMF, temp);
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}
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DeleteEnhMetaFile(hEMF);
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}
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return bResult;
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}
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// Metafile mf is set to a state that is not valid inside this function.
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static internal bool PutEnhMetafileOnClipboard(IntPtr hWnd, Metafile mf)
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{
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bool bResult = false;
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IntPtr hEMF, hEMF2;
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hEMF = mf.GetHenhmetafile(); // invalidates mf
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if (!hEMF.Equals(new IntPtr(0)))
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{
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hEMF2 = CopyEnhMetaFile(hEMF, null);
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if (!hEMF2.Equals(new IntPtr(0)))
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{
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if (OpenClipboard(hWnd))
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{
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if (EmptyClipboard())
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{
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IntPtr hRes = SetClipboardData(14 /*CF_ENHMETAFILE*/, hEMF2);
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bResult = hRes.Equals(hEMF2);
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CloseClipboard();
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}
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}
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}
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DeleteEnhMetaFile(hEMF);
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}
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return bResult;
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}
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}
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/// <summary>
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/// Handler for the "Show Values" context menu item. Toggles the <see cref="IsShowPointValues"/>
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/// property, which activates the point value tooltips.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void MenuClick_ShowValues( object sender, System.EventArgs e )
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{
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ToolStripMenuItem item = sender as ToolStripMenuItem;
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if ( item != null )
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this.IsShowPointValues = !item.Checked;
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}
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/// <summary>
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/// Handler for the "Set Scale to Default" context menu item. Sets the scale ranging to
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/// full auto mode for all axes.
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/// </summary>
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/// <remarks>
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/// This method differs from the <see cref="ZoomOutAll" /> method in that it sets the scales
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/// to full auto mode. The <see cref="ZoomOutAll" /> method sets the scales to their initial
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/// setting prior to any user actions (which may or may not be full auto mode).
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/// </remarks>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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protected void MenuClick_RestoreScale( object sender, EventArgs e )
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{
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if ( _masterPane != null )
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{
-
GraphPane pane = _masterPane.FindPane( _menuClickPt );
-
RestoreScale( pane );
-
}
-
}
-
-
/// <summary>
-
/// Handler for the "Set Scale to Default" context menu item. Sets the scale ranging to
-
/// full auto mode for all axes.
-
/// </summary>
-
/// <remarks>
-
/// This method differs from the <see cref="ZoomOutAll" /> method in that it sets the scales
-
/// to full auto mode. The <see cref="ZoomOutAll" /> method sets the scales to their initial
-
/// setting prior to any user actions (which may or may not be full auto mode).
-
/// </remarks>
-
/// <param name="primaryPane">The <see cref="GraphPane" /> object which is to have the
-
/// scale restored</param>
-
public void RestoreScale( GraphPane primaryPane )
-
{
-
if ( primaryPane != null )
-
{
-
//Go ahead and save the old zoomstates, which provides an "undo"-like capability
-
//ZoomState oldState = primaryPane.ZoomStack.Push( primaryPane, ZoomState.StateType.Zoom );
-
ZoomState oldState = new ZoomState( primaryPane, ZoomState.StateType.Zoom );
-
-
using ( Graphics g = this.CreateGraphics() )
-
{
-
if ( _isSynchronizeXAxes || _isSynchronizeYAxes )
-
{
-
foreach ( GraphPane pane in _masterPane._paneList )
-
{
-
pane.ZoomStack.Push( pane, ZoomState.StateType.Zoom );
-
ResetAutoScale( pane, g );
-
}
-
}
-
else
-
{
-
primaryPane.ZoomStack.Push( primaryPane, ZoomState.StateType.Zoom );
-
ResetAutoScale( primaryPane, g );
-
}
-
-
// Provide Callback to notify the user of zoom events
-
if ( this.ZoomEvent != null )
-
this.ZoomEvent( this, oldState, new ZoomState( primaryPane, ZoomState.StateType.Zoom ) );
-
-
//g.Dispose();
-
}
-
Refresh();
-
}
-
}
-
-
private void ResetAutoScale( GraphPane pane, Graphics g )
-
{
-
pane.XAxis.ResetAutoScale( pane, g );
-
pane.X2Axis.ResetAutoScale( pane, g );
-
foreach ( YAxis axis in pane.YAxisList )
-
axis.ResetAutoScale( pane, g );
-
foreach ( Y2Axis axis in pane.Y2AxisList )
-
axis.ResetAutoScale( pane, g );
-
}
-
-
/*
-
public void RestoreScale( GraphPane primaryPane )
-
{
-
if ( primaryPane != null )
-
{
-
Graphics g = this.CreateGraphics();
-
ZoomState oldState = new ZoomState( primaryPane, ZoomState.StateType.Zoom );
-
//ZoomState newState = null;
-
-
if ( _isSynchronizeXAxes || _isSynchronizeYAxes )
-
{
-
foreach ( GraphPane pane in _masterPane._paneList )
-
{
-
if ( pane == primaryPane )
-
{
-
pane.XAxis.ResetAutoScale( pane, g );
-
foreach ( YAxis axis in pane.YAxisList )
-
axis.ResetAutoScale( pane, g );
-
foreach ( Y2Axis axis in pane.Y2AxisList )
-
axis.ResetAutoScale( pane, g );
-
}
-
}
-
}
-
else
-
{
-
primaryPane.XAxis.ResetAutoScale( primaryPane, g );
-
foreach ( YAxis axis in primaryPane.YAxisList )
-
axis.ResetAutoScale( primaryPane, g );
-
foreach ( Y2Axis axis in primaryPane.Y2AxisList )
-
axis.ResetAutoScale( primaryPane, g );
-
}
-
-
// Provide Callback to notify the user of zoom events
-
if ( this.ZoomEvent != null )
-
this.ZoomEvent( this, oldState, new ZoomState( primaryPane, ZoomState.StateType.Zoom ) );
-
-
g.Dispose();
-
Refresh();
-
}
-
}
-
*/
-
/*
-
public void ZoomOutAll( GraphPane primaryPane )
-
{
-
if ( primaryPane != null && !primaryPane.ZoomStack.IsEmpty )
-
{
-
ZoomState.StateType type = primaryPane.ZoomStack.Top.Type;
-
-
ZoomState oldState = new ZoomState( primaryPane, type );
-
//ZoomState newState = pane.ZoomStack.PopAll( pane );
-
ZoomState newState = null;
-
if ( _isSynchronizeXAxes || _isSynchronizeYAxes )
-
{
-
foreach ( GraphPane pane in _masterPane._paneList )
-
{
-
ZoomState state = pane.ZoomStack.PopAll( pane );
-
if ( pane == primaryPane )
-
newState = state;
-
}
-
}
-
else
-
newState = primaryPane.ZoomStack.PopAll( primaryPane );
-
-
// Provide Callback to notify the user of zoom events
-
if ( this.ZoomEvent != null )
-
this.ZoomEvent( this, oldState, newState );
-
-
Refresh();
-
}
-
}
-
-
*/
-
-
/// <summary>
-
/// Handler for the "UnZoom/UnPan" context menu item. Restores the scale ranges to the values
-
/// before the last zoom or pan operation.
-
/// </summary>
-
/// <param name="sender"></param>
-
/// <param name="e"></param>
-
protected void MenuClick_ZoomOut( System.Object sender, System.EventArgs e )
-
{
-
if ( _masterPane != null )
-
{
-
GraphPane pane = _masterPane.FindPane( _menuClickPt );
-
ZoomOut( pane );
-
}
-
}
-
-
/// <summary>
-
/// Handler for the "UnZoom/UnPan" context menu item. Restores the scale ranges to the values
-
/// before the last zoom, pan, or scroll operation.
-
/// </summary>
-
/// <remarks>
-
/// Triggers a <see cref="ZoomEvent" /> for any type of undo (including pan, scroll, zoom, and
-
/// wheelzoom). This method will affect all the
-
/// <see cref="GraphPane" /> objects in the <see cref="MasterPane" /> if
-
/// <see cref="IsSynchronizeXAxes" /> or <see cref="IsSynchronizeYAxes" /> is true.
-
/// </remarks>
-
/// <param name="primaryPane">The primary <see cref="GraphPane" /> object which is to be
-
/// zoomed out</param>
-
public void ZoomOut( GraphPane primaryPane )
-
{
-
if ( primaryPane != null && !primaryPane.ZoomStack.IsEmpty )
-
{
-
ZoomState.StateType type = primaryPane.ZoomStack.Top.Type;
-
-
ZoomState oldState = new ZoomState( primaryPane, type );
-
ZoomState newState = null;
-
if ( _isSynchronizeXAxes || _isSynchronizeYAxes )
-
{
-
foreach ( GraphPane pane in _masterPane._paneList )
-
{
-
ZoomState state = pane.ZoomStack.Pop( pane );
-
if ( pane == primaryPane )
-
newState = state;
-
}
-
}
-
else
-
newState = primaryPane.ZoomStack.Pop( primaryPane );
-
-
// Provide Callback to notify the user of zoom events
-
if ( this.ZoomEvent != null )
-
this.ZoomEvent( this, oldState, newState );
-
-
Refresh();
-
}
-
}
-
-
/// <summary>
-
/// Handler for the "Undo All Zoom/Pan" context menu item. Restores the scale ranges to the values
-
/// before all zoom and pan operations
-
/// </summary>
-
/// <remarks>
-
/// This method differs from the <see cref="RestoreScale" /> method in that it sets the scales
-
/// to their initial setting prior to any user actions. The <see cref="RestoreScale" /> method
-
/// sets the scales to full auto mode (regardless of what the initial setting may have been).
-
/// </remarks>
-
/// <param name="sender"></param>
-
/// <param name="e"></param>
-
protected void MenuClick_ZoomOutAll( System.Object sender, System.EventArgs e )
-
{
-
if ( _masterPane != null )
-
{
-
GraphPane pane = _masterPane.FindPane( _menuClickPt );
-
ZoomOutAll( pane );
-
}
-
}
-
-
/// <summary>
-
/// Handler for the "Undo All Zoom/Pan" context menu item. Restores the scale ranges to the values
-
/// before all zoom and pan operations
-
/// </summary>
-
/// <remarks>
-
/// This method differs from the <see cref="RestoreScale" /> method in that it sets the scales
-
/// to their initial setting prior to any user actions. The <see cref="RestoreScale" /> method
-
/// sets the scales to full auto mode (regardless of what the initial setting may have been).
-
/// </remarks>
-
/// <param name="primaryPane">The <see cref="GraphPane" /> object which is to be zoomed out</param>
-
public void ZoomOutAll( GraphPane primaryPane )
-
{
-
if ( primaryPane != null && !primaryPane.ZoomStack.IsEmpty )
-
{
-
ZoomState.StateType type = primaryPane.ZoomStack.Top.Type;
-
-
ZoomState oldState = new ZoomState( primaryPane, type );
-
//ZoomState newState = pane.ZoomStack.PopAll( pane );
-
ZoomState newState = null;
-
if ( _isSynchronizeXAxes || _isSynchronizeYAxes )
-
{
-
foreach ( GraphPane pane in _masterPane._paneList )
-
{
-
ZoomState state = pane.ZoomStack.PopAll( pane );
-
if ( pane == primaryPane )
-
newState = state;
-
}
-
}
-
else
-
newState = primaryPane.ZoomStack.PopAll( primaryPane );
-
-
// Provide Callback to notify the user of zoom events
-
if ( this.ZoomEvent != null )
-
this.ZoomEvent( this, oldState, newState );
-
-
Refresh();
-
}
-
}
-
-
#endregion
-
-
}
-
}
