Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / TableLayoutPanelDesigner.cs / 5 / TableLayoutPanelDesigner.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms.Design {
using System.CodeDom;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System;
using System.Design;
using System.Drawing;
using System.Drawing.Design;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using System.Windows.Forms.Design;
using System.Windows.Forms.Design.Behavior;
using Microsoft.Win32;
///
/// This class handles all design time behavior for the TableLayoutPanel class. This class
/// is in charge of: making sure all rows/columns are correctly rendered, all drag/move
/// gestures correctly add/insert controls into the table, and new controls are added to the
/// appropriate cell(s).
///
internal class TableLayoutPanelDesigner : FlowPanelDesigner {
private TableLayoutPanelBehavior tlpBehavior;//every resize col/row glyph is associated with this instance of behavior
private Point droppedCellPosition = InvalidPoint;//used to insert new children
// NEVER USE undoing DIRECTLY. ALWAYS USE THE PROPERTY
private bool undoing = false;
private UndoEngine undoEngine = null;
private Control localDragControl;//only valid if we're currently dragging a child control of the table
private ArrayList dragComps; //the components we are dragging
private DesignerVerbCollection verbs;//add col/row and remove col/row tab verbs
private DesignerTableLayoutControlCollection controls;
private DesignerVerb removeRowVerb;
private DesignerVerb removeColVerb;
DesignerActionListCollection actionLists = null;//action list for the Smart Tag
private BaseContextMenuStrip designerContextMenuStrip = null;
private int curRow = -1; //row cursor was over when context menu was dropped
private int curCol= -1; //col cursor was over when context menu was dropped
IComponentChangeService compSvc = null;
private PropertyDescriptor rowStyleProp;
private PropertyDescriptor colStyleProp;
// Only used when adding controls via the toolbox
private int rowCountBeforeAdd = 0; // What's the row count before a control is added
private int colCountBeforeAdd = 0; // Ditto for column
private int ensureSuspendCount = 0;
///
/// The instance to our Behavior that every glyph shares. This is
/// demand created only once.
///
private TableLayoutPanelBehavior Behavior {
get {
if (tlpBehavior == null) {
tlpBehavior = new TableLayoutPanelBehavior(Table, this, Component.Site);
}
return tlpBehavior;
}
}
// SPECIAL HANDLING - VSWhidbey 483915
//
// The only reason we shadow ColumnStyles and RowStyles is to control
// how they are serialized out. If the form is not localizable, then we
// want to serialize to code. If the form is localized, then we do not
// want to serialize to code. This is because the TLP has special logic
// that adds these properties to the resx file in this case. It needs this
// special code, since the properties are not marked as localizable.
// If we also added these to the code, we would actually end up with double
// the number of styles in the collections.
//
// TLP has no setter
private TableLayoutColumnStyleCollection ColumnStyles {
get {
return Table.ColumnStyles;
}
}
// TLP has no setter
private TableLayoutRowStyleCollection RowStyles {
get {
return Table.RowStyles;
}
}
public int RowCount {
get {
return Table.RowCount;
}
set {
if (value <= 0) {
throw new ArgumentException(SR.GetString(SR.TableLayoutPanelDesignerInvalidColumnRowCount, "RowCount"));
}
else {
Table.RowCount = value;
}
}
}
public int ColumnCount {
get {
return Table.ColumnCount;
}
set {
if (value <= 0) {
throw new ArgumentException(SR.GetString(SR.TableLayoutPanelDesignerInvalidColumnRowCount, "ColumnCount"));
}
else {
Table.ColumnCount = value;
}
}
}
[SuppressMessage("Microsoft.Performance", "CA1808:AvoidCallsThatBoxValueTypes")]
private bool IsLocalizable() {
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null) {
PropertyDescriptor prop = TypeDescriptor.GetProperties(host.RootComponent)["Localizable"];
if (prop != null && prop.PropertyType == typeof(bool)) {
return (bool) prop.GetValue(host.RootComponent);
}
}
return false;
}
private bool ShouldSerializeColumnStyles() {
return !IsLocalizable();
}
private bool ShouldSerializeRowStyles() {
return !IsLocalizable();
}
// END SPECIAL HANDLING
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
private DesignerTableLayoutControlCollection Controls {
get {
if (controls == null) {
controls = new DesignerTableLayoutControlCollection((TableLayoutPanel)Control);
}
return controls;
}
}
private ContextMenuStrip DesignerContextMenuStrip {
get {
if (designerContextMenuStrip == null) {
designerContextMenuStrip = new BaseContextMenuStrip(Component.Site, Table);
// Remove all the verbs -- except the Edit Rows and Columns
ContextMenuStripGroup group = designerContextMenuStrip.Groups[StandardGroups.Verbs];
foreach (DesignerVerb verb in Verbs) {
if (verb.Text.Equals(SR.GetString(SR.TableLayoutPanelDesignerEditRowAndCol))) {
continue;
}
foreach (ToolStripItem item in group.Items) {
if (item.Text.Equals(verb.Text)) {
group.Items.Remove(item);
break;
}
}
}
// Now build the new menus
ToolStripDropDownMenu rowMenu = BuildMenu(true);
ToolStripDropDownMenu colMenu = BuildMenu(false);
ToolStripMenuItem row = new ToolStripMenuItem();
row.DropDown = rowMenu;
row.Text = SR.GetString(SR.TableLayoutPanelDesignerRowMenu);
ToolStripMenuItem col = new ToolStripMenuItem();
col.DropDown = colMenu;
col.Text = SR.GetString(SR.TableLayoutPanelDesignerColMenu);
group.Items.Insert(0, col);
group.Items.Insert(0, row);
group = designerContextMenuStrip.Groups[StandardGroups.Edit];
foreach (ToolStripItem item in group.Items) {
if (item.Text.Equals(SR.GetString(SR.ContextMenuCut))) {
item.Text = SR.GetString(SR.TableLayoutPanelDesignerContextMenuCut);
}
else if (item.Text.Equals(SR.GetString(SR.ContextMenuCopy))) {
item.Text = SR.GetString(SR.TableLayoutPanelDesignerContextMenuCopy);
}
else if (item.Text.Equals(SR.GetString(SR.ContextMenuDelete))) {
item.Text = SR.GetString(SR.TableLayoutPanelDesignerContextMenuDelete);
}
}
}
return designerContextMenuStrip;
}
}
///
/// Returns true if the host is loading.
///
private bool IsLoading {
get {
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null) {
return host.Loading;
}
return false;
}
}
///
/// Returns our runtime TableLayoutPanel instance.
///
internal TableLayoutPanel Table {
get {
return Component as TableLayoutPanel;
}
}
private bool Undoing {
get {
if (undoEngine == null) {
undoEngine = GetService(typeof(UndoEngine)) as UndoEngine;
if (undoEngine != null) {
undoEngine.Undoing += new EventHandler(this.OnUndoing);
if (undoEngine.UndoInProgress) {
undoing = true;
undoEngine.Undone += new EventHandler(this.OnUndone);
}
}
}
return undoing;
}
set {
undoing = value;
}
}
///
/// The designer verbs we'll surface for this table.
///
// We need to add separate verbs (and not use the ones from the DesignerActionPanel), since
// we need to be able to disable/enable the Remove items based on the number of rows/cols, and
// you cannot do that via the DesignerAction stuff.
// These verbs would be promoted to the DAP, but we need a DAP since we want it to AutoShow.
public override DesignerVerbCollection Verbs {
get {
if (verbs == null) {
removeColVerb = new DesignerVerb(SR.GetString(SR.TableLayoutPanelDesignerRemoveColumn), new EventHandler(this.OnVerbRemove));
removeRowVerb = new DesignerVerb(SR.GetString(SR.TableLayoutPanelDesignerRemoveRow), new EventHandler(this.OnVerbRemove));
verbs = new DesignerVerbCollection();
verbs.Add(new DesignerVerb(SR.GetString(SR.TableLayoutPanelDesignerAddColumn), new EventHandler(this.OnVerbAdd)));
verbs.Add(new DesignerVerb(SR.GetString(SR.TableLayoutPanelDesignerAddRow), new EventHandler(this.OnVerbAdd)));
verbs.Add(removeColVerb);
verbs.Add(removeRowVerb);
verbs.Add(new DesignerVerb(SR.GetString(SR.TableLayoutPanelDesignerEditRowAndCol), new EventHandler(this.OnVerbEdit)));
CheckVerbStatus();
}
return verbs;
}
}
private void RefreshSmartTag() {
DesignerActionUIService actionUIService = (DesignerActionUIService)GetService(typeof(DesignerActionUIService));
if (actionUIService != null)
{
actionUIService.Refresh(Component);
}
}
private void CheckVerbStatus() {
if (Table != null)
{
if (removeColVerb != null) {
bool colState = Table.ColumnCount > 1;
if (removeColVerb.Enabled != colState) {
removeColVerb.Enabled = colState;
}
}
if (removeRowVerb != null) {
bool rowState = Table.RowCount > 1;
if (removeRowVerb.Enabled != rowState) {
removeRowVerb.Enabled = rowState;
}
}
RefreshSmartTag();
}
}
///
/// Gets the design-time action lists supported by the component associated with the
/// designer.
///
public override DesignerActionListCollection ActionLists {
get {
if (actionLists == null)
{
BuildActionLists();
}
return actionLists;
}
}
private ToolStripDropDownMenu BuildMenu(bool isRow) {
ToolStripMenuItem add = new ToolStripMenuItem();
ToolStripMenuItem insert = new ToolStripMenuItem();
ToolStripMenuItem delete = new ToolStripMenuItem();
ToolStripSeparator separator = new ToolStripSeparator();
ToolStripLabel label = new ToolStripLabel();
ToolStripMenuItem absolute = new ToolStripMenuItem();
ToolStripMenuItem percent = new ToolStripMenuItem();
ToolStripMenuItem autosize = new ToolStripMenuItem();
add.Text = SR.GetString(SR.TableLayoutPanelDesignerAddMenu);
add.Tag = isRow;
add.Name = "add";
add.Click += new System.EventHandler(this.OnAddClick);
insert.Text = SR.GetString(SR.TableLayoutPanelDesignerInsertMenu);
insert.Tag = isRow;
insert.Name = "insert";
insert.Click += new System.EventHandler(this.OnInsertClick);
delete.Text = SR.GetString(SR.TableLayoutPanelDesignerDeleteMenu);
delete.Tag = isRow;
delete.Name = "delete";
delete.Click += new System.EventHandler(this.OnDeleteClick);
label.Text = SR.GetString(SR.TableLayoutPanelDesignerLabelMenu);
if (SR.GetString(SR.TableLayoutPanelDesignerDontBoldLabel) == "0") {
label.Font = new Font(label.Font, FontStyle.Bold);
}
label.Name = "sizemode";
absolute.Text = SR.GetString(SR.TableLayoutPanelDesignerAbsoluteMenu);
absolute.Tag = isRow;
absolute.Name = "absolute";
absolute.Click += new System.EventHandler(this.OnAbsoluteClick);
percent.Text = SR.GetString(SR.TableLayoutPanelDesignerPercentageMenu);
percent.Tag = isRow;
percent.Name = "percent";
percent.Click += new System.EventHandler(this.OnPercentClick);
autosize.Text = SR.GetString(SR.TableLayoutPanelDesignerAutoSizeMenu);
autosize.Tag = isRow;
autosize.Name = "autosize";
autosize.Click += new System.EventHandler(this.OnAutoSizeClick);
ToolStripDropDownMenu menu = new ToolStripDropDownMenu();
menu.Items.AddRange(new ToolStripItem[] {add, insert, delete, separator, label, absolute, percent, autosize});
menu.Tag = isRow;
menu.Opening += new System.ComponentModel.CancelEventHandler(this.OnRowColMenuOpening);
IUIService uis = GetService(typeof(IUIService)) as IUIService;
if (uis != null) {
menu.Renderer = (ToolStripProfessionalRenderer)uis.Styles["VsRenderer"];
}
return menu;
}
private void BuildActionLists() {
actionLists = new DesignerActionListCollection();
// Add Column action list
actionLists.Add(new TableLayouPanelRowColumnActionList(this));
// if one actionList has AutoShow == true then the chrome panel will popup when the user DnD the DataGridView onto the form
// It would make sense to promote AutoShow to DesignerActionListCollection.
// But we don't own the DesignerActionListCollection so we just set AutoShow on the first ActionList
//
actionLists[0].AutoShow = true;
}
private class TableLayouPanelRowColumnActionList : DesignerActionList {
TableLayoutPanelDesigner owner;
public TableLayouPanelRowColumnActionList(TableLayoutPanelDesigner owner) : base(owner.Component)
{
this.owner = owner;
}
public override DesignerActionItemCollection GetSortedActionItems() {
DesignerActionItemCollection items = new DesignerActionItemCollection();
// We don't promote these Items to DesignerVerbs, since we need to be able
// to disable/enable the Remove entries, based on the number of Rows/Cols.
// Unfortunately, you cannot do that via the DesignerAction stuff.
items.Add(new DesignerActionMethodItem(this,
"AddColumn", // method name
SR.GetString(SR.TableLayoutPanelDesignerAddColumn), // display name
false)); // promoteToDesignerVerb
items.Add(new DesignerActionMethodItem(this,
"AddRow", // method name
SR.GetString(SR.TableLayoutPanelDesignerAddRow), // display name
false)); // promoteToDesignerVerb
if (owner.Table.ColumnCount > 1) {
items.Add(new DesignerActionMethodItem(this,
"RemoveColumn", // method name
SR.GetString(SR.TableLayoutPanelDesignerRemoveColumn), // display name
false)); // promoteToDesignerVerb
}
if (owner.Table.RowCount > 1) {
items.Add(new DesignerActionMethodItem(this,
"RemoveRow", // method name
SR.GetString(SR.TableLayoutPanelDesignerRemoveRow), // display name
false)); // promoteToDesignerVerb
}
items.Add(new DesignerActionMethodItem(this,
"EditRowAndCol", // method name
SR.GetString(SR.TableLayoutPanelDesignerEditRowAndCol), // display name
false)); // promoteToDesignerVerb
return items;
}
// Called through reflection
[SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
public void AddColumn() {
this.owner.OnAdd(false);
}
// Called through reflection
[SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
public void AddRow() {
this.owner.OnAdd(true);
}
// Called through reflection
[SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
public void RemoveColumn() {
this.owner.OnRemove(false);
}
// Called through reflection
[SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
public void RemoveRow() {
this.owner.OnRemove(true);
}
// Called through reflection
[SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
public void EditRowAndCol() {
this.owner.OnEdit();
}
}
///
/// Called privately - we'll un-sync the removed event and quietly remove the control
// from the table.
///
private void RemoveControlInternal(Control c) {
Table.ControlRemoved -= new ControlEventHandler(this.OnControlRemoved);
Table.Controls.Remove(c);
Table.ControlRemoved += new ControlEventHandler(this.OnControlRemoved);
}
///
/// Called within this designer - this method will un-sync the
/// 'ControlAdded' event and add a control (aboslutely positioned)
/// to the row and column specified.
///
private void AddControlInternal(Control c, int col, int row) {
Table.ControlAdded -= new ControlEventHandler(this.OnControlAdded);
Table.Controls.Add(c, col, row);
Table.ControlAdded += new ControlEventHandler(this.OnControlAdded);
}
///
/// Called in response to controls being added - through dragging, copy/paste, toolbox, etc...
/// This method removes the control and re-adds it back to the table at an absolute
/// position. This is done for more of a deterministic behavior when rows/cols change in
/// our table.
///
// Standard 'catch all - rethrow critical' exception pattern
[SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]
[SuppressMessage("Microsoft.Security", "CA2102:CatchNonClsCompliantExceptionsInGeneralHandlers")]
private void ControlAddedInternal(Control control, Point newControlPosition, bool localReposition, bool fullTable, DragEventArgs de) {
//If the table is full - we'll want to 'autogrow' either the row or column based on the grow style property
//before we actually add the control.
if (fullTable) {
if (Table.GrowStyle == TableLayoutPanelGrowStyle.AddRows) {
PropertyDescriptor rowProp = TypeDescriptor.GetProperties(Table)["RowCount"];
if (rowProp != null) {
rowProp.SetValue(Table, Table.GetRowHeights().Length);
}
newControlPosition.X = 0;
newControlPosition.Y = Table.RowCount - 1;
}
else if (Table.GrowStyle == TableLayoutPanelGrowStyle.AddColumns) {
PropertyDescriptor colProp = TypeDescriptor.GetProperties(Table)["ColumnCount"];
if (colProp != null) {
colProp.SetValue(Table, Table.GetColumnWidths().Length);
}
newControlPosition.X = Table.ColumnCount - 1;
newControlPosition.Y = 0;
}
else {
//fixed growstyle - what do we do here?
}
}
//Here, we are adding a control to our table - we need to make sure we
// 1) correctly place the new control at its drop location, and
// 2) perform a 'swap' if this is entirely a local
// reposition.
DesignerTransaction trans = null;
PropertyDescriptor controlsProp = TypeDescriptor.GetProperties(Table)["Controls"];
//find the control that currently resides at our newControlPosition - we'll want to either
//remove it or swap it.
try {
// Are we doing a local copy
bool localCopy = ((de != null) && (de.Effect == DragDropEffects.Copy) && localReposition);
Control existingControl = ((TableLayoutPanel)Control).GetControlFromPosition(newControlPosition.X, newControlPosition.Y);
if (localCopy) {
Debug.Assert(existingControl == null, "We shouldn't be able to do a local copy of a cell with an existing control");
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null) {
trans = host.CreateTransaction(SR.GetString(SR.BehaviorServiceCopyControl, control.Site.Name));
}
// Need to do this after the transaction is created
PropChanging(controlsProp);
}
//does the newControlPosition contain a valid control
//if so - we need to perform a 'swap' function if this is local - or default
//to controls.add if this is from an external source
else if (existingControl != null && !existingControl.Equals(control)) {
if (localReposition) {
// If we're swapping controls, create a DesignerTransaction
// so this can be undoable.
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null) {
trans = host.CreateTransaction(SR.GetString(SR.TableLayoutPanelDesignerControlsSwapped, control.Site.Name, existingControl.Site.Name));
}
// Need to do this after the transaction is created
PropChanging(controlsProp);
RemoveControlInternal(existingControl);//we found our control to swap
}
else {
//here we externally dragged a control onto a valid control in our table
//we'll try to find a place to put it (since we shouldn't be here if our table
//was full
// [....] -- we shouldn't ever get here...
PropChanging(controlsProp);
existingControl = null;//null this out since we're not swapping
}
}
else {
//here we have a truly empty cell
// If we are not doing a local move, then the DropSourceBehavior created the transaction for us
if (localReposition) {
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null) {
trans = host.CreateTransaction(SR.GetString(SR.BehaviorServiceMoveControl, control.Site.Name));
}
}
existingControl = null;
PropChanging(controlsProp);
}
//Need to do this after the transaction has been created
if (localCopy) {
ArrayList temp = new ArrayList();
temp.Add(control);
temp = DesignerUtils.CopyDragObjects(temp, Component.Site) as ArrayList;
control = temp[0] as Control;
}
//if we are locally repositioning this control - remove it (internally)
//from the table's child collection and add something in its place. This
//will be a control to swap it with
if (localReposition) {
Point oldPosition = GetControlPosition(control);
if (oldPosition != InvalidPoint) {
RemoveControlInternal(control);
if (oldPosition != newControlPosition) {//guard against dropping it back on itself
if (existingControl != null) {
//we have something to swap...
AddControlInternal(existingControl, oldPosition.X, oldPosition.Y);
}
}
}
}
//Finally - set our new control to the new position
if (localReposition) {
//If we are doing a local drag, then the control previously got removed
AddControlInternal(control, newControlPosition.X, newControlPosition.Y);
}
else {
//If not, then the control has already been added, and all we need to do is set the position
Table.SetCellPosition(control, new TableLayoutPanelCellPosition(newControlPosition.X, newControlPosition.Y));
}
PropChanged(controlsProp);
if (de != null) {
base.OnDragComplete(de);
}
if (trans != null) {
trans.Commit();
trans = null;
}
// Set the selection to be the newly added control - but only if we are doing a local copy
if (localCopy) {
ISelectionService selSvc = GetService(typeof(ISelectionService)) as ISelectionService;
if (selSvc != null) {
selSvc.SetSelectedComponents(new object[] {control}, SelectionTypes.Primary | SelectionTypes.Replace);
}
}
}
// VSWhidbey #390285
catch (ArgumentException argumentEx) {
IUIService uiService = GetService(typeof(IUIService)) as IUIService;
if (uiService != null) {
uiService.ShowError(argumentEx);
}
}
catch( Exception ex )
{
if(ClientUtils.IsCriticalException(ex))
{
throw;
}
}
finally {
if (trans != null) {
trans.Cancel();
}
}
}
private void CreateEmptyTable() {
//set the table's default rows and columns
PropertyDescriptor colProp = TypeDescriptor.GetProperties(Table)["ColumnCount"];
if (colProp != null) {
colProp.SetValue(Table, DesignerUtils.DEFAULTCOLUMNCOUNT);
}
PropertyDescriptor rowProp = TypeDescriptor.GetProperties(Table)["RowCount"];
if (rowProp != null) {
rowProp.SetValue(Table, DesignerUtils.DEFAULTROWCOUNT);
}
//this will make sure we have styles created for every row & column
EnsureAvailableStyles();
InitializeNewStyles();
}
private void InitializeNewStyles() {
Size tableSize = Table.Size;
//adjust the two absolutely positioned columns
Table.ColumnStyles[0].SizeType = SizeType.Percent;
Table.ColumnStyles[0].Width = DesignerUtils.MINIMUMSTYLEPERCENT;
Table.ColumnStyles[1].SizeType = SizeType.Percent;
Table.ColumnStyles[1].Width = DesignerUtils.MINIMUMSTYLEPERCENT;
//adjust two absolutely positioned rows
Table.RowStyles[0].SizeType = SizeType.Percent;
Table.RowStyles[0].Height = DesignerUtils.MINIMUMSTYLEPERCENT;
Table.RowStyles[1].SizeType = SizeType.Percent;
Table.RowStyles[1].Height = DesignerUtils.MINIMUMSTYLEPERCENT;
}
///
/// Disposes of this object and all events and cached services.
///
protected override void Dispose(bool disposing) {
if (disposing) {
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
if (host != null) {
host.TransactionClosing -= new DesignerTransactionCloseEventHandler(this.OnTransactionClosing);
}
if (undoEngine != null) {
if (Undoing) {
undoEngine.Undone -= new EventHandler(this.OnUndone);
}
undoEngine.Undoing -= new EventHandler(this.OnUndoing);
}
if (compSvc != null) {
compSvc.ComponentChanged -= new ComponentChangedEventHandler(this.OnComponentChanged);
compSvc.ComponentChanging -= new ComponentChangingEventHandler(this.OnComponentChanging);
}
if (Table != null) {
Table.ControlAdded -= new ControlEventHandler(this.OnControlAdded);
Table.ControlRemoved -= new ControlEventHandler(this.OnControlRemoved);
}
rowStyleProp = null;
colStyleProp = null;
}
base.Dispose(disposing);
}
///
/// This draws a nice border around our panel and each cell only
/// if the cell border styles are not set or 'none'.
///
protected override void DrawBorder(Graphics graphics) {
if (Table.CellBorderStyle != TableLayoutPanelCellBorderStyle.None) {
//only draw a fake border if there is no borderstyle
return;
}
base.DrawBorder(graphics);
Rectangle rc = Control.DisplayRectangle;
rc.Width --;
rc.Height--;
int[] cw = Table.GetColumnWidths();
int[] rh = Table.GetRowHeights();
using (Pen pen = BorderPen) {
if (cw.Length > 1) {
bool isRTL = (Table.RightToLeft == RightToLeft.Yes);
// offset by padding
int startX = isRTL ? rc.Right : rc.Left;
for (int i = 0; i < cw.Length - 1; i++) {
if (isRTL) {
startX -= cw[i];
}
else {
startX += cw[i];
}
graphics.DrawLine(pen, startX, rc.Top, startX, rc.Bottom);
}
}
if (rh.Length > 1) {
int startY = rc.Top;
for (int i = 0; i < rh.Length - 1; i++) {
startY += rh[i];
graphics.DrawLine(pen, rc.Left, startY, rc.Right, startY);
}
}
}
}
//The StyleCollectionEditor uses these to make sure that the Styles collection
//doesn't change underneath us
internal void SuspendEnsureAvailableStyles() {
ensureSuspendCount++;
}
//The StyleCollectionEditor uses these to make sure that the Styles collection
//doesn't change underneath us
internal void ResumeEnsureAvailableStyles(bool performEnsure) {
if (ensureSuspendCount > 0) {
ensureSuspendCount--;
if (ensureSuspendCount == 0 && performEnsure) {
EnsureAvailableStyles();
}
}
}
///
/// This is method ensures that for every row and column our
/// runtime control has - that we have appropriate row and column
/// styles for them.
///
private bool EnsureAvailableStyles() {
if (IsLoading || Undoing || ensureSuspendCount > 0) {
return false;
}
int[] cw = Table.GetColumnWidths();
int[] rh = Table.GetRowHeights();
Table.SuspendLayout();
try {
//if we have more columns then column styles add some...
if (cw.Length > Table.ColumnStyles.Count) {
int colDifference = cw.Length - Table.ColumnStyles.Count;
PropChanging(rowStyleProp);
for(int i = 0; i < colDifference; i++) {
Table.ColumnStyles.Add(new ColumnStyle(SizeType.Absolute, DesignerUtils.MINIMUMSTYLESIZE));
}
PropChanged(rowStyleProp);
}
//if we have more rows then row styles add some...
if (rh.Length > Table.RowStyles.Count) {
int rowDifference = rh.Length - Table.RowStyles.Count;
PropChanging(colStyleProp);
for(int i = 0; i < rowDifference; i++) {
Table.RowStyles.Add(new RowStyle(SizeType.Absolute, DesignerUtils.MINIMUMSTYLESIZE));
}
PropChanged(colStyleProp);
}
}
finally {
Table.ResumeLayout();
}
return true;
}
///
/// Takes a drageventargs and extracts the 0th dragging control.
///
private Control ExtractControlFromDragEvent(DragEventArgs de) {
DropSourceBehavior.BehaviorDataObject data = de.Data as DropSourceBehavior.BehaviorDataObject;
if (data != null) {
dragComps = new ArrayList(data.DragComponents);
return dragComps[0] as Control;
}
return null;
}
///
/// Called on drag-drop operations, give the point passed in,
/// this method will attempt to find the appropriate cell.
///
private Point GetCellPosition(Point pos) {
//get some runtime table info
int[] rows = Table.GetRowHeights();
int[] columns = Table.GetColumnWidths();
//By using DisplayRectangle here we handle the case where we are scrolled. VSWhidbey #399557
Point startingPoint = Table.PointToScreen(Table.DisplayRectangle.Location);
Rectangle bounds = new Rectangle(startingPoint, Table.DisplayRectangle.Size);
Point position = new Point(-1, -1);
bool isRTL = Table.RightToLeft == RightToLeft.Yes;
int offset = isRTL ? bounds.Right : bounds.X;
//loop through the columns and identify where the mouse is
for(int i = 0; i < columns.Length; i++) {
if (isRTL) {
if (pos.X >= offset - columns[i]) {
position.X = i;
break;
}
offset -= columns[i];
}
else {
if (pos.X <= offset + columns[i]) {
position.X = i;
break;
}
offset += columns[i];
}
}
if (position.X < 0) {
//couldn't find it - then add it to the end
position.X = columns.Length;
}
offset = bounds.Y;
//loop through the rows and identify where the mouse is
for(int i = 0; i < rows.Length; i++) {
if (pos.Y <= offset + rows[i]) {
position.Y = i;
break;
}
offset += rows[i];
}
if (position.Y < 0) {
//couldn't find it - then add it to the end
position.Y = rows.Length;
}
return position;
}
///
/// Reverse lookup into our table. Given a control we'll find
/// the location (colxrow) in the table.
///
private Point GetControlPosition(Control control) {
TableLayoutPanelCellPosition pos = Table.GetPositionFromControl(control);
if ((pos.Row == -1) && (pos.Column == -1)) {
return InvalidPoint;
}
return new Point (pos.Column, pos.Row);
}
///
/// This method will add glyphs for every row and column in our Table.
///
public override GlyphCollection GetGlyphs(GlyphSelectionType selectionType) {
GlyphCollection glyphs = base.GetGlyphs(selectionType);
PropertyDescriptor prop = TypeDescriptor.GetProperties(Component)["Locked"];
bool locked = (prop != null) ? ((bool)prop.GetValue(Component)) : false;
//Before adding glyphs for every row/column, make sure we have a column/rowstyle for every column/row
bool safeToRefresh = EnsureAvailableStyles();
//if we're somehow selected, not locked, and not inherited -then offer up glyphs for every
//column/row line
if (selectionType != GlyphSelectionType.NotSelected && !locked && InheritanceAttribute != InheritanceAttribute.InheritedReadOnly) {
//get the correctly translated bounds
//By using DisplayRectangle here we handle the case where we are scrolled. VSWhidbey #399689
Point loc = BehaviorService.MapAdornerWindowPoint(Table.Handle, Table.DisplayRectangle.Location);
Rectangle bounds = new Rectangle(loc, Table.DisplayRectangle.Size);
Point controlLoc = BehaviorService.ControlToAdornerWindow(Control);
Rectangle checkBounds = new Rectangle(controlLoc, Control.ClientSize); // Can't use Control.Size since that will include any scrollbar
int[] cw = Table.GetColumnWidths();
int[] rh = Table.GetRowHeights();
int halfSize = DesignerUtils.RESIZEGLYPHSIZE / 2;
bool isRTL = (Table.RightToLeft == RightToLeft.Yes);
int startLoc = isRTL ? bounds.Right : bounds.X;
if (safeToRefresh) {
//add resize glyphs for each column and row
for (int i = 0; i < cw.Length - 1; i++) {
//Do not add a glyph for columns of 0 width. This can happen for percentage columns, where the table is not
//big enough for there to be any space for percentage columns
if (cw[i] == 0) {
continue;
}
if (isRTL) {
startLoc -= cw[i];
}
else {
startLoc += cw[i];//x offset of column line
}
Rectangle gBounds = new Rectangle(startLoc - halfSize, checkBounds.Top, DesignerUtils.RESIZEGLYPHSIZE, checkBounds.Height);
//Don't add glyphs for columns that are not within the clientrectangle
if (!checkBounds.Contains(gBounds)) {
continue;
}
Debug.Assert(Table.ColumnStyles[i] != null, "Table's ColumnStyle[" + i + "] is null!");
if (Table.ColumnStyles[i] != null) {
TableLayoutPanelResizeGlyph g = new TableLayoutPanelResizeGlyph (gBounds, Table.ColumnStyles[i], Cursors.VSplit, Behavior);
glyphs.Add(g);
}
}
startLoc = bounds.Y;//reset for the rows...
for (int i = 0; i < rh.Length - 1; i++) {
//Do not add a glyph for rows of 0 height. This can happen for percentage columns, where the table is not
//big enough for there to be any space for percentage columns
if (rh[i] == 0) {
continue;
}
startLoc += rh[i];//y offset of row line
Rectangle gBounds = new Rectangle(checkBounds.Left, startLoc - halfSize, checkBounds.Width, DesignerUtils.RESIZEGLYPHSIZE);
if (!checkBounds.Contains(gBounds)) {
continue;
}
Debug.Assert(Table.RowStyles[i] != null, "Table's RowStyle[" + i + "] is null!");
if (Table.RowStyles[i] != null) {
TableLayoutPanelResizeGlyph g = new TableLayoutPanelResizeGlyph (gBounds, Table.RowStyles[i], Cursors.HSplit, Behavior);
glyphs.Add(g);
}
}
}
}
return glyphs;
}
///
/// Overrides the base and syncs load, change, and child added events.
///
public override void Initialize(IComponent component) {
base.Initialize(component);
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
if (host != null) {
host.TransactionClosing += new DesignerTransactionCloseEventHandler(this.OnTransactionClosing);
compSvc = host.GetService(typeof(IComponentChangeService)) as IComponentChangeService;
}
if (compSvc != null) {
compSvc.ComponentChanging += new ComponentChangingEventHandler(this.OnComponentChanging);
compSvc.ComponentChanged += new ComponentChangedEventHandler(this.OnComponentChanged);
}
Control.ControlAdded += new ControlEventHandler(this.OnControlAdded);
Control.ControlRemoved += new ControlEventHandler(this.OnControlRemoved);
rowStyleProp = TypeDescriptor.GetProperties(Table)["RowStyles"];
colStyleProp = TypeDescriptor.GetProperties(Table)["ColumnStyles"];
// VSWhidbey #424845. If the TLP is inheritedreadonly, so should all of the children
if (InheritanceAttribute == InheritanceAttribute.InheritedReadOnly) {
for (int i = 0; i < Control.Controls.Count; i++) {
TypeDescriptor.AddAttributes(Control.Controls[i], InheritanceAttribute.InheritedReadOnly);
}
}
}
// per VSWhidbey #424850 adding this to this class...
protected override InheritanceAttribute InheritanceAttribute {
get {
if ((base.InheritanceAttribute == InheritanceAttribute.Inherited)
|| (base.InheritanceAttribute == InheritanceAttribute.InheritedReadOnly)) {
return InheritanceAttribute.InheritedReadOnly;
}
return base.InheritanceAttribute;
}
}
///
/// After a new comp is initialized - make sure our table has 2 rows and 2 columsn.
///
public override void InitializeNewComponent(IDictionary defaultValues) {
base.InitializeNewComponent(defaultValues);
CreateEmptyTable();
}
// We override this to find out if the table is full BEFORE the control is created.
protected override IComponent[] CreateToolCore(ToolboxItem tool, int x, int y, int width, int height, bool hasLocation, bool hasSize) {
rowCountBeforeAdd = Math.Max(0,Table.GetRowHeights().Length); // don't want negative
colCountBeforeAdd = Math.Max(0,Table.GetColumnWidths().Length);
return base.CreateToolCore(tool, x, y, width, height, hasLocation, hasSize);
}
///
/// When a new child is added - we check to see if we have cached a cell pos.
/// If so, we'll re-insert the control at this new position.
///
private void OnControlAdded(object sender, ControlEventArgs e) {
if (IsLoading || Undoing) {
return;
}
// Calculate the number cells spanned by controls in the Table
// This can be slow, but it is the only way to really calculate the number of cells spanned.
// We cannot rely on checking the control's span since the TLP's growstyle might affect it.
// E.g. RowCount = ColumnCount = 2, GrowStyle = AddRows, button in cell(0,0), button.ColumnSpan = 6
int totalArea = 0;
int[] rows = Table.GetRowHeights();
int[] columns = Table.GetColumnWidths();
for (int row = 0; row < rows.Length; row++) {
for (int column = 0; column < columns.Length; column++) {
if (Table.GetControlFromPosition(column, row) != null) {
++totalArea;
}
}
}
//The control we are about to place, have already been added to the TLP's control collection, so -1 here.
//This is because we want to know if the table was full BEFORE the control was added.
bool fullTable = (totalArea - 1) >= (Math.Max(1, colCountBeforeAdd) * Math.Max(1, rowCountBeforeAdd));
if (droppedCellPosition == InvalidPoint) {
droppedCellPosition = GetControlPosition(e.Control);
}
Debug.Assert(fullTable || (droppedCellPosition != InvalidPoint), "Why is neither fullTable or droppedCellPosition set?");
ControlAddedInternal(e.Control, droppedCellPosition, false, fullTable, null);
droppedCellPosition = InvalidPoint;
}
private void OnControlRemoved(object sender, ControlEventArgs e) {
// Need to do this to make sure undo/redo works
// Since the Row/Col extended property is DesignerSerializationVisibility.Hidden, the undo engine
// will not serialize the value out, so we need to reset it here. VSWhidbey #392705.
if (e != null && e.Control != null) {
Table.SetCellPosition(e.Control, new TableLayoutPanelCellPosition(-1, -1));
}
}
private bool IsOverValidCell() {
Point dropPoint = GetCellPosition(Control.MousePosition);
Control existingControl = (Control)((TableLayoutPanel)Control).GetControlFromPosition(dropPoint.X, dropPoint.Y);
//If the cell is not empty, and we are not doing a local drag, then show the no-smoking cursor
//or if we are doing a multi-select local drag, then show the no-smoking cursor.
//or if we are doig a local drag, and the cell is not empty, and we are doing a copy
if ((existingControl != null && localDragControl == null) ||
(localDragControl != null && dragComps.Count > 1) ||
(localDragControl != null && existingControl != null && Control.ModifierKeys == Keys.Control)) {
return false;
}
return true;
}
protected override void OnContextMenu(int x, int y)
{
Point cell = GetCellPosition(new Point(x,y));
curRow = cell.Y;
curCol = cell.X;
//Set the SizeMode correctly
EnsureAvailableStyles();
DesignerContextMenuStrip.Show(x, y);
}
///
/// Fired when we get a drag enter - here, we'll check it out
/// to see if we're dragging one of our child controls.
///
protected override void OnDragEnter(DragEventArgs de) {
base.OnDragEnter(de);
//peak at what just entered her e- it it's a local control
//we'll cache it off
if (localDragControl == null) {
Control dragControl = ExtractControlFromDragEvent(de);
if (dragControl != null && Table.Controls.Contains(dragControl)) {
localDragControl = dragControl;
}
}
}
///
/// Called when a drag-drop operation leaves the control designer view
///
///
protected override void OnDragLeave(EventArgs e) {
localDragControl = null; //VSWhidbey #275678
dragComps = null;
base.OnDragLeave(e);
}
///
/// When a control is dropped we first determine which cell is related to the
/// drop position. After this, if the control that was dropped is an existing
/// child control of our Table - we remove and add it back at its new
/// position. Otherwise, we'll do this in the OnChildAdded event.
///
protected override void OnDragDrop(DragEventArgs de) {
droppedCellPosition = GetCellPosition(Control.MousePosition);
//the scenario where we just dropped our own child control
if (localDragControl != null) {
//local drag to our TLP - we need to re-insert or swap it...
ControlAddedInternal(localDragControl, droppedCellPosition, true, false, de);
localDragControl = null;
}
else {
rowCountBeforeAdd = Math.Max(0,Table.GetRowHeights().Length); // don't want negative
colCountBeforeAdd = Math.Max(0,Table.GetColumnWidths().Length);
//If from the outside, just let the base class handle it
base.OnDragDrop(de);
// VSWhidbey #390230
// Devdiv Bugs 40804
// This will not fix VSWhidbey #390230 in the copy/paste scenario but it will for the
// main drag/drop scneario.
// We need to do this after the controls are added (after base.OnDragDrop above)
// dragComps is null when dragging off the toolbox
if (dragComps != null)
{
foreach (Control dragControl in dragComps)
{
if (dragControl != null)
{
PropertyDescriptor columnSpan = TypeDescriptor.GetProperties(dragControl)["ColumnSpan"];
PropertyDescriptor rowSpan = TypeDescriptor.GetProperties(dragControl)["RowSpan"];
if (columnSpan != null)
{
columnSpan.SetValue(dragControl, 1);
}
if (rowSpan != null)
{
rowSpan.SetValue(dragControl, 1);
}
}
}
}
}
droppedCellPosition = InvalidPoint;
dragComps = null;
}
///
/// If our table is full on drag enter -then we should not allow any
/// drop operations on our surface.
///
protected override void OnDragOver(DragEventArgs de) {
// If we are not over a valid cell, then do not allow the drop
if (!IsOverValidCell()) {
de.Effect = DragDropEffects.None;
return;
}
base.OnDragOver(de);
}
private Dictionary extenderProperties = null;
private Dictionary ExtenderProperties {
get {
if (extenderProperties == null && Component != null) {
extenderProperties = new Dictionary();
AttributeCollection attribs = TypeDescriptor.GetAttributes(Component.GetType());
foreach (Attribute a in attribs) {
ProvidePropertyAttribute extender = a as ProvidePropertyAttribute;
if (extender != null) {
extenderProperties[extender.PropertyName] = true;
}
}
}
return extenderProperties;
}
}
///
/// Checks if the given memberdescriptor represents an extender property offered
/// by the TLP that affects layout and is not normally serialized (Row, Column, etc.)
/// The UndoEngine will ignore these properties, so we need to force seralization.
///
private bool DoesPropertyAffectPosition(MemberDescriptor member) {
bool affectsPosition = false;
DesignerSerializationVisibilityAttribute dsv = member.Attributes[typeof(DesignerSerializationVisibilityAttribute)] as DesignerSerializationVisibilityAttribute;
if (dsv != null) {
affectsPosition = dsv.Visibility == DesignerSerializationVisibility.Hidden && ExtenderProperties.ContainsKey(member.Name);
}
return affectsPosition;
}
private void OnComponentChanging(object sender, ComponentChangingEventArgs e) {
Control changingControl = e.Component as Control;
if (changingControl != null && changingControl.Parent == this.Component &&
e.Member != null && DoesPropertyAffectPosition(e.Member)) {
PropertyDescriptor controlsProp = TypeDescriptor.GetProperties(Component)["Controls"];
compSvc.OnComponentChanging(Component, controlsProp);
}
}
private void OnComponentChanged(object sender, ComponentChangedEventArgs e) {
//VSWhidbey 233871
//
//When the Row or Column property is being set on a control in the TLP, a Row/Col Style is not being added.
//After the property is being set, the SelectionManager::OnSelectionChanged gets called. It in turn calls
//GetGlyphs, and the TLP designer's GetGlyphs calls EnsureAvaiableStyles. Since no style was added, we will add
//a default one of type Absolute, Height/Width 20. But but but... If the control has added its glyph before we
//add the style, the glyphs wil be misaligned, since EnsureAvailableStyles also causes the TLP to do a layout. This
//layout will actually size the control to a smaller size. So let's trap the Row/Col property changing, call
//EnsureAvailableStyles, which will force the layout BEFORE the SelectionManager is called.
if (e.Component != null) {
Control c = e.Component as Control;
if (c != null && c.Parent != null && c.Parent.Equals(Control) && e.Member != null && (e.Member.Name == "Row" || e.Member.Name == "Column")) {
EnsureAvailableStyles();
}
if (c != null && c.Parent == this.Component &&
e.Member != null && DoesPropertyAffectPosition(e.Member)) {
PropertyDescriptor controlsProp = TypeDescriptor.GetProperties(Component)["Controls"];
compSvc.OnComponentChanged(Component, controlsProp, null, null);
}
}
CheckVerbStatus();
}
///
/// Called when a designer transaction is closing (finishing). We sync this
/// so that we can refresh our tablelayoutpanel control. Calling suspend and
/// resume layout here will essentially invoke the internal 'onlayout' method
/// on our control to force proper layout.
///
private void OnTransactionClosing(object sender, DesignerTransactionCloseEventArgs e) {
ISelectionService selSvc = GetService(typeof(ISelectionService)) as ISelectionService;
if (selSvc != null && Table != null) {
ICollection selectedComps = selSvc.GetSelectedComponents();
bool selectedComponentHasTableParent = false;
foreach (object comp in selectedComps) {
Control c = comp as Control;
if (c != null && c.Parent == Table) {
selectedComponentHasTableParent = true;
break;
}
}
if (selSvc.GetComponentSelected(Table) || selectedComponentHasTableParent) {
//force an internal 'onlayout' event to refresh our control
Table.SuspendLayout();
EnsureAvailableStyles();
Table.ResumeLayout(false);
Table.PerformLayout();
}
}
}
///
/// Called before undo starts . We make sure to suspend designer
/// operations during undo.
///
private void OnUndoing(object sender, EventArgs e) {
if (!Undoing) {
if (undoEngine != null) {
undoEngine.Undone += new EventHandler(this.OnUndone);
}
Undoing = true;
}
}
///
/// Called when undo ends. We'll make sure to resume
/// unsink our Undone event and also refresh the designer.
///
private void OnUndone(object sender, EventArgs e) {
if (Undoing) {
if (undoEngine != null) {
undoEngine.Undone -= new EventHandler(this.OnUndone);
}
Undoing = false;
bool isSafeToRefresh = EnsureAvailableStyles();
if (isSafeToRefresh) {
Refresh();
}
}
}
///
/// If the user has drawn a rectangle with a toolbox item,
/// we'll cache off the cell in which it happened so we can
/// add it @ the right location in the event OnChildAdded.
///
protected override void OnMouseDragBegin(int x, int y) {
if (IsOverValidCell()) {
//make sure we have a valid toolbox item and we're not just drawing a rect
IToolboxService tbx = (IToolboxService)GetService(typeof(IToolboxService));
if (tbx != null && tbx.GetSelectedToolboxItem((IDesignerHost)GetService(typeof(IDesignerHost))) != null) {
droppedCellPosition = GetCellPosition(Control.MousePosition);
}
}
else {
droppedCellPosition = InvalidPoint;
Cursor.Current = Cursors.No;
}
base.OnMouseDragBegin(x, y);
}
protected override void OnMouseDragMove(int x, int y) {
//If they are trying to draw in a cell that already has a control, then we
//do not want to draw an outline
if (droppedCellPosition == InvalidPoint) {
Cursor.Current = Cursors.No;
return;
}
base.OnMouseDragMove(x, y);
}
///
/// If the user has drawn a rectangle with a toolbox item,
/// we'll cache off the cell in which it happened so we can
/// add it @ the right location in the event OnChildAdded.
///
protected override void OnMouseDragEnd(bool cancel) {
if (droppedCellPosition == InvalidPoint) {
// If they are trying to draw in a cell that already has a control, then just act like a cancel
cancel = true;
}
base.OnMouseDragEnd(cancel);
}
private void OnRowColMenuOpening(object sender, CancelEventArgs e) {
e.Cancel = false;
//Set the size mode correctly
ToolStripDropDownMenu menu = sender as ToolStripDropDownMenu;
if (menu != null) {
int selCount = 0;
ISelectionService selSvc = GetService(typeof(ISelectionService)) as ISelectionService;
if (selSvc != null) {
selCount = selSvc.SelectionCount;
}
// Always make sure and set the Enabled state in case the user
// has changed the selection since the last time the menu was shown.
bool enabled = (selCount == 1) && (InheritanceAttribute != InheritanceAttribute.InheritedReadOnly);
menu.Items["add"].Enabled = enabled;
menu.Items["insert"].Enabled = enabled;
menu.Items["delete"].Enabled = enabled;
menu.Items["sizemode"].Enabled = enabled;
menu.Items["absolute"].Enabled = enabled;
menu.Items["percent"].Enabled = enabled;
menu.Items["autosize"].Enabled = enabled;
if (selCount == 1) {
((ToolStripMenuItem)menu.Items["absolute"]).Checked = false;
((ToolStripMenuItem)menu.Items["percent"]).Checked = false;
((ToolStripMenuItem)menu.Items["autosize"]).Checked = false;
bool isRow = (bool)menu.Tag;
switch (isRow ? Table.RowStyles[curRow].SizeType : Table.ColumnStyles[curCol].SizeType) {
case SizeType.Absolute:
((ToolStripMenuItem)menu.Items["absolute"]).Checked = true;
break;
case SizeType.Percent:
((ToolStripMenuItem)menu.Items["percent"]).Checked = true;
break;
case SizeType.AutoSize:
((ToolStripMenuItem)menu.Items["autosize"]).Checked = true;
break;
default:
Debug.Fail("Unknown SizeType!");
break;
}
if ((isRow ? Table.RowCount : Table.ColumnCount) < 2) {
//can't remove a row/column if we only have
menu.Items["delete"].Enabled = false;
}
}
}
}
///
/// Adds a row/col to the end of the table
///
private void OnAdd(bool isRow) {
// get the property and add to it...
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null && Table.Site != null) {
using(DesignerTransaction t = host.CreateTransaction(SR.GetString(isRow ? SR.TableLayoutPanelDesignerAddRowUndoUnit :
SR.TableLayoutPanelDesignerAddColumnUndoUnit, Table.Site.Name))) {
try {
Table.SuspendLayout(); // To avoid flickering
// This ensures that the Row/Col Style gets set BEFORE the row is added. This in turn
// ensures that the row/col shows up. Since we turn off tablelayout, a style won't have been added
// when EnsureVisibleStyles is called from the shadowed property.
InsertRowCol(isRow, isRow ? Table.RowCount : Table.ColumnCount);
Table.ResumeLayout();
t.Commit();
}
catch (CheckoutException checkoutException) {
if (CheckoutException.Canceled.Equals(checkoutException)) {
if (t != null) {
t.Cancel();
}
}
else {
throw;
}
}
}
}
}
///
/// Adds a row/col to the end of the table
///
private void OnAddClick(object sender, EventArgs e) {
//Tag = isRow
OnAdd((bool)((ToolStripMenuItem)sender).Tag);
}
///
/// Adds an row or column at the specified index.
/// This method is also used by the StyleCollectionEditor, so any transaction must
/// be managed by the caller.
///
internal void InsertRowCol(bool isRow, int index) {
// We shadow the ColumnCount/RowCount property, so let's add the style first
// to make sure that the right style is added at the right location.
try {
if (isRow) {
PropertyDescriptor rowProp = TypeDescriptor.GetProperties(Table)["RowCount"];
if (rowProp != null) {
PropChanging(rowStyleProp);
Table.RowStyles.Insert(index, new RowStyle(SizeType.Absolute, DesignerUtils.MINIMUMSTYLESIZE));
PropChanged(rowStyleProp);
rowProp.SetValue(Table, Table.RowCount + 1);
}
}
else {
PropertyDescriptor colProp = TypeDescriptor.GetProperties(Table)["ColumnCount"];
if (colProp != null) {
PropChanging(colStyleProp);
Table.ColumnStyles.Insert(index, new ColumnStyle(SizeType.Absolute, DesignerUtils.MINIMUMSTYLESIZE));
PropChanged(colStyleProp);
colProp.SetValue(Table, Table.ColumnCount + 1);
}
}
}
catch (System.InvalidOperationException ex) {
IUIService uiService = (IUIService) GetService(typeof(IUIService));
uiService.ShowError(ex.Message);
}
// VSWhidbey # 490635
BehaviorService.Invalidate(BehaviorService.ControlRectInAdornerWindow(Control));
}
///
/// When we insert a row/col, we need to fix up any control that spans into the selected row/col to include the newly inserted row/col.
/// We also need to move controls after the original row/col into the new row/col.
/// index is the index of the row/col we just inserted
/// Also used by the StyleCollectionEditor
///
internal void FixUpControlsOnInsert(bool isRow, int index) {
PropertyDescriptor childProp = TypeDescriptor.GetProperties(Table)["Controls"];
PropChanging(childProp);
foreach (Control child in Table.Controls) {
int currentIndex = isRow ? Table.GetRow(child) : Table.GetColumn(child);
PropertyDescriptor prop = TypeDescriptor.GetProperties(child)[isRow ? "Row" : "Column"];
PropertyDescriptor spanProp = TypeDescriptor.GetProperties(child)[isRow ? "RowSpan" : "ColumnSpan"];
if (currentIndex == -1) {
//this is a flow element. We don't really know where
//this is going to go, so we cannot fix up anything.
continue;
}
//push all controls >= the original row/col into the new row/col
if (currentIndex >= index) {
if (prop != null) {
prop.SetValue(child, currentIndex + 1);
}
}
else {
//If the control is before the row/col we are inserting and the control has a span that includes the inserted row/col
//the increase the span to include the insert row/col
int span = isRow ? Table.GetRowSpan(child) : Table.GetColumnSpan(child); //span is always at least 1
if (currentIndex + span > index) {
if (spanProp != null) {
spanProp.SetValue(child, span + 1);
}
}
}
}
PropChanged(childProp);
}
private void OnInsertClick(object sender, EventArgs e) {
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null && Table.Site != null) {
bool isRow = (bool)((ToolStripMenuItem)sender).Tag;
using(DesignerTransaction t = host.CreateTransaction(SR.GetString(isRow ? SR.TableLayoutPanelDesignerAddRowUndoUnit :
SR.TableLayoutPanelDesignerAddColumnUndoUnit, Table.Site.Name))) {
try {
Table.SuspendLayout();
InsertRowCol(isRow, isRow ? curRow : curCol);
FixUpControlsOnInsert(isRow, isRow ? curRow : curCol);
Table.ResumeLayout();
t.Commit();
}
catch (CheckoutException checkoutException) {
if (CheckoutException.Canceled.Equals(checkoutException)) {
if (t != null) {
t.Cancel();
}
}
else {
throw;
}
}
catch (System.InvalidOperationException ex) {
IUIService uiService = (IUIService) GetService(typeof(IUIService));
uiService.ShowError(ex.Message);
}
}
}
}
///
/// When we remove a row/col, we need to fix up any control that spans into the selected row/col.
/// We also need to adjust controls after the original row/col.
/// index is the index of the row/col we are about to delete
///
/// deleteList will hold a list of controls, which has the same index as the row/col, we are
/// deleting. They are actually not deleted in this method because the method is also called,
/// by the StyleCollectionEditor which does not want to delete controls right away.
///
internal void FixUpControlsOnDelete(bool isRow, int index, ArrayList deleteList) {
PropertyDescriptor childProp = TypeDescriptor.GetProperties(Table)["Controls"];
PropChanging(childProp);
foreach (Control child in Table.Controls) {
int currentIndex = isRow ? Table.GetRow(child) : Table.GetColumn(child);
PropertyDescriptor prop = TypeDescriptor.GetProperties(child)[isRow ? "Row" : "Column"];
PropertyDescriptor spanProp = TypeDescriptor.GetProperties(child)[isRow ? "RowSpan" : "ColumnSpan"];
if (currentIndex == index) {
//We add the deleteList.Contains check just to make extra sure. Could be
//that the deleteList for some reason already contained the child.
if (!deleteList.Contains(child)) {
deleteList.Add(child);
}
continue;
}
if (currentIndex == -1 || deleteList.Contains(child)) {
//If this is a flow element. We don't really know where this is going to go, so we cannot fix up anything.
//If the child has already been marked for deletion, we can keep going
continue;
}
Debug.Assert(currentIndex != index);
//push all controls >= the original row/col into the new row/col, but only
if (currentIndex > index) {
if (prop != null) {
prop.SetValue(child, currentIndex - 1);
}
}
else {
//If the control is before the row/col we are removing and the control has a span that includes the row/col
//we are deleting, then decrease the span.
int span = isRow ? Table.GetRowSpan(child) : Table.GetColumnSpan(child); //span is always at least 1
if (currentIndex + span > index) {
if (spanProp != null) {
//We've bled into the row/col, shrink up as expected
spanProp.SetValue(child, span - 1);
}
}
}
}
PropChanged(childProp);
}
// Also used by the StyleCollectionEditor
internal void DeleteRowCol(bool isRow, int index) {
if (isRow) {
PropertyDescriptor rowProp = TypeDescriptor.GetProperties(Table)["RowCount"];
if (rowProp != null) {
rowProp.SetValue(Table, Table.RowCount - 1);
PropChanging(rowStyleProp);
Table.RowStyles.RemoveAt(index);
PropChanged(rowStyleProp);
}
}
else {
PropertyDescriptor colProp = TypeDescriptor.GetProperties(Table)["ColumnCount"];
if (colProp != null) {
colProp.SetValue(Table, Table.ColumnCount - 1);
PropChanging(colStyleProp);
Table.ColumnStyles.RemoveAt(index);
PropChanged(colStyleProp);
}
}
}
private void OnRemoveInternal(bool isRow, int index) {
if ((isRow ? Table.RowCount : Table.ColumnCount) < 2) {
//can't remove a row/column if we only have 1
return;
}
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null && Table.Site != null) {
using(DesignerTransaction t = host.CreateTransaction(SR.GetString(isRow ? SR.TableLayoutPanelDesignerRemoveRowUndoUnit :
SR.TableLayoutPanelDesignerRemoveColumnUndoUnit, Table.Site.Name))) {
try {
Table.SuspendLayout();
ArrayList deleteList = new ArrayList();
//First fix up any controls in the row/col we are deleting
FixUpControlsOnDelete(isRow, index, deleteList);
//Then delete the row col
DeleteRowCol(isRow, index);
//Now delete any child control
// IF YOU CHANGE THIS, YOU SHOULD ALSO CHANGE THE CODE IN StyleCollectionEditor.OnOkButtonClick
if (deleteList.Count > 0) {
PropertyDescriptor childProp = TypeDescriptor.GetProperties(Table)["Controls"];
PropChanging(childProp);
foreach (object o in deleteList) {
ArrayList al = new ArrayList();
DesignerUtils.GetAssociatedComponents((IComponent)o, host, al);
foreach (IComponent comp in al) {
compSvc.OnComponentChanging(comp, null);
}
host.DestroyComponent(o as Component);
}
PropChanged(childProp);
}
Table.ResumeLayout();
t.Commit();
}
catch (CheckoutException checkoutException) {
if (CheckoutException.Canceled.Equals(checkoutException)) {
if (t != null) {
t.Cancel();
}
}
else {
throw;
}
}
}
}
}
///
/// Always removes the last row/col
///
private void OnRemove(bool isRow) {
OnRemoveInternal(isRow, isRow ? Table.RowCount - 1 : Table.ColumnCount - 1);
}
///
/// Removes a rol/col at a specific index.
///
private void OnDeleteClick(object sender, EventArgs e) {
try {
bool isRow = (bool)((ToolStripMenuItem)sender).Tag;
OnRemoveInternal(isRow, isRow ? curRow : curCol);
}
catch (System.InvalidOperationException ex) {
IUIService uiService = (IUIService) GetService(typeof(IUIService));
uiService.ShowError(ex.Message);
}
}
private void ChangeSizeType(bool isRow, SizeType newType) {
TableLayoutStyleCollection styles = null;
try {
if (isRow) {
styles = Table.RowStyles;
}
else {
styles = Table.ColumnStyles;
}
int index = isRow ? curRow : curCol;
if (styles[index].SizeType == newType) {
// nuthin' to do
return;
}
int[] rh = Table.GetRowHeights();
int[] ch = Table.GetColumnWidths();
if ((isRow && rh.Length < index - 1) || (!isRow && ch.Length < index - 1)) {
//something got messed up
Debug.Fail("Our indices are outta whack, how did that happen?");
return;
}
IDesignerHost host = GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null && Table.Site != null) {
using (DesignerTransaction t = host.CreateTransaction(SR.GetString(SR.TableLayoutPanelDesignerChangeSizeTypeUndoUnit, Table.Site.Name))) {
try {
Table.SuspendLayout();
PropChanging(isRow ? rowStyleProp : colStyleProp);
switch (newType) {
case SizeType.Absolute:
styles[index].SizeType = SizeType.Absolute;
if (isRow) {
Table.RowStyles[index].Height = rh[index];
}
else {
Table.ColumnStyles[index].Width = ch[index];
}
break;
case SizeType.Percent:
styles[index].SizeType = SizeType.Percent;
if (isRow) {
Table.RowStyles[index].Height = DesignerUtils.MINIMUMSTYLEPERCENT;
}
else {
Table.ColumnStyles[index].Width = DesignerUtils.MINIMUMSTYLEPERCENT;
}
break;
case SizeType.AutoSize:
styles[index].SizeType = SizeType.AutoSize;
break;
default:
Debug.Fail("Unknown SizeType!");
break;
}
PropChanged(isRow ? rowStyleProp : colStyleProp);
Table.ResumeLayout();
t.Commit();
}
catch (CheckoutException checkoutException) {
if (CheckoutException.Canceled.Equals(checkoutException)) {
if (t != null) {
t.Cancel();
}
}
else {
throw;
}
}
}
}
}
catch (System.InvalidOperationException ex) {
IUIService uiService = (IUIService)GetService(typeof(IUIService));
uiService.ShowError(ex.Message);
}
}
private void OnAbsoluteClick(object sender, EventArgs e) {
ChangeSizeType((bool)((ToolStripMenuItem)sender).Tag, SizeType.Absolute);
}
private void OnPercentClick(object sender, EventArgs e) {
ChangeSizeType((bool)((ToolStripMenuItem)sender).Tag, SizeType.Percent);
}
private void OnAutoSizeClick(object sender, EventArgs e) {
ChangeSizeType((bool)((ToolStripMenuItem)sender).Tag, SizeType.AutoSize);
}
private void OnEdit() {
try
{
EditorServiceContext.EditValue(this, Table, "ColumnStyles");
}
catch (System.InvalidOperationException ex) {
IUIService uiService = (IUIService) GetService(typeof(IUIService));
uiService.ShowError(ex.Message);
}
}
///
/// This is our callback for designer verbs: remove row and remove column.
/// All we do here is increment or decrememnt out col/row count.
///
private void OnVerbRemove(object sender, EventArgs e) {
//sniff the text of the verb to see if we're adding columns or rows
bool isRow = ((DesignerVerb)sender).Text.Equals(SR.GetString(SR.TableLayoutPanelDesignerRemoveRow));
OnRemove(isRow);
}
///
/// This is our callback for designer verbs: add row and add column.
///
private void OnVerbAdd(object sender, EventArgs e) {
//sniff the text of the verb to see if we're adding columns or rows
bool isRow = ((DesignerVerb)sender).Text.Equals(SR.GetString(SR.TableLayoutPanelDesignerAddRow));
OnAdd(isRow);
}
private void OnVerbEdit(object sender, EventArgs e) {
OnEdit();
}
///
///
protected override void PreFilterProperties(IDictionary properties) {
base.PreFilterProperties(properties);
// Handle shadowed properties
string[] shadowProps = new string[] {
"ColumnStyles",
"RowStyles",
"ColumnCount",
"RowCount"
};
// VSWhidbey 491088
// To enable the PropertyGrid to work with the TableLayoutPanel at runtime (when no designer is available),
// the above properties are marked browsable(false) and re-enabled when a designer is present.
// Since so much of the logic for keeping the TLP in a valid Row/Column state is designer dependent,
// these properties are not accessible by the PropertyGrid without a designer.
Attribute[] attribs = new Attribute[] { new BrowsableAttribute(true) };
for (int i = 0; i < shadowProps.Length; i++) {
PropertyDescriptor prop = (PropertyDescriptor)properties[shadowProps[i]];
if (prop != null) {
properties[shadowProps[i]] = TypeDescriptor.CreateProperty(typeof(TableLayoutPanelDesigner), prop, attribs);
}
}
// replace this one seperately because it is of a different type (DesignerTableLayoutControlCollection) than
// the original property (TableLayoutControlCollection)
//
PropertyDescriptor controlsProp = (PropertyDescriptor)properties["Controls"];
if (controlsProp != null) {
Attribute[] attrs = new Attribute[controlsProp.Attributes.Count];
controlsProp.Attributes.CopyTo(attrs, 0);
properties["Controls"] = TypeDescriptor.CreateProperty(typeof(TableLayoutPanelDesigner), "Controls", typeof(DesignerTableLayoutControlCollection), attrs);
}
}
///
/// Called after we modify the table - sync the selection and repaint.
///
private void Refresh() {
//refresh selection, glyphs, and adorners
BehaviorService.SyncSelection();
if (Table != null) {
Table.Invalidate(true);
}
}
private void PropChanging(PropertyDescriptor prop) {
if (compSvc != null && prop != null) {
compSvc.OnComponentChanging(Table, prop);
}
}
private void PropChanged(PropertyDescriptor prop) {
if (compSvc != null && prop != null) {
compSvc.OnComponentChanged(Table, prop, null, null);
}
}
[ListBindable(false)]
[DesignerSerializer(typeof(DesignerTableLayoutControlCollectionCodeDomSerializer), typeof(CodeDomSerializer))]
internal class DesignerTableLayoutControlCollection : TableLayoutControlCollection, IList {
TableLayoutControlCollection realCollection;
public DesignerTableLayoutControlCollection(TableLayoutPanel owner) : base(owner) {
this.realCollection = owner.Controls;
}
///
/// Retrieves the number of child controls.
///
public override int Count {
get {
return realCollection.Count;
}
}
///
/// [To be supplied.]
///
public new bool IsReadOnly {
get {
return realCollection.IsReadOnly;
}
}
///
/// [To be supplied.]
///
public override void AddRange(Control[] controls) {
realCollection.AddRange(controls);
}
///
/// [To be supplied.]
///
public override void Clear() {
// only remove the sited non-inherited components
//
for (int i = realCollection.Count - 1; i >= 0; i--) {
if (realCollection[i] != null &&
realCollection[i].Site != null &&
TypeDescriptor.GetAttributes(realCollection[i]).Contains(InheritanceAttribute.NotInherited)) {
realCollection.RemoveAt(i);
}
}
}
}
// Custom code dom serializer for the DesignerControlCollection. We need this so we can filter out controls
// that aren't sited in the host's container.
internal class DesignerTableLayoutControlCollectionCodeDomSerializer : TableLayoutControlCollectionCodeDomSerializer {
protected override object SerializeCollection(IDesignerSerializationManager manager, CodeExpression targetExpression, Type targetType, ICollection originalCollection, ICollection valuesToSerialize) {
ArrayList subset = new ArrayList();
if (valuesToSerialize != null && valuesToSerialize.Count > 0) {
foreach (object val in valuesToSerialize) {
IComponent comp = val as IComponent;
if (comp != null && comp.Site != null && !(comp.Site is INestedSite)) {
subset.Add(comp);
}
}
}
return base.SerializeCollection(manager, targetExpression, targetType, originalCollection, subset);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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