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// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2004 Novell, Inc.
//
// Authors:
// Peter Bartok pbartok@novell.com
//
//
// NOT COMPLETE
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
namespace System.Windows.Forms {
public class ContainerControl : ScrollableControl, IContainerControl {
private Control active_control;
private Control focused_control;
private Control unvalidated_control;
#if NET_2_0
private SizeF auto_scale_dimensions;
private AutoScaleMode auto_scale_mode;
#endif
#region Public Constructors
public ContainerControl() {
active_control = null;
focused_control = null;
unvalidated_control = null;
ControlRemoved += new ControlEventHandler(OnControlRemoved);
#if NET_2_0
auto_scale_dimensions = SizeF.Empty;
auto_scale_mode = AutoScaleMode.None;
#endif
}
#endregion // Public Constructors
#region Public Instance Properties
[Browsable (false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public Control ActiveControl {
get {
return active_control;
}
set {
if ((active_control==value) || (value==null)) {
return;
}
active_control = value;
if (!Contains(value) && this != value) {
throw new ArgumentException("Not a child control");
}
if (this is Form)
CheckAcceptButton();
// Scroll control into view
// Let the control know it's selected
Select(value);
}
}
#if NET_2_0
public SizeF AutoScaleDimensions {
get {
return auto_scale_dimensions;
}
set {
auto_scale_dimensions = value;
}
}
public SizeF AutoScaleFactor {
get {
if (auto_scale_dimensions.IsEmpty) {
return new SizeF(1f, 1f);
}
return new SizeF(CurrentAutoScaleDimensions.Width / auto_scale_dimensions.Width,
CurrentAutoScaleDimensions.Height / auto_scale_dimensions.Height);
}
}
[MonoTODO("Call scaling method")]
public virtual AutoScaleMode AutoScaleMode {
get {
return auto_scale_mode;
}
set {
if (auto_scale_mode != value) {
auto_scale_mode = value;
// Trigger scaling
}
}
}
#endif // NET_2_0
[Browsable (false)]
public override BindingContext BindingContext {
get {
if (base.BindingContext == null) {
base.BindingContext = new BindingContext();
}
return base.BindingContext;
}
set {
base.BindingContext = value;
}
}
#if NET_2_0
[MonoTODO("Revisit when System.Drawing.GDI.WindowsGraphics.GetTextMetrics is done or come up with other cross-plat avg. font width calc method")]
public SizeF CurrentAutoScaleDimensions {
get {
switch(auto_scale_mode) {
case AutoScaleMode.Dpi: {
Bitmap bmp;
Graphics g;
SizeF size;
bmp = new Bitmap(1, 1, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = Graphics.FromImage(bmp);
size = new SizeF(g.DpiX, g.DpiY);
g.Dispose();
bmp.Dispose();
return size;
}
case AutoScaleMode.Font: {
// http://msdn2.microsoft.com/en-us/library/system.windows.forms.containercontrol.currentautoscaledimensions(VS.80).aspx
// Implement System.Drawing.GDI.WindowsGraphics.GetTextMetrics first...
break;
}
}
return auto_scale_dimensions;
}
}
#endif
[Browsable (false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public Form ParentForm {
get {
Control parent;
parent = this.parent;
while (parent != null) {
if (parent is Form) {
return (Form)parent;
}
parent = parent.parent;
}
return null;
}
}
#endregion // Public Instance Properties
#region Protected Instance Methods
protected override CreateParams CreateParams {
get {
return base.CreateParams;
}
}
#endregion // Public Instance Methods
#region Public Instance Methods
[MonoTODO]
static bool ValidateWarned;
public bool Validate() {
//throw new NotImplementedException();
if (!ValidateWarned) {
Console.WriteLine("ContainerControl.Validate is not yet implemented");
ValidateWarned = true;
}
return true;
}
bool IContainerControl.ActivateControl(Control control) {
return Select(control);
}
#endregion // Public Instance Methods
#region Protected Instance Methods
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected override void AdjustFormScrollbars(bool displayScrollbars) {
base.AdjustFormScrollbars(displayScrollbars);
}
protected override void Dispose(bool disposing) {
base.Dispose(disposing);
}
// LAMESPEC This used to be documented, but it's not in code
// and no longer listed in MSDN2
// [EditorBrowsable (EditorBrowsableState.Advanced)]
// protected override void OnControlRemoved(ControlEventArgs e) {
private void OnControlRemoved(object sender, ControlEventArgs e) {
if (e.Control == this.unvalidated_control) {
this.unvalidated_control = null;
}
if (e.Control == this.active_control) {
this.unvalidated_control = null;
}
// base.OnControlRemoved(e);
}
protected override void OnCreateControl() {
base.OnCreateControl();
// MS seems to call this here, it gets the whole databinding process started
OnBindingContextChanged (EventArgs.Empty);
}
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected override bool ProcessDialogChar(char charCode) {
if (GetTopLevel()) {
if (ProcessMnemonic(charCode)) {
return true;
}
}
return base.ProcessDialogChar(charCode);
}
protected override bool ProcessDialogKey(Keys keyData) {
Keys key;
bool forward;
key = keyData & Keys.KeyCode;
forward = true;
switch (key) {
case Keys.Tab: {
if (ProcessTabKey((Control.ModifierKeys & Keys.Shift) == 0)) {
return true;
}
break;
}
case Keys.Left: {
forward = false;
goto case Keys.Down;
}
case Keys.Up: {
forward = false;
goto case Keys.Down;
}
case Keys.Right: {
goto case Keys.Down;
}
case Keys.Down: {
if (SelectNextControl(active_control, forward, false, false, true)) {
return true;
}
break;
}
}
return base.ProcessDialogKey(keyData);
}
protected override bool ProcessMnemonic(char charCode) {
bool wrapped;
Control c;
wrapped = false;
c = active_control;
do {
c = GetNextControl(c, true);
if (c != null) {
// This is stupid. I want to be able to call c.ProcessMnemonic directly
if (c.ProcessControlMnemonic(charCode)) {
return(true);
}
continue;
} else {
if (wrapped) {
break;
}
wrapped = true;
}
} while (c != active_control);
return false;
}
protected virtual bool ProcessTabKey(bool forward) {
return SelectNextControl(active_control, forward, true, true, true);
}
protected override void Select(bool directed, bool forward) {
base.Select(directed, forward);
}
protected virtual void UpdateDefaultButton() {
// MS Internal
}
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected override void WndProc(ref Message m) {
base.WndProc(ref m);
}
#endregion // Protected Instance Methods
internal virtual void CheckAcceptButton()
{
// do nothing here, only called if it is a Form
}
}
}
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