diff options
Diffstat (limited to 'mcs/class/Managed.Windows.Forms/System.Windows.Forms/MdiClient.cs')
| -rw-r--r-- | mcs/class/Managed.Windows.Forms/System.Windows.Forms/MdiClient.cs | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/MdiClient.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/MdiClient.cs new file mode 100644 index 00000000000..f036219b53a --- /dev/null +++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/MdiClient.cs @@ -0,0 +1,410 @@ +// 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) 2005 Novell, Inc. (http://www.novell.com) +// +// Authors: +// Peter Bartok pbartok@novell.com +// +// + +// NOT COMPLETE + +using System.Collections; +using System.ComponentModel; +using System.Drawing; + +namespace System.Windows.Forms { + [DesignTimeVisible(false)] + [ToolboxItem(false)] + public sealed class MdiClient : Control { + #region Local Variables + private int mdi_created; + private Form active; + private HScrollBar hbar; + private VScrollBar vbar; + private SizeGrip sizegrip; + private int hbar_value; + private int vbar_value; + private bool lock_sizing; + + #endregion // Local Variables + + #region Public Classes + public new class ControlCollection : Control.ControlCollection { + MdiClient owner; + + public ControlCollection(MdiClient owner) : base(owner) { + this.owner = owner; + controls = new ArrayList (); + } + + public override void Add(Control value) { + if ((value is Form) == false || !(((Form)value).IsMdiChild)) { + throw new ArgumentException("Form must be MdiChild"); + } + base.Add (value); + SetChildIndex (value, 0); // always insert at front + // newest member is the active one + owner.ActiveMdiChild = (Form) value; + + value.LocationChanged += new EventHandler (owner.FormLocationChanged); + } + + public override void Remove(Control value) { + base.Remove (value); + } + } + #endregion // Public Classes + + #region Public Constructors + public MdiClient() { + BackColor = SystemColors.AppWorkspace; + Dock = DockStyle.Fill; + SetStyle (ControlStyles.Selectable, false); + } + #endregion // Public Constructors + + protected override Control.ControlCollection CreateControlsInstance () + { + return new MdiClient.ControlCollection (this); + } + + protected override void WndProc(ref Message m) { + /* + switch ((Msg) m.Msg) { + case Msg.WM_PAINT: { + Console.WriteLine ("ignoring paint"); + return; + } + } + */ + base.WndProc (ref m); + } + + protected override void OnResize (EventArgs e) + { + base.OnResize (e); + + // Should probably make this into one loop + SizeScrollBars (); + SizeMaximized (); + } + + protected override void ScaleCore (float dx, float dy) + { + base.ScaleCore (dx, dy); + } + + protected override void SetBoundsCore (int x, int y, int width, int height, BoundsSpecified specified) + { + base.SetBoundsCore (x, y, width, height, specified); + } + + #region Public Instance Properties + [Localizable(true)] + public override System.Drawing.Image BackgroundImage { + get { + return base.BackgroundImage; + } + set { + base.BackgroundImage = value; + } + } + + public Form[] MdiChildren { + get { + Form[] children; + + children = new Form[Controls.Count]; + Controls.CopyTo(children, 0); + + return children; + } + } + #endregion // Public Instance Properties + +#region Protected Instance Properties + protected override CreateParams CreateParams { + get { + return base.CreateParams; + } + } + #endregion // Protected Instance Properties + + #region Public Instance Methods + public void LayoutMdi(MdiLayout value) { + throw new NotImplementedException(); + } + #endregion // Public Instance Methods + + #region Protected Instance Methods + #endregion // Protected Instance Methods + + private void SizeScrollBars () + { + if (lock_sizing) + return; + + if (Controls.Count == 0 || ((Form) Controls [0]).WindowState == FormWindowState.Maximized) { + if (hbar != null) + hbar.Visible = false; + if (vbar != null) + vbar.Visible = false; + return; + } + + bool hbar_required = false; + bool vbar_required = false; + + int right = 0; + int left = 0; + foreach (Form child in Controls) { + if (!child.Visible) + continue; + if (child.Right > right) + right = child.Right; + if (child.Left < left) { + hbar_required = true; + left = child.Left; + } + } + + int top = 0; + int bottom = 0; + foreach (Form child in Controls) { + if (!child.Visible) + continue; + if (child.Bottom > bottom) + bottom = child.Bottom; + if (child.Top < 0) { + vbar_required = true; + top = child.Top; + } + } + + int right_edge = Right; + int bottom_edge = Bottom; + int prev_right_edge; + int prev_bottom_edge; + + bool need_hbar = false; + bool need_vbar = false; + + do { + prev_right_edge = right_edge; + prev_bottom_edge = bottom_edge; + + if (hbar_required || right > right_edge) { + need_hbar = true; + bottom_edge = Bottom - SystemInformation.HorizontalScrollBarHeight; + } else { + need_hbar = false; + bottom_edge = Bottom; + } + + if (vbar_required || bottom > bottom_edge) { + need_vbar = true; + right_edge = Right - SystemInformation.VerticalScrollBarWidth; + } else { + need_vbar = false; + right_edge = Right; + } + + } while (right_edge != prev_right_edge || bottom_edge != prev_bottom_edge); + + if (need_hbar) { + if (hbar == null) { + hbar = new HScrollBar (); + Controls.AddImplicit (hbar); + } + hbar.Visible = true; + CalcHBar (left, right, right_edge, need_vbar); + } else if (hbar != null) + hbar.Visible = false; + + if (need_vbar) { + if (vbar == null) { + vbar = new VScrollBar (); + Controls.AddImplicit (vbar); + } + vbar.Visible = true; + CalcVBar (top, bottom, bottom_edge, need_hbar); + } else if (vbar != null) + vbar.Visible = false; + + if (need_hbar && need_vbar) { + if (sizegrip == null) { + sizegrip = new SizeGrip (); + Controls.AddImplicit (sizegrip); + } + sizegrip.Location = new Point (hbar.Right, vbar.Bottom); + sizegrip.Width = vbar.Width; + sizegrip.Height = hbar.Height; + sizegrip.Visible = true; + } else if (sizegrip != null) { + sizegrip.Visible = false; + } + } + + private void CalcHBar (int left, int right, int right_edge, bool vert_vis) + { + int virtual_left = Math.Min (left, 0); + int virtual_right = Math.Max (right, right_edge); + int diff = (virtual_right - virtual_left) - right_edge; + hbar.Left = 0; + hbar.Top = Height - hbar.Height; + hbar.Width = Width - (vert_vis ? SystemInformation.VerticalScrollBarWidth : 0); + hbar.LargeChange = 50; + hbar.Maximum = diff + 51; + hbar.Value = -virtual_left; + hbar.ValueChanged += new EventHandler (HBarValueChanged); + } + + private void CalcVBar (int top, int bottom, int bottom_edge, bool horz_vis) + { + int virtual_top = Math.Min (top, 0); + int virtual_bottom = Math.Max (bottom, bottom_edge); + int diff = (virtual_bottom - virtual_top) - bottom_edge; + vbar.Top = 0; + vbar.Left = Width - vbar.Width; + vbar.Height = Height - (horz_vis ? SystemInformation.HorizontalScrollBarHeight : 0); + vbar.LargeChange = 50; + vbar.Maximum = diff + 51; + vbar.Value = -virtual_top; + vbar.ValueChanged += new EventHandler (VBarValueChanged); + + } + + private void HBarValueChanged (object sender, EventArgs e) + { + if (hbar.Value == hbar_value) + return; + + lock_sizing = true; + + try { + foreach (Form child in Controls) { + child.Left += hbar_value - hbar.Value; + } + } finally { + lock_sizing = false; + } + + hbar_value = hbar.Value; + lock_sizing = false; + } + + private void VBarValueChanged (object sender, EventArgs e) + { + if (vbar.Value == vbar_value) + return; + + lock_sizing = true; + + try { + foreach (Form child in Controls) { + child.Top += vbar_value - vbar.Value; + } + } finally { + lock_sizing = false; + } + + vbar_value = vbar.Value; + lock_sizing = false; + } + + private void SizeMaximized () + { + foreach (Form child in Controls) { + if (!child.Visible) + continue; + MdiWindowManager wm = (MdiWindowManager) child.WindowManager; + if (wm.GetWindowState () == FormWindowState.Maximized) + wm.SizeMaximized (); + } + } + + private void FormLocationChanged (object sender, EventArgs e) + { + SizeScrollBars (); + } + + private int iconic_x = -1; + private int iconic_y = -1; + internal void ArrangeIconicWindows () + { + int xspacing = 160; + int yspacing = 25; + + if (iconic_x == -1 && iconic_y == -1) { + iconic_x = Left; + iconic_y = Bottom - yspacing; + } + + lock_sizing = true; + foreach (Form form in Controls) { + if (form.WindowState != FormWindowState.Minimized) + continue; + + MdiWindowManager wm = (MdiWindowManager) form.WindowManager; + + if (wm.IconicBounds != Rectangle.Empty) { + form.Bounds = wm.IconicBounds; + continue; + } + + // The extra one pixel is a cheap hack for now until we + // handle 0 client sizes properly in the driver + int height = wm.TitleBarHeight + (wm.BorderWidth * 2) + 1; + Rectangle rect = new Rectangle (iconic_x, iconic_y, xspacing, height); + form.Bounds = wm.IconicBounds = rect; + + iconic_x += xspacing; + if (iconic_x >= Right) { + iconic_x = Left; + iconic_y -= height; + } + } + lock_sizing = false; + } + + internal void ActivateChild (Form form) + { + form.BringToFront (); + active = form; + + foreach (Form child in Controls) { + if (child == form) + continue; + // TODO: We need to repaint the decorations here + } + } + + internal int ChildrenCreated { + get { return mdi_created; } + set { mdi_created = value; } + } + + internal Form ActiveMdiChild { + get { return active; } + set { active = value; } + } + } +} |