455 lines
17 KiB
C#
455 lines
17 KiB
C#
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// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// -----------------------------------------------------------------------------
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// Original code from SlimDX project.
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// Greetings to SlimDX Group. Original code published with the following license:
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// -----------------------------------------------------------------------------
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/*
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* Copyright (c) 2007-2011 SlimDX Group
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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using System.Diagnostics;
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using SharpDX.Mathematics.Interop;
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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.Windows.Forms;
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namespace SharpDX.Windows
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{
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/// <summary>
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/// Default Rendering Form.
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/// </summary>
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public class RenderForm : Form
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{
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private const int WM_SIZE = 0x0005;
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private const int SIZE_RESTORED = 0;
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private const int SIZE_MINIMIZED = 1;
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private const int SIZE_MAXIMIZED = 2;
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private const int SIZE_MAXSHOW = 3;
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private const int SIZE_MAXHIDE = 4;
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private const int WM_ACTIVATEAPP = 0x001C;
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private const int WM_POWERBROADCAST = 0x0218;
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private const int WM_MENUCHAR = 0x0120;
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private const int WM_SYSCOMMAND = 0x0112;
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private const uint PBT_APMRESUMESUSPEND = 7;
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private const uint PBT_APMQUERYSUSPEND = 0;
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private const int SC_MONITORPOWER = 0xF170;
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private const int SC_SCREENSAVE = 0xF140;
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private const int WM_DISPLAYCHANGE = 0x007E;
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private const int MNC_CLOSE = 1;
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private System.Drawing.Size cachedSize;
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private FormWindowState previousWindowState;
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//private DisplayMonitor monitor;
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private bool isUserResizing;
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private bool allowUserResizing;
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private bool isBackgroundFirstDraw;
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private bool isSizeChangedWithoutResizeBegin;
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/// <summary>
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/// Initializes a new instance of the <see cref="RenderForm"/> class.
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/// </summary>
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public RenderForm() : this("SharpDX")
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{
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="RenderForm"/> class.
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/// </summary>
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/// <param name="text">The text.</param>
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public RenderForm(String text)
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{
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Text = text;
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ClientSize = new System.Drawing.Size(800, 600);
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//MinimumSize = new System.Drawing.Size(200, 200);
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ResizeRedraw = true;
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SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);
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Icon = Desktop.Properties.Resources.logo;
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previousWindowState = FormWindowState.Normal;
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AllowUserResizing = true;
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}
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/// <summary>
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/// Occurs when [app activated].
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/// </summary>
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public event EventHandler<EventArgs> AppActivated;
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/// <summary>
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/// Occurs when [app deactivated].
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/// </summary>
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public event EventHandler<EventArgs> AppDeactivated;
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/// <summary>
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/// Occurs when [monitor changed].
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/// </summary>
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public event EventHandler<EventArgs> MonitorChanged;
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/// <summary>
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/// Occurs when [pause rendering].
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/// </summary>
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public event EventHandler<EventArgs> PauseRendering;
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/// <summary>
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/// Occurs when [resume rendering].
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/// </summary>
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public event EventHandler<EventArgs> ResumeRendering;
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/// <summary>
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/// Occurs when [screensaver].
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/// </summary>
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public event EventHandler<CancelEventArgs> Screensaver;
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/// <summary>
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/// Occurs when [system resume].
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/// </summary>
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public event EventHandler<EventArgs> SystemResume;
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/// <summary>
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/// Occurs when [system suspend].
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/// </summary>
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public event EventHandler<EventArgs> SystemSuspend;
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/// <summary>
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/// Occurs when [user resized].
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/// </summary>
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public event EventHandler<EventArgs> UserResized;
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/// <summary>
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/// Gets or sets a value indicating whether this form can be resized by the user. See remarks.
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/// </summary>
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/// <remarks>
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/// This property alters <see cref="Form.FormBorderStyle"/>,
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/// for <c>true</c> value it is <see cref="FormBorderStyle.Sizable"/>,
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/// for <c>false</c> - <see cref="FormBorderStyle.FixedSingle"/>.
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/// </remarks>
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/// <value><c>true</c> if this form can be resized by the user (by default); otherwise, <c>false</c>.</value>
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public bool AllowUserResizing
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{
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get
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{
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return allowUserResizing;
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}
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set
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{
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if (allowUserResizing != value)
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{
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allowUserResizing = value;
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MaximizeBox = allowUserResizing;
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FormBorderStyle = IsFullscreen
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? FormBorderStyle.None
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: allowUserResizing ? FormBorderStyle.Sizable : FormBorderStyle.FixedSingle;
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}
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}
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}
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/// <summary>
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/// Gets or sets a value indicationg whether the current render form is in fullscreen mode. See remarks.
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/// </summary>
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/// <remarks>
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/// If Toolkit is used, this property is set automatically,
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/// otherwise user should maintain it himself as it affects the behavior of <see cref="AllowUserResizing"/> property.
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/// </remarks>
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public bool IsFullscreen { get; set; }
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Form.ResizeBegin"/> event.
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/// </summary>
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/// <param name="e">A <see cref="T:System.EventArgs"/> that contains the event data.</param>
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protected override void OnResizeBegin(EventArgs e)
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{
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isUserResizing = true;
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base.OnResizeBegin(e);
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cachedSize = Size;
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OnPauseRendering(e);
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Form.ResizeEnd"/> event.
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/// </summary>
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/// <param name="e">A <see cref="T:System.EventArgs"/> that contains the event data.</param>
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protected override void OnResizeEnd(EventArgs e)
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{
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base.OnResizeEnd(e);
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if (isUserResizing && cachedSize != Size)
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{
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OnUserResized(e);
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// UpdateScreen();
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}
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isUserResizing = false;
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OnResumeRendering(e);
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}
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/// <summary>
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/// Raises the <see cref="E:System.Windows.Forms.Form.Load"/> event.
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/// </summary>
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/// <param name="e">An <see cref="T:System.EventArgs"/> that contains the event data.</param>
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protected override void OnLoad(EventArgs e)
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{
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base.OnLoad(e);
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// UpdateScreen();
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}
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/// <summary>
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/// Paints the background of the control.
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/// </summary>
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/// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs"/> that contains the event data.</param>
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protected override void OnPaintBackground(PaintEventArgs e)
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{
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if (!isBackgroundFirstDraw)
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{
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base.OnPaintBackground(e);
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isBackgroundFirstDraw = true;
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}
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}
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/// <summary>
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/// Raises the Pause Rendering event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnPauseRendering(EventArgs e)
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{
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if (PauseRendering != null)
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PauseRendering(this, e);
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}
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/// <summary>
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/// Raises the Resume Rendering event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnResumeRendering(EventArgs e)
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{
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if (ResumeRendering != null)
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ResumeRendering(this, e);
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}
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/// <summary>
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/// Raises the User resized event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnUserResized(EventArgs e)
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{
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if (UserResized != null)
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UserResized(this, e);
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}
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private void OnMonitorChanged(EventArgs e)
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{
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if (MonitorChanged != null)
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MonitorChanged(this, e);
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}
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/// <summary>
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/// Raises the On App Activated event.
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnAppActivated(EventArgs e)
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{
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if (AppActivated != null)
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AppActivated(this, e);
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}
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/// <summary>
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/// Raises the App Deactivated event
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnAppDeactivated(EventArgs e)
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{
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if (AppDeactivated != null)
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AppDeactivated(this, e);
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}
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/// <summary>
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/// Raises the System Suspend event
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnSystemSuspend(EventArgs e)
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{
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if (SystemSuspend != null)
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SystemSuspend(this, e);
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}
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/// <summary>
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/// Raises the System Resume event
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/// </summary>
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/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
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private void OnSystemResume(EventArgs e)
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{
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if (SystemResume != null)
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SystemResume(this, e);
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}
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/// <summary>
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/// Raises the <see cref="E:Screensaver"/> event.
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/// </summary>
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/// <param name="e">The <see cref="System.ComponentModel.CancelEventArgs"/> instance containing the event data.</param>
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private void OnScreensaver(CancelEventArgs e)
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{
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if (Screensaver != null)
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Screensaver(this, e);
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}
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protected override void OnClientSizeChanged(EventArgs e)
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{
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base.OnClientSizeChanged(e);
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if (!isUserResizing && (isSizeChangedWithoutResizeBegin || cachedSize != Size))
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{
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isSizeChangedWithoutResizeBegin = false;
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cachedSize = Size;
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OnUserResized(EventArgs.Empty);
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//UpdateScreen();
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}
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}
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/// <summary>
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/// Override windows message loop handling.
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/// </summary>
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/// <param name="m">The Windows <see cref="T:System.Windows.Forms.Message"/> to process.</param>
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protected override void WndProc(ref Message m)
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{
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long wparam = m.WParam.ToInt64();
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switch (m.Msg)
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{
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case WM_SIZE:
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if (wparam == SIZE_MINIMIZED)
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{
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previousWindowState = FormWindowState.Minimized;
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OnPauseRendering(EventArgs.Empty);
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}
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else
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{
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RawRectangle rect;
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Win32Native.GetClientRect(m.HWnd, out rect);
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|
if (rect.Bottom - rect.Top == 0)
|
|||
|
|
{
|
|||
|
|
// Rapidly clicking the task bar to minimize and restore a window
|
|||
|
|
// can cause a WM_SIZE message with SIZE_RESTORED when
|
|||
|
|
// the window has actually become minimized due to rapid change
|
|||
|
|
// so just ignore this message
|
|||
|
|
}
|
|||
|
|
else if (wparam == SIZE_MAXIMIZED)
|
|||
|
|
{
|
|||
|
|
if (previousWindowState == FormWindowState.Minimized)
|
|||
|
|
OnResumeRendering(EventArgs.Empty);
|
|||
|
|
|
|||
|
|
previousWindowState = FormWindowState.Maximized;
|
|||
|
|
|
|||
|
|
OnUserResized(EventArgs.Empty);
|
|||
|
|
//UpdateScreen();
|
|||
|
|
cachedSize = Size;
|
|||
|
|
}
|
|||
|
|
else if (wparam == SIZE_RESTORED)
|
|||
|
|
{
|
|||
|
|
if (previousWindowState == FormWindowState.Minimized)
|
|||
|
|
OnResumeRendering(EventArgs.Empty);
|
|||
|
|
|
|||
|
|
if (!isUserResizing && (Size != cachedSize || previousWindowState == FormWindowState.Maximized))
|
|||
|
|
{
|
|||
|
|
previousWindowState = FormWindowState.Normal;
|
|||
|
|
|
|||
|
|
// Only update when cachedSize is != 0
|
|||
|
|
if (cachedSize != Size.Empty)
|
|||
|
|
{
|
|||
|
|
isSizeChangedWithoutResizeBegin = true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
previousWindowState = FormWindowState.Normal;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case WM_ACTIVATEAPP:
|
|||
|
|
if (wparam != 0)
|
|||
|
|
OnAppActivated(EventArgs.Empty);
|
|||
|
|
else
|
|||
|
|
OnAppDeactivated(EventArgs.Empty);
|
|||
|
|
break;
|
|||
|
|
case WM_POWERBROADCAST:
|
|||
|
|
if (wparam == PBT_APMQUERYSUSPEND)
|
|||
|
|
{
|
|||
|
|
OnSystemSuspend(EventArgs.Empty);
|
|||
|
|
m.Result = new IntPtr(1);
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
else if (wparam == PBT_APMRESUMESUSPEND)
|
|||
|
|
{
|
|||
|
|
OnSystemResume(EventArgs.Empty);
|
|||
|
|
m.Result = new IntPtr(1);
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case WM_MENUCHAR:
|
|||
|
|
m.Result = new IntPtr(MNC_CLOSE << 16); // IntPtr(MAKELRESULT(0, MNC_CLOSE));
|
|||
|
|
return;
|
|||
|
|
case WM_SYSCOMMAND:
|
|||
|
|
wparam &= 0xFFF0;
|
|||
|
|
if (wparam == SC_MONITORPOWER || wparam == SC_SCREENSAVE)
|
|||
|
|
{
|
|||
|
|
var e = new CancelEventArgs();
|
|||
|
|
OnScreensaver(e);
|
|||
|
|
if (e.Cancel)
|
|||
|
|
{
|
|||
|
|
m.Result = IntPtr.Zero;
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case WM_DISPLAYCHANGE:
|
|||
|
|
OnMonitorChanged(EventArgs.Empty);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
base.WndProc(ref m);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
protected override bool ProcessDialogKey(Keys keyData)
|
|||
|
|
{
|
|||
|
|
if (keyData == (Keys.Menu | Keys.Alt) || keyData == Keys.F10)
|
|||
|
|
return true;
|
|||
|
|
|
|||
|
|
return base.ProcessDialogKey(keyData);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|