109 строки
3.1 KiB
C#
109 строки
3.1 KiB
C#
//
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// SelectColorDialogBackend.cs
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//
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// Author:
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// David Karlaš <david.karlas@gmail.com>
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//
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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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using System;
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using System.ComponentModel;
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using System.IO;
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using System.Windows.Forms;
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using System.Windows.Interop;
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using Xwt.Backends;
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using IWin32Window = System.Windows.Forms.IWin32Window;
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using Xwt.Drawing;
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using System.Runtime.InteropServices;
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namespace Xwt.WPFBackend
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{
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public class SelectColorDialogBackend
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: Backend, ISelectColorDialogBackend
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{
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private ColorDialogWithTitle dialog;
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public SelectColorDialogBackend()
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{
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dialog = new ColorDialogWithTitle();
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}
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public bool Run(IWindowFrameBackend parent, string title, bool supportsAlpha)
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{
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//TODO: Support alpha + create custom WPF solution?
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dialog.Title = title;
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if (parent != null)
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return (this.dialog.ShowDialog(new WpfWin32Window(((WindowFrameBackend)parent).Window)) == DialogResult.OK);
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else
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return (this.dialog.ShowDialog() == DialogResult.OK);
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}
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public void Dispose()
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{
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this.dialog.Dispose();
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}
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public Color Color
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{
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get
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{
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return Color.FromBytes(this.dialog.Color.R, this.dialog.Color.G, this.dialog.Color.B, this.dialog.Color.A);
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}
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set
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{
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this.dialog.Color = System.Drawing.Color.FromArgb((byte)(value.Alpha * 255), (byte)(value.Red * 255), (byte)(value.Green * 255), (byte)(value.Blue * 255));
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}
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}
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private class ColorDialogWithTitle : ColorDialog
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{
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public string Title { get; set; }
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[DllImport("user32.dll")]
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private static extern bool SetWindowText(IntPtr hWnd, string title);
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protected override IntPtr HookProc(IntPtr hWnd, int msg, IntPtr wparam, IntPtr lparam)
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{
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IntPtr hookProc = base.HookProc(hWnd, msg, wparam, lparam);
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if (msg == 0x0110 && Title != null)//WM_INITDIALOG
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{
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SetWindowText(hWnd, Title);
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}
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return hookProc;
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}
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}
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private class WpfWin32Window
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: IWin32Window
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{
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public WpfWin32Window(System.Windows.Window window)
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{
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this.helper = new WindowInteropHelper(window);
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}
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public IntPtr Handle
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{
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get { return this.helper.Handle; }
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}
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private readonly WindowInteropHelper helper;
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}
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}
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}
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