source: Common/FormDimensions.cs

Last change on this file was 15, checked in by chronos, 17 months ago
  • Modified: Updated files.
File size: 12.9 KB
Line 
1using System;
2using System.Drawing;
3using System.Windows.Forms;
4using System.Runtime.InteropServices;
5using Microsoft.Win32;
6
7namespace Common
8{
9 public class FormDimensions
10 {
11 public Form Form;
12 public string RegSubKey;
13 public FormWindowState DefaultFormWindowState = FormWindowState.Normal;
14
15 [DllImport("user32.dll")]
16 [return: MarshalAs(UnmanagedType.Bool)]
17 static extern bool GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);
18
19 public FormDimensions()
20 {
21 RegSubKey = "Forms";
22 }
23
24 private struct WINDOWPLACEMENT
25 {
26 public int length;
27 public int flags;
28 public int showCmd;
29 public System.Drawing.Point ptMinPosition;
30 public System.Drawing.Point ptMaxPosition;
31 public System.Drawing.Rectangle rcNormalPosition;
32 }
33
34 const UInt32 SW_HIDE = 0;
35 const UInt32 SW_SHOWNORMAL = 1;
36 const UInt32 SW_NORMAL = 1;
37 const UInt32 SW_SHOWMINIMIZED = 2;
38 const UInt32 SW_SHOWMAXIMIZED = 3;
39 const UInt32 SW_MAXIMIZE = 3;
40 const UInt32 SW_SHOWNOACTIVATE = 4;
41 const UInt32 SW_SHOW = 5;
42 const UInt32 SW_MINIMIZE = 6;
43 const UInt32 SW_SHOWMINNOACTIVE = 7;
44 const UInt32 SW_SHOWNA = 8;
45 const UInt32 SW_RESTORE = 9;
46
47 private static WINDOWPLACEMENT GetPlacement(Form form)
48 {
49 WINDOWPLACEMENT placement = new WINDOWPLACEMENT();
50 placement.length = Marshal.SizeOf(placement);
51 GetWindowPlacement(form.Handle, ref placement);
52 return placement;
53 }
54
55 private static bool IsVisibleOnAnyScreen(Rectangle rect)
56 {
57 const int minVisible = 50;
58 foreach (Screen screen in Screen.AllScreens)
59 {
60 Rectangle visibleArea = screen.WorkingArea;
61 visibleArea.Intersect(rect);
62 if ((visibleArea.Width > minVisible) && (visibleArea.Height > minVisible) && (rect.Top >= 0))
63 {
64 return true;
65 }
66 }
67 return false;
68 }
69
70 public void Load(Form form, Form parentForm = null)
71 {
72 Form = form;
73 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + form.Name) ??
74 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + form.Name);
75
76 string name = "";
77 if (parentForm != null) name = parentForm.Name;
78
79 bool prevVisibleState = form.Visible;
80 form.Visible = false;
81 Rectangle windowPosition = form.DesktopBounds;
82 Rectangle restoreBounds = form.RestoreBounds;
83 if (parentForm != null)
84 {
85 // Set default form position centered to parent form
86 Point currentParentFormCenter = parentForm.DesktopBounds.Center();
87 windowPosition.X = currentParentFormCenter.X - windowPosition.Width / 2;
88 windowPosition.Y = currentParentFormCenter.Y - windowPosition.Height / 2;
89 restoreBounds.X = currentParentFormCenter.X - restoreBounds.Width / 2;
90 restoreBounds.Y = currentParentFormCenter.Y - restoreBounds.Height / 2;
91 }
92 windowPosition = new Rectangle(
93 (int)regKey.GetValue("DesktopBoundsLeft" + name, windowPosition.Left),
94 (int)regKey.GetValue("DesktopBoundsTop" + name, windowPosition.Top),
95 (int)regKey.GetValue("DesktopBoundsWidth" + name, windowPosition.Width),
96 (int)regKey.GetValue("DesktopBoundsHeight" + name, windowPosition.Height));
97 restoreBounds = new Rectangle(
98 (int)regKey.GetValue("RestoreBoundsLeft" + name, restoreBounds.Left),
99 (int)regKey.GetValue("RestoreBoundsTop" + name, restoreBounds.Top),
100 (int)regKey.GetValue("RestoreBoundsWidth" + name, restoreBounds.Width),
101 (int)regKey.GetValue("RestoreBoundsHeight" + name, restoreBounds.Height));
102 FormWindowState windowState = (FormWindowState)regKey.GetValue("State" + name, (int)DefaultFormWindowState);
103 if (parentForm != null)
104 {
105 Rectangle parentBounds = new Rectangle(
106 (int)regKey.GetValue("ParentBoundsLeft" + name, parentForm.DesktopBounds.Left),
107 (int)regKey.GetValue("ParentBoundsTop" + name, parentForm.DesktopBounds.Top),
108 (int)regKey.GetValue("ParentBoundsWidth" + name, parentForm.DesktopBounds.Width),
109 (int)regKey.GetValue("ParentBoundsHeight" + name, parentForm.DesktopBounds.Height));
110 Point currentParentFormCenter = parentForm.DesktopBounds.Center();
111 Point previousParentFormCenter = parentBounds.Center();
112 Point parentShift = Point.Subtract(currentParentFormCenter, new Size(previousParentFormCenter));
113 windowPosition.Offset(parentShift);
114 }
115 switch (windowState)
116 {
117 case FormWindowState.Normal:
118 form.WindowState = FormWindowState.Normal;
119 if ((windowPosition != Rectangle.Empty) && IsVisibleOnAnyScreen(windowPosition))
120 {
121 form.DesktopBounds = windowPosition;
122 }
123 form.WindowState = windowState;
124 break;
125 case FormWindowState.Minimized:
126 form.WindowState = FormWindowState.Normal;
127 if ((windowPosition != Rectangle.Empty) && IsVisibleOnAnyScreen(restoreBounds))
128 {
129 form.DesktopBounds = restoreBounds;
130 }
131 break;
132 case FormWindowState.Maximized:
133 form.WindowState = FormWindowState.Normal;
134 if ((windowPosition != Rectangle.Empty) && IsVisibleOnAnyScreen(restoreBounds))
135 {
136 form.DesktopBounds = restoreBounds;
137 }
138 form.WindowState = FormWindowState.Maximized;
139 break;
140 }
141 form.Visible = prevVisibleState;
142 LoadControl(form);
143 }
144
145 public void Save(Form form, Form parentForm = null)
146 {
147 Form = form;
148 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + form.Name, true) ??
149 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + form.Name);
150
151 string name = "";
152 if (parentForm != null) name = parentForm.Name;
153
154 WINDOWPLACEMENT placement = GetPlacement(form);
155 const int WPF_RESTORETOMAXIMIZED = 0x2;
156
157 if ((form.WindowState == FormWindowState.Minimized) &&
158 ((placement.flags | WPF_RESTORETOMAXIMIZED) != WPF_RESTORETOMAXIMIZED))
159 {
160 regKey.SetValue("State" + name, (int)FormWindowState.Minimized);
161 }
162 else
163 {
164 regKey.SetValue("State" + name, (int)form.WindowState);
165 }
166 regKey.SetValue("DesktopBoundsLeft" + name, form.DesktopBounds.Left);
167 regKey.SetValue("DesktopBoundsTop" + name, form.DesktopBounds.Top);
168 regKey.SetValue("DesktopBoundsWidth" + name, form.DesktopBounds.Width);
169 regKey.SetValue("DesktopBoundsHeight" + name, form.DesktopBounds.Height);
170 regKey.SetValue("RestoreBoundsLeft" + name, form.RestoreBounds.Left);
171 regKey.SetValue("RestoreBoundsTop" + name, form.RestoreBounds.Top);
172 regKey.SetValue("RestoreBoundsWidth" + name, form.RestoreBounds.Width);
173 regKey.SetValue("RestoreBoundsHeight" + name, form.RestoreBounds.Height);
174 if (parentForm != null)
175 {
176 regKey.SetValue("ParentBoundsLeft" + name, parentForm.DesktopBounds.Left);
177 regKey.SetValue("ParentBoundsTop" + name, parentForm.DesktopBounds.Top);
178 regKey.SetValue("ParentBoundsWidth" + name, parentForm.DesktopBounds.Width);
179 regKey.SetValue("ParentBoundsHeight" + name, parentForm.DesktopBounds.Height);
180 }
181 SaveControl(form);
182 }
183
184 public void LoadControl(Control control)
185 {
186 switch (control)
187 {
188 case ListView listView:
189 {
190 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + Form.Name + "\\" + listView.Name, true) ??
191 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + Form.Name + "\\" + listView.Name);
192
193 for (int I = 0; I < listView.Columns.Count; I++)
194 {
195 object value = regKey.GetValue(listView.Columns[I].Text);
196 if (value != null) listView.Columns[I].Width = (int)value;
197 }
198
199 break;
200 }
201 case DataGridView dataGridView:
202 {
203 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + Form.Name + "\\" + dataGridView.Name, true) ??
204 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + Form.Name + "\\" + dataGridView.Name);
205
206 for (int I = 0; I < dataGridView.Columns.Count; I++)
207 {
208 object value = regKey.GetValue("ColWidth" + I);
209 if (value != null) dataGridView.Columns[I].Width = (int)value;
210 }
211
212 break;
213 }
214 case SplitContainer splitContainer:
215 {
216 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + Form.Name + "\\" + splitContainer.Name, true) ??
217 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + Form.Name + "\\" + splitContainer.Name);
218
219 object value = regKey.GetValue("SplitterDistance");
220 if (value != null)
221 splitContainer.SplitterDistance = (int)value;
222 break;
223 }
224 }
225
226 foreach (Control child in control.Controls)
227 {
228 LoadControl(child);
229 }
230 }
231
232 public void SaveControl(Control control)
233 {
234 switch (control)
235 {
236 case ListView listView:
237 {
238 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + Form.Name + "\\" + listView.Name, true) ??
239 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + Form.Name + "\\" + listView.Name);
240
241 for (int I = 0; I < listView.Columns.Count; I++)
242 {
243 regKey.SetValue(listView.Columns[I].Text, listView.Columns[I].Width);
244 }
245
246 break;
247 }
248 case DataGridView dataGridView:
249 {
250 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + Form.Name + "\\" + dataGridView.Name, true) ??
251 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + Form.Name + "\\" + dataGridView.Name);
252
253 for (int I = 0; I < dataGridView.Columns.Count; I++)
254 {
255 regKey.SetValue("ColWidth" + I, dataGridView.Columns[I].Width);
256 }
257
258 break;
259 }
260 case SplitContainer splitContainer:
261 {
262 RegistryKey regKey = Application.UserAppDataRegistry.OpenSubKey(RegSubKey + "\\" + Form.Name + "\\" + splitContainer.Name, true) ??
263 Application.UserAppDataRegistry.CreateSubKey(RegSubKey + "\\" + Form.Name + "\\" + splitContainer.Name);
264
265 regKey.SetValue("SplitterDistance", splitContainer.SplitterDistance);
266 break;
267 }
268 }
269
270 foreach (Control child in control.Controls)
271 {
272 SaveControl(child);
273 }
274 }
275 }
276
277 public static class RectangleExt
278 {
279 public static Point Center(this Rectangle rect)
280 {
281 return new Point(rect.Left + rect.Width / 2,
282 rect.Top + rect.Height / 2);
283 }
284 }
285}
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