1 // Permission is hereby granted, free of charge, to any person obtaining
2 // a copy of this software and associated documentation files (the
3 // "Software"), to deal in the Software without restriction, including
4 // without limitation the rights to use, copy, modify, merge, publish,
5 // distribute, sublicense, and/or sell copies of the Software, and to
6 // permit persons to whom the Software is furnished to do so, subject to
7 // the following conditions:
9 // The above copyright notice and this permission notice shall be
10 // included in all copies or substantial portions of the Software.
12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 // Copyright (c) 2004-2006 Novell, Inc.
23 // Peter Bartok pbartok@novell.com
24 // Sebastien Pouliot sebastien@ximian.com
30 using System.Threading;
31 using System.Runtime.InteropServices;
33 namespace System.Windows.Forms {
34 internal abstract class XplatUIDriver {
35 internal abstract IntPtr InitializeDriver();
36 internal abstract void ShutdownDriver(IntPtr token);
37 internal delegate IntPtr WndProc(IntPtr hwnd, Msg msg, IntPtr wParam, IntPtr lParam);
40 #region XplatUI Driver Properties
41 internal virtual int ActiveWindowTrackingDelay { get { return 0; } }
43 internal virtual Color ForeColor {
45 return ThemeEngine.Current.DefaultWindowForeColor;
49 internal virtual Color BackColor {
51 return ThemeEngine.Current.DefaultWindowBackColor;
55 internal virtual Size Border3DSize {
57 return new Size (2, 2);
61 internal virtual Size BorderSize {
63 return new Size (1, 1);
67 internal virtual Size CaptionButtonSize {
69 return new Size (18, 18);
73 internal virtual int CaretBlinkTime { get { return 530; } }
74 internal virtual int CaretWidth { get { return 10; } }
76 internal virtual Size DoubleClickSize {
78 return new Size (4, 4);
82 internal virtual int DoubleClickTime {
88 internal virtual Size FixedFrameBorderSize {
90 return new Size (3, 3);
94 internal virtual Font Font {
96 return ThemeEngine.Current.DefaultFont;
100 internal virtual int FontSmoothingContrast { get { return 1400; } }
101 internal virtual int FontSmoothingType { get { return 1; } }
102 internal virtual int HorizontalResizeBorderThickness { get { return 8; } }
103 internal virtual bool IsActiveWindowTrackingEnabled { get { return false; } }
104 internal virtual bool IsComboBoxAnimationEnabled { get { return false; } }
105 internal virtual bool IsDropShadowEnabled { get { return false; } }
106 internal virtual bool IsFontSmoothingEnabled { get { return true; } }
107 internal virtual bool IsHotTrackingEnabled { get { return false; } }
108 internal virtual bool IsIconTitleWrappingEnabled { get { return true; } }
109 internal virtual bool IsKeyboardPreferred { get { return false; } }
110 internal virtual bool IsListBoxSmoothScrollingEnabled { get { return true; } }
111 internal virtual bool IsMenuAnimationEnabled { get { return false; } }
112 internal virtual bool IsMenuFadeEnabled { get { return true; } }
113 internal virtual bool IsMinimizeRestoreAnimationEnabled { get { return false; } }
114 internal virtual bool IsSelectionFadeEnabled { get { return false; } }
115 internal virtual bool IsSnapToDefaultEnabled { get { return false; } }
116 internal virtual bool IsTitleBarGradientEnabled { get { return false; } }
117 internal virtual bool IsToolTipAnimationEnabled { get { return false; } }
118 internal virtual Size MenuBarButtonSize { get { return new Size (19, 19); } }
119 public virtual Size MenuButtonSize {
121 return new Size(18, 18);
124 internal virtual int MenuShowDelay { get { return 0; } }
126 internal virtual Keys ModifierKeys {
132 internal virtual MouseButtons MouseButtons {
134 return MouseButtons.None;
138 internal virtual Size MouseHoverSize {
140 return new Size (1, 1);
144 internal virtual int MouseHoverTime {
150 internal virtual int MouseSpeed {
154 internal virtual int MouseWheelScrollDelta {
160 internal virtual Point MousePosition {
166 internal virtual int MenuHeight {
172 internal virtual LeftRightAlignment PopupMenuAlignment {
173 get { return LeftRightAlignment.Left; }
176 internal virtual PowerStatus PowerStatus {
177 get { throw new NotImplementedException ("Has not been implemented yet for this platform."); }
180 internal virtual int SizingBorderWidth {
184 internal virtual Size SmallCaptionButtonSize {
185 get { return new Size (15, 15); }
188 internal virtual bool UIEffectsEnabled {
189 get { return false; }
192 internal virtual bool DropTarget {
201 internal virtual int HorizontalScrollBarHeight {
207 internal virtual bool UserClipWontExposeParent {
213 internal virtual int VerticalResizeBorderThickness { get { return 8; } }
215 internal virtual int VerticalScrollBarWidth {
221 internal abstract int CaptionHeight { get; }
222 internal abstract Size CursorSize { get; }
223 internal abstract bool DragFullWindows { get; }
224 internal abstract Size DragSize { get; }
225 internal abstract Size FrameBorderSize { get; }
226 internal abstract Size IconSize { get; }
227 internal abstract Size MaxWindowTrackSize { get; }
228 internal abstract bool MenuAccessKeysUnderlined { get; }
229 internal virtual Size MinimizedWindowSize {
231 const int BorderWidth = 3;
232 return new Size (154 + 2 * BorderWidth, SystemInformation.CaptionHeight + 2 * BorderWidth - 1);
235 internal abstract Size MinimizedWindowSpacingSize { get; }
236 internal abstract Size MinimumWindowSize { get; }
237 internal virtual Size MinimumFixedToolWindowSize { get { return Size.Empty; } }
238 internal virtual Size MinimumSizeableToolWindowSize { get { return Size.Empty; } }
239 internal virtual Size MinimumNoBorderWindowSize { get { return Size.Empty; } }
240 internal virtual Size MinWindowTrackSize {
242 return new Size (112, 27);
245 internal abstract Size SmallIconSize { get; }
246 internal abstract int MouseButtonCount { get; }
247 internal abstract bool MouseButtonsSwapped { get; }
248 internal abstract bool MouseWheelPresent { get; }
249 internal abstract Rectangle VirtualScreen { get; }
250 internal abstract Rectangle WorkingArea { get; }
251 internal abstract bool ThemesEnabled { get; }
253 internal virtual bool RequiresPositiveClientAreaSize {
259 public virtual int ToolWindowCaptionHeight {
265 public virtual Size ToolWindowCaptionButtonSize {
267 return new Size (15, 15);
270 #endregion // XplatUI Driver Properties
272 internal abstract event EventHandler Idle;
274 #region XplatUI Driver Methods
275 internal abstract void AudibleAlert(AlertType alert);
277 internal abstract void BeginMoveResize (IntPtr handle); // init a window manager driven resize event
279 internal abstract void EnableThemes();
281 internal abstract void GetDisplaySize(out Size size);
283 internal abstract IntPtr CreateWindow(CreateParams cp);
284 internal abstract IntPtr CreateWindow(IntPtr Parent, int X, int Y, int Width, int Height);
285 internal abstract void DestroyWindow(IntPtr handle);
287 internal abstract FormWindowState GetWindowState(IntPtr handle);
288 internal abstract void SetWindowState(IntPtr handle, FormWindowState state);
289 internal abstract void SetWindowMinMax(IntPtr handle, Rectangle maximized, Size min, Size max);
291 internal abstract void SetWindowStyle(IntPtr handle, CreateParams cp);
293 internal abstract double GetWindowTransparency(IntPtr handle);
294 internal abstract void SetWindowTransparency(IntPtr handle, double transparency, Color key);
295 internal abstract TransparencySupport SupportsTransparency();
297 internal virtual void SetAllowDrop (IntPtr handle, bool value)
299 Console.Error.WriteLine ("Drag and Drop is currently " +
300 "not supported on this platform");
303 internal virtual DragDropEffects StartDrag(IntPtr handle, object data, DragDropEffects allowedEffects) {
304 Console.Error.WriteLine ("Drag and Drop is currently " +
305 "not supported on this platform");
306 return DragDropEffects.None;
309 internal abstract void SetBorderStyle(IntPtr handle, FormBorderStyle border_style);
310 internal abstract void SetMenu(IntPtr handle, Menu menu);
312 internal abstract bool GetText(IntPtr handle, out string text);
313 internal abstract bool Text(IntPtr handle, string text);
314 internal abstract bool SetVisible(IntPtr handle, bool visible, bool activate);
315 internal abstract bool IsVisible(IntPtr handle);
316 internal abstract bool IsEnabled(IntPtr handle);
317 internal virtual bool IsKeyLocked (VirtualKeys key) { return false; }
318 internal abstract IntPtr SetParent(IntPtr handle, IntPtr parent);
319 internal abstract IntPtr GetParent(IntPtr handle);
321 internal abstract void UpdateWindow(IntPtr handle);
322 internal abstract PaintEventArgs PaintEventStart (ref Message msg, IntPtr handle, bool client);
323 internal abstract void PaintEventEnd (ref Message msg, IntPtr handle, bool client);
325 internal abstract void SetWindowPos(IntPtr handle, int x, int y, int width, int height);
326 internal abstract void GetWindowPos(IntPtr handle, bool is_toplevel, out int x, out int y, out int width, out int height, out int client_width, out int client_height);
327 internal abstract void Activate(IntPtr handle);
328 internal abstract void EnableWindow(IntPtr handle, bool Enable);
329 internal abstract void SetModal(IntPtr handle, bool Modal);
330 internal abstract void Invalidate(IntPtr handle, Rectangle rc, bool clear);
331 internal abstract void InvalidateNC(IntPtr handle);
332 internal abstract IntPtr DefWndProc(ref Message msg);
333 internal abstract void HandleException(Exception e);
334 internal abstract void DoEvents();
335 internal abstract bool PeekMessage(Object queue_id, ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax, uint flags);
336 internal abstract void PostQuitMessage(int exitCode);
337 internal abstract bool GetMessage(object queue_id, ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax);
338 internal abstract bool TranslateMessage(ref MSG msg);
339 internal abstract IntPtr DispatchMessage(ref MSG msg);
341 internal abstract bool SetZOrder(IntPtr hWnd, IntPtr AfterhWnd, bool Top, bool Bottom);
342 internal abstract bool SetTopmost(IntPtr hWnd, bool Enabled);
343 internal abstract bool SetOwner(IntPtr hWnd, IntPtr hWndOwner);
345 internal abstract bool CalculateWindowRect(ref Rectangle ClientRect, CreateParams cp, Menu menu, out Rectangle WindowRect);
347 internal abstract Region GetClipRegion(IntPtr hwnd);
348 internal abstract void SetClipRegion(IntPtr hwnd, Region region);
350 internal abstract void SetCursor(IntPtr hwnd, IntPtr cursor);
351 internal abstract void ShowCursor(bool show);
352 internal abstract void OverrideCursor(IntPtr cursor);
353 internal abstract IntPtr DefineCursor(Bitmap bitmap, Bitmap mask, Color cursor_pixel, Color mask_pixel, int xHotSpot, int yHotSpot);
354 internal abstract IntPtr DefineStdCursor(StdCursor id);
355 internal abstract Bitmap DefineStdCursorBitmap(StdCursor id);
356 internal abstract void DestroyCursor(IntPtr cursor);
357 internal abstract void GetCursorInfo(IntPtr cursor, out int width, out int height, out int hotspot_x, out int hotspot_y);
359 internal abstract void GetCursorPos(IntPtr hwnd, out int x, out int y);
360 internal abstract void SetCursorPos(IntPtr hwnd, int x, int y);
362 internal abstract void ScreenToClient(IntPtr hwnd, ref int x, ref int y);
363 internal abstract void ClientToScreen(IntPtr hwnd, ref int x, ref int y);
365 internal abstract void GrabWindow(IntPtr hwnd, IntPtr ConfineToHwnd);
366 internal abstract void GrabInfo(out IntPtr hwnd, out bool GrabConfined, out Rectangle GrabArea);
367 internal abstract void UngrabWindow(IntPtr hwnd);
369 internal abstract void SendAsyncMethod (AsyncMethodData method);
370 internal abstract void SetTimer (Timer timer);
371 internal abstract void KillTimer (Timer timer);
373 internal abstract void CreateCaret(IntPtr hwnd, int width, int height);
374 internal abstract void DestroyCaret(IntPtr hwnd);
375 internal abstract void SetCaretPos(IntPtr hwnd, int x, int y);
376 internal abstract void CaretVisible(IntPtr hwnd, bool visible);
378 internal abstract IntPtr GetFocus();
379 internal abstract void SetFocus(IntPtr hwnd);
380 internal abstract IntPtr GetActive();
381 internal abstract IntPtr GetPreviousWindow(IntPtr hwnd);
383 internal abstract void ScrollWindow(IntPtr hwnd, Rectangle rectangle, int XAmount, int YAmount, bool with_children);
384 internal abstract void ScrollWindow(IntPtr hwnd, int XAmount, int YAmount, bool with_children);
386 internal abstract bool GetFontMetrics(Graphics g, Font font, out int ascent, out int descent);
388 internal abstract bool SystrayAdd(IntPtr hwnd, string tip, Icon icon, out ToolTip tt);
389 internal abstract bool SystrayChange(IntPtr hwnd, string tip, Icon icon, ref ToolTip tt);
390 internal abstract void SystrayRemove(IntPtr hwnd, ref ToolTip tt);
391 internal abstract void SystrayBalloon(IntPtr hwnd, int timeout, string title, string text, ToolTipIcon icon);
393 internal abstract Point GetMenuOrigin(IntPtr hwnd);
394 internal abstract void MenuToScreen(IntPtr hwnd, ref int x, ref int y);
395 internal abstract void ScreenToMenu(IntPtr hwnd, ref int x, ref int y);
397 internal abstract void SetIcon(IntPtr handle, Icon icon);
399 internal abstract void ClipboardClose(IntPtr handle);
400 internal abstract IntPtr ClipboardOpen (bool primary_selection);
401 internal abstract int ClipboardGetID(IntPtr handle, string format);
402 internal abstract void ClipboardStore(IntPtr handle, object obj, int id, XplatUI.ObjectToClipboard converter, bool copy);
403 internal abstract int[] ClipboardAvailableFormats(IntPtr handle);
404 internal abstract object ClipboardRetrieve(IntPtr handle, int id, XplatUI.ClipboardToObject converter);
406 internal abstract void DrawReversibleLine(Point start, Point end, Color backColor);
407 internal abstract void DrawReversibleRectangle(IntPtr handle, Rectangle rect, int line_width);
408 internal abstract void FillReversibleRectangle (Rectangle rectangle, Color backColor);
409 internal abstract void DrawReversibleFrame (Rectangle rectangle, Color backColor, FrameStyle style);
411 internal abstract SizeF GetAutoScaleSize(Font font);
413 internal abstract IntPtr SendMessage(IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam);
414 internal abstract bool PostMessage(IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam);
415 internal abstract int SendInput(IntPtr hwnd, System.Collections.Queue keys);
417 internal abstract object StartLoop(Thread thread);
418 internal abstract void EndLoop(Thread thread);
420 internal abstract void RequestNCRecalc(IntPtr hwnd);
421 internal abstract void ResetMouseHover(IntPtr hwnd);
422 internal abstract void RequestAdditionalWM_NCMessages(IntPtr hwnd, bool hover, bool leave);
424 internal abstract void RaiseIdle (EventArgs e);
426 // System information
427 internal abstract int KeyboardSpeed { get; }
428 internal abstract int KeyboardDelay { get; }
432 internal virtual void CreateOffscreenDrawable (IntPtr handle,
433 int width, int height,
434 out object offscreen_drawable)
436 Bitmap bmp = new Bitmap (width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
438 offscreen_drawable = bmp;
441 internal virtual void DestroyOffscreenDrawable (object offscreen_drawable)
443 Bitmap bmp = (Bitmap)offscreen_drawable;
448 internal virtual Graphics GetOffscreenGraphics (object offscreen_drawable)
450 Bitmap bmp = (Bitmap)offscreen_drawable;
451 return Graphics.FromImage (bmp);
454 internal virtual void BlitFromOffscreen (IntPtr dest_handle,
456 object offscreen_drawable,
457 Graphics offscreen_dc,
460 dest_dc.DrawImage ((Bitmap)offscreen_drawable, r, r, GraphicsUnit.Pixel);
463 internal virtual void SetForegroundWindow (IntPtr handle)
467 #endregion // XplatUI Driver Methods
470 internal class XplatUIDriverSupport {
471 #region XplatUI Driver Support Methods
472 internal static void ExecutionCallback (object state)
474 AsyncMethodData data = (AsyncMethodData) state;
475 AsyncMethodResult result = data.Result;
479 ret = data.Method.DynamicInvoke (data.Args);
480 } catch (Exception ex) {
481 if (result != null) {
482 result.CompleteWithException (ex);
489 if (result != null) {
490 result.Complete (ret);
494 internal static void ExecuteClientMessage (GCHandle gchandle)
496 AsyncMethodData data = (AsyncMethodData) gchandle.Target;
498 if (data.Context == null) {
499 ExecutionCallback (data);
501 ExecutionContext.Run (data.Context, new ContextCallback (ExecutionCallback), data);
509 #endregion // XplatUI Driver Support Methods