// 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) 2004-2006 Novell, Inc.
//
// Authors:
// Peter Bartok pbartok@novell.com
// Sebastien Pouliot sebastien@ximian.com
//
// COMPLETE
using System.Drawing;
using System.Threading;
using System.Runtime.InteropServices;
namespace System.Windows.Forms{
internal abstract class XplatUIDriver {
internal abstract IntPtr InitializeDriver();
internal abstract void ShutdownDriver(IntPtr token);
internal delegate IntPtr WndProc(IntPtr hwnd, Msg msg, IntPtr wParam, IntPtr lParam);
#region XplatUI Driver Properties
internal virtual int ActiveWindowTrackingDelay { get { return 0; } }
internal virtual Color ForeColor {
get {
return ThemeEngine.Current.DefaultWindowForeColor;
}
}
internal virtual Color BackColor {
get {
return ThemeEngine.Current.DefaultWindowBackColor;
}
}
internal virtual Size Border3DSize {
get {
return new Size (2, 2);
}
}
internal virtual Size BorderSize {
get {
return new Size (1, 1);
}
}
internal virtual Size CaptionButtonSize {
get {
return new Size (18, 18);
}
}
internal virtual int CaretBlinkTime { get { return 530; } }
internal virtual int CaretWidth { get { return 10; } }
internal virtual Size DoubleClickSize {
get {
return new Size (4, 4);
}
}
internal virtual int DoubleClickTime {
get {
return 500;
}
}
internal virtual Size FixedFrameBorderSize {
get {
return new Size (3, 3);
}
}
internal virtual Font Font {
get {
return ThemeEngine.Current.DefaultFont;
}
}
internal virtual int FontSmoothingContrast { get { return 1400; } }
internal virtual int FontSmoothingType { get { return 1; } }
internal virtual int HorizontalResizeBorderThickness { get { return 8; } }
internal virtual bool IsActiveWindowTrackingEnabled { get { return false; } }
internal virtual bool IsComboBoxAnimationEnabled { get { return false; } }
internal virtual bool IsDropShadowEnabled { get { return false; } }
internal virtual bool IsFontSmoothingEnabled { get { return true; } }
internal virtual bool IsHotTrackingEnabled { get { return false; } }
internal virtual bool IsIconTitleWrappingEnabled { get { return true; } }
internal virtual bool IsKeyboardPreferred { get { return false; } }
internal virtual bool IsListBoxSmoothScrollingEnabled { get { return true; } }
internal virtual bool IsMenuAnimationEnabled { get { return false; } }
internal virtual bool IsMenuFadeEnabled { get { return true; } }
internal virtual bool IsMinimizeRestoreAnimationEnabled { get { return false; } }
internal virtual bool IsSelectionFadeEnabled { get { return false; } }
internal virtual bool IsSnapToDefaultEnabled { get { return false; } }
internal virtual bool IsTitleBarGradientEnabled { get { return false; } }
internal virtual bool IsToolTipAnimationEnabled { get { return false; } }
internal virtual Size MenuBarButtonSize { get { return new Size (19, 19); } }
public virtual Size MenuButtonSize {
get {
return new Size(18, 18);
}
}
internal virtual int MenuShowDelay { get { return 0; } }
internal virtual Keys ModifierKeys {
get {
return Keys.None;
}
}
internal virtual MouseButtons MouseButtons {
get {
return MouseButtons.None;
}
}
internal virtual Size MouseHoverSize {
get {
return new Size (1, 1);
}
}
internal virtual int MouseHoverTime {
get {
return 500;
}
}
internal virtual int MouseSpeed {
get { return 10; }
}
internal virtual int MouseWheelScrollDelta {
get {
return 120;
}
}
internal virtual Point MousePosition {
get {
return Point.Empty;
}
}
internal virtual int MenuHeight {
get {
return 19;
}
}
internal virtual LeftRightAlignment PopupMenuAlignment {
get { return LeftRightAlignment.Left; }
}
#if NET_2_0
internal virtual PowerStatus PowerStatus {
get { throw new NotImplementedException ("Has not been implemented yet for this platform."); }
}
#endif
internal virtual int SizingBorderWidth {
get { return 4; }
}
internal virtual Size SmallCaptionButtonSize {
get { return new Size (15, 15); }
}
internal virtual bool UIEffectsEnabled {
get { return false; }
}
internal virtual bool DropTarget {
get {
return false;
}
set {
}
}
internal virtual int HorizontalScrollBarHeight {
get {
return 16;
}
}
internal virtual bool UserClipWontExposeParent {
get {
return true;
}
}
internal virtual int VerticalResizeBorderThickness { get { return 8; } }
internal virtual int VerticalScrollBarWidth {
get {
return 16;
}
}
internal abstract int CaptionHeight { get; }
internal abstract Size CursorSize { get; }
internal abstract bool DragFullWindows { get; }
internal abstract Size DragSize { get; }
internal abstract Size FrameBorderSize { get; }
internal abstract Size IconSize { get; }
internal abstract Size MaxWindowTrackSize { get; }
internal abstract bool MenuAccessKeysUnderlined { get; }
internal virtual Size MinimizedWindowSize {
get {
const int BorderWidth = 3;
return new Size (154 + 2 * BorderWidth, SystemInformation.CaptionHeight + 2 * BorderWidth - 1);
}
}
internal abstract Size MinimizedWindowSpacingSize { get; }
internal abstract Size MinimumWindowSize { get; }
internal virtual Size MinimumFixedToolWindowSize { get { return Size.Empty; } }
internal virtual Size MinimumSizeableToolWindowSize { get { return Size.Empty; } }
internal virtual Size MinimumNoBorderWindowSize { get { return Size.Empty; } }
internal virtual Size MinWindowTrackSize {
get {
return new Size (112, 27);
}
}
internal abstract Size SmallIconSize { get; }
internal abstract int MouseButtonCount { get; }
internal abstract bool MouseButtonsSwapped { get; }
internal abstract bool MouseWheelPresent { get; }
internal abstract Rectangle VirtualScreen { get; }
internal abstract Rectangle WorkingArea { get; }
internal abstract bool ThemesEnabled { get; }
internal virtual bool RequiresPositiveClientAreaSize {
get {
return true;
}
}
public virtual int ToolWindowCaptionHeight {
get {
return 16;
}
}
public virtual Size ToolWindowCaptionButtonSize {
get {
return new Size (15, 15);
}
}
#endregion // XplatUI Driver Properties
internal abstract event EventHandler Idle;
#region XplatUI Driver Methods
internal abstract void AudibleAlert(AlertType alert);
internal abstract void BeginMoveResize (IntPtr handle); // init a window manager driven resize event
internal abstract void EnableThemes();
internal abstract void GetDisplaySize(out Size size);
internal abstract IntPtr CreateWindow(CreateParams cp);
internal abstract IntPtr CreateWindow(IntPtr Parent, int X, int Y, int Width, int Height);
internal abstract void DestroyWindow(IntPtr handle);
internal abstract FormWindowState GetWindowState(IntPtr handle);
internal abstract void SetWindowState(IntPtr handle, FormWindowState state);
internal abstract void SetWindowMinMax(IntPtr handle, Rectangle maximized, Size min, Size max);
internal abstract void SetWindowStyle(IntPtr handle, CreateParams cp);
internal abstract double GetWindowTransparency(IntPtr handle);
internal abstract void SetWindowTransparency(IntPtr handle, double transparency, Color key);
internal abstract TransparencySupport SupportsTransparency();
internal virtual void SetAllowDrop (IntPtr handle, bool value)
{
Console.Error.WriteLine ("Drag and Drop is currently " +
"not supported on this platform");
}
internal virtual DragDropEffects StartDrag(IntPtr handle, object data, DragDropEffects allowedEffects) {
Console.Error.WriteLine ("Drag and Drop is currently " +
"not supported on this platform");
return DragDropEffects.None;
}
internal abstract void SetBorderStyle(IntPtr handle, FormBorderStyle border_style);
internal abstract void SetMenu(IntPtr handle, Menu menu);
internal abstract bool GetText(IntPtr handle, out string text);
internal abstract bool Text(IntPtr handle, string text);
internal abstract bool SetVisible(IntPtr handle, bool visible, bool activate);
internal abstract bool IsVisible(IntPtr handle);
internal abstract bool IsEnabled(IntPtr handle);
internal virtual bool IsKeyLocked (VirtualKeys key) { return false; }
internal abstract IntPtr SetParent(IntPtr handle, IntPtr parent);
internal abstract IntPtr GetParent(IntPtr handle);
internal abstract void UpdateWindow(IntPtr handle);
internal abstract PaintEventArgs PaintEventStart (ref Message msg, IntPtr handle, bool client);
internal abstract void PaintEventEnd (ref Message msg, IntPtr handle, bool client);
internal abstract void SetWindowPos(IntPtr handle, int x, int y, int width, int height);
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);
internal abstract void Activate(IntPtr handle);
internal abstract void EnableWindow(IntPtr handle, bool Enable);
internal abstract void SetModal(IntPtr handle, bool Modal);
internal abstract void Invalidate(IntPtr handle, Rectangle rc, bool clear);
internal abstract void InvalidateNC(IntPtr handle);
internal abstract IntPtr DefWndProc(ref Message msg);
internal abstract void HandleException(Exception e);
internal abstract void DoEvents();
internal abstract bool PeekMessage(Object queue_id, ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax, uint flags);
internal abstract void PostQuitMessage(int exitCode);
internal abstract bool GetMessage(object queue_id, ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax);
internal abstract bool TranslateMessage(ref MSG msg);
internal abstract IntPtr DispatchMessage(ref MSG msg);
internal abstract bool SetZOrder(IntPtr hWnd, IntPtr AfterhWnd, bool Top, bool Bottom);
internal abstract bool SetTopmost(IntPtr hWnd, bool Enabled);
internal abstract bool SetOwner(IntPtr hWnd, IntPtr hWndOwner);
internal abstract bool CalculateWindowRect(ref Rectangle ClientRect, CreateParams cp, Menu menu, out Rectangle WindowRect);
internal abstract Region GetClipRegion(IntPtr hwnd);
internal abstract void SetClipRegion(IntPtr hwnd, Region region);
internal abstract void SetCursor(IntPtr hwnd, IntPtr cursor);
internal abstract void ShowCursor(bool show);
internal abstract void OverrideCursor(IntPtr cursor);
internal abstract IntPtr DefineCursor(Bitmap bitmap, Bitmap mask, Color cursor_pixel, Color mask_pixel, int xHotSpot, int yHotSpot);
internal abstract IntPtr DefineStdCursor(StdCursor id);
internal abstract Bitmap DefineStdCursorBitmap(StdCursor id);
internal abstract void DestroyCursor(IntPtr cursor);
internal abstract void GetCursorInfo(IntPtr cursor, out int width, out int height, out int hotspot_x, out int hotspot_y);
internal abstract void GetCursorPos(IntPtr hwnd, out int x, out int y);
internal abstract void SetCursorPos(IntPtr hwnd, int x, int y);
internal abstract void ScreenToClient(IntPtr hwnd, ref int x, ref int y);
internal abstract void ClientToScreen(IntPtr hwnd, ref int x, ref int y);
internal abstract void GrabWindow(IntPtr hwnd, IntPtr ConfineToHwnd);
internal abstract void GrabInfo(out IntPtr hwnd, out bool GrabConfined, out Rectangle GrabArea);
internal abstract void UngrabWindow(IntPtr hwnd);
internal abstract void SendAsyncMethod (AsyncMethodData method);
internal abstract void SetTimer (Timer timer);
internal abstract void KillTimer (Timer timer);
internal abstract void CreateCaret(IntPtr hwnd, int width, int height);
internal abstract void DestroyCaret(IntPtr hwnd);
internal abstract void SetCaretPos(IntPtr hwnd, int x, int y);
internal abstract void CaretVisible(IntPtr hwnd, bool visible);
internal abstract IntPtr GetFocus();
internal abstract void SetFocus(IntPtr hwnd);
internal abstract IntPtr GetActive();
internal abstract IntPtr GetPreviousWindow(IntPtr hwnd);
internal abstract void ScrollWindow(IntPtr hwnd, Rectangle rectangle, int XAmount, int YAmount, bool with_children);
internal abstract void ScrollWindow(IntPtr hwnd, int XAmount, int YAmount, bool with_children);
internal abstract bool GetFontMetrics(Graphics g, Font font, out int ascent, out int descent);
internal abstract bool SystrayAdd(IntPtr hwnd, string tip, Icon icon, out ToolTip tt);
internal abstract bool SystrayChange(IntPtr hwnd, string tip, Icon icon, ref ToolTip tt);
internal abstract void SystrayRemove(IntPtr hwnd, ref ToolTip tt);
#if NET_2_0
internal abstract void SystrayBalloon(IntPtr hwnd, int timeout, string title, string text, ToolTipIcon icon);
#endif
internal abstract Point GetMenuOrigin(IntPtr hwnd);
internal abstract void MenuToScreen(IntPtr hwnd, ref int x, ref int y);
internal abstract void ScreenToMenu(IntPtr hwnd, ref int x, ref int y);
internal abstract void SetIcon(IntPtr handle, Icon icon);
internal abstract void ClipboardClose(IntPtr handle);
internal abstract IntPtr ClipboardOpen (bool primary_selection);
internal abstract int ClipboardGetID(IntPtr handle, string format);
internal abstract void ClipboardStore(IntPtr handle, object obj, int id, XplatUI.ObjectToClipboard converter);
internal abstract int[] ClipboardAvailableFormats(IntPtr handle);
internal abstract object ClipboardRetrieve(IntPtr handle, int id, XplatUI.ClipboardToObject converter);
internal abstract void DrawReversibleLine(Point start, Point end, Color backColor);
internal abstract void DrawReversibleRectangle(IntPtr handle, Rectangle rect, int line_width);
internal abstract void FillReversibleRectangle (Rectangle rectangle, Color backColor);
internal abstract void DrawReversibleFrame (Rectangle rectangle, Color backColor, FrameStyle style);
internal abstract SizeF GetAutoScaleSize(Font font);
internal abstract IntPtr SendMessage(IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam);
internal abstract bool PostMessage(IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam);
internal abstract int SendInput(IntPtr hwnd, System.Collections.Queue keys);
internal abstract object StartLoop(Thread thread);
internal abstract void EndLoop(Thread thread);
internal abstract void RequestNCRecalc(IntPtr hwnd);
internal abstract void ResetMouseHover(IntPtr hwnd);
internal abstract void RequestAdditionalWM_NCMessages(IntPtr hwnd, bool hover, bool leave);
internal abstract void RaiseIdle (EventArgs e);
// System information
internal abstract int KeyboardSpeed { get; }
internal abstract int KeyboardDelay { get; }
// Double buffering
internal virtual void CreateOffscreenDrawable (IntPtr handle,
int width, int height,
out object offscreen_drawable)
{
Bitmap bmp = new Bitmap (width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
offscreen_drawable = bmp;
}
internal virtual void DestroyOffscreenDrawable (object offscreen_drawable)
{
Bitmap bmp = (Bitmap)offscreen_drawable;
bmp.Dispose ();
}
internal virtual Graphics GetOffscreenGraphics (object offscreen_drawable)
{
Bitmap bmp = (Bitmap)offscreen_drawable;
return Graphics.FromImage (bmp);
}
internal virtual void BlitFromOffscreen (IntPtr dest_handle,
Graphics dest_dc,
object offscreen_drawable,
Graphics offscreen_dc,
Rectangle r)
{
dest_dc.DrawImage ((Bitmap)offscreen_drawable, r, r, GraphicsUnit.Pixel);
}
internal virtual void SetForegroundWindow (IntPtr handle)
{
}
#endregion // XplatUI Driver Methods
}
internal class XplatUIDriverSupport {
#region XplatUI Driver Support Methods
#if NET_2_0
internal static void ExecutionCallback (object state)
{
AsyncMethodData data = (AsyncMethodData) state;
AsyncMethodResult result = data.Result;
object ret;
try {
ret = data.Method.DynamicInvoke (data.Args);
} catch (Exception ex) {
if (result != null) {
result.CompleteWithException (ex);
return;
}
throw;
}
if (result != null) {
result.Complete (ret);
}
}
internal static void ExecuteClientMessage (GCHandle gchandle)
{
AsyncMethodData data = (AsyncMethodData) gchandle.Target;
try {
if (data.Context == null) {
ExecutionCallback (data);
} else {
ExecutionContext.Run (data.Context, new ContextCallback (ExecutionCallback), data);
}
}
finally {
gchandle.Free ();
}
}
#else
// for NET_1_0 and NET_1_1 no (public) ExecutionContext exists
// so we must use the System.Threading.CompressedStack class
internal static void ExecuteClientMessage (GCHandle gchandle) {
AsyncMethodData data = (AsyncMethodData) gchandle.Target;
CompressedStack original = null;
#if !MWF_ON_MSRUNTIME
// Stack is non-null only if the security manager is active
if (data.Stack != null) {
original = Thread.CurrentThread.GetCompressedStack ();
Thread.CurrentThread.SetCompressedStack (data.Stack);
}
#endif
AsyncMethodResult result = data.Result;
object ret;
try {
ret = data.Method.DynamicInvoke (data.Args);
result.Complete (ret);
} catch (Exception ex) {
result.CompleteWithException (ex);
return;
} finally {
#if !MWF_ON_MSRUNTIME
if (data.Stack != null) {
// whatever occurs we must revert to the original compressed
// stack (null being a valid, empty, value in this case).
Thread.CurrentThread.SetCompressedStack (original);
}
#endif
gchandle.Free ();
}
}
#endif
#endregion // XplatUI Driver Support Methods
}
}
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