// 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) 2007 Novell, Inc. // // Authors: // Geoff Norton // // using System; using System.Drawing; using System.Runtime.InteropServices; namespace System.Windows.Forms.CarbonInternal { internal class ControlHandler : EventHandlerBase, IEventHandler { internal const uint kEventControlInitialize = 1000; internal const uint kEventControlDispose = 1001; internal const uint kEventControlGetOptimalBounds = 1003; internal const uint kEventControlDefInitialize = kEventControlInitialize; internal const uint kEventControlDefDispose = kEventControlDispose; internal const uint kEventControlHit = 1; internal const uint kEventControlSimulateHit = 2; internal const uint kEventControlHitTest = 3; internal const uint kEventControlDraw = 4; internal const uint kEventControlApplyBackground = 5; internal const uint kEventControlApplyTextColor = 6; internal const uint kEventControlSetFocusPart = 7; internal const uint kEventControlGetFocusPart = 8; internal const uint kEventControlActivate = 9; internal const uint kEventControlDeactivate = 10; internal const uint kEventControlSetCursor = 11; internal const uint kEventControlContextualMenuClick = 12; internal const uint kEventControlClick = 13; internal const uint kEventControlGetNextFocusCandidate = 14; internal const uint kEventControlGetAutoToggleValue = 15; internal const uint kEventControlInterceptSubviewClick = 16; internal const uint kEventControlGetClickActivation = 17; internal const uint kEventControlDragEnter = 18; internal const uint kEventControlDragWithin = 19; internal const uint kEventControlDragLeave = 20; internal const uint kEventControlDragReceive = 21; internal const uint kEventControlInvalidateForSizeChange = 22; internal const uint kEventControlTrackingAreaEntered = 23; internal const uint kEventControlTrackingAreaExited = 24; internal const uint kEventControlTrack = 51; internal const uint kEventControlGetScrollToHereStartPoint = 52; internal const uint kEventControlGetIndicatorDragConstraint = 53; internal const uint kEventControlIndicatorMoved = 54; internal const uint kEventControlGhostingFinished = 55; internal const uint kEventControlGetActionProcPart = 56; internal const uint kEventControlGetPartRegion = 101; internal const uint kEventControlGetPartBounds = 102; internal const uint kEventControlSetData = 103; internal const uint kEventControlGetData = 104; internal const uint kEventControlGetSizeConstraints= 105; internal const uint kEventControlGetFrameMetrics = 106; internal const uint kEventControlValueFieldChanged = 151; internal const uint kEventControlAddedSubControl = 152; internal const uint kEventControlRemovingSubControl = 153; internal const uint kEventControlBoundsChanged = 154; internal const uint kEventControlVisibilityChanged = 157; internal const uint kEventControlTitleChanged = 158; internal const uint kEventControlOwningWindowChanged = 159; internal const uint kEventControlHiliteChanged = 160; internal const uint kEventControlEnabledStateChanged = 161; internal const uint kEventControlLayoutInfoChanged = 162; internal const uint kEventControlArbitraryMessage = 201; internal const uint kEventParamCGContextRef = 1668183160; internal const uint kEventParamDirectObject = 757935405; internal const uint kEventParamControlPart = 1668313716; internal const uint typeControlRef = 1668575852; internal const uint typeCGContextRef = 1668183160; internal const uint typeQDPoint = 1363439732; internal const uint typeControlPartCode = 1668313716; internal ControlHandler (XplatUICarbon driver) : base (driver) {} public bool ProcessEvent (IntPtr eventref, IntPtr handle, uint kind, ref MSG msg) { Hwnd hwnd; bool client; GetEventParameter (eventref, kEventParamDirectObject, typeControlRef, IntPtr.Zero, (uint) Marshal.SizeOf (typeof (IntPtr)), IntPtr.Zero, ref handle); hwnd = Hwnd.ObjectFromHandle (handle); if (hwnd == null) return false; msg.hwnd = hwnd.Handle; client = (hwnd.ClientWindow == handle ? true : false); switch (kind) { case kEventControlDraw: { //FIXME: This is a hack which masks our over-redraw-expose problem if (client) { HIRect bounds = new HIRect (); HIViewGetBounds (handle, ref bounds); Driver.AddExpose (hwnd, client, bounds); } if (!hwnd.visible) { if (client) { hwnd.expose_pending = false; } else { hwnd.nc_expose_pending = false; } return false; } if (client) { if (!hwnd.expose_pending) { return false; } msg.message = Msg.WM_PAINT; } else { if (!hwnd.nc_expose_pending) { return false; } //DrawBackground here DrawBorders (hwnd); Region region = new Region (hwnd.Invalid); IntPtr hrgn = region.GetHrgn (null); // Graphics object isn't needed msg.message = Msg.WM_NCPAINT; msg.wParam = hrgn == IntPtr.Zero ? (IntPtr)1 : hrgn; msg.refobject = region; } return true; } case kEventControlVisibilityChanged: { HIRect bounds = new HIRect (); HIViewGetBounds (handle, ref bounds); Driver.AddExpose (hwnd, client, bounds); if (client) { msg.message = Msg.WM_SHOWWINDOW; msg.lParam = (IntPtr) 0; msg.wParam = (HIViewIsVisible (handle) ? (IntPtr)1 : (IntPtr)0); return true; } return false; } case kEventControlBoundsChanged: { HIRect view_frame = new HIRect (); HIViewGetFrame (handle, ref view_frame); if (!client) { hwnd.X = (int) view_frame.origin.x; hwnd.Y = (int) view_frame.origin.y; hwnd.Width = (int) view_frame.size.width; hwnd.Height = (int) view_frame.size.height; Driver.PerformNCCalc (hwnd); } return false; } case kEventControlGetFocusPart: { short pcode = 0; SetEventParameter (eventref, kEventParamControlPart, typeControlPartCode, (uint)Marshal.SizeOf (typeof (short)), ref pcode); return false; } } return false; } private void DrawBackground (Hwnd hwnd, IntPtr eventref, HIRect bounds) { if (XplatUICarbon.WindowBackgrounds [hwnd] != null) { IntPtr context = IntPtr.Zero; Color color = (Color) XplatUICarbon.WindowBackgrounds [hwnd]; GetEventParameter (eventref, kEventParamCGContextRef, typeCGContextRef, IntPtr.Zero, (uint) Marshal.SizeOf (typeof (IntPtr)), IntPtr.Zero, ref context); CGContextSetRGBFillColor (context, (float) color.R / 255, (float) color.G / 255, (float) color.B / 255, (float) color.A / 255); CGContextFillRect (context, bounds); } } private void DrawBorders (Hwnd hwnd) { switch (hwnd.border_style) { case FormBorderStyle.Fixed3D: { Graphics g; g = Graphics.FromHwnd(hwnd.whole_window); if (hwnd.border_static) ControlPaint.DrawBorder3D(g, new Rectangle(0, 0, hwnd.Width, hwnd.Height), Border3DStyle.SunkenOuter); else ControlPaint.DrawBorder3D(g, new Rectangle(0, 0, hwnd.Width, hwnd.Height), Border3DStyle.Sunken); g.Dispose(); break; } case FormBorderStyle.FixedSingle: { Graphics g; g = Graphics.FromHwnd(hwnd.whole_window); ControlPaint.DrawBorder(g, new Rectangle(0, 0, hwnd.Width, hwnd.Height), Color.Black, ButtonBorderStyle.Solid); g.Dispose(); break; } } } [DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] static extern int GetEventParameter (IntPtr eventref, uint name, uint type, IntPtr outtype, uint size, IntPtr outsize, ref IntPtr data); [DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] static extern int SetEventParameter (IntPtr eventref, uint name, uint type, uint size, ref short data); [DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] static extern int HIViewGetBounds (IntPtr handle, ref HIRect rect); [DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] static extern int HIViewGetFrame (IntPtr handle, ref HIRect rect); [DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] extern static bool HIViewIsVisible (IntPtr vHnd); [DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] static extern int CGContextSetRGBFillColor (IntPtr cgContext, float r, float g, float b, float alpha); [DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")] static extern int CGContextFillRect (IntPtr context, HIRect rect); } }