[473] | 1 | 'Classes/ActiveBasic/Windows/UI/Control.ab
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| 2 |
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[545] | 3 | #require <Classes/ActiveBasic/Windows/UI/EventArgs.ab>
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[473] | 4 |
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| 5 | Namespace ActiveBasic
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| 6 | Namespace Windows
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| 7 | Namespace UI
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| 8 |
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[542] | 9 | 'Namespace Detail
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| 10 | ' TypeDef PTrackMouseEvent = *Function(ByRef tme As TRACKMOUSEEVENT) As BOOL
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| 11 | 'End Namespace
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| 12 |
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[473] | 13 | Class Control
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| 14 | Public
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| 15 | Sub Control()
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| 16 | End Sub
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| 17 |
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| 18 | Virtual Sub ~Control()
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| 19 | End Sub
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| 20 |
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[542] | 21 | Function Handle() As HWND
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| 22 | Handle = hwnd
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[473] | 23 | End Function
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| 24 |
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| 25 | Static Function FromHWnd(hwnd As HWND) As Control
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| 26 | FromHWnd = Nothing
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| 27 | If IsWindow(hwnd) Then
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| 28 | FromHWnd = FromHWndCore(hwnd)
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| 29 | End If
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| 30 | End Function
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| 31 |
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| 32 | Private
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| 33 | Static Function FromHWndCore(hwnd As HWND) As Control
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| 34 | If GetClassLongPtr(hwnd, GCW_ATOM) = atom Then
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| 35 | Dim gchValue = GetProp(hwnd, PropertyInstance As ULONG_PTR As PCTSTR) As ULONG_PTR
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| 36 | If gchValue <> 0 Then
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| 37 | Dim gch = System.Runtime.InteropServices.GCHandle.FromIntPtr(gchValue)
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| 38 | FromHWndCore = gch.Target As Control
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| 39 | Exit Function
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| 40 | End If
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| 41 | End If
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| 42 | End Function
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| 43 |
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| 44 | '--------------------------------
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[544] | 45 | ' ウィンドウ作成
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[473] | 46 | /*
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| 47 | Function Create(
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| 48 | parent As HWND,
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| 49 | rect As RECT,
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| 50 | name As String,
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| 51 | style As DWord,
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| 52 | exStyle = 0 As DWord,
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| 53 | menu = 0 As HMENU) As HWND
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| 54 | */
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[542] | 55 |
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[473] | 56 | Public
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| 57 | Function Create() As Boolean
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| 58 | Dim cs As CREATESTRUCT
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| 59 | cs.hInstance = hInstance
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| 60 | cs.lpszClass = (atom As ULONG_PTR) As LPCTSTR
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| 61 | GetCreateStruct(cs)
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| 62 | Create = createImpl(cs)
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| 63 | End Function
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| 64 |
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| 65 | Protected
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| 66 | Abstract Sub GetCreateStruct(ByRef cs As CREATESTRUCT)
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| 67 |
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| 68 | Function createImpl(ByRef cs As CREATESTRUCT) As Boolean
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| 69 | Imports System.Runtime.InteropServices
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| 70 |
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| 71 | Dim gch = GCHandle.Alloc(This)
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| 72 | TlsSetValue(tlsIndex, GCHandle.ToIntPtr(gch) As VoidPtr)
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| 73 |
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[542] | 74 | StartWndProc()
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| 75 |
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[473] | 76 | With cs
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| 77 | Dim hwnd = CreateWindowEx(.dwExStyle, .lpszClass, .lpszName, .style,
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| 78 | .x, .y, .cx, .cy, .hwndParent, .hMenu, .hInstance, .lpCreateParams)
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| 79 | createImpl = hwnd <> 0
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| 80 | End With
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| 81 | End Function
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| 82 |
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| 83 | '--------------------------------
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| 84 | ' ウィンドウプロシージャ
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| 85 | 'Protected
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| 86 | Public
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| 87 | Virtual Function WndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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[542] | 88 | Dim h = Nothing As MessageEventHandler
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| 89 | Dim b = messageMap.TryGetValue(Hex$(msg), h)
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| 90 | If b Then
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| 91 | If Not IsNothing(h) Then
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| 92 | Dim a = New MessageEventArgs(hwnd, msg, wp, lp)
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| 93 | h(This, a)
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| 94 | WndProc = a.LResult
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| 95 | Exit Function
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| 96 | End If
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| 97 | End If
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| 98 | WndProc = DefWndProc(msg, wp, lp)
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[473] | 99 | End Function
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| 100 |
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| 101 | Virtual Function DefWndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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[542] | 102 | DefWndProc = DefWindowProc(hwnd, msg, wp, lp)
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[473] | 103 | End Function
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| 104 |
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| 105 | Private
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[544] | 106 | Static Function makeKeysFormMsg(e As MessageEventArgs) As Keys
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[473] | 107 | Dim t As DWord
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[544] | 108 | t = e.WParam And Keys.KeyCode
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[473] | 109 | t Or= (GetKeyState(VK_SHIFT) As Word And &h8000) << 1
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| 110 | t Or= (GetKeyState(VK_CONTROL) As Word And &h8000) << 2
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| 111 | t Or= (GetKeyState(VK_MENU) As Word And &h8000) << 3
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[544] | 112 | makeKeysFormMsg = t As Keys
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[473] | 113 | End Function
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| 114 |
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[544] | 115 | Static Function makeMouseEventFromMsg(e As MessageEventArgs) As MouseEventArgs
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| 116 | Dim wp = e.WParam
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| 117 | Dim lp = e.LParam
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| 118 | makeMouseEventFromMsg = New MouseEventArgs(LOWORD(wp) As MouseButtons, 1, GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 0)
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[542] | 119 | End Function
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[473] | 120 |
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[542] | 121 | /*!
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| 122 | @brief 最初にウィンドウプロシージャが呼ばれるときに実行される関数
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| 123 | ここでは、主なメッセージハンドラの登録を行っている。
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| 124 | @date 2008/07/11
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| 125 | */
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| 126 | Sub StartWndProc()
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| 127 | Dim t = This '#177対策
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| 128 | AddMessageEvent(WM_ERASEBKGND, AddressOf(t.OnEraseBackground))
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| 129 | Dim md = New MessageEventHandler(AddressOf(t.OnMouseDownBase))
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| 130 | AddMessageEvent(WM_LBUTTONDOWN, md)
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| 131 | AddMessageEvent(WM_RBUTTONDOWN, md)
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| 132 | AddMessageEvent(WM_MBUTTONDOWN, md)
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| 133 | AddMessageEvent(WM_XBUTTONDOWN, md)
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| 134 | Dim mu = New MessageEventHandler(AddressOf(t.OnMouseUpBase))
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| 135 | AddMessageEvent(WM_LBUTTONUP, mu)
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| 136 | AddMessageEvent(WM_RBUTTONUP, mu)
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| 137 | AddMessageEvent(WM_MBUTTONUP, mu)
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| 138 | AddMessageEvent(WM_XBUTTONUP, mu)
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| 139 | Dim mb = New MessageEventHandler(AddressOf(t.OnMouseDblClkBase))
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| 140 | AddMessageEvent(WM_LBUTTONDBLCLK, mu)
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| 141 | AddMessageEvent(WM_RBUTTONDBLCLK, mu)
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| 142 | AddMessageEvent(WM_MBUTTONDBLCLK, mu)
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| 143 | AddMessageEvent(WM_XBUTTONDBLCLK, mu)
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[544] | 144 |
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| 145 | AddMessageEvent(WM_MOUSELEAVE, AddressOf(t.OnMouseLeaveBase))
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[542] | 146 | AddMessageEvent(WM_PAINT, AddressOf(t.OnPaintBase))
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[544] | 147 | AddMessageEvent(WM_KEYDOWN, AddressOf(t.OnKeyDownBase))
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| 148 | ' AddMessageEvent(WM_CHAR, AddressOf(t.OnChar))
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| 149 | AddMessageEvent(WM_CREATE, AddressOf(t.OnCreateBase))
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[542] | 150 | End Sub
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[473] | 151 |
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[542] | 152 | Sub OnEraseBackground(sender As Object, e As MessageEventArgs)
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| 153 | Dim rc As RECT
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| 154 | Dim r = GetClientRect(hwnd, rc)
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| 155 | FillRect(e.WParam As HDC, rc, (COLOR_3DFACE + 1) As HBRUSH)
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| 156 | e.LResult = TRUE
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| 157 | End Sub
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[473] | 158 |
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[542] | 159 | Sub OnMouseDownBase(sender As Object, e As MessageEventArgs)
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[544] | 160 | OnMouseDown(makeMouseEventFromMsg(e))
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[542] | 161 | End Sub
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| 162 |
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| 163 | Sub OnMouseUpBase(sender As Object, e As MessageEventArgs)
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[544] | 164 | Dim me = makeMouseEventFromMsg(e)
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[542] | 165 | If doubleClickFired = False Then
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[544] | 166 | ' OnClick(System.EventArgs.Empty)
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[542] | 167 | OnMouseClick(me)
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| 168 | doubleClickFired = False
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| 169 | End If
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| 170 | OnMouseUp(me)
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| 171 | End Sub
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| 172 |
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| 173 | Sub OnMouseDblClkBase(sender As Object, e As MessageEventArgs)
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[544] | 174 | Dim me = makeMouseEventFromMsg(e)
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[542] | 175 | doubleClickFired = True
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| 176 | OnMouseDown(me)
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[544] | 177 | ' OnDoubleClick(System.EventArgs.Empty)
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[542] | 178 | OnMouseDoubleClick(me)
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| 179 | End Sub
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| 180 |
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| 181 | Sub OnMouseMoveBase(sender As Object, e As MessageEventArgs)
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[544] | 182 | Dim me = makeMouseEventFromMsg(e)
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[542] | 183 | If mouseEntered Then
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| 184 | OnMouseMove(me)
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| 185 | Else
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| 186 | mouseEntered = True
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| 187 | OnMouseEnter(me)
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| 188 | End If
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| 189 | End Sub
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| 190 |
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[544] | 191 | Sub OnMouseLeaveBase(sender As Object, e As MessageEventArgs)
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| 192 | Dim me = makeMouseEventFromMsg(e)
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| 193 | OnMouseLeave(me)
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| 194 | mouseEntered = False
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| 195 | End Sub
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| 196 |
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[542] | 197 | Sub OnPaintBase(sender As Object, e As MessageEventArgs)
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| 198 | Dim ps As PAINTSTRUCT
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| 199 | BeginPaint(hwnd, ps)
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[544] | 200 | Try
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| 201 | OnPaintDC(New PaintDCEventArgs(ps.hdc, ps.rcPaint))
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| 202 | Finally
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[542] | 203 | EndPaint(hwnd, ps)
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[544] | 204 | End Try
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[542] | 205 | End Sub
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| 206 |
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[544] | 207 | Sub OnKeyDownBase(sender As Object, e As MessageEventArgs)
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| 208 | OnKeyDown(New KeyEventArgs(makeKeysFormMsg(e)))
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| 209 | End Sub
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[542] | 210 |
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[544] | 211 | Sub OnKeyUpBase(sender As Object, e As MessageEventArgs)
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| 212 | OnKeyUp(New KeyEventArgs(makeKeysFormMsg(e)))
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| 213 | End Sub
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| 214 |
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| 215 | ' コメントアウト解除のときはStartWndProcのコメントアウト解除も忘れないこと
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| 216 | ' Sub OnChar(sender As Object, e As MessageEventArgs)
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| 217 | ' OnKeyPress(New KeyPressEventArgs(e.WParam As Char))
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| 218 | ' End Sub
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| 219 |
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| 220 | Sub OnCreateBase(sender As Object, e As MessageEventArgs)
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| 221 | OnCreate(New CreateEventArgs(e.LParam As *CREATESTRUCT))
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| 222 | End Sub
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| 223 |
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[542] | 224 | messageMap As System.Collections.Generic.Dictionary<Object /*DWord*/, MessageEventHandler>
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| 225 |
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| 226 | Public
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[473] | 227 | /*!
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[542] | 228 | @biref メッセージイベントハンドラを登録する。
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[473] | 229 | @date 2007/12/04
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| 230 | */
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[542] | 231 | Sub AddMessageEvent(message As DWord, h As MessageEventHandler)
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| 232 | If Not IsNothing(h) Then
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| 233 | If IsNothing(messageMap) Then
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| 234 | messageMap = New System.Collections.Generic.Dictionary<Object, MessageEventHandler>
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| 235 | End If
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| 236 | Dim msg = Hex$(message)
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| 237 | Dim m = Nothing As MessageEventHandler
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| 238 | If messageMap.TryGetValue(msg, m) Then
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| 239 | messageMap.Item[msg] = m + h
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| 240 | Else
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| 241 | messageMap.Item[msg] = h
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| 242 | End If
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| 243 | End If
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[473] | 244 | End Sub
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| 245 |
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[542] | 246 | /*!
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| 247 | @biref メッセージイベントハンドラ登録を解除する。
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| 248 | @date 2007/12/04
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| 249 | */
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| 250 | Sub RemoveMessageEvent(message As DWord, a As MessageEventHandler)
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| 251 | If Not IsNothing(a) Then
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| 252 | If Not IsNothing(messageMap) Then
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[545] | 253 | Dim msg = Hex$(message)
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[542] | 254 | Dim m = messageMap.Item[msg]
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| 255 | If Not IsNothing(m) Then
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| 256 | messageMap.Item[msg] = m - a
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| 257 | End If
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| 258 | End If
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| 259 | End If
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| 260 | End Sub
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| 261 |
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| 262 | '--------------------------------
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| 263 | ' ウィンドウメッセージ処理
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| 264 |
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| 265 |
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[473] | 266 | '--------
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| 267 | 'イベント
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| 268 |
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| 269 | #include "ControlEvent.sbp"
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| 270 |
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| 271 | '--------------------------------
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[544] | 272 | ' インスタンスメンバ変数
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[473] | 273 | Private
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[542] | 274 | hwnd As HWND
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| 275 | /*!
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| 276 | @brief マウスカーソルがクライアント領域に入っているかどうかのフラグ
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| 277 | 外から中に入ってきたときにMouseEnterイベントを発生させるために用意している。
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| 278 | */
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| 279 | mouseEntered As Boolean
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| 280 | /*!
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| 281 | @brief ダブルクリックが起こったかどうかのフラグ
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| 282 | Click/MouseClickイベントのために用意している。
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| 283 | @date 2008/07/12
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| 284 | */
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| 285 | doubleClickFired As Boolean
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[473] | 286 |
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| 287 | '--------------------------------
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[544] | 288 | ' 初期ウィンドウクラス
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[473] | 289 | Private
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| 290 | Static Function WndProcFirst(hwnd As HWND, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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| 291 | Imports System.Runtime.InteropServices
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| 292 |
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| 293 | Dim rThis = Control.FromHWndCore(hwnd)
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| 294 | If IsNothing(rThis) Then
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| 295 | Dim gchValue = TlsGetValue(tlsIndex) As LONG_PTR
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| 296 | TlsSetValue(tlsIndex, 0)
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| 297 | If gchValue = 0 Then
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| 298 | Goto *InstanceIsNotFound
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| 299 | End If
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| 300 | Dim gch = GCHandle.FromIntPtr(gchValue)
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| 301 | rThis = gch.Target As Control
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| 302 | ' ウィンドウが作られて最初にWndProcFirstが呼ばれたとき
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| 303 |
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| 304 | If IsNothing(rThis) Then
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| 305 | Goto *InstanceIsNotFound
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| 306 | End If
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[542] | 307 | rThis.hwnd = hwnd
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| 308 | SetProp(hwnd, PropertyInstance As ULONG_PTR As PCSTR, gchValue As HANDLE)
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[473] | 309 | End If
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| 310 | WndProcFirst = rThis.WndProc(msg, wp, lp)
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| 311 | If msg = WM_NCDESTROY Then
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| 312 | Dim gchValue = GetProp(hwnd, PropertyInstance As ULONG_PTR As PCTSTR) As ULONG_PTR
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| 313 | If gchValue <> 0 Then
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| 314 | Dim gch = GCHandle.FromIntPtr(gchValue)
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| 315 | gch.Free()
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| 316 | End If
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| 317 | End If
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| 318 |
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| 319 | Exit Function
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| 320 |
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| 321 | *InstanceIsNotFound
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| 322 | OutputDebugString("ActiveBasic.Windows.UI.Control.WndProcFirst: The attached instance is not found.")
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| 323 | WndProcFirst = DefWindowProc(hwnd, msg, wp, lp)
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| 324 | End Function
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[542] | 325 |
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[473] | 326 | ' Static Const WM_CONTROL_INVOKE = WM_USER + 0 As DWord
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| 327 | ' Static Const WM_CONTROL_BEGININVOKE = WM_USER + 1 As DWord
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| 328 |
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| 329 | '--------------------------------
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[542] | 330 | ' その他の補助関数
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| 331 | Private
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| 332 | ' Sub tracMouseEvent()
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| 333 | /* If pTrackMouseEvent <> 0 Then
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| 334 | Dim tme As TRACKMOUSEEVENT
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| 335 | With tme
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| 336 | .cbSize = Len(tme)
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| 337 | .dwFlags = TME_HOVER Or TME_LEAVE
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| 338 | .hwndTrack = wnd
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| 339 | .dwHoverTime = HOVER_DEFAULT
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| 340 | End With
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| 341 | pTrackMouseEvent(tme)
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| 342 | End If
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| 343 | */ 'End Sub
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| 344 |
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| 345 | '--------------------------------
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[544] | 346 | ' 初期化終了関連(特にウィンドウクラス)
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[542] | 347 | Private
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[473] | 348 | 'ウィンドウ作成時にウィンドウプロシージャへThisを伝えるためのもの
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| 349 | Static tlsIndex As DWord
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| 350 |
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| 351 | Static hInstance As HINSTANCE
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| 352 | Static atom As ATOM
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[542] | 353 | Static hmodComctl As HMODULE
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| 354 | ' Static pTrackMouseEvent As PTrackMouseEvent
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[473] | 355 |
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| 356 | Static Const WindowClassName = "ActiveBasic.Windows.UI.Control"
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| 357 | Static Const PropertyInstance = 0 As ATOM
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| 358 | Public
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| 359 | Static Sub Initialize(hinst As HINSTANCE)
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| 360 | tlsIndex = TlsAlloc()
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| 361 | hInstance = hinst
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[542] | 362 | ' hmodComctl = LoadLibrary("comctl32.dll")
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| 363 | ' pTrackMouseEvent = GetProcAddress(hmodComctl, ToMBStr("_TrackMouseEvent"))
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[473] | 364 |
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| 365 | Dim PropertyInstanceString = WindowClassName + " " + Hex$(GetCurrentProcessId())
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| 366 | PropertyInstance = GlobalAddAtom(ToTCStr(PropertyInstanceString))
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| 367 |
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| 368 | Dim wcx As WNDCLASSEX
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| 369 | With wcx
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| 370 | .cbSize = Len (wcx)
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| 371 | .style = CS_HREDRAW Or CS_VREDRAW Or CS_DBLCLKS
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| 372 | .lpfnWndProc = AddressOf (WndProcFirst)
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| 373 | .cbClsExtra = 0
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| 374 | .cbWndExtra = 0
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| 375 | .hInstance = hinst
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| 376 | .hIcon = 0
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| 377 | .hCursor = LoadImage(0, MAKEINTRESOURCE(IDC_ARROW), IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE Or LR_SHARED) As HCURSOR
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| 378 | .hbrBackground = 0
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| 379 | .lpszMenuName = 0
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| 380 | .lpszClassName = ToTCStr(WindowClassName)
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| 381 | .hIconSm = 0
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| 382 | End With
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| 383 | atom = RegisterClassEx(wcx)
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| 384 | If atom = 0 Then
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| 385 | Dim buf[1023] As TCHAR
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| 386 | wsprintf(buf, Ex"ActiveBasic.Windows.UI.Control.Control: RegisterClasseEx failed. Error code: &h%08X\r\n", GetLastError())
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| 387 | OutputDebugString(buf)
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| 388 | Debug
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| 389 | ExitThread(0)
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| 390 | End If
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| 391 | End Sub
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| 392 |
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| 393 | Static Sub Uninitialize()
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[542] | 394 | If atom <> 0 Then
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| 395 | UnregisterClass(atom As ULONG_PTR As PCSTR, hInstance)
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| 396 | End If
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| 397 | If tlsIndex <> 0 And tlsIndex <> &hffffffff Then
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| 398 | TlsFree(tlsIndex)
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| 399 | End If
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| 400 | ' If hmodComctl <> 0 Then
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| 401 | ' FreeLibrary(hmodComctl)
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| 402 | ' End If
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| 403 | If PropertyInstance <> 0 Then
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| 404 | GlobalDeleteAtom(PropertyInstance)
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| 405 | End If
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[473] | 406 | End Sub
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| 407 |
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| 408 | End Class
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| 409 |
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[542] | 410 | Class Form '仮
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[473] | 411 | Inherits Control
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| 412 | Protected
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| 413 | Override Sub GetCreateStruct(ByRef cs As CREATESTRUCT)
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| 414 | With cs
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| 415 | .lpCreateParams = 0
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| 416 | '.hInstance
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| 417 | .hMenu = 0
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| 418 | .hwndParent = 0
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| 419 | .cy = CW_USEDEFAULT
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| 420 | .cx = CW_USEDEFAULT
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| 421 | .y = CW_USEDEFAULT
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| 422 | .x = CW_USEDEFAULT
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| 423 | .style = WS_OVERLAPPEDWINDOW
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| 424 | .lpszName = ""
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| 425 | '.lpszClass
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| 426 | .dwExStyle = 0
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| 427 | End With
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| 428 | End Sub
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[542] | 429 | Public
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| 430 |
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[473] | 431 | Override Function WndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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| 432 | WndProc = 0
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| 433 | Select Case msg
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| 434 | Case Else
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| 435 | WndProc = Super.WndProc(msg, wp, lp)
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| 436 | End Select
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| 437 | End Function
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| 438 | End Class
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| 439 |
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| 440 | End Namespace 'UI
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| 441 | End Namespace 'Widnows
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| 442 | End Namespace 'ActiveBasic
|
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| 443 |
|
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| 444 | '----------
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| 445 | 'テスト実行用
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| 446 |
|
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[545] | 447 | Imports ActiveBasic.Windows.UI
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[473] | 448 |
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[542] | 449 | 'OleInitialize()
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| 450 | Control.Initialize(GetModuleHandle(0))
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| 451 |
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| 452 | Class MyForm
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| 453 | Inherits Form
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[473] | 454 | Public
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[545] | 455 | Sub MyForm()
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[544] | 456 | Dim f = This
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| 457 | f.AddMessageEvent(WM_DESTROY, AddressOf (f.Destory))
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| 458 | f.AddPaintDC(AddressOf (f.Paint))
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| 459 | End Sub
|
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| 460 |
|
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| 461 | Sub Destory(sender As Object, e As EventArgs)
|
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| 462 | OutputDebugString(Ex"Destory\r\n")
|
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[542] | 463 | PostQuitMessage(0)
|
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| 464 | End Sub
|
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[544] | 465 |
|
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| 466 | Sub Paint(sender As Object, e As PaintDCEventArgs)
|
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| 467 | TextOut(e.Handle, 10, 10, "Hello world!", 12)
|
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| 468 | End Sub
|
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[473] | 469 | End Class
|
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| 470 |
|
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[542] | 471 | Dim f = New MyForm
|
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[473] | 472 | f.Create()
|
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[542] | 473 | ShowWindow(f.Handle, SW_SHOW)
|
---|
[473] | 474 |
|
---|
[542] | 475 | Dim m As MSG
|
---|
| 476 | Do
|
---|
| 477 | Dim ret = GetMessage(m, 0, 0, 0)
|
---|
| 478 | If ret = 0 Then
|
---|
| 479 | Exit Do
|
---|
| 480 | ElseIf ret = -1 Then
|
---|
| 481 | ExitProcess(-1)
|
---|
| 482 | End If
|
---|
| 483 |
|
---|
| 484 | TranslateMessage(m)
|
---|
| 485 | DispatchMessage(m)
|
---|
| 486 | Loop
|
---|
| 487 |
|
---|
| 488 | f = Nothing
|
---|
| 489 | System.GC.Collect()
|
---|
| 490 |
|
---|
| 491 | Control.Uninitialize()
|
---|
| 492 | 'OleUninitialize()
|
---|
| 493 |
|
---|
| 494 | End
|
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