[473] | 1 | 'Classes/ActiveBasic/Windows/UI/Control.ab
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| 2 |
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| 3 | #require <Classes/ActiveBasic/Windows/UI/Forms/EventArgs.ab>
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| 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 | Namespace Forms
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| 9 |
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[542] | 10 | 'Namespace Detail
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| 11 | ' TypeDef PTrackMouseEvent = *Function(ByRef tme As TRACKMOUSEEVENT) As BOOL
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| 12 | 'End Namespace
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| 13 |
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[473] | 14 | Class Control
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| 15 | Public
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| 16 | Sub Control()
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| 17 | End Sub
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| 18 |
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| 19 | Virtual Sub ~Control()
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| 20 | End Sub
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| 21 |
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[542] | 22 | Function Handle() As HWND
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| 23 | Handle = hwnd
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[473] | 24 | End Function
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| 25 |
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| 26 | Static Function FromHWnd(hwnd As HWND) As Control
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| 27 | FromHWnd = Nothing
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| 28 | If IsWindow(hwnd) Then
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| 29 | FromHWnd = FromHWndCore(hwnd)
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| 30 | End If
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| 31 | End Function
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| 32 |
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| 33 | Private
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| 34 | Static Function FromHWndCore(hwnd As HWND) As Control
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| 35 | If GetClassLongPtr(hwnd, GCW_ATOM) = atom Then
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| 36 | Dim gchValue = GetProp(hwnd, PropertyInstance As ULONG_PTR As PCTSTR) As ULONG_PTR
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| 37 | If gchValue <> 0 Then
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| 38 | Dim gch = System.Runtime.InteropServices.GCHandle.FromIntPtr(gchValue)
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| 39 | FromHWndCore = gch.Target As Control
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| 40 | Exit Function
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| 41 | End If
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| 42 | End If
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| 43 | End Function
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| 44 |
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| 45 | '--------------------------------
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[544] | 46 | ' ウィンドウ作成
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[473] | 47 | /*
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| 48 | Function Create(
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| 49 | parent As HWND,
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| 50 | rect As RECT,
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| 51 | name As String,
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| 52 | style As DWord,
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| 53 | exStyle = 0 As DWord,
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| 54 | menu = 0 As HMENU) As HWND
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| 55 | */
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[542] | 56 |
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[473] | 57 | Public
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| 58 | Function Create() As Boolean
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| 59 | Dim cs As CREATESTRUCT
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| 60 | cs.hInstance = hInstance
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| 61 | cs.lpszClass = (atom As ULONG_PTR) As LPCTSTR
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| 62 | GetCreateStruct(cs)
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| 63 | Create = createImpl(cs)
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| 64 | End Function
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| 65 |
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| 66 | Protected
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| 67 | Abstract Sub GetCreateStruct(ByRef cs As CREATESTRUCT)
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| 68 |
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| 69 | Function createImpl(ByRef cs As CREATESTRUCT) As Boolean
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| 70 | Imports System.Runtime.InteropServices
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| 71 |
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| 72 | Dim gch = GCHandle.Alloc(This)
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| 73 | TlsSetValue(tlsIndex, GCHandle.ToIntPtr(gch) As VoidPtr)
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| 74 |
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[542] | 75 | StartWndProc()
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| 76 |
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[473] | 77 | With cs
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| 78 | Dim hwnd = CreateWindowEx(.dwExStyle, .lpszClass, .lpszName, .style,
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| 79 | .x, .y, .cx, .cy, .hwndParent, .hMenu, .hInstance, .lpCreateParams)
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| 80 | createImpl = hwnd <> 0
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| 81 | End With
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| 82 | End Function
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| 83 |
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| 84 | '--------------------------------
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| 85 | ' ウィンドウプロシージャ
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| 86 | 'Protected
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| 87 | Public
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| 88 | Virtual Function WndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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[542] | 89 | Dim h = Nothing As MessageEventHandler
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| 90 | Dim b = messageMap.TryGetValue(Hex$(msg), h)
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| 91 | If b Then
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| 92 | If Not IsNothing(h) Then
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| 93 | Dim a = New MessageEventArgs(hwnd, msg, wp, lp)
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| 94 | h(This, a)
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| 95 | WndProc = a.LResult
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| 96 | Exit Function
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| 97 | End If
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| 98 | End If
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| 99 | WndProc = DefWndProc(msg, wp, lp)
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[473] | 100 | End Function
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| 101 |
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| 102 | Virtual Function DefWndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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[542] | 103 | DefWndProc = DefWindowProc(hwnd, msg, wp, lp)
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[473] | 104 | End Function
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| 105 |
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| 106 | Private
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[544] | 107 | Static Function makeKeysFormMsg(e As MessageEventArgs) As Keys
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[473] | 108 | Dim t As DWord
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[544] | 109 | t = e.WParam And Keys.KeyCode
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[473] | 110 | t Or= (GetKeyState(VK_SHIFT) As Word And &h8000) << 1
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| 111 | t Or= (GetKeyState(VK_CONTROL) As Word And &h8000) << 2
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| 112 | t Or= (GetKeyState(VK_MENU) As Word And &h8000) << 3
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[544] | 113 | makeKeysFormMsg = t As Keys
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[473] | 114 | End Function
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| 115 |
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[544] | 116 | Static Function makeMouseEventFromMsg(e As MessageEventArgs) As MouseEventArgs
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| 117 | Dim wp = e.WParam
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| 118 | Dim lp = e.LParam
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| 119 | makeMouseEventFromMsg = New MouseEventArgs(LOWORD(wp) As MouseButtons, 1, GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 0)
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[542] | 120 | End Function
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[473] | 121 |
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[542] | 122 | /*!
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| 123 | @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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| 124 | 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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| 125 | @date 2008/07/11
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| 126 | */
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| 127 | Sub StartWndProc()
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| 128 | Dim t = This '#177対策
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| 129 | AddMessageEvent(WM_ERASEBKGND, AddressOf(t.OnEraseBackground))
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| 130 | Dim md = New MessageEventHandler(AddressOf(t.OnMouseDownBase))
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| 131 | AddMessageEvent(WM_LBUTTONDOWN, md)
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| 132 | AddMessageEvent(WM_RBUTTONDOWN, md)
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| 133 | AddMessageEvent(WM_MBUTTONDOWN, md)
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| 134 | AddMessageEvent(WM_XBUTTONDOWN, md)
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| 135 | Dim mu = New MessageEventHandler(AddressOf(t.OnMouseUpBase))
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| 136 | AddMessageEvent(WM_LBUTTONUP, mu)
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| 137 | AddMessageEvent(WM_RBUTTONUP, mu)
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| 138 | AddMessageEvent(WM_MBUTTONUP, mu)
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| 139 | AddMessageEvent(WM_XBUTTONUP, mu)
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| 140 | Dim mb = New MessageEventHandler(AddressOf(t.OnMouseDblClkBase))
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| 141 | AddMessageEvent(WM_LBUTTONDBLCLK, mu)
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| 142 | AddMessageEvent(WM_RBUTTONDBLCLK, mu)
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| 143 | AddMessageEvent(WM_MBUTTONDBLCLK, mu)
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| 144 | AddMessageEvent(WM_XBUTTONDBLCLK, mu)
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[544] | 145 |
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| 146 | AddMessageEvent(WM_MOUSELEAVE, AddressOf(t.OnMouseLeaveBase))
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[542] | 147 | AddMessageEvent(WM_PAINT, AddressOf(t.OnPaintBase))
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[544] | 148 | AddMessageEvent(WM_KEYDOWN, AddressOf(t.OnKeyDownBase))
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| 149 | ' AddMessageEvent(WM_CHAR, AddressOf(t.OnChar))
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| 150 | AddMessageEvent(WM_CREATE, AddressOf(t.OnCreateBase))
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[542] | 151 | End Sub
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[473] | 152 |
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[542] | 153 | Sub OnEraseBackground(sender As Object, e As MessageEventArgs)
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| 154 | Dim rc As RECT
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| 155 | Dim r = GetClientRect(hwnd, rc)
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| 156 | FillRect(e.WParam As HDC, rc, (COLOR_3DFACE + 1) As HBRUSH)
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| 157 | e.LResult = TRUE
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| 158 | End Sub
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[473] | 159 |
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[542] | 160 | Sub OnMouseDownBase(sender As Object, e As MessageEventArgs)
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[544] | 161 | OnMouseDown(makeMouseEventFromMsg(e))
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[542] | 162 | End Sub
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| 163 |
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| 164 | Sub OnMouseUpBase(sender As Object, e As MessageEventArgs)
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[544] | 165 | Dim me = makeMouseEventFromMsg(e)
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[542] | 166 | If doubleClickFired = False Then
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[544] | 167 | ' OnClick(System.EventArgs.Empty)
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[542] | 168 | OnMouseClick(me)
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| 169 | doubleClickFired = False
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| 170 | End If
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| 171 | OnMouseUp(me)
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| 172 | End Sub
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| 173 |
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| 174 | Sub OnMouseDblClkBase(sender As Object, e As MessageEventArgs)
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[544] | 175 | Dim me = makeMouseEventFromMsg(e)
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[542] | 176 | doubleClickFired = True
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| 177 | OnMouseDown(me)
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[544] | 178 | ' OnDoubleClick(System.EventArgs.Empty)
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[542] | 179 | OnMouseDoubleClick(me)
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| 180 | End Sub
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| 181 |
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| 182 | Sub OnMouseMoveBase(sender As Object, e As MessageEventArgs)
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[544] | 183 | Dim me = makeMouseEventFromMsg(e)
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[542] | 184 | If mouseEntered Then
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| 185 | OnMouseMove(me)
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| 186 | Else
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| 187 | mouseEntered = True
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| 188 | OnMouseEnter(me)
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| 189 | End If
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| 190 | End Sub
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| 191 |
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[544] | 192 | Sub OnMouseLeaveBase(sender As Object, e As MessageEventArgs)
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| 193 | Dim me = makeMouseEventFromMsg(e)
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| 194 | OnMouseLeave(me)
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| 195 | mouseEntered = False
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| 196 | End Sub
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| 197 |
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[542] | 198 | Sub OnPaintBase(sender As Object, e As MessageEventArgs)
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| 199 | Dim ps As PAINTSTRUCT
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| 200 | BeginPaint(hwnd, ps)
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[544] | 201 | Try
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| 202 | OnPaintDC(New PaintDCEventArgs(ps.hdc, ps.rcPaint))
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| 203 | Finally
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[542] | 204 | EndPaint(hwnd, ps)
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[544] | 205 | End Try
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[542] | 206 | End Sub
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| 207 |
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[544] | 208 | Sub OnKeyDownBase(sender As Object, e As MessageEventArgs)
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| 209 | OnKeyDown(New KeyEventArgs(makeKeysFormMsg(e)))
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| 210 | End Sub
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[542] | 211 |
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[544] | 212 | Sub OnKeyUpBase(sender As Object, e As MessageEventArgs)
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| 213 | OnKeyUp(New KeyEventArgs(makeKeysFormMsg(e)))
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| 214 | End Sub
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| 215 |
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| 216 | ' 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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| 217 | ' Sub OnChar(sender As Object, e As MessageEventArgs)
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| 218 | ' OnKeyPress(New KeyPressEventArgs(e.WParam As Char))
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| 219 | ' End Sub
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| 220 |
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| 221 | Sub OnCreateBase(sender As Object, e As MessageEventArgs)
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| 222 | OnCreate(New CreateEventArgs(e.LParam As *CREATESTRUCT))
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| 223 | End Sub
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| 224 |
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[542] | 225 | messageMap As System.Collections.Generic.Dictionary<Object /*DWord*/, MessageEventHandler>
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| 226 |
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| 227 | Public
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[473] | 228 | /*!
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[542] | 229 | @biref メッセージイベントハンドラを登録する。
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[473] | 230 | @date 2007/12/04
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| 231 | */
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[542] | 232 | Sub AddMessageEvent(message As DWord, h As MessageEventHandler)
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| 233 | If Not IsNothing(h) Then
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| 234 | If IsNothing(messageMap) Then
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| 235 | messageMap = New System.Collections.Generic.Dictionary<Object, MessageEventHandler>
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| 236 | End If
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| 237 | Dim msg = Hex$(message)
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| 238 | Dim m = Nothing As MessageEventHandler
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| 239 | If messageMap.TryGetValue(msg, m) Then
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| 240 | messageMap.Item[msg] = m + h
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| 241 | Else
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| 242 | messageMap.Item[msg] = h
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| 243 | End If
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| 244 | End If
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[473] | 245 | End Sub
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| 246 |
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[542] | 247 | /*!
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| 248 | @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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| 249 | @date 2007/12/04
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| 250 | */
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| 251 | Sub RemoveMessageEvent(message As DWord, a As MessageEventHandler)
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| 252 | If Not IsNothing(a) Then
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| 253 | If Not IsNothing(messageMap) Then
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| 254 | Dim msg = Nothing As Object : msg = New System.UInt32(message)
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| 255 | Dim m = messageMap.Item[msg]
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| 256 | If Not IsNothing(m) Then
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| 257 | messageMap.Item[msg] = m - a
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| 258 | End If
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| 259 | End If
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| 260 | End If
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| 261 | End Sub
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| 262 |
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| 263 | '--------------------------------
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| 264 | ' ウィンドウメッセージ処理
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| 265 |
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| 266 |
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[473] | 267 | '--------
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| 268 | 'イベント
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| 269 |
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| 270 | #include "ControlEvent.sbp"
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| 271 |
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| 272 | '--------------------------------
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[544] | 273 | ' インスタンスメンバ変数
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[473] | 274 | Private
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[542] | 275 | hwnd As HWND
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| 276 | /*!
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| 277 | @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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| 278 | 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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| 279 | */
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| 280 | mouseEntered As Boolean
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| 281 | /*!
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| 282 | @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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| 283 | Click/MouseClickイベントのために用意している。
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| 284 | @date 2008/07/12
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| 285 | */
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| 286 | doubleClickFired As Boolean
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[473] | 287 |
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| 288 | '--------------------------------
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[544] | 289 | ' 初期ウィンドウクラス
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[473] | 290 | Private
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| 291 | Static Function WndProcFirst(hwnd As HWND, msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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| 292 | Imports System.Runtime.InteropServices
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| 293 |
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| 294 | Dim rThis = Control.FromHWndCore(hwnd)
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| 295 | If IsNothing(rThis) Then
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| 296 | Dim gchValue = TlsGetValue(tlsIndex) As LONG_PTR
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| 297 | TlsSetValue(tlsIndex, 0)
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| 298 | If gchValue = 0 Then
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| 299 | Goto *InstanceIsNotFound
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| 300 | End If
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| 301 | Dim gch = GCHandle.FromIntPtr(gchValue)
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| 302 | rThis = gch.Target As Control
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| 303 | ' 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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| 304 |
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| 305 | If IsNothing(rThis) Then
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| 306 | Goto *InstanceIsNotFound
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| 307 | End If
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[542] | 308 | rThis.hwnd = hwnd
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| 309 | SetProp(hwnd, PropertyInstance As ULONG_PTR As PCSTR, gchValue As HANDLE)
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[473] | 310 | End If
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| 311 | WndProcFirst = rThis.WndProc(msg, wp, lp)
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| 312 | If msg = WM_NCDESTROY Then
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| 313 | Dim gchValue = GetProp(hwnd, PropertyInstance As ULONG_PTR As PCTSTR) As ULONG_PTR
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| 314 | If gchValue <> 0 Then
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| 315 | Dim gch = GCHandle.FromIntPtr(gchValue)
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| 316 | gch.Free()
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| 317 | End If
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| 318 | End If
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| 319 |
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| 320 | Exit Function
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| 321 |
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| 322 | *InstanceIsNotFound
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| 323 | OutputDebugString("ActiveBasic.Windows.UI.Control.WndProcFirst: The attached instance is not found.")
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| 324 | WndProcFirst = DefWindowProc(hwnd, msg, wp, lp)
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| 325 | End Function
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[542] | 326 |
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[473] | 327 | ' Static Const WM_CONTROL_INVOKE = WM_USER + 0 As DWord
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| 328 | ' Static Const WM_CONTROL_BEGININVOKE = WM_USER + 1 As DWord
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| 329 |
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| 330 | '--------------------------------
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[542] | 331 | ' その他の補助関数
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| 332 | Private
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| 333 | ' Sub tracMouseEvent()
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| 334 | /* If pTrackMouseEvent <> 0 Then
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| 335 | Dim tme As TRACKMOUSEEVENT
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| 336 | With tme
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| 337 | .cbSize = Len(tme)
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| 338 | .dwFlags = TME_HOVER Or TME_LEAVE
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| 339 | .hwndTrack = wnd
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| 340 | .dwHoverTime = HOVER_DEFAULT
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| 341 | End With
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| 342 | pTrackMouseEvent(tme)
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| 343 | End If
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| 344 | */ 'End Sub
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| 345 |
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| 346 | '--------------------------------
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[544] | 347 | ' 初期化終了関連(特にウィンドウクラス)
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[542] | 348 | Private
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[473] | 349 | '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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| 350 | Static tlsIndex As DWord
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| 351 |
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| 352 | Static hInstance As HINSTANCE
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| 353 | Static atom As ATOM
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[542] | 354 | Static hmodComctl As HMODULE
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| 355 | ' Static pTrackMouseEvent As PTrackMouseEvent
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[473] | 356 |
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| 357 | Static Const WindowClassName = "ActiveBasic.Windows.UI.Control"
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| 358 | Static Const PropertyInstance = 0 As ATOM
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| 359 | Public
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| 360 | Static Sub Initialize(hinst As HINSTANCE)
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| 361 | tlsIndex = TlsAlloc()
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| 362 | hInstance = hinst
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[542] | 363 | ' hmodComctl = LoadLibrary("comctl32.dll")
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| 364 | ' pTrackMouseEvent = GetProcAddress(hmodComctl, ToMBStr("_TrackMouseEvent"))
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[473] | 365 |
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| 366 | Dim PropertyInstanceString = WindowClassName + " " + Hex$(GetCurrentProcessId())
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| 367 | PropertyInstance = GlobalAddAtom(ToTCStr(PropertyInstanceString))
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| 368 |
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| 369 | Dim wcx As WNDCLASSEX
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| 370 | With wcx
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| 371 | .cbSize = Len (wcx)
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| 372 | .style = CS_HREDRAW Or CS_VREDRAW Or CS_DBLCLKS
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| 373 | .lpfnWndProc = AddressOf (WndProcFirst)
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| 374 | .cbClsExtra = 0
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| 375 | .cbWndExtra = 0
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| 376 | .hInstance = hinst
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| 377 | .hIcon = 0
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| 378 | .hCursor = LoadImage(0, MAKEINTRESOURCE(IDC_ARROW), IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE Or LR_SHARED) As HCURSOR
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| 379 | .hbrBackground = 0
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| 380 | .lpszMenuName = 0
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| 381 | .lpszClassName = ToTCStr(WindowClassName)
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| 382 | .hIconSm = 0
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| 383 | End With
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| 384 | atom = RegisterClassEx(wcx)
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| 385 | If atom = 0 Then
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| 386 | Dim buf[1023] As TCHAR
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| 387 | wsprintf(buf, Ex"ActiveBasic.Windows.UI.Control.Control: RegisterClasseEx failed. Error code: &h%08X\r\n", GetLastError())
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| 388 | OutputDebugString(buf)
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| 389 | Debug
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| 390 | ExitThread(0)
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| 391 | End If
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| 392 | End Sub
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| 393 |
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| 394 | Static Sub Uninitialize()
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[542] | 395 | If atom <> 0 Then
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| 396 | UnregisterClass(atom As ULONG_PTR As PCSTR, hInstance)
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| 397 | End If
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| 398 | If tlsIndex <> 0 And tlsIndex <> &hffffffff Then
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| 399 | TlsFree(tlsIndex)
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| 400 | End If
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| 401 | ' If hmodComctl <> 0 Then
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| 402 | ' FreeLibrary(hmodComctl)
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| 403 | ' End If
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| 404 | If PropertyInstance <> 0 Then
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| 405 | GlobalDeleteAtom(PropertyInstance)
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| 406 | End If
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[473] | 407 | End Sub
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| 408 |
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| 409 | End Class
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| 410 |
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[542] | 411 | Class Form '仮
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[473] | 412 | Inherits Control
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| 413 | Protected
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| 414 | Override Sub GetCreateStruct(ByRef cs As CREATESTRUCT)
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| 415 | With cs
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| 416 | .lpCreateParams = 0
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| 417 | '.hInstance
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| 418 | .hMenu = 0
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| 419 | .hwndParent = 0
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| 420 | .cy = CW_USEDEFAULT
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| 421 | .cx = CW_USEDEFAULT
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| 422 | .y = CW_USEDEFAULT
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| 423 | .x = CW_USEDEFAULT
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| 424 | .style = WS_OVERLAPPEDWINDOW
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| 425 | .lpszName = ""
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| 426 | '.lpszClass
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| 427 | .dwExStyle = 0
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| 428 | End With
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| 429 | End Sub
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[542] | 430 | Public
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| 431 |
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[473] | 432 | Override Function WndProc(msg As DWord, wp As WPARAM, lp As LPARAM) As LRESULT
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| 433 | WndProc = 0
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| 434 | Select Case msg
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| 435 | Case Else
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| 436 | WndProc = Super.WndProc(msg, wp, lp)
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| 437 | End Select
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| 438 | End Function
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| 439 | End Class
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| 440 |
|
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| 441 | End Namespace 'Forms
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| 442 | End Namespace 'UI
|
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| 443 | End Namespace 'Widnows
|
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| 444 | End Namespace 'ActiveBasic
|
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| 445 |
|
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[542] | 446 |
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[473] | 447 | '----------
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| 448 | 'テスト実行用
|
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| 449 |
|
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| 450 | Imports ActiveBasic.Windows.UI.Forms
|
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| 451 |
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[542] | 452 | 'OleInitialize()
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| 453 | Control.Initialize(GetModuleHandle(0))
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| 454 |
|
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| 455 | Class MyForm
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| 456 | Inherits Form
|
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[473] | 457 | Public
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[544] | 458 | Sub t()
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| 459 | Dim f = This
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| 460 | f.AddMessageEvent(WM_DESTROY, AddressOf (f.Destory))
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| 461 | f.AddPaintDC(AddressOf (f.Paint))
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| 462 | End Sub
|
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| 463 |
|
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| 464 | Sub Destory(sender As Object, e As EventArgs)
|
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| 465 | OutputDebugString(Ex"Destory\r\n")
|
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[542] | 466 | PostQuitMessage(0)
|
---|
| 467 | End Sub
|
---|
[544] | 468 |
|
---|
| 469 | Sub Paint(sender As Object, e As PaintDCEventArgs)
|
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| 470 | TextOut(e.Handle, 10, 10, "Hello world!", 12)
|
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| 471 | End Sub
|
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[473] | 472 | End Class
|
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| 473 |
|
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[542] | 474 | Dim f = New MyForm
|
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[544] | 475 | f.t()
|
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[473] | 476 | f.Create()
|
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[542] | 477 | ShowWindow(f.Handle, SW_SHOW)
|
---|
[473] | 478 |
|
---|
[542] | 479 | Dim m As MSG
|
---|
| 480 | Do
|
---|
| 481 | Dim ret = GetMessage(m, 0, 0, 0)
|
---|
| 482 | If ret = 0 Then
|
---|
| 483 | Exit Do
|
---|
| 484 | ElseIf ret = -1 Then
|
---|
| 485 | ExitProcess(-1)
|
---|
| 486 | End If
|
---|
| 487 |
|
---|
| 488 | TranslateMessage(m)
|
---|
| 489 | DispatchMessage(m)
|
---|
| 490 | Loop
|
---|
| 491 |
|
---|
| 492 | f = Nothing
|
---|
| 493 | System.GC.Collect()
|
---|
| 494 |
|
---|
| 495 | Control.Uninitialize()
|
---|
| 496 | 'OleUninitialize()
|
---|
| 497 |
|
---|
| 498 | End
|
---|