1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
{
Free Pascal port of the OpenPTC C++ library.
Copyright (C) 2001-2006 Nikolay Nikolov (nickysn@users.sourceforge.net)
Original C++ version by Glenn Fiedler (ptc@gaffer.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
}
Constructor TWin32Mouse.Create(window : HWND; thread : DWord; multithreaded : Boolean; EventQueue : TEventQueue; FullScreen : Boolean; ConsoleWidth, ConsoleHeight : Integer);
Begin
Inherited Create(window, thread);
FEventQueue := EventQueue;
FFullScreen := FullScreen;
FConsoleWidth := ConsoleWidth;
FConsoleHeight := ConsoleHeight;
FPreviousMousePositionSaved := False;
{ enable buffering }
FEnabled := True;
End;
Procedure TWin32Mouse.SetWindowArea(WindowX1, WindowY1, WindowX2, WindowY2 : Integer);
Begin
FWindowX1 := WindowX1;
FWindowY1 := WindowY1;
FWindowX2 := WindowX2;
FWindowY2 := WindowY2;
End;
Procedure TWin32Mouse.enable;
Begin
{ enable buffering }
FEnabled := True;
End;
Procedure TWin32Mouse.disable;
Begin
{ disable buffering }
FEnabled := False;
End;
Function TWin32Mouse.WndProc(hWnd : HWND; message : DWord; wParam : WPARAM; lParam : LPARAM) : LRESULT;
Var
fwKeys : Integer;
xPos, yPos : Integer;
LButton, MButton, RButton : Boolean;
TranslatedXPos, TranslatedYPos : Integer;
PTCMouseButtonState : TPTCMouseButtonState;
WindowRect : RECT;
button : TPTCMouseButton;
before, after : Boolean;
cstate : TPTCMouseButtonState;
Begin
Result := 0;
{ check enabled flag }
If Not FEnabled Then
Exit;
If (message = WM_MOUSEMOVE) Or
(message = WM_LBUTTONDOWN) Or (message = WM_LBUTTONUP) Or (message = WM_LBUTTONDBLCLK) Or
(message = WM_MBUTTONDOWN) Or (message = WM_MBUTTONUP) Or (message = WM_MBUTTONDBLCLK) Or
(message = WM_RBUTTONDOWN) Or (message = WM_RBUTTONUP) Or (message = WM_RBUTTONDBLCLK) Then
Begin
fwKeys := wParam; {MK_LBUTTON or MK_MBUTTON or MK_RBUTTON or MK_CONTROL or MK_SHIFT}
xPos := lParam And $FFFF;
yPos := (lParam Shr 16) And $FFFF;
LButton := (fwKeys And MK_LBUTTON) <> 0;
MButton := (fwKeys And MK_MBUTTON) <> 0;
RButton := (fwKeys And MK_RBUTTON) <> 0;
If Not FFullScreen Then
Begin
GetClientRect(hWnd, WindowRect);
FWindowX1 := WindowRect.left;
FWindowY1 := WindowRect.top;
FWindowX2 := WindowRect.right - 1;
FWindowY2 := WindowRect.bottom - 1;
End;
If (xPos >= FWindowX1) And (yPos >= FWindowY1) And
(xPos <= FWindowX2) And (yPos <= FWindowY2) Then
Begin
If FWindowX2 <> FWindowX1 Then
TranslatedXPos := (xPos - FWindowX1) * (FConsoleWidth - 1) Div (FWindowX2 - FWindowX1)
Else { avoid div by zero }
TranslatedXPos := 0;
If FWindowY2 <> FWindowY1 Then
TranslatedYPos := (yPos - FWindowY1) * (FConsoleHeight - 1) Div (FWindowY2 - FWindowY1)
Else { avoid div by zero }
TranslatedYPos := 0;
{ Just in case... }
If TranslatedXPos < 0 Then
TranslatedXPos := 0;
If TranslatedYPos < 0 Then
TranslatedYPos := 0;
If TranslatedXPos >= FConsoleWidth Then
TranslatedXPos := FConsoleWidth - 1;
If TranslatedYPos >= FConsoleHeight Then
TranslatedYPos := FConsoleHeight - 1;
If Not LButton Then
PTCMouseButtonState := []
Else
PTCMouseButtonState := [PTCMouseButton1];
If RButton Then
PTCMouseButtonState := PTCMouseButtonState + [PTCMouseButton2];
If MButton Then
PTCMouseButtonState := PTCMouseButtonState + [PTCMouseButton3];
If Not FPreviousMousePositionSaved Then
Begin
FPreviousMouseX := TranslatedXPos; { first DeltaX will be 0 }
FPreviousMouseY := TranslatedYPos; { first DeltaY will be 0 }
FPreviousMouseButtonState := [];
End;
{ movement? }
If (TranslatedXPos <> FPreviousMouseX) Or (TranslatedYPos <> FPreviousMouseY) Then
FEventQueue.AddEvent(TPTCMouseEvent.Create(TranslatedXPos, TranslatedYPos, TranslatedXPos - FPreviousMouseX, TranslatedYPos - FPreviousMouseY, FPreviousMouseButtonState));
{ button presses/releases? }
cstate := FPreviousMouseButtonState;
For button := Low(button) To High(button) Do
Begin
before := button In FPreviousMouseButtonState;
after := button In PTCMouseButtonState;
If after And (Not before) Then
Begin
{ button was pressed }
cstate := cstate + [button];
FEventQueue.AddEvent(TPTCMouseButtonEvent.Create(TranslatedXPos, TranslatedYPos, 0, 0, cstate, True, button));
End
Else
If before And (Not after) Then
Begin
{ button was released }
cstate := cstate - [button];
FEventQueue.AddEvent(TPTCMouseButtonEvent.Create(TranslatedXPos, TranslatedYPos, 0, 0, cstate, False, button));
End;
End;
FPreviousMouseX := TranslatedXPos;
FPreviousMouseY := TranslatedYPos;
FPreviousMouseButtonState := PTCMouseButtonState;
FPreviousMousePositionSaved := True;
End;
End;
End;
|
