- Update to r53061
[reactos.git] / base / applications / network / telnet / src / tmouse.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 //Telnet Win32 : an ANSI telnet client.
3 //Copyright (C) 1998 Paul Brannan
4 //Copyright (C) 1998 I.Ioannou
5 //Copyright (C) 1997 Brad Johnson
6 //
7 //This program is free software; you can redistribute it and/or
8 //modify it under the terms of the GNU General Public License
9 //as published by the Free Software Foundation; either version 2
10 //of the License, or (at your option) any later version.
11 //
12 //This program is distributed in the hope that it will be useful,
13 //but WITHOUT ANY WARRANTY; without even the implied warranty of
14 //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 //GNU General Public License for more details.
16 //
17 //You should have received a copy of the GNU General Public License
18 //along with this program; if not, write to the Free Software
19 //Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 //
21 //I.Ioannou
22 //roryt@hol.gr
23 //
24 ///////////////////////////////////////////////////////////////////////////
25
26 // TMouse.cpp
27 // A simple class for handling mouse events
28 // Written by Paul Brannan <pbranna@clemson.edu>
29 // Last modified August 30, 1998
30
31 #include "precomp.h"
32
33 TMouse::TMouse(Tnclip &RefClipboard): Clipboard(RefClipboard) {
34 hConsole = GetStdHandle(STD_INPUT_HANDLE);
35 hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
36 }
37
38 TMouse::~TMouse() {
39 }
40
41 void TMouse::get_coords(COORD *start_coords, COORD *end_coords,
42 COORD *first_coords, COORD *last_coords) {
43 if(end_coords->Y < start_coords->Y ||
44 (end_coords->Y == start_coords->Y && end_coords->X < start_coords->X))
45 {
46 *first_coords = *end_coords;
47 *last_coords = *start_coords;
48 } else {
49 *first_coords = *start_coords;
50 *last_coords = *end_coords;
51 }
52 last_coords->X++;
53 }
54
55 void TMouse::doMouse_init() {
56 GetConsoleScreenBufferInfo(hStdout, &ConsoleInfo);
57 chiBuffer = newBuffer();
58 saveScreen(chiBuffer);
59 }
60
61 void TMouse::doMouse_cleanup() {
62 restoreScreen(chiBuffer);
63 delete[] chiBuffer;
64 }
65
66 void TMouse::move_mouse(COORD start_coords, COORD end_coords) {
67 COORD screen_start = {0, 0};
68 COORD first_coords, last_coords;
69 DWORD Result;
70
71 FillConsoleOutputAttribute(hStdout, normal,
72 ConsoleInfo.dwSize.X * ConsoleInfo.dwSize.Y, screen_start, &Result);
73
74 get_coords(&start_coords, &end_coords, &first_coords, &last_coords);
75 FillConsoleOutputAttribute(hStdout, inverse, ConsoleInfo.dwSize.X *
76 (last_coords.Y - first_coords.Y) + (last_coords.X - first_coords.X),
77 first_coords, &Result);
78 }
79
80 void TMouse::doClip(COORD start_coords, COORD end_coords) {
81 // COORD screen_start = {0, 0};
82 COORD first_coords, last_coords;
83 DWORD Result;
84
85 get_coords(&start_coords, &end_coords, &first_coords, &last_coords);
86
87 // Allocate the minimal size buffer
88 int data_size = 3 + ConsoleInfo.dwSize.X *
89 (last_coords.Y - first_coords.Y) + (last_coords.X - first_coords.X);
90 HGLOBAL clipboard_data = GlobalAlloc(GMEM_MOVEABLE + GMEM_DDESHARE,
91 data_size);
92 LPVOID mem_ptr = GlobalLock(clipboard_data);
93
94 // Reset data_size so we can count the actual data size
95 data_size = 0;
96
97 // Read the console, put carriage returns at the end of each line if
98 // reading more than one line (Paul Brannan 9/17/98)
99 for(int j = first_coords.Y; j <= last_coords.Y; j++) {
100
101 // Read line at (0,j)
102 COORD coords;
103 coords.X = 0;
104 coords.Y = j;
105 int length = ConsoleInfo.dwSize.X;
106
107 if(j == first_coords.Y) {
108 coords.X = first_coords.X;
109 length = ConsoleInfo.dwSize.X - first_coords.X;
110 } else {
111 // Add a carriage return to the end of the previous line
112 *((char *)mem_ptr + data_size++) = '\r';
113 *((char *)mem_ptr + data_size++) = '\n';
114 }
115
116 if(j == last_coords.Y) {
117 length -= (ConsoleInfo.dwSize.X - last_coords.X);
118 }
119
120 // Read the next line
121 ReadConsoleOutputCharacter(hStdout, (LPTSTR)((char *)mem_ptr +
122 data_size), length, coords, &Result);
123 data_size += Result;
124
125 // Strip the spaces at the end of the line
126 if((j != last_coords.Y) && (first_coords.Y != last_coords.Y))
127 while(*((char *)mem_ptr + data_size - 1) == ' ') data_size--;
128 }
129 if(first_coords.Y != last_coords.Y) {
130 // Add a carriage return to the end of the last line
131 *((char *)mem_ptr + data_size++) = '\r';
132 *((char *)mem_ptr + data_size++) = '\n';
133 }
134
135 *((char *)mem_ptr + data_size) = 0;
136 GlobalUnlock(clipboard_data);
137
138 Clipboard.Copy(clipboard_data);
139 }
140
141 void TMouse::doMouse() {
142 INPUT_RECORD InputRecord;
143 DWORD Result;
144 InputRecord.EventType = KEY_EVENT; // just in case
145 while(InputRecord.EventType != MOUSE_EVENT) {
146 if (!ReadConsoleInput(hConsole, &InputRecord, 1, &Result))
147 return; // uh oh! we don't know the starting coordinates!
148 }
149 if(InputRecord.Event.MouseEvent.dwButtonState == 0) return;
150 if(!(InputRecord.Event.MouseEvent.dwButtonState &
151 FROM_LEFT_1ST_BUTTON_PRESSED)) {
152 Clipboard.Paste();
153 return;
154 }
155
156 COORD screen_start = {0, 0};
157 COORD start_coords = InputRecord.Event.MouseEvent.dwMousePosition;
158 COORD end_coords = start_coords;
159 BOOL done = FALSE;
160
161 // init vars
162 doMouse_init();
163 int normal_bg = ini.get_normal_bg();
164 int normal_fg = ini.get_normal_fg();
165 if(normal_bg == -1) normal_bg = 0; // FIX ME!! This is just a hack
166 if(normal_fg == -1) normal_fg = 7;
167 normal = (normal_bg << 4) | normal_fg;
168 inverse = (normal_fg << 4) | normal_bg;
169
170 // make screen all one attribute
171 FillConsoleOutputAttribute(hStdout, normal, ConsoleInfo.dwSize.X *
172 ConsoleInfo.dwSize.Y, screen_start, &Result);
173
174 while(!done) {
175
176 switch (InputRecord.EventType) {
177 case MOUSE_EVENT:
178 switch(InputRecord.Event.MouseEvent.dwEventFlags) {
179 case 0: // only copy if the mouse button has been released
180 if(!InputRecord.Event.MouseEvent.dwButtonState) {
181 doClip(start_coords, end_coords);
182 done = TRUE;
183 }
184 break;
185
186 case MOUSE_MOVED:
187 end_coords = InputRecord.Event.MouseEvent.dwMousePosition;
188 move_mouse(start_coords, end_coords);
189 break;
190 }
191 break;
192 // If we are changing focus, we don't want to highlight anything
193 // (Paul Brannan 9/2/98)
194 case FOCUS_EVENT:
195 return;
196 }
197
198 WaitForSingleObject(hConsole, INFINITE);
199 if (!ReadConsoleInput(hConsole, &InputRecord, 1, &Result))
200 done = TRUE;
201
202 }
203
204 doMouse_cleanup();
205 }
206
207 void TMouse::scrollMouse() {
208 doMouse();
209 }