1 // ATCdisplay.cxx - routines to display ATC output - graphically for now
3 // Written by David Luff, started October 2001.
5 // Copyright (C) 2001 David C Luff - david.luff@nottingham.ac.uk
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
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.
27 #include <simgear/props/props.hxx>
29 #include <Include/general.hxx>
30 #include <Main/fg_props.hxx>
33 #include "ATCdisplay.hxx"
37 FGATCDisplay::FGATCDisplay() {
39 change_msg_flag = false;
46 FGATCDisplay::~FGATCDisplay() {
49 void FGATCDisplay::init() {
52 void FGATCDisplay::bind() {
55 void FGATCDisplay::unbind() {
58 // update - this actually draws the visuals and should be called from the main Flightgear rendering loop.
59 void FGATCDisplay::update(double dt) {
61 // These strings are used for temporary storage of the transmission string in order
62 // that the string we view only changes when the next repetition starts scrolling
63 // even though the master string (rep_msg_str) may change at any time.
64 static string msg1 = "";
65 static string msg2 = "";
67 if( rep_msg || msgList.size() ) {
68 //cout << "In FGATC::update()" << endl;
69 SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize");
70 SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize");
71 int iwidth = xsize_node->getIntValue();
72 int iheight = ysize_node->getIntValue();
74 glMatrixMode( GL_PROJECTION );
77 gluOrtho2D( 0, iwidth, 0, iheight );
78 glMatrixMode( GL_MODELVIEW );
82 glDisable( GL_DEPTH_TEST );
83 glDisable( GL_LIGHTING );
85 glColor3f( 0.9, 0.4, 0.2 );
87 float fps = general.get_frame_rate();
90 //cout << "dsp_offset1 = " << dsp_offset1 << " dsp_offset2 = " << dsp_offset2 << endl;
91 if(dsp_offset1 == 0) {
94 if(dsp_offset2 == 0) {
97 // Check for the situation where one offset is negative and the message is changed
101 } else if(dsp_offset2 < 0) {
104 change_msg_flag = false;
107 // guiFnt.drawString( rep_msg_str.c_str(),
108 // int(iwidth - guiFnt.getStringWidth(buf) - 10 - (int)dsp_offset),
110 guiFnt.drawString( msg1.c_str(),
111 int(iwidth - 10 - dsp_offset1),
113 guiFnt.drawString( msg2.c_str(),
114 int(iwidth - 10 - dsp_offset2),
117 // Try to scroll at a frame rate independent speed
118 // 40 pixels/second looks about right for now
119 if(dsp_offset1 >= dsp_offset2) {
120 dsp_offset1+=(40.0/fps);
121 dsp_offset2 = dsp_offset1 - (rep_msg_str.size() * 10) - 100;
122 if(dsp_offset1 > (iwidth + (rep_msg_str.size() * 10)))
125 dsp_offset2+=(40.0/fps);
126 dsp_offset1 = dsp_offset2 - (rep_msg_str.size() * 10) - 100;
127 if(dsp_offset2 > (iwidth + (rep_msg_str.size() * 10)))
134 //cout << "Attempting to render single message\n";
135 // We have at least one non-repeating message to process
136 if(fgGetBool("/ATC/display/scroll-single-messages")) { // Scroll single messages across the screen.
137 msgList_itr = msgList.begin();
139 while(msgList_itr != msgList.end()) {
140 atcMessage m = *msgList_itr;
141 //cout << "m.counter = " << m.counter << '\n';
142 if(m.dsp_offset > (iwidth + (m.msg.size() * 10))) {
143 //cout << "Stopping single message\n";
144 msgList_itr = msgList.erase(msgList_itr);
145 } else if(m.counter > m.start_count) {
146 //cout << "Drawing single message\n";
147 guiFnt.drawString( m.msg.c_str(),
148 int(iwidth - 10 - m.dsp_offset),
151 m.dsp_offset += (80.0/fps);
156 //cout << "Not yet started single message\n";
163 } else { // Display single messages for a short period of time.
164 msgList_itr = msgList.begin();
166 while(msgList_itr != msgList.end()) {
167 atcMessage m = *msgList_itr;
168 //cout << "m.counter = " << m.counter << '\n';
169 if(m.counter > m.stop_count) {
170 //cout << "Stopping single message\n";
171 msgList_itr = msgList.erase(msgList_itr);
172 } else if(m.counter > m.start_count) {
173 int pin = (((int)m.msg.size() * 8) >= iwidth ? 5 : (iwidth - (m.msg.size() * 8))/2);
174 //cout << m.msg << '\n';
175 //cout << "pin = " << pin << ", iwidth = " << iwidth << ", msg.size = " << m.msg.size() << '\n';
176 guiFnt.drawString( m.msg.c_str(), pin, (iheight - 40) );
190 glEnable( GL_DEPTH_TEST );
191 glEnable( GL_LIGHTING );
192 glMatrixMode( GL_PROJECTION );
194 glMatrixMode( GL_MODELVIEW );
199 void FGATCDisplay::RegisterSingleMessage(string msg, double delay) {
200 //cout << msg << '\n';
205 m.start_count = delay;
206 m.stop_count = m.start_count + 5.0; // Display for 5ish seconds for now - this might have to change eg. be related to length of message in future
207 //cout << "m.stop_count = " << m.stop_count << '\n';
211 msgList.push_back(m);
212 //cout << "Single message registered\n";
215 void FGATCDisplay::RegisterRepeatingMessage(string msg) {
221 void FGATCDisplay::ChangeRepeatingMessage(string newmsg) {
222 rep_msg_str = newmsg;
223 change_msg_flag = true;
227 void FGATCDisplay::CancelRepeatingMessage() {