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.
25 #include <simgear/misc/props.hxx>
27 #include <Include/general.hxx>
28 #include <Main/fg_props.hxx>
31 #include "ATCdisplay.hxx"
35 FGATCDisplay::FGATCDisplay() {
37 change_msg_flag = false;
44 FGATCDisplay::~FGATCDisplay() {
47 void FGATCDisplay::init() {
50 void FGATCDisplay::bind() {
53 void FGATCDisplay::unbind() {
56 // update - this actually draws the visuals and should be called from the main Flightgear rendering loop.
57 void FGATCDisplay::update(double dt) {
59 // These strings are used for temporary storage of the transmission string in order
60 // that the string we view only changes when the next repetition starts scrolling
61 // even though the master string (rep_msg_str) may change at any time.
62 static string msg1 = "";
63 static string msg2 = "";
65 if( rep_msg || msgList.size() ) {
66 //cout << "In FGATC::update()" << endl;
67 SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize");
68 SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize");
69 int iwidth = xsize_node->getIntValue();
70 int iheight = ysize_node->getIntValue();
72 glMatrixMode( GL_PROJECTION );
75 gluOrtho2D( 0, iwidth, 0, iheight );
76 glMatrixMode( GL_MODELVIEW );
80 glDisable( GL_DEPTH_TEST );
81 glDisable( GL_LIGHTING );
83 glColor3f( 0.9, 0.4, 0.2 );
86 //cout << "dsp_offset1 = " << dsp_offset1 << " dsp_offset2 = " << dsp_offset2 << endl;
87 if(dsp_offset1 == 0) {
90 if(dsp_offset2 == 0) {
93 // Check for the situation where one offset is negative and the message is changed
97 } else if(dsp_offset2 < 0) {
100 change_msg_flag = false;
103 float fps = general.get_frame_rate();
105 // guiFnt.drawString( rep_msg_str.c_str(),
106 // int(iwidth - guiFnt.getStringWidth(buf) - 10 - (int)dsp_offset),
108 guiFnt.drawString( msg1.c_str(),
109 int(iwidth - 10 - dsp_offset1),
111 guiFnt.drawString( msg2.c_str(),
112 int(iwidth - 10 - dsp_offset2),
115 // Try to scroll at a frame rate independent speed
116 // 40 pixels/second looks about right for now
117 if(dsp_offset1 >= dsp_offset2) {
118 dsp_offset1+=(40.0/fps);
119 dsp_offset2 = dsp_offset1 - (rep_msg_str.size() * 10) - 100;
120 if(dsp_offset1 > (iwidth + (rep_msg_str.size() * 10)))
123 dsp_offset2+=(40.0/fps);
124 dsp_offset1 = dsp_offset2 - (rep_msg_str.size() * 10) - 100;
125 if(dsp_offset2 > (iwidth + (rep_msg_str.size() * 10)))
132 //cout << "Attempting to render single message\n";
133 // We have at least one non-repeating message to process
134 msgList_itr = msgList.begin();
136 while(msgList_itr != msgList.end()) {
137 atcMessage m = *msgList_itr;
138 //cout << "m.counter = " << m.counter << '\n';
139 if(m.counter > m.stop_count) {
140 //cout << "Stopping single message\n";
141 msgList_itr = msgList.erase(msgList_itr);
142 } else if(m.counter > m.start_count) {
143 guiFnt.drawString( m.msg.c_str(),
145 (iheight - 40) ); // TODO - relate the distance in that the string is rendered to the string length.
158 glEnable( GL_DEPTH_TEST );
159 glEnable( GL_LIGHTING );
160 glMatrixMode( GL_PROJECTION );
162 glMatrixMode( GL_MODELVIEW );
167 void FGATCDisplay::RegisterSingleMessage(string msg, int delay) {
172 m.start_count = delay * 30; // Fixme - need to use actual FPS
173 m.stop_count = m.start_count + 100; // Display for 3 - 5 seconds for now - this might have to change eg. be related to length of message in future
174 //cout << "m.stop_count = " << m.stop_count << '\n';
177 msgList.push_back(m);
178 //cout << "Single message registered\n";
181 void FGATCDisplay::RegisterRepeatingMessage(string msg) {
187 void FGATCDisplay::ChangeRepeatingMessage(string newmsg) {
188 rep_msg_str = newmsg;
189 change_msg_flag = true;
193 void FGATCDisplay::CancelRepeatingMessage() {