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"
34 FGATCDisplay *current_atcdisplay;
38 FGATCDisplay::FGATCDisplay( void ) {
40 change_msg_flag = false;
47 FGATCDisplay::~FGATCDisplay( void ) {
50 void FGATCDisplay::init( void ) {
54 // update - this actually draws the visuals and should be called from the main Flightgear rendering loop.
55 void FGATCDisplay::update() {
57 // These strings are used for temporary storage of the transmission string in order
58 // that the string we view only changes when the next repitition starts scrolling
59 // even though the master string (rep_msg_str) may change at any time.
60 static string msg1 = "";
61 static string msg2 = "";
64 //cout << "dsp_offset1 = " << dsp_offset1 << " dsp_offset2 = " << dsp_offset2 << endl;
65 if(dsp_offset1 == 0) {
68 if(dsp_offset2 == 0) {
71 // Check for the situation where one offset is negative and the message is changed
75 } else if(dsp_offset2 < 0) {
78 change_msg_flag = false;
81 float fps = general.get_frame_rate();
83 //cout << "In FGATC::update()" << endl;
84 SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize");
85 SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize");
86 int iwidth = xsize_node->getIntValue();
87 int iheight = ysize_node->getIntValue();
89 glMatrixMode( GL_PROJECTION );
92 gluOrtho2D( 0, iwidth, 0, iheight );
93 glMatrixMode( GL_MODELVIEW );
97 glDisable( GL_DEPTH_TEST );
98 glDisable( GL_LIGHTING );
100 glColor3f( 0.9, 0.4, 0.2 );
102 // guiFnt.drawString( rep_msg_str.c_str(),
103 // int(iwidth - guiFnt.getStringWidth(buf) - 10 - (int)dsp_offset),
105 guiFnt.drawString( msg1.c_str(),
106 int(iwidth - 10 - dsp_offset1),
108 guiFnt.drawString( msg2.c_str(),
109 int(iwidth - 10 - dsp_offset2),
111 glEnable( GL_DEPTH_TEST );
112 glEnable( GL_LIGHTING );
113 glMatrixMode( GL_PROJECTION );
115 glMatrixMode( GL_MODELVIEW );
118 // Try to scroll at a frame rate independent speed
119 // 40 pixels/second looks about right for now
120 if(dsp_offset1 >= dsp_offset2) {
121 dsp_offset1+=(40.0/fps);
122 dsp_offset2 = dsp_offset1 - (rep_msg_str.size() * 10) - 100;
123 if(dsp_offset1 > (iwidth + (rep_msg_str.size() * 10)))
126 dsp_offset2+=(40.0/fps);
127 dsp_offset1 = dsp_offset2 - (rep_msg_str.size() * 10) - 100;
128 if(dsp_offset2 > (iwidth + (rep_msg_str.size() * 10)))
136 void FGATCDisplay::RegisterRepeatingMessage(string msg) {
142 void FGATCDisplay::ChangeRepeatingMessage(string newmsg) {
143 rep_msg_str = newmsg;
144 change_msg_flag = true;
148 void FGATCDisplay::CancelRepeatingMessage() {