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Code improvements from Norman Vine

This commit is contained in:
daveluff 2002-12-05 16:51:40 +00:00
parent ac5def8fd5
commit 4d6ac0ddf5

View file

@ -33,10 +33,10 @@
// Constructor // Constructor
FGATCDisplay::FGATCDisplay() { FGATCDisplay::FGATCDisplay() {
rep_msg = false; rep_msg = false;
change_msg_flag = false; change_msg_flag = false;
dsp_offset1 = 0; dsp_offset1 = 0;
dsp_offset2 = 0; dsp_offset2 = 0;
} }
@ -55,103 +55,20 @@ void FGATCDisplay::unbind() {
// update - this actually draws the visuals and should be called from the main Flightgear rendering loop. // update - this actually draws the visuals and should be called from the main Flightgear rendering loop.
void FGATCDisplay::update(double dt) { void FGATCDisplay::update(double dt) {
// These strings are used for temporary storage of the transmission string in order
// that the string we view only changes when the next repetition starts scrolling
// even though the master string (rep_msg_str) may change at any time.
static string msg1 = "";
static string msg2 = "";
if(rep_msg) {
//cout << "dsp_offset1 = " << dsp_offset1 << " dsp_offset2 = " << dsp_offset2 << endl;
if(dsp_offset1 == 0) {
msg1 = rep_msg_str;
}
if(dsp_offset2 == 0) {
msg2 = rep_msg_str;
}
// Check for the situation where one offset is negative and the message is changed
if(change_msg_flag) {
if(dsp_offset1 < 0) {
msg1 = rep_msg_str;
} else if(dsp_offset2 < 0) {
msg2 = rep_msg_str;
}
change_msg_flag = false;
}
float fps = general.get_frame_rate();
//cout << "In FGATC::update()" << endl; // These strings are used for temporary storage of the transmission string in order
SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize"); // that the string we view only changes when the next repetition starts scrolling
SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize"); // even though the master string (rep_msg_str) may change at any time.
int iwidth = xsize_node->getIntValue(); static string msg1 = "";
int iheight = ysize_node->getIntValue(); static string msg2 = "";
glMatrixMode( GL_PROJECTION ); if( rep_msg || msgList.size() ) {
glPushMatrix(); //cout << "In FGATC::update()" << endl;
glLoadIdentity();
gluOrtho2D( 0, iwidth, 0, iheight );
glMatrixMode( GL_MODELVIEW );
glPushMatrix();
glLoadIdentity();
glDisable( GL_DEPTH_TEST );
glDisable( GL_LIGHTING );
glColor3f( 0.9, 0.4, 0.2 );
// guiFnt.drawString( rep_msg_str.c_str(),
// int(iwidth - guiFnt.getStringWidth(buf) - 10 - (int)dsp_offset),
// (iheight - 20) );
guiFnt.drawString( msg1.c_str(),
int(iwidth - 10 - dsp_offset1),
(iheight - 20) );
guiFnt.drawString( msg2.c_str(),
int(iwidth - 10 - dsp_offset2),
(iheight - 20) );
glEnable( GL_DEPTH_TEST );
glEnable( GL_LIGHTING );
glMatrixMode( GL_PROJECTION );
glPopMatrix();
glMatrixMode( GL_MODELVIEW );
glPopMatrix();
// Try to scroll at a frame rate independent speed
// 40 pixels/second looks about right for now
if(dsp_offset1 >= dsp_offset2) {
dsp_offset1+=(40.0/fps);
dsp_offset2 = dsp_offset1 - (rep_msg_str.size() * 10) - 100;
if(dsp_offset1 > (iwidth + (rep_msg_str.size() * 10)))
dsp_offset1 = 0;
} else {
dsp_offset2+=(40.0/fps);
dsp_offset1 = dsp_offset2 - (rep_msg_str.size() * 10) - 100;
if(dsp_offset2 > (iwidth + (rep_msg_str.size() * 10)))
dsp_offset2 = 0;
}
}
if(msgList.size()) {
//cout << "Attempting to render single message\n";
// We have at least one non-repeating message to process
msgList_itr = msgList.begin();
int i = 0;
while(msgList_itr != msgList.end()) {
atcMessage m = *msgList_itr;
//cout << "m.counter = " << m.counter << '\n';
if(m.counter > m.stop_count) {
//cout << "Stopping single message\n";
msgList_itr = msgList.erase(msgList_itr);
} else if(m.counter > m.start_count) {
//cout << "Displaying single message\n";
// Display the message
// FIXME - I'm sure all this opengl code should only be called once until all drawing is finished
SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize"); SGPropertyNode *xsize_node = fgGetNode("/sim/startup/xsize");
SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize"); SGPropertyNode *ysize_node = fgGetNode("/sim/startup/ysize");
int iwidth = xsize_node->getIntValue(); int iwidth = xsize_node->getIntValue();
int iheight = ysize_node->getIntValue(); int iheight = ysize_node->getIntValue();
glMatrixMode( GL_PROJECTION ); glMatrixMode( GL_PROJECTION );
glPushMatrix(); glPushMatrix();
glLoadIdentity(); glLoadIdentity();
@ -162,62 +79,122 @@ void FGATCDisplay::update(double dt) {
glDisable( GL_DEPTH_TEST ); glDisable( GL_DEPTH_TEST );
glDisable( GL_LIGHTING ); glDisable( GL_LIGHTING );
glColor3f( 0.9, 0.4, 0.2 ); glColor3f( 0.9, 0.4, 0.2 );
guiFnt.drawString( m.msg.c_str(), if(rep_msg) {
100, //cout << "dsp_offset1 = " << dsp_offset1 << " dsp_offset2 = " << dsp_offset2 << endl;
(iheight - 40) ); // TODO - relate the distance in that the string is rendered to the string length. if(dsp_offset1 == 0) {
msg1 = rep_msg_str;
}
if(dsp_offset2 == 0) {
msg2 = rep_msg_str;
}
// Check for the situation where one offset is negative and the message is changed
if(change_msg_flag) {
if(dsp_offset1 < 0) {
msg1 = rep_msg_str;
} else if(dsp_offset2 < 0) {
msg2 = rep_msg_str;
}
change_msg_flag = false;
}
float fps = general.get_frame_rate();
// guiFnt.drawString( rep_msg_str.c_str(),
// int(iwidth - guiFnt.getStringWidth(buf) - 10 - (int)dsp_offset),
// (iheight - 20) );
guiFnt.drawString( msg1.c_str(),
int(iwidth - 10 - dsp_offset1),
(iheight - 20) );
guiFnt.drawString( msg2.c_str(),
int(iwidth - 10 - dsp_offset2),
(iheight - 20) );
// Try to scroll at a frame rate independent speed
// 40 pixels/second looks about right for now
if(dsp_offset1 >= dsp_offset2) {
dsp_offset1+=(40.0/fps);
dsp_offset2 = dsp_offset1 - (rep_msg_str.size() * 10) - 100;
if(dsp_offset1 > (iwidth + (rep_msg_str.size() * 10)))
dsp_offset1 = 0;
} else {
dsp_offset2+=(40.0/fps);
dsp_offset1 = dsp_offset2 - (rep_msg_str.size() * 10) - 100;
if(dsp_offset2 > (iwidth + (rep_msg_str.size() * 10)))
dsp_offset2 = 0;
}
}
if(msgList.size()) {
//cout << "Attempting to render single message\n";
// We have at least one non-repeating message to process
msgList_itr = msgList.begin();
int i = 0;
while(msgList_itr != msgList.end()) {
atcMessage m = *msgList_itr;
//cout << "m.counter = " << m.counter << '\n';
if(m.counter > m.stop_count) {
//cout << "Stopping single message\n";
msgList_itr = msgList.erase(msgList_itr);
} else if(m.counter > m.start_count) {
guiFnt.drawString( m.msg.c_str(),
100,
(iheight - 40) ); // TODO - relate the distance in that the string is rendered to the string length.
++m.counter;
msgList[i] = m;
++msgList_itr;
++i;
} else {
++m.counter;
msgList[i] = m;
++msgList_itr;
++i;
}
}
}
glEnable( GL_DEPTH_TEST ); glEnable( GL_DEPTH_TEST );
glEnable( GL_LIGHTING ); glEnable( GL_LIGHTING );
glMatrixMode( GL_PROJECTION ); glMatrixMode( GL_PROJECTION );
glPopMatrix(); glPopMatrix();
glMatrixMode( GL_MODELVIEW ); glMatrixMode( GL_MODELVIEW );
glPopMatrix(); glPopMatrix();
++m.counter;
msgList[i] = m;
++msgList_itr;
++i;
} else {
++m.counter;
msgList[i] = m;
++msgList_itr;
++i;
}
} }
}
} }
void FGATCDisplay::RegisterSingleMessage(string msg, int delay) { void FGATCDisplay::RegisterSingleMessage(string msg, int delay) {
atcMessage m; atcMessage m;
m.msg = msg; m.msg = msg;
m.repeating = false; m.repeating = false;
m.counter = 0; m.counter = 0;
m.start_count = delay * 30; // Fixme - need to use actual FPS m.start_count = delay * 30; // Fixme - need to use actual FPS
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 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
//cout << "m.stop_count = " << m.stop_count << '\n'; //cout << "m.stop_count = " << m.stop_count << '\n';
m.id = 0; m.id = 0;
msgList.push_back(m); msgList.push_back(m);
//cout << "Single message registered\n"; //cout << "Single message registered\n";
} }
void FGATCDisplay::RegisterRepeatingMessage(string msg) { void FGATCDisplay::RegisterRepeatingMessage(string msg) {
rep_msg = true; rep_msg = true;
rep_msg_str = msg; rep_msg_str = msg;
return; return;
} }
void FGATCDisplay::ChangeRepeatingMessage(string newmsg) { void FGATCDisplay::ChangeRepeatingMessage(string newmsg) {
rep_msg_str = newmsg; rep_msg_str = newmsg;
change_msg_flag = true; change_msg_flag = true;
return; return;
} }
void FGATCDisplay::CancelRepeatingMessage() { void FGATCDisplay::CancelRepeatingMessage() {
rep_msg = false; rep_msg = false;
rep_msg_str = ""; rep_msg_str = "";
dsp_offset1 = 0; dsp_offset1 = 0;
dsp_offset2 = 0; dsp_offset2 = 0;
return; return;
} }