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flightgear/src/Cockpit/hud_guag.cxx

380 lines
11 KiB
C++

#include "hud.hxx"
#ifdef USE_HUD_TextList
#define textString( x , y, text, font ) TextString( text, x , y )
#else
#define textString( x , y, text, font ) puDrawString ( guiFnt, text, x, y );
#endif
//============== Top of guage_instr class member definitions ==============
guage_instr ::
guage_instr( int x,
int y,
UINT width,
UINT height,
FLTFNPTR load_fn,
UINT options,
float disp_scale,
float maxValue,
float minValue,
UINT major_divs,
UINT minor_divs,
int dp_showing,
UINT modulus,
bool working) :
instr_scale( x, y, width, height,
load_fn, options,
(maxValue - minValue), // Always shows span?
maxValue, minValue,
disp_scale,
major_divs, minor_divs,
modulus, dp_showing,
working)
{
// UINT options = get_options();
// huds_vert = options & HUDS_VERT;
// huds_left = options & HUDS_LEFT;
// huds_right = options & HUDS_RIGHT;
// huds_both = (options & HUDS_BOTH) == HUDS_BOTH;
// huds_noticks = options & HUDS_NOTICKS;
// huds_notext = options & HUDS_NOTEXT;
// huds_top = options & HUDS_TOP;
// huds_bottom = options & HUDS_BOTTOM;
}
guage_instr ::
~guage_instr()
{
}
guage_instr ::
guage_instr( const guage_instr & image):
instr_scale( (instr_scale &) image)
{
// UINT options = get_options();
// huds_vert = options & HUDS_VERT;
// huds_left = options & HUDS_LEFT;
// huds_right = options & HUDS_RIGHT;
// huds_both = (options & HUDS_BOTH) == HUDS_BOTH;
// huds_noticks = options & HUDS_NOTICKS;
// huds_notext = options & HUDS_NOTEXT;
// huds_top = options & HUDS_TOP;
// huds_bottom = options & HUDS_BOTTOM;
}
guage_instr & guage_instr ::
operator = (const guage_instr & rhs )
{
if( !(this == &rhs)) {
instr_scale::operator = (rhs);
}
return *this;
}
// As implemented, draw only correctly draws a horizontal or vertical
// scale. It should contain a variation that permits clock type displays.
// Now is supports "tickless" displays such as control surface indicators.
// This routine should be worked over before using. Current value would be
// fetched and not used if not commented out. Clearly that is intollerable.
void guage_instr :: draw (void)
{
int marker_xs, marker_xe;
int marker_ys, marker_ye;
int text_x, text_y;
int width, height, bottom_4;
int lenstr;
int i;
char TextScale[80];
bool condition;
int disp_val = 0;
float vmin = min_val();
float vmax = max_val();
POINT mid_scr = get_centroid();
float cur_value = get_value();
RECT scrn_rect = get_location();
UINT options = get_options();
width = scrn_rect.left + scrn_rect.right;
height = scrn_rect.top + scrn_rect.bottom,
bottom_4 = scrn_rect.bottom / 4;
// Draw the basic markings for the scale...
if( huds_vert(options) ) { // Vertical scale
drawOneLine( scrn_rect.left, // Bottom tick bar
scrn_rect.top,
width,
scrn_rect.top);
drawOneLine( scrn_rect.left, // Top tick bar
height,
width,
height );
marker_xs = scrn_rect.left;
marker_xe = width;
if( huds_left(options) ) { // Read left, so line down right side
drawOneLine( width,
scrn_rect.top,
width,
height);
marker_xs = marker_xe - scrn_rect.right / 3; // Adjust tick xs
}
if( huds_right(options) ) { // Read right, so down left sides
drawOneLine( scrn_rect.left,
scrn_rect.top,
scrn_rect.left,
height);
marker_xe = scrn_rect.left + scrn_rect.right / 3; // Adjust tick xe
}
// At this point marker x_start and x_end values are transposed.
// To keep this from confusing things they are now interchanged.
if( huds_both(options) ) {
marker_ye = marker_xs;
marker_xs = marker_xe;
marker_xe = marker_ye;
}
// Work through from bottom to top of scale. Calculating where to put
// minor and major ticks.
if( !huds_noticks(options)) { // If not no ticks...:)
// Calculate x marker offsets
int last = (int)vmax + 1; //FloatToInt(vmax)+1;
i = (int)vmin; //FloatToInt(vmin);
for(; i <last ; i++ ) {
// for( i = (int)vmin; i <= (int)vmax; i++ ) {
// Calculate the location of this tick
marker_ys = scrn_rect.top + FloatToInt((i - vmin) * factor()/* +.5f*/);
// We compute marker_ys even though we don't know if we will use
// either major or minor divisions. Simpler.
if( div_min()) { // Minor tick marks
if( !(i%(int)div_min()) ) {
if( huds_left(options) && huds_right(options) ) {
drawOneLine( scrn_rect.left, marker_ys,
marker_xs - 3, marker_ys );
drawOneLine( marker_xe + 3, marker_ys,
width, marker_ys );
}
else {
if( huds_left(options) ) {
drawOneLine( marker_xs + 3, marker_ys, marker_xe, marker_ys );
}
else {
drawOneLine( marker_xs, marker_ys, marker_xe - 3, marker_ys );
}
}
}
}
// Now we work on the major divisions. Since these are also labeled
// and no labels are drawn otherwise, we label inside this if
// statement.
if( div_max()) { // Major tick mark
if( !(i%(int)div_max()) ) {
if( huds_left(options) && huds_right(options) ) {
drawOneLine( scrn_rect.left, marker_ys,
marker_xs, marker_ys );
drawOneLine( marker_xe, marker_ys,
width, marker_ys );
}
else {
drawOneLine( marker_xs, marker_ys, marker_xe, marker_ys );
}
if( !huds_notext(options) ) {
disp_val = i;
sprintf( TextScale, "%d",
FloatToInt(disp_val * data_scaling()/*+.5*/ ));
lenstr = getStringWidth( TextScale );
if( huds_left(options) && huds_right(options) ) {
text_x = mid_scr.x - lenstr/2 ;
}
else {
if( huds_left(options) ) {
text_x = marker_xs - lenstr;
}
else {
text_x = marker_xe - lenstr;
}
}
// Now we know where to put the text.
text_y = marker_ys;
textString( text_x, text_y, TextScale, GLUT_BITMAP_8_BY_13 );
}
}
} //
} //
} //
// Now that the scale is drawn, we draw in the pointer(s). Since labels
// have been drawn, text_x and text_y may be recycled. This is used
// with the marker start stops to produce a pointer for each side reading
text_y = scrn_rect.top + FloatToInt((cur_value - vmin) * factor() /*+.5f*/);
// text_x = marker_xs - scrn_rect.left;
if( huds_right(options) ) {
glBegin(GL_LINE_STRIP);
glVertex2f( scrn_rect.left, text_y + 5);
glVertex2f( marker_xe, text_y);
glVertex2f( scrn_rect.left, text_y - 5);
glEnd();
}
if( huds_left(options) ) {
glBegin(GL_LINE_STRIP);
glVertex2f( width, text_y + 5);
glVertex2f( marker_xs, text_y);
glVertex2f( width, text_y - 5);
glEnd();
}
} // End if VERTICAL SCALE TYPE
else { // Horizontal scale by default
drawOneLine( scrn_rect.left, // left tick bar
scrn_rect.top,
scrn_rect.left,
height);
drawOneLine( width, // right tick bar
scrn_rect.top,
width,
height );
marker_ys = scrn_rect.top; // Starting point for
marker_ye = height; // tick y location calcs
marker_xs = scrn_rect.left + FloatToInt((cur_value - vmin) * factor() /*+ .5f*/);
if( huds_top(options) ) {
drawOneLine( scrn_rect.left,
scrn_rect.top,
width,
scrn_rect.top); // Bottom box line
marker_ye = scrn_rect.top + scrn_rect.bottom / 2; // Tick point adjust
// Bottom arrow
glBegin(GL_LINE_STRIP);
glVertex2f( marker_xs - bottom_4, scrn_rect.top);
glVertex2f( marker_xs, marker_ye);
glVertex2f( marker_xs + bottom_4, scrn_rect.top);
glEnd();
}
if( huds_bottom(options) ) {
// Top box line
drawOneLine( scrn_rect.left, height, width, height);
// Tick point adjust
marker_ys = height - scrn_rect.bottom / 2;
// Top arrow
glBegin(GL_LINE_STRIP);
glVertex2f( marker_xs + bottom_4, height);
glVertex2f( marker_xs, marker_ys );
glVertex2f( marker_xs - bottom_4, height);
glEnd();
}
int last = (int)vmax + 1; //FloatToInt(vmax)+1;
i = (int)vmin; //FloatToInt(vmin);
for( ; i <last ; i++ ) {
condition = true;
if( !modulo()) {
if( i < min_val()) {
condition = false;
}
}
if( condition ) {
marker_xs = scrn_rect.left + FloatToInt((i - vmin) * factor()/* +.5f*/);
// marker_xs = scrn_rect.left + (int)((i - vmin) * factor() + .5f);
if( div_min()){
if( !(i%(int)div_min()) ) {
// draw in ticks only if they aren't too close to the edge.
if((( marker_xs + 5) > scrn_rect.left ) ||
(( marker_xs - 5 )< (width))){
if( huds_both(options) ) {
drawOneLine( marker_xs, scrn_rect.top,
marker_xs, marker_ys - 4);
drawOneLine( marker_xs, marker_ye + 4,
marker_xs, height);
}
else {
if( huds_top(options) ) {
drawOneLine( marker_xs, marker_ys,
marker_xs, marker_ye - 4);
}
else {
drawOneLine( marker_xs, marker_ys + 4,
marker_xs, marker_ye);
}
}
}
}
}
if( div_max()) {
if( !(i%(int)div_max()) ) {
if(modulo()) {
if( disp_val < 0) {
while( disp_val < 0 ) {
disp_val += modulo();
}
}
disp_val = i % (int)modulo();
} else {
disp_val = i;
}
sprintf( TextScale, "%d",
FloatToInt(disp_val * data_scaling()/* +.5*/ ));
lenstr = getStringWidth( TextScale);
// Draw major ticks and text only if far enough from the edge.
if(( (marker_xs - 10)> scrn_rect.left ) &&
( (marker_xs + 10) < width )){
if( huds_both(options) ) {
drawOneLine( marker_xs, scrn_rect.top,
marker_xs, marker_ys);
drawOneLine( marker_xs, marker_ye,
marker_xs, height);
if( !huds_notext(options) ) {
textString ( marker_xs - lenstr, marker_ys + 4,
TextScale, GLUT_BITMAP_8_BY_13 );
}
}
else {
drawOneLine( marker_xs, marker_ys,
marker_xs, marker_ye );
if( !huds_notext(options) ) {
if( huds_top(options) ) {
textString ( marker_xs - lenstr,
height - 10,
TextScale, GLUT_BITMAP_8_BY_13 );
}
else {
textString( marker_xs - lenstr, scrn_rect.top,
TextScale, GLUT_BITMAP_8_BY_13 );
}
}
}
}
}
}
}
}
}
}