/* assembles lists of line strips from the given track recursively traversing
the subtracks data */
void Track::Assemble(std::list< std::list<wxPoint> > &pointlists, const LLBBox &box, double scale, int &last, int level, int pos)
{
if(pos == (int)SubTracks[level].size())
return;
SubTrack &s = SubTracks[level][pos];
if(box.IntersectOut(s.m_box))
return;
if(s.m_scale < scale) {
pos <<= level;
if(last < pos - 1) {
std::list<wxPoint> new_list;
pointlists.push_back(new_list);
}
if(last < pos)
AddPointToList(pointlists, pos);
last = wxMin(pos + (1<<level), TrackPoints.size() - 1);
AddPointToList(pointlists, last);
} else {
Assemble(pointlists, box, scale, last, level-1, pos<<1);
Assemble(pointlists, box, scale, last, level-1, (pos<<1)+1);
}
}
// internal test to see if regions don't intersect (optimization)
bool LLRegion::NoIntersection(const LLRegion& region) const
{
if(Empty() || region.Empty())
return true;
LLBBox box = GetBox(), rbox = region.GetBox();
return box.IntersectOut(rbox) || NoIntersection(rbox) || region.NoIntersection(box);
}
void RoutePoint::DrawGL( ViewPort &vp, bool use_cached_screen_coords )
{
if( !m_bIsVisible )
return;
// Optimization, especially apparent on tracks in normal cases
if( m_IconName == _T("empty") && !m_bShowName && !m_bPtIsSelected ) return;
if(m_wpBBox.GetValid() &&
vp.view_scale_ppm == m_wpBBox_view_scale_ppm &&
vp.rotation == m_wpBBox_rotation) {
/* see if this waypoint can intersect with bounding box */
LLBBox vpBBox = vp.GetBBox();
if( vpBBox.IntersectOut( m_wpBBox ) ){
// Are Range Rings enabled?
if(m_bShowWaypointRangeRings && (m_iWaypointRangeRingsNumber > 0)){
double factor = 1.00;
if( m_iWaypointRangeRingsStepUnits == 1 ) // convert kilometers to NMi
factor = 1 / 1.852;
double radius = factor * m_iWaypointRangeRingsNumber * m_fWaypointRangeRingsStep / 60.;
LLBBox radar_box = m_wpBBox;
radar_box.EnLarge(radius * 2 );
if( vpBBox.IntersectOut( radar_box ) ){
return;
}
}
else
return;
}
}
wxPoint r;
wxRect hilitebox;
unsigned char transparency = 150;
double platform_pen_width = wxRound(wxMax(1.0, g_Platform->GetDisplayDPmm() / 2)); // 0.5 mm nominal, but not less than 1 pixel
if(use_cached_screen_coords && m_pos_on_screen)
r.x = m_screen_pos.m_x, r.y = m_screen_pos.m_y;
else
cc1->GetCanvasPointPix( m_lat, m_lon, &r );
if(r.x == INVALID_COORD)
return;
// Substitute icon?
wxBitmap *pbm;
if( ( m_bIsActive ) && ( m_IconName != _T("mob") ) )
pbm = pWayPointMan->GetIconBitmap( _T ( "activepoint" ) );
else
pbm = m_pbmIcon;
// If icon is corrupt, there is really nothing else to do...
if(!pbm->IsOk())
return;
int sx2 = pbm->GetWidth() / 2;
int sy2 = pbm->GetHeight() / 2;
// Calculate the mark drawing extents
wxRect r1( r.x - sx2, r.y - sy2, sx2 * 2, sy2 * 2 ); // the bitmap extents
wxRect r3 = r1;
if( m_bShowName ) {
if( !m_pMarkFont ) {
m_pMarkFont = FontMgr::Get().GetFont( _( "Marks" ) );
m_FontColor = FontMgr::Get().GetFontColor( _( "Marks" ) );
CalculateNameExtents();
}
if( m_pMarkFont ) {
wxRect r2( r.x + m_NameLocationOffsetX, r.y + m_NameLocationOffsetY,
m_NameExtents.x, m_NameExtents.y );
r3.Union( r2 );
}
}
hilitebox = r3;
hilitebox.x -= r.x;
hilitebox.y -= r.y;
hilitebox.x *= g_ChartScaleFactorExp;
hilitebox.y *= g_ChartScaleFactorExp;
hilitebox.width *= g_ChartScaleFactorExp;
hilitebox.height *= g_ChartScaleFactorExp;
float radius;
if( g_btouch ){
hilitebox.Inflate( 20 );
radius = 20.0f;
}
else{
hilitebox.Inflate( 4 );
radius = 4.0f;
}
/* update bounding box */
if(!m_wpBBox.GetValid() || vp.view_scale_ppm != m_wpBBox_view_scale_ppm || vp.rotation != m_wpBBox_rotation) {
double lat1, lon1, lat2, lon2;
cc1->GetCanvasPixPoint(r.x+hilitebox.x, r.y+hilitebox.y+hilitebox.height, lat1, lon1);
cc1->GetCanvasPixPoint(r.x+hilitebox.x+hilitebox.width, r.y+hilitebox.y, lat2, lon2);
if(lon1 > lon2)
m_wpBBox.Set(lat1, lon1, lat2, lon2+360);
else
m_wpBBox.Set(lat1, lon1, lat2, lon2);
m_wpBBox_view_scale_ppm = vp.view_scale_ppm;
m_wpBBox_rotation = vp.rotation;
}
// if(region.Contains(r3) == wxOutRegion)
// return;
ocpnDC dc;
// Highlite any selected point
if( m_bPtIsSelected ) {
wxColour hi_colour;
if( m_bBlink ){
wxPen *pen = g_pRouteMan->GetActiveRoutePointPen();
hi_colour = pen->GetColour();
}
else{
hi_colour = GetGlobalColor( _T ( "YELO1" ) );
}
AlphaBlending( dc, r.x + hilitebox.x, r.y + hilitebox.y, hilitebox.width, hilitebox.height, radius,
hi_colour, transparency );
}
bool bDrawHL = false;
if( m_bBlink && ( gFrame->nBlinkerTick & 1 ) ) bDrawHL = true;
if( ( !bDrawHL ) && ( NULL != m_pbmIcon ) ) {
int glw, glh;
unsigned int IconTexture = pWayPointMan->GetIconTexture( pbm, glw, glh );
glBindTexture(GL_TEXTURE_2D, IconTexture);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glColor3f(1, 1, 1);
int x = r1.x, y = r1.y, w = r1.width, h = r1.height;
float scale = 1.0;
// if(g_bresponsive){
scale = g_ChartScaleFactorExp;
// }
float ws = r1.width * scale;
float hs = r1.height * scale;
float xs = r.x - ws/2.;
float ys = r.y - hs/2.;
float u = (float)w/glw, v = (float)h/glh;
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(xs, ys);
glTexCoord2f(u, 0); glVertex2f(xs+ws, ys);
glTexCoord2f(u, v); glVertex2f(xs+ws, ys+hs);
glTexCoord2f(0, v); glVertex2f(xs, ys+hs);
glEnd();
// glBegin(GL_QUADS);
// glTexCoord2f(0, 0); glVertex2f(x, y);
// glTexCoord2f(u, 0); glVertex2f(x+w, y);
// glTexCoord2f(u, v); glVertex2f(x+w, y+h);
// glTexCoord2f(0, v); glVertex2f(x, y+h);
// glEnd();
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
if( m_bShowName && m_pMarkFont ) {
int w = m_NameExtents.x, h = m_NameExtents.y;
if(!m_iTextTexture && w && h) {
wxBitmap tbm(w, h); /* render text on dc */
wxMemoryDC dc;
dc.SelectObject( tbm );
dc.SetBackground( wxBrush( *wxBLACK ) );
dc.Clear();
dc.SetFont( *m_pMarkFont );
dc.SetTextForeground( *wxWHITE );
dc.DrawText( m_MarkName, 0, 0);
dc.SelectObject( wxNullBitmap );
/* make alpha texture for text */
wxImage image = tbm.ConvertToImage();
unsigned char *d = image.GetData();
unsigned char *e = new unsigned char[w * h];
if(d && e){
for( int p = 0; p < w*h; p++)
e[p] = d[3*p + 0];
}
/* create texture for rendered text */
glGenTextures(1, &m_iTextTexture);
glBindTexture(GL_TEXTURE_2D, m_iTextTexture);
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
m_iTextTextureWidth = NextPow2(w);
m_iTextTextureHeight = NextPow2(h);
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, m_iTextTextureWidth, m_iTextTextureHeight,
0, GL_ALPHA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h,
GL_ALPHA, GL_UNSIGNED_BYTE, e);
delete [] e;
}
if(m_iTextTexture) {
/* draw texture with text */
glBindTexture(GL_TEXTURE_2D, m_iTextTexture);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glColor3ub(m_FontColor.Red(), m_FontColor.Green(), m_FontColor.Blue());
int x = r.x + m_NameLocationOffsetX, y = r.y + m_NameLocationOffsetY;
float u = (float)w/m_iTextTextureWidth, v = (float)h/m_iTextTextureHeight;
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(x, y);
glTexCoord2f(u, 0); glVertex2f(x+w, y);
glTexCoord2f(u, v); glVertex2f(x+w, y+h);
glTexCoord2f(0, v); glVertex2f(x, y+h);
glEnd();
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
}
}
// Draw waypoint radar rings if activated
if( m_iWaypointRangeRingsNumber && m_bShowWaypointRangeRings ) {
double factor = 1.00;
if( m_iWaypointRangeRingsStepUnits == 1 ) // nautical miles
factor = 1 / 1.852;
factor *= m_fWaypointRangeRingsStep;
double tlat, tlon;
wxPoint r1;
ll_gc_ll( m_lat, m_lon, 0, factor, &tlat, &tlon );
cc1->GetCanvasPointPix( tlat, tlon, &r1 );
double lpp = sqrt( pow( (double) (r.x - r1.x), 2) +
pow( (double) (r.y - r1.y), 2 ) );
int pix_radius = (int) lpp;
wxPen ppPen1( m_wxcWaypointRangeRingsColour, platform_pen_width );
wxBrush saveBrush = dc.GetBrush();
wxPen savePen = dc.GetPen();
dc.SetPen( ppPen1 );
dc.SetBrush( wxBrush( m_wxcWaypointRangeRingsColour, wxBRUSHSTYLE_TRANSPARENT ) );
for( int i = 1; i <= m_iWaypointRangeRingsNumber; i++ )
dc.StrokeCircle( r.x, r.y, i * pix_radius );
dc.SetPen( savePen );
dc.SetBrush( saveBrush );
}
if( m_bBlink ) g_blink_rect = CurrentRect_in_DC; // also save for global blinker
// This will be useful for fast icon redraws
CurrentRect_in_DC.x = r.x + hilitebox.x;
CurrentRect_in_DC.y = r.y + hilitebox.y;
CurrentRect_in_DC.width = hilitebox.width;
CurrentRect_in_DC.height = hilitebox.height;
if( m_bBlink ) g_blink_rect = CurrentRect_in_DC; // also save for global blinker
}
void Route::Draw( ocpnDC& dc, ViewPort &vp, const LLBBox &box )
{
if( pRoutePointList->empty() )
return;
LLBBox test_box = GetBBox();
if( box.IntersectOut( test_box ) ) // Route is wholly outside window
return;
int width = g_route_line_width;
if( m_width != WIDTH_UNDEFINED ) width = m_width;
if( m_bVisible && m_bRtIsSelected ) {
wxPen spen = *g_pRouteMan->GetSelectedRoutePen();
spen.SetWidth( width );
dc.SetPen( spen );
dc.SetBrush( *g_pRouteMan->GetSelectedRouteBrush() );
}
else if ( m_bVisible )
{
wxPenStyle style = wxPENSTYLE_SOLID;
wxColour col;
if( m_style != wxPENSTYLE_INVALID ) style = m_style;
if( m_Colour == wxEmptyString ) {
col = g_pRouteMan->GetRoutePen()->GetColour();
} else {
for( unsigned int i = 0; i < sizeof( ::GpxxColorNames ) / sizeof(wxString); i++ ) {
if( m_Colour == ::GpxxColorNames[i] ) {
col = ::GpxxColors[i];
break;
}
}
}
dc.SetPen( *wxThePenList->FindOrCreatePen( col, width, style ) );
dc.SetBrush( *wxTheBrushList->FindOrCreateBrush( col, wxBRUSHSTYLE_SOLID ) );
}
if( m_bVisible && m_bRtIsActive )
{
wxPen spen = *g_pRouteMan->GetActiveRoutePen();
spen.SetWidth( width );
dc.SetPen( spen );
dc.SetBrush( *g_pRouteMan->GetActiveRouteBrush() );
}
wxPoint rpt1, rpt2;
if ( m_bVisible )
DrawPointWhich( dc, 1, &rpt1 );
wxRoutePointListNode *node = pRoutePointList->GetFirst();
RoutePoint *prp1 = node->GetData();
node = node->GetNext();
if ( !m_bVisible && prp1->m_bKeepXRoute )
prp1->Draw( dc );
while( node ) {
RoutePoint *prp2 = node->GetData();
if ( !m_bVisible && prp2->m_bKeepXRoute )
prp2->Draw( dc );
else if (m_bVisible)
prp2->Draw( dc, &rpt2 );
if ( m_bVisible )
{
// Handle offscreen points
bool b_2_on = vp.GetBBox().Contains( prp2->m_lat, prp2->m_lon );
bool b_1_on = vp.GetBBox().Contains( prp1->m_lat, prp1->m_lon );
//Simple case
if( b_1_on && b_2_on ) RenderSegment( dc, rpt1.x, rpt1.y, rpt2.x, rpt2.y, vp, true, m_hiliteWidth ); // with arrows
// In the cases where one point is on, and one off
// we must decide which way to go in longitude
// Arbitrarily, we will go the shortest way
double pix_full_circle = WGS84_semimajor_axis_meters * mercator_k0 * 2 * PI
* vp.view_scale_ppm;
double dp = pow( (double) ( rpt1.x - rpt2.x ), 2 ) + pow( (double) ( rpt1.y - rpt2.y ), 2 );
double dtest;
int adder;
if( b_1_on && !b_2_on ) {
if( rpt2.x < rpt1.x ) adder = (int) pix_full_circle;
else
adder = -(int) pix_full_circle;
dtest = pow( (double) ( rpt1.x - ( rpt2.x + adder ) ), 2 )
+ pow( (double) ( rpt1.y - rpt2.y ), 2 );
if( dp < dtest ) adder = 0;
RenderSegment( dc, rpt1.x, rpt1.y, rpt2.x + adder, rpt2.y, vp, true, m_hiliteWidth );
} else if( !b_1_on ) {
if( rpt1.x < rpt2.x ) adder = (int) pix_full_circle;
else
adder = -(int) pix_full_circle;
float rxd = rpt2.x - ( rpt1.x + adder );
float ryd = rpt1.y - rpt2.y;
dtest = rxd*rxd + ryd*ryd;
if( dp < dtest ) adder = 0;
RenderSegment( dc, rpt1.x + adder, rpt1.y, rpt2.x, rpt2.y, vp, true, m_hiliteWidth );
}
}
rpt1 = rpt2;
prp1 = prp2;
node = node->GetNext();
}
}
