void
MapOverlayBitmap::Draw(Canvas &canvas,
const WindowProjection &projection) noexcept
{
if (!simple_bounds.Overlaps(projection.GetScreenBounds()))
/* not visible, outside of screen area */
return;
const RasterPoint vertices[] = {
projection.GeoToScreen(bounds.top_left),
projection.GeoToScreen(bounds.top_right),
projection.GeoToScreen(bounds.bottom_left),
projection.GeoToScreen(bounds.bottom_right),
};
const ScopeVertexPointer vp(vertices);
GLTexture &texture = *bitmap.GetNative();
texture.Bind();
const PixelSize allocated = texture.GetAllocatedSize();
const unsigned src_x = 0, src_y = 0;
const unsigned src_width = texture.GetWidth();
const unsigned src_height = texture.GetHeight();
GLfloat x0 = (GLfloat)src_x / allocated.cx;
GLfloat y0 = (GLfloat)src_y / allocated.cy;
GLfloat x1 = (GLfloat)(src_x + src_width) / allocated.cx;
GLfloat y1 = (GLfloat)(src_y + src_height) / allocated.cy;
if (bitmap.IsFlipped()) {
y0 = 1 - y0;
y1 = 1 - y1;
}
const Point2D<GLfloat> coord[] = {
{x0, y0},
{x1, y0},
{x0, y1},
{x1, y1},
};
const ScopeTextureConstantAlpha blend(alpha);
#ifdef USE_GLSL
OpenGL::texture_shader->Use();
glEnableVertexAttribArray(OpenGL::Attribute::TEXCOORD);
glVertexAttribPointer(OpenGL::Attribute::TEXCOORD, 2, GL_FLOAT, GL_FALSE,
0, coord);
#else
const GLEnable<GL_TEXTURE_2D> scope;
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, coord);
#endif
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
#ifdef USE_GLSL
glDisableVertexAttribArray(OpenGL::Attribute::TEXCOORD);
OpenGL::solid_shader->Use();
#else
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#endif
}
virtual void OnPaint(Canvas &canvas) override {
canvas.ClearWhite();
const GeoPoint a(Angle::Degrees(7.70722),
Angle::Degrees(51.052));
const GeoPoint b(Angle::Degrees(11.5228),
Angle::Degrees(50.3972));
WindowProjection projection;
projection.SetScreenOrigin(canvas.GetWidth() / 2, canvas.GetHeight() / 2);
projection.SetGeoLocation(a.Middle(b));
projection.SetScreenSize(canvas.GetSize());
projection.SetScaleFromRadius(fixed(400000));
projection.UpdateScreenBounds();
canvas.SelectBlackPen();
canvas.SelectHollowBrush();
RasterPoint pa = projection.GeoToScreen(a);
canvas.DrawCircle(pa.x, pa.y, 4);
RasterPoint pb = projection.GeoToScreen(b);
canvas.DrawCircle(pb.x, pb.y, 4);
RenderFAISector(canvas, projection, a, b, false, settings);
}
static void
GetPolygonPoints(std::vector<RasterPoint> &pts,
const AirspacePolygon &airspace,
const RasterPoint pt, unsigned radius)
{
GeoBounds bounds = airspace.GetGeoBounds();
GeoPoint center = bounds.GetCenter();
fixed geo_heigth = bounds.GetGeoHeight();
fixed geo_width = bounds.GetGeoWidth();
fixed geo_size = std::max(geo_heigth, geo_width);
WindowProjection projection;
projection.SetScreenSize({radius * 2, radius * 2});
projection.SetScreenOrigin(pt.x, pt.y);
projection.SetGeoLocation(center);
projection.SetScale(fixed(radius * 2) / geo_size);
projection.SetScreenAngle(Angle::Zero());
projection.UpdateScreenBounds();
const SearchPointVector &border = airspace.GetPoints();
pts.reserve(border.size());
for (auto it = border.begin(), it_end = border.end(); it != it_end; ++it)
pts.push_back(projection.GeoToScreen(it->GetLocation()));
}
/**
* Draws the terrain to the given canvas
* @param canvas The drawing canvas
* @param map_projection The Projection
* @param sunazimuth Azimuth of the sun (for terrain shading)
*/
void
TerrainRenderer::Draw(Canvas &canvas,
const WindowProjection &map_projection) const
{
#ifdef ENABLE_OPENGL
const GeoBounds &bounds = raster_renderer.GetBounds();
assert(bounds.IsValid());
const RasterPoint vertices[] = {
map_projection.GeoToScreen(bounds.GetNorthWest()),
map_projection.GeoToScreen(bounds.GetNorthEast()),
map_projection.GeoToScreen(bounds.GetSouthWest()),
map_projection.GeoToScreen(bounds.GetSouthEast()),
};
glVertexPointer(2, GL_VALUE, 0, vertices);
const GLTexture &texture = raster_renderer.BindAndGetTexture();
const PixelSize allocated = texture.GetAllocatedSize();
const int src_x = 0, src_y = 0, src_width = raster_renderer.GetWidth(),
src_height = raster_renderer.GetHeight();
GLfloat x0 = (GLfloat)src_x / allocated.cx;
GLfloat y0 = (GLfloat)src_y / allocated.cy;
GLfloat x1 = (GLfloat)(src_x + src_width) / allocated.cx;
GLfloat y1 = (GLfloat)(src_y + src_height) / allocated.cy;
const GLfloat coord[] = {
x0, y0,
x1, y0,
x0, y1,
x1, y1,
};
OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GLEnable scope(GL_TEXTURE_2D);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, coord);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#else
CopyTo(canvas, map_projection.GetScreenWidth(),
map_projection.GetScreenHeight());
#endif
}
void
MapOverlayBitmap::Draw(Canvas &canvas,
const WindowProjection &projection) noexcept
{
if (!simple_bounds.Overlaps(projection.GetScreenBounds()))
/* not visible, outside of screen area */
return;
auto clipped = Clip(bounds, projection.GetScreenBounds());
if (clipped.empty())
return;
GLTexture &texture = *bitmap.GetNative();
const PixelSize allocated = texture.GetAllocatedSize();
const double x_factor = double(texture.GetWidth()) / allocated.cx;
const double y_factor = double(texture.GetHeight()) / allocated.cy;
Point2D<GLfloat> coord[16];
BulkPixelPoint vertices[16];
const ScopeVertexPointer vp(vertices);
texture.Bind();
const ScopeTextureConstantAlpha blend(use_bitmap_alpha, alpha);
glEnableVertexAttribArray(OpenGL::Attribute::TEXCOORD);
glVertexAttribPointer(OpenGL::Attribute::TEXCOORD, 2, GL_FLOAT, GL_FALSE,
0, coord);
for (const auto &polygon : clipped) {
const auto &ring = polygon.outer();
size_t n = ring.size();
if (ring.front() == ring.back())
--n;
for (size_t i = 0; i < n; ++i) {
const auto v = GeoFrom2D(ring[i]);
auto p = MapInQuadrilateral(bounds, v);
coord[i].x = p.x * x_factor;
coord[i].y = p.y * y_factor;
if (bitmap.IsFlipped())
coord[i].y = 1 - coord[i].y;
vertices[i] = projection.GeoToScreen(v);
}
glDrawArrays(GL_TRIANGLE_FAN, 0, n);
}
glDisableVertexAttribArray(OpenGL::Attribute::TEXCOORD);
}
void
TrackLineRenderer::DrawProjected(Canvas &canvas,
const WindowProjection &projection,
const NMEAInfo &basic,
const DerivedInfo &calculated,
const MapSettings &settings,
bool wind_relative)
{
// projection.GetMapScale() <= 6000;
GeoPoint traildrift;
if (calculated.wind_available && !wind_relative) {
GeoPoint tp1 = FindLatitudeLongitude(basic.location,
calculated.wind.bearing,
calculated.wind.norm);
traildrift = basic.location - tp1;
} else {
traildrift = GeoPoint(Angle::Zero(), Angle::Zero());
}
auto dt = ARC_SWEEP/ARC_STEPS/
std::max(MIN_RATE,calculated.turn_rate_heading_smoothed.Absolute());
Angle heading = basic.attitude.heading;
GeoPoint loc = basic.location;
RasterPoint pts[ARC_STEPS+1];
pts[0] = projection.GeoToScreen(loc);
int i = 1;
while (i <= ARC_STEPS) {
GeoVector v(basic.true_airspeed*dt, heading);
loc = v.EndPoint(loc.Parametric(traildrift, dt));
pts[i] = projection.GeoToScreen(loc);
heading += calculated.turn_rate_heading_smoothed*dt;
i++;
}
canvas.Select(look.track_line_pen);
canvas.DrawPolyline(pts, i);
}
void
TrailRenderer::Draw(Canvas &canvas, const WindowProjection &projection,
const ContestTraceVector &trace)
{
points.GrowDiscard(trace.size());
unsigned n = 0;
for (auto i = trace.begin(), end = trace.end(); i != end; ++i)
points[n++] = projection.GeoToScreen(i->get_location());
canvas.DrawPolyline(points.begin(), n);
}
void
RenderFAISector(Canvas &canvas, const WindowProjection &projection,
const GeoPoint &pt1, const GeoPoint &pt2,
bool reverse, const FAITriangleSettings &settings)
{
GeoPoint geo_points[FAI_TRIANGLE_SECTOR_MAX];
GeoPoint *geo_end = GenerateFAITriangleArea(geo_points, pt1, pt2,
reverse, settings);
GeoPoint clipped[FAI_TRIANGLE_SECTOR_MAX * 3],
*clipped_end = clipped +
GeoClip(projection.GetScreenBounds().Scale(fixed(1.1)))
.ClipPolygon(clipped, geo_points, geo_end - geo_points);
RasterPoint points[FAI_TRIANGLE_SECTOR_MAX], *p = points;
for (GeoPoint *geo_i = clipped; geo_i != clipped_end;)
*p++ = projection.GeoToScreen(*geo_i++);
canvas.DrawPolygon(points, p - points);
}
static void
DrawPolygon(Canvas &canvas, const AirspacePolygon &airspace,
const RasterPoint pt, unsigned radius)
{
if (IsAncientHardware()) {
canvas.Rectangle(pt.x - radius, pt.y - radius,
pt.x + radius, pt.y + radius);
return;
}
GeoBounds bounds = airspace.GetGeoBounds();
GeoPoint center = bounds.GetCenter();
fixed geo_heigth = GeoPoint(center.longitude, bounds.north).Distance(
GeoPoint(center.longitude, bounds.south));
fixed geo_width = GeoPoint(bounds.west, center.latitude).Distance(
GeoPoint(bounds.east, center.latitude));
fixed geo_size = std::max(geo_heigth, geo_width);
WindowProjection projection;
projection.SetScreenSize(radius * 2, radius * 2);
projection.SetScreenOrigin(pt.x, pt.y);
projection.SetGeoLocation(center);
projection.SetScale(fixed(radius * 2) / geo_size);
projection.SetScreenAngle(Angle::Zero());
projection.UpdateScreenBounds();
const SearchPointVector &border = airspace.GetPoints();
std::vector<RasterPoint> pts;
pts.reserve(border.size());
for (auto it = border.begin(), it_end = border.end(); it != it_end; ++it)
pts.push_back(projection.GeoToScreen(it->get_location()));
canvas.polygon(&pts[0], (unsigned)pts.size());
}
void
TrailRenderer::Draw(Canvas &canvas, const TraceComputer &trace_computer,
const WindowProjection &projection, unsigned min_time,
bool enable_traildrift, const RasterPoint pos,
const NMEAInfo &basic, const DerivedInfo &calculated,
const MapSettings &settings)
{
if (settings.trail_length == TRAIL_OFF)
return;
if (!LoadTrace(trace_computer, min_time, projection))
return;
if (!calculated.wind_available)
enable_traildrift = false;
GeoPoint traildrift;
if (enable_traildrift) {
GeoPoint tp1 = FindLatitudeLongitude(basic.location,
calculated.wind.bearing,
calculated.wind.norm);
traildrift = basic.location - tp1;
}
fixed value_max, value_min;
if (settings.snail_type == stAltitude) {
value_max = fixed(1000);
value_min = fixed(500);
for (auto it = trace.begin(); it != trace.end(); ++it) {
value_max = max(it->GetAltitude(), value_max);
value_min = min(it->GetAltitude(), value_min);
}
} else {
value_max = fixed(0.75);
value_min = fixed(-2.0);
for (auto it = trace.begin(); it != trace.end(); ++it) {
value_max = max(it->GetVario(), value_max);
value_min = min(it->GetVario(), value_min);
}
value_max = min(fixed(7.5), value_max);
value_min = max(fixed(-5.0), value_min);
}
bool scaled_trail = settings.snail_scaling_enabled &&
projection.GetMapScale() <= fixed_int_constant(6000);
const GeoBounds bounds = projection.GetScreenBounds().Scale(fixed_four);
RasterPoint last_point;
bool last_valid = false;
for (auto it = trace.begin(), end = trace.end(); it != end; ++it) {
const GeoPoint gp = enable_traildrift
? it->get_location().Parametric(traildrift,
it->CalculateDrift(basic.time))
: it->get_location();
if (!bounds.IsInside(gp)) {
/* the point is outside of the MapWindow; don't paint it */
last_valid = false;
continue;
}
RasterPoint pt = projection.GeoToScreen(gp);
if (last_valid) {
if (settings.snail_type == stAltitude) {
unsigned index((it->GetAltitude() - value_min) / (value_max - value_min)
* (TrailLook::NUMSNAILCOLORS - 1));
index = max(0u, min(TrailLook::NUMSNAILCOLORS - 1, index));
canvas.Select(look.hpSnail[index]);
} else {
const fixed colour_vario = negative(it->GetVario())
? - it->GetVario() / value_min
: it->GetVario() / value_max ;
if (!scaled_trail)
canvas.Select(look.hpSnail[GetSnailColorIndex(colour_vario)]);
else
canvas.Select(look.hpSnailVario[GetSnailColorIndex(colour_vario)]);
}
canvas.line_piece(last_point, pt);
}
last_point = pt;
last_valid = true;
}
canvas.line(last_point, pos);
}
void
TopographyFileRenderer::PaintLabels(Canvas &canvas,
const WindowProjection &projection,
LabelBlock &label_block)
{
if (file.IsEmpty())
return;
fixed map_scale = projection.GetMapScale();
if (!file.IsVisible(map_scale) || !file.IsLabelVisible(map_scale))
return;
UpdateVisibleShapes(projection);
if (visible_labels.empty())
return;
// TODO code: only draw inside screen!
// this will save time with rendering pixmaps especially
// we already do an outer visibility test, but may need a test
// in screen coords
canvas.Select(file.IsLabelImportant(map_scale) ?
Fonts::map_label_important : Fonts::map_label);
canvas.SetTextColor(Color(0x20, 0x20, 0x20));
canvas.SetBackgroundTransparent();
// get drawing info
int iskip = file.GetSkipSteps(map_scale);
#ifdef ENABLE_OPENGL
Matrix2D m1;
m1.Translate(projection.GetScreenOrigin());
m1.Rotate(projection.GetScreenAngle());
m1.Scale(projection.GetScale());
#endif
// Iterate over all shapes in the file
for (auto it = visible_labels.begin(), end = visible_labels.end();
it != end; ++it) {
const XShape &shape = **it;
if (!projection.GetScreenBounds().Overlaps(shape.get_bounds()))
continue;
// Skip shapes without a label
const TCHAR *label = shape.get_label();
if (label == NULL)
continue;
const unsigned short *lines = shape.get_lines();
const unsigned short *end_lines = lines + shape.get_number_of_lines();
#ifdef ENABLE_OPENGL
const ShapePoint *points = shape.get_points();
Matrix2D m2(m1);
m2.Translatex(shape.shape_translation(projection.GetGeoLocation()));
#else
const GeoPoint *points = shape.get_points();
#endif
for (; lines < end_lines; ++lines) {
int minx = canvas.get_width();
int miny = canvas.get_height();
#ifdef ENABLE_OPENGL
const ShapePoint *end = points + *lines;
#else
const GeoPoint *end = points + *lines;
#endif
for (; points < end; points += iskip) {
#ifdef ENABLE_OPENGL
RasterPoint pt = m2.Apply(*points);
#else
RasterPoint pt = projection.GeoToScreen(*points);
#endif
if (pt.x <= minx) {
minx = pt.x;
miny = pt.y;
}
}
points = end;
minx += 2;
miny += 2;
PixelSize tsize = canvas.CalcTextSize(label);
PixelRect brect;
brect.left = minx;
brect.right = brect.left + tsize.cx;
brect.top = miny;
brect.bottom = brect.top + tsize.cy;
if (!label_block.check(brect))
continue;
canvas.text(minx, miny, label);
}
}
}
void
TopographyFileRenderer::Paint(Canvas &canvas,
const WindowProjection &projection)
{
if (file.IsEmpty())
return;
fixed map_scale = projection.GetMapScale();
if (!file.IsVisible(map_scale))
return;
UpdateVisibleShapes(projection);
if (visible_shapes.empty())
return;
// TODO code: only draw inside screen!
// this will save time with rendering pixmaps especially
// we already do an outer visibility test, but may need a test
// in screen coords
#ifdef ENABLE_OPENGL
pen.Set();
brush.Set();
#else
shape_renderer.Configure(&pen, &brush);
#endif
// get drawing info
#ifdef ENABLE_OPENGL
const unsigned level = file.GetThinningLevel(map_scale);
const unsigned min_distance = file.GetMinimumPointDistance(level)
/ Layout::Scale(1);
#ifndef HAVE_GLES
float opengl_matrix[16];
glGetFloatv(GL_MODELVIEW_MATRIX, opengl_matrix);
#endif
glPushMatrix();
fixed angle = projection.GetScreenAngle().Degrees();
fixed scale = projection.GetScale();
const RasterPoint &screen_origin = projection.GetScreenOrigin();
#ifdef HAVE_GLES
#ifdef FIXED_MATH
GLfixed fixed_angle = angle.as_glfixed();
GLfixed fixed_scale = scale.as_glfixed_scale();
#else
GLfixed fixed_angle = angle * (1<<16);
GLfixed fixed_scale = scale * (1LL<<32);
#endif
glTranslatex((int)screen_origin.x << 16, (int)screen_origin.y << 16, 0);
glRotatex(fixed_angle, 0, 0, -(1<<16));
glScalex(fixed_scale, fixed_scale, 1<<16);
#else
glTranslatef(screen_origin.x, screen_origin.y, 0.);
glRotatef((GLfloat)angle, 0., 0., -1.);
glScalef((GLfloat)scale, (GLfloat)scale, 1.);
#endif
#else // !ENABLE_OPENGL
const GeoClip clip(projection.GetScreenBounds().Scale(fixed(1.1)));
AllocatedArray<GeoPoint> geo_points;
int iskip = file.GetSkipSteps(map_scale);
#endif
for (auto it = visible_shapes.begin(), end = visible_shapes.end();
it != end; ++it) {
const XShape &shape = **it;
if (!projection.GetScreenBounds().Overlaps(shape.get_bounds()))
continue;
#ifdef ENABLE_OPENGL
const ShapePoint *points = shape.get_points();
const ShapePoint translation =
shape.shape_translation(projection.GetGeoLocation());
glPushMatrix();
#ifdef HAVE_GLES
glTranslatex(translation.x, translation.y, 0);
#else
glTranslatef(translation.x, translation.y, 0.);
#endif
#else // !ENABLE_OPENGL
const unsigned short *lines = shape.get_lines();
const unsigned short *end_lines = lines + shape.get_number_of_lines();
const GeoPoint *points = shape.get_points();
#endif
switch (shape.get_type()) {
case MS_SHAPE_NULL:
break;
case MS_SHAPE_POINT:
#ifdef ENABLE_OPENGL
#ifdef HAVE_GLES
PaintPoint(canvas, projection, shape, NULL);
#else
PaintPoint(canvas, projection, shape, opengl_matrix);
#endif
#else // !ENABLE_OPENGL
PaintPoint(canvas, projection, lines, end_lines, points);
#endif
break;
case MS_SHAPE_LINE:
{
#ifdef ENABLE_OPENGL
#ifdef HAVE_GLES
glVertexPointer(2, GL_FIXED, 0, &points[0].x);
#else
glVertexPointer(2, GL_INT, 0, &points[0].x);
#endif
const GLushort *indices, *count;
if (level == 0 ||
(indices = shape.get_indices(level, min_distance, count)) == NULL) {
count = shape.get_lines();
const GLushort *end_count = count + shape.get_number_of_lines();
for (int offset = 0; count < end_count; offset += *count++)
glDrawArrays(GL_LINE_STRIP, offset, *count);
} else {
const GLushort *end_count = count + shape.get_number_of_lines();
for (; count < end_count; indices += *count++)
glDrawElements(GL_LINE_STRIP, *count, GL_UNSIGNED_SHORT, indices);
}
#else // !ENABLE_OPENGL
for (; lines < end_lines; ++lines) {
unsigned msize = *lines;
shape_renderer.Begin(msize);
const GeoPoint *end = points + msize - 1;
for (; points < end; ++points)
shape_renderer.AddPointIfDistant(projection.GeoToScreen(*points));
// make sure we always draw the last point
shape_renderer.AddPoint(projection.GeoToScreen(*points));
shape_renderer.FinishPolyline(canvas);
}
#endif
}
break;
case MS_SHAPE_POLYGON:
#ifdef ENABLE_OPENGL
{
const GLushort *index_count;
const GLushort *triangles = shape.get_indices(level, min_distance,
index_count);
#ifdef HAVE_GLES
glVertexPointer(2, GL_FIXED, 0, &points[0].x);
#else
glVertexPointer(2, GL_INT, 0, &points[0].x);
#endif
glDrawElements(GL_TRIANGLE_STRIP, *index_count, GL_UNSIGNED_SHORT,
triangles);
}
#else // !ENABLE_OPENGL
for (; lines < end_lines; ++lines) {
unsigned msize = *lines / iskip;
/* copy all polygon points into the geo_points array and clip
them, to avoid integer overflows (as RasterPoint may store
only 16 bit integers on some platforms) */
geo_points.GrowDiscard(msize * 3);
for (unsigned i = 0; i < msize; ++i)
geo_points[i] = points[i * iskip];
msize = clip.ClipPolygon(geo_points.begin(),
geo_points.begin(), msize);
if (msize < 3)
continue;
shape_renderer.Begin(msize);
for (unsigned i = 0; i < msize; ++i) {
GeoPoint g = geo_points[i];
shape_renderer.AddPointIfDistant(projection.GeoToScreen(g));
}
shape_renderer.FinishPolygon(canvas);
}
#endif
break;
}
#ifdef ENABLE_OPENGL
glPopMatrix();
#endif
}
#ifdef ENABLE_OPENGL
glPopMatrix();
#else
shape_renderer.Commit();
#endif
}
void
TrailRenderer::Draw(Canvas &canvas, const TraceComputer &trace_computer,
const WindowProjection &projection, unsigned min_time,
bool enable_traildrift, const RasterPoint pos,
const NMEAInfo &basic, const DerivedInfo &calculated,
const TrailSettings &settings)
{
if (settings.length == TrailSettings::Length::OFF)
return;
if (!LoadTrace(trace_computer, min_time, projection))
return;
if (!calculated.wind_available)
enable_traildrift = false;
GeoPoint traildrift;
if (enable_traildrift) {
GeoPoint tp1 = FindLatitudeLongitude(basic.location,
calculated.wind.bearing,
calculated.wind.norm);
traildrift = basic.location - tp1;
}
fixed value_max, value_min;
GetMinMax(value_min, value_max, settings.type, trace);
bool scaled_trail = settings.scaling_enabled &&
projection.GetMapScale() <= fixed_int_constant(6000);
const GeoBounds bounds = projection.GetScreenBounds().Scale(fixed_four);
RasterPoint last_point;
bool last_valid = false;
for (auto it = trace.begin(), end = trace.end(); it != end; ++it) {
const GeoPoint gp = enable_traildrift
? it->GetLocation().Parametric(traildrift,
it->CalculateDrift(basic.time))
: it->GetLocation();
if (!bounds.IsInside(gp)) {
/* the point is outside of the MapWindow; don't paint it */
last_valid = false;
continue;
}
RasterPoint pt = projection.GeoToScreen(gp);
if (last_valid) {
if (settings.type == TrailSettings::Type::ALTITUDE) {
unsigned index((it->GetAltitude() - value_min) / (value_max - value_min)
* (TrailLook::NUMSNAILCOLORS - 1));
index = max(0u, min(TrailLook::NUMSNAILCOLORS - 1, index));
canvas.Select(look.trail_pens[index]);
canvas.DrawLinePiece(last_point, pt);
} else {
const fixed colour_vario = negative(it->GetVario())
? - it->GetVario() / value_min
: it->GetVario() / value_max ;
unsigned color_index = GetSnailColorIndex(colour_vario);
if (negative(it->GetVario()) &&
(settings.type == TrailSettings::Type::VARIO_1_DOTS ||
settings.type == TrailSettings::Type::VARIO_2_DOTS)) {
canvas.SelectNullPen();
canvas.Select(look.trail_brushes[color_index]);
canvas.DrawCircle((pt.x + last_point.x) / 2, (pt.y + last_point.y) / 2,
look.trail_widths[color_index]);
} else {
if (!scaled_trail)
canvas.Select(look.trail_pens[color_index]);
else
canvas.Select(look.scaled_trail_pens[color_index]);
canvas.DrawLinePiece(last_point, pt);
}
}
}
last_point = pt;
last_valid = true;
}
if (last_valid)
canvas.DrawLine(last_point, pos);
}
void
PaintTask(Canvas &canvas, const WindowProjection &projection,
const OrderedTask &task,
const GeoPoint &location,
const MapSettings &settings_map,
const TaskLook &task_look,
const AirspaceLook &airspace_look,
const RasterTerrain *terrain, const Airspaces *airspaces,
bool fai_sectors,
int highlight_index)
{
BackgroundRenderer background;
background.SetTerrain(terrain);
background.Draw(canvas, projection, settings_map.terrain);
if (airspaces != NULL) {
AirspaceRenderer airspace_renderer(airspace_look);
airspace_renderer.SetAirspaces(airspaces);
#ifndef ENABLE_OPENGL
BufferCanvas stencil_canvas;
stencil_canvas.Create(canvas);
#endif
airspace_renderer.Draw(canvas,
#ifndef ENABLE_OPENGL
stencil_canvas,
#endif
projection, settings_map.airspace);
}
#ifdef ENABLE_OPENGL
/* desaturate the map background, to focus on the task */
canvas.FadeToWhite(0xc0);
#endif
if (fai_sectors && IsFAITriangleApplicable(task)) {
static constexpr Color fill_color = COLOR_YELLOW;
#if defined(ENABLE_OPENGL) || defined(USE_MEMORY_CANVAS)
#ifdef ENABLE_OPENGL
const ScopeAlphaBlend alpha_blend;
#endif
canvas.Select(Brush(fill_color.WithAlpha(40)));
canvas.Select(Pen(1, COLOR_BLACK.WithAlpha(80)));
RenderFAISectors(canvas, projection, task);
#else
BufferCanvas buffer_canvas;
buffer_canvas.Create(canvas);
buffer_canvas.ClearWhite();
#ifdef HAVE_HATCHED_BRUSH
buffer_canvas.Select(airspace_look.brushes[3]);
buffer_canvas.SetTextColor(fill_color);
buffer_canvas.SetBackgroundColor(COLOR_WHITE);
#else
buffer_canvas.Select(Brush(fill_color));
#endif
buffer_canvas.SelectNullPen();
RenderFAISectors(buffer_canvas, projection, task);
canvas.CopyAnd(buffer_canvas);
canvas.SelectHollowBrush();
canvas.SelectBlackPen();
RenderFAISectors(canvas, projection, task);
#endif
}
OZRenderer ozv(task_look, airspace_look, settings_map.airspace);
TaskPointRenderer tpv(canvas, projection, task_look,
task.GetTaskProjection(),
ozv, false, TaskPointRenderer::NONE,
location);
TaskRenderer dv(tpv, projection.GetScreenBounds());
dv.Draw(task);
// highlight a task point
if (highlight_index >= 0 && highlight_index < (int) task.TaskSize()) {
/* TODO: clumsy way of highlighting. maybe it should be done by
* painting the task point with a different pen and brush,
* e.g. red, 4px wide
*/
auto pt = projection.GeoToScreen(task.GetPoint(highlight_index).
GetLocation());
canvas.Select(task_look.highlight_pen);
canvas.DrawLine(pt.x - 7, pt.y - 7, pt.x + 7, pt.y + 7);
canvas.DrawLine(pt.x + 7, pt.y - 7, pt.x - 7, pt.y + 7);
}
}
void
TrailRenderer::Draw(Canvas &canvas, const TraceComputer &trace_computer,
const WindowProjection &projection, unsigned min_time,
bool enable_traildrift, const RasterPoint pos,
const NMEAInfo &basic, const DerivedInfo &calculated,
const TrailSettings &settings)
{
if (settings.length == TrailSettings::Length::OFF)
return;
if (!LoadTrace(trace_computer, min_time, projection))
return;
if (!calculated.wind_available)
enable_traildrift = false;
GeoPoint traildrift;
if (enable_traildrift) {
GeoPoint tp1 = FindLatitudeLongitude(basic.location,
calculated.wind.bearing,
calculated.wind.norm);
traildrift = basic.location - tp1;
}
auto minmax = GetMinMax(settings.type, trace);
auto value_min = minmax.first;
auto value_max = minmax.second;
bool scaled_trail = settings.scaling_enabled &&
projection.GetMapScale() <= 6000;
const GeoBounds bounds = projection.GetScreenBounds().Scale(4);
RasterPoint last_point = RasterPoint(0, 0);
bool last_valid = false;
for (auto it = trace.begin(), end = trace.end(); it != end; ++it) {
const GeoPoint gp = enable_traildrift
? it->GetLocation().Parametric(traildrift,
it->CalculateDrift(basic.time))
: it->GetLocation();
if (!bounds.IsInside(gp)) {
/* the point is outside of the MapWindow; don't paint it */
last_valid = false;
continue;
}
RasterPoint pt = projection.GeoToScreen(gp);
if (last_valid) {
if (settings.type == TrailSettings::Type::ALTITUDE) {
unsigned index = GetAltitudeColorIndex(it->GetAltitude(),
value_min, value_max);
canvas.Select(look.trail_pens[index]);
canvas.DrawLinePiece(last_point, pt);
} else {
unsigned color_index = GetSnailColorIndex(it->GetVario(),
value_min, value_max);
if (it->GetVario() < 0 &&
(settings.type == TrailSettings::Type::VARIO_1_DOTS ||
settings.type == TrailSettings::Type::VARIO_2_DOTS ||
settings.type == TrailSettings::Type::VARIO_DOTS_AND_LINES)) {
canvas.SelectNullPen();
canvas.Select(look.trail_brushes[color_index]);
canvas.DrawCircle((pt.x + last_point.x) / 2, (pt.y + last_point.y) / 2,
look.trail_widths[color_index]);
} else {
// positive vario case
if (settings.type == TrailSettings::Type::VARIO_DOTS_AND_LINES) {
canvas.Select(look.trail_brushes[color_index]);
canvas.Select(look.trail_pens[color_index]); //fixed-width pen
canvas.DrawCircle((pt.x + last_point.x) / 2, (pt.y + last_point.y) / 2,
look.trail_widths[color_index]);
} else if (scaled_trail)
// width scaled to vario
canvas.Select(look.scaled_trail_pens[color_index]);
else
// fixed-width pen
canvas.Select(look.trail_pens[color_index]);
canvas.DrawLinePiece(last_point, pt);
}
}
}
last_point = pt;
last_valid = true;
}
if (last_valid)
canvas.DrawLine(last_point, pos);
}
void
AirspaceLabelRenderer::DrawInternal(Canvas &canvas,
#ifndef ENABLE_OPENGL
Canvas &stencil_canvas,
#endif
const WindowProjection &projection,
const AirspaceRendererSettings &settings,
const AirspaceWarningCopy &awc,
const AirspacePredicate &visible,
const AirspaceWarningConfig &config)
{
AirspaceLabelList labels;
for (const auto &i : airspaces->QueryWithinRange(projection.GetGeoScreenCenter(),
projection.GetScreenDistanceMeters())) {
const AbstractAirspace &airspace = i.GetAirspace();
if (visible(airspace))
labels.Add(airspace.GetCenter(), airspace.GetType(), airspace.GetBase(),
airspace.GetTop());
}
if(settings.label_selection == AirspaceRendererSettings::LabelSelection::ALL)
{
labels.Sort(config);
// default paint settings
canvas.SetTextColor(look.label_text_color);
canvas.Select(*look.name_font);
canvas.Select(look.label_pen);
canvas.Select(look.label_brush);
canvas.SetBackgroundTransparent();
// draw
TCHAR topText[NAME_SIZE + 1];
TCHAR baseText[NAME_SIZE + 1];
for (const auto &label : labels) {
// size of text
AirspaceFormatter::FormatAltitudeShort(topText, label.top, false);
PixelSize topSize = canvas.CalcTextSize(topText);
AirspaceFormatter::FormatAltitudeShort(baseText, label.base, false);
PixelSize baseSize = canvas.CalcTextSize(baseText);
int labelWidth = std::max(topSize.cx, baseSize.cx) +
2 * Layout::GetTextPadding();
int labelHeight = topSize.cy + baseSize.cy;
// box
const auto pos = projection.GeoToScreen(label.pos);
PixelRect rect;
rect.left = pos.x - labelWidth / 2;
rect.top = pos.y;
rect.right = rect.left + labelWidth;
rect.bottom = rect.top + labelHeight;
canvas.Rectangle(rect.left, rect.top, rect.right, rect.bottom);
#ifdef USE_GDI
canvas.DrawLine(rect.left + Layout::GetTextPadding(),
rect.top + labelHeight / 2,
rect.right - Layout::GetTextPadding(),
rect.top + labelHeight / 2);
#else
canvas.DrawHLine(rect.left + Layout::GetTextPadding(),
rect.right - Layout::GetTextPadding(),
rect.top + labelHeight / 2, look.label_pen.GetColor());
#endif
// top text
int x = rect.right - Layout::GetTextPadding() - topSize.cx;
int y = rect.top;
canvas.DrawText(x, y, topText);
// base text
x = rect.right - Layout::GetTextPadding() - baseSize.cx;
y = rect.bottom - baseSize.cy;
canvas.DrawText(x, y, baseText);
}
}
}
