//
// Draw the reachable SHADED terrain glide amoeba
// This is not the outlined perimeter
//
void MapWindow::DrawTerrainAbove(LKSurface& Surface, const RECT& rc) {
// Lets try to make it better understandable with a goto.
// If CAR or GA users dont want amoeba, they should disable it in config.
// Otherwise we should paint it, not hide it automatically!
// Here are the conditions we print this amoeba, otherwise we return;
// First is we are in SIM mode and we changed the altitude;
if (SIMMODE && DerivedDrawInfo.AltitudeAGL>100) goto _doit;
// Second, if we are flying
if (DerivedDrawInfo.Flying) goto _doit;
if (DerivedDrawInfo.GlideFootPrint_valid) goto _doit;
return;
_doit:
#ifndef ENABLE_OPENGL
LKColor whitecolor = LKColor(0xff,0xff,0xff);
LKColor graycolor = LKColor(0xf0,0xf0,0xf0);
LKColor origcolor = TempSurface.SetTextColor(whitecolor);
TempSurface.SetBackgroundTransparent();
TempSurface.SetBkColor(whitecolor);
TempSurface.SelectObject(LK_WHITE_PEN);
TempSurface.SetTextColor(graycolor);
TempSurface.SelectObject(hAboveTerrainBrush);
TempSurface.Rectangle(rc.left,rc.top,rc.right,rc.bottom);
TempSurface.SelectObject(LK_WHITE_PEN);
TempSurface.SelectObject(LKBrush_White);
TempSurface.Polygon(Groundline.data(),Groundline.size());
// need to do this to prevent drawing of colored outline
TempSurface.SelectObject(LK_WHITE_PEN);
#ifdef HAVE_HATCHED_BRUSH
Surface.TransparentCopy(
rc.left,rc.top,
rc.right-rc.left,rc.bottom-rc.top,
TempSurface,
rc.left,rc.top);
#else
Surface.AlphaBlendNotWhite(rc, TempSurface, rc, 255/2);
#endif
// restore original color
TempSurface.SetTextColor(origcolor);
TempSurface.SetBackgroundOpaque();
#else
Canvas& canvas = Surface;
const GLEnable<GL_STENCIL_TEST> stencil;
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glDepthMask(GL_FALSE);
glStencilFunc(GL_NEVER, 1, 0xFF);
glStencilOp(GL_REPLACE, GL_KEEP, GL_KEEP); // draw 1s on test fail (always)
// draw stencil pattern
glStencilMask(0xFF);
glClear(GL_STENCIL_BUFFER_BIT); // needs mask=0xFF
ScopeVertexPointer vp(Groundline.data());
glDrawArrays(GL_TRIANGLE_FAN, 0, Groundline.size());
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glDepthMask(GL_TRUE);
glStencilMask(0x00);
// draw where stencil's value is 0
glStencilFunc(GL_EQUAL, 0, 0xFF);
canvas.DrawFilledRectangle(rc.left,rc.top,rc.right,rc.bottom, AboveTerrainColor);
#endif
}
void MapWindow::DrawTaskAAT(LKSurface& Surface, const RECT& rc) {
int i;
double tmp1 = 0.0;
if (WayPointList.empty()) return;
if (!AATEnabled) return;
LockTaskData(); // protect from external task changes
/**********************************************/
/* Check if not Validated Waypoint is visible */
bool bDraw = false;
int maxTp = 1;
rectObj rcrect = (rectObj){(double) rc.left, (double) rc.top, (double) rc.right, (double) rc.bottom};
RECT rcDraw = (RECT){rc.right, rc.bottom, rc.left, rc.top};
for (maxTp = std::max(1, ActiveTaskPoint); ValidTaskPoint(maxTp + 1); ++maxTp) {
if (ValidTaskPoint(maxTp)) {
int Type = 0;
double Radius = 0.;
GetTaskSectorParameter(maxTp, &Type, &Radius);
switch (Type) {
case CONE:
case CIRCLE:
tmp1 = Task[maxTp].AATCircleRadius * zoom.ResScaleOverDistanceModify();
break;
case SECTOR:
tmp1 = Task[maxTp].AATSectorRadius * zoom.ResScaleOverDistanceModify();
break;
default:
tmp1 = 0.0;
break;
}
}
PixelScalar x = WayPointList[Task[maxTp].Index].Screen.x;
PixelScalar y = WayPointList[Task[maxTp].Index].Screen.y;
rectObj rect = (rectObj){x - tmp1, y - tmp1, x + tmp1, y + tmp1};
if (msRectOverlap(&rect, &rcrect) == MS_TRUE) {
rcDraw.top = std::min((PixelScalar)rect.miny, rcDraw.top);
rcDraw.bottom = std::max((PixelScalar) rect.maxy, rcDraw.bottom);
rcDraw.left = std::min((PixelScalar) rect.minx, rcDraw.left);
rcDraw.right = std::max((PixelScalar) rect.maxx, rcDraw.right);
bDraw = true;
}
}
/**********************************************/
if (bDraw) { // Draw Only if one is Visible
#ifdef USE_GDI
rcDraw.top = std::max(rc.top, rcDraw.top);
rcDraw.bottom = std::min(rc.bottom, rcDraw.bottom);
rcDraw.left = std::max(rc.left, rcDraw.left);
rcDraw.right = std::min(rc.right, rcDraw.right);
LKColor whitecolor = RGB_WHITE;
LKColor origcolor = TempSurface.SetTextColor(whitecolor);
const auto oldpen = TempSurface.SelectObject(LK_WHITE_PEN);
const auto oldbrush = TempSurface.SelectObject(LKBrush_White);
if(LKSurface::AlphaBlendSupported()) {
// copy original bitmap into temp (for saving fully transparent areas)
TempSurface.Copy(rcDraw.left, rcDraw.top,
rcDraw.right - rcDraw.left, rcDraw.bottom - rcDraw.top,
Surface, rcDraw.left, rcDraw.top);
} else {
TempSurface.Rectangle(rcDraw.left, rcDraw.top, rcDraw.right, rcDraw.bottom);
}
TempSurface.SelectObject(LK_NULL_PEN);
#ifdef HAVE_HATCHED_BRUSH
TempSurface.SelectObject(hAirspaceBrushes[iAirspaceBrush[AATASK]]);
#else
TempSurface.SelectObject(LKBrush_Yellow);
#endif
// this color is used as the black bit
TempSurface.SetTextColor(Colours[iAirspaceColour[AATASK]]);
// this color is the transparent bit
TempSurface.SetBkColor(whitecolor);
LKSurface & AliasSurface = TempSurface;
#else
LKSurface & AliasSurface = Surface;
Surface.SelectObject(LKBrush(LKColor(255U,255U,0U).WithAlpha(AlphaLevel)));
#endif
for (i = maxTp - 1; i > std::max(0, ActiveTaskPoint - 1); i--) {
if (ValidTaskPoint(i)) {
int Type = 0;
double Radius = 0.;
GetTaskSectorParameter(i, &Type, &Radius);
switch (Type) {
case CONE:
case CIRCLE:
tmp1 = Radius * zoom.ResScaleOverDistanceModify();
AliasSurface.DrawCircle(
WayPointList[Task[i].Index].Screen.x,
WayPointList[Task[i].Index].Screen.y,
(int) tmp1, rc, true);
break;
case SECTOR:
tmp1 = Radius * zoom.ResScaleOverDistanceModify();
AliasSurface.Segment(
WayPointList[Task[i].Index].Screen.x,
WayPointList[Task[i].Index].Screen.y, (int) tmp1, rc,
Task[i].AATStartRadial - DisplayAngle,
Task[i].AATFinishRadial - DisplayAngle);
break;
}
}
}
#ifdef USE_GDI
// restore original color
TempSurface.SetTextColor(origcolor);
TempSurface.SelectObject(oldpen);
TempSurface.SelectObject(oldbrush);
if(!Surface.AlphaBlend(rcDraw, TempSurface,rcDraw, AlphaLevel)) {
// if AlphaBlend is not supported, use TransparentBld
Surface.TransparentCopy(
rcDraw.left, rcDraw.top,
rcDraw.right - rcDraw.left, rcDraw.bottom - rcDraw.top,
TempSurface,
rcDraw.left, rcDraw.top);
}
#endif
}
{
UnlockTaskData();
}
}