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();
}
}
// TODO code: optimise airspace drawing (same as DrawAirSpace())
// draw airspace using alpha blending
//static
void MapWindow::DrawTptAirSpace(LKSurface& Surface, const RECT& rc) {
// since standard GDI functions (brushes, pens...) ignore alpha octet in ARGB
// color value and don't set it in the resulting bitmap, we cannot use
// perpixel alpha blending, instead we use global opacity for alpha blend
// (same opacity for all pixels); for fully "transparent" areas (without
// airspace) we must copy destination bitmap into source bitmap first so that
// alpha blending of such areas results in the same pixels as origin pixels
// in destination
CAirspaceList::const_iterator it;
CAirspaceList::const_reverse_iterator itr;
const CAirspaceList& airspaces_to_draw = CAirspaceManager::Instance().GetNearAirspacesRef();
int airspace_type;
bool found = false;
bool borders_only = (GetAirSpaceFillType() == asp_fill_ablend_borders);
#if ASPOUTLINE
#else
bool outlined_only=(GetAirSpaceFillType()==asp_fill_border_only);
#endif
static bool asp_selected_flash = false;
asp_selected_flash = !asp_selected_flash;
int nDC1 = hdcbuffer.SaveState();
int nDC2 = hdcMask.SaveState();
int nDC3 = hdcTempAsp.SaveState();
#ifdef AIRSPACE_BORDER
DrawAirSpaceBorders(Surface, rc);
#endif
// Draw airspace area
if (1) {
CCriticalSection::CGuard guard(CAirspaceManager::Instance().MutexRef());
if (borders_only) {
// Draw in reverse order!
// The idea behind this, is lower top level airspaces are smaller. (statistically)
// They have to be draw later, because inside border area have to be in correct color,
// not the color of the bigger airspace above this small one.
for (itr=airspaces_to_draw.rbegin(); itr != airspaces_to_draw.rend(); ++itr) {
if ((*itr)->DrawStyle() == adsFilled) {
airspace_type = (*itr)->Type();
if (!found) {
found = true;
ClearTptAirSpace(Surface, rc);
}
// set filling brush
hdcbuffer.SelectObject(GetAirSpaceSldBrushByClass(airspace_type));
(*itr)->Draw(hdcbuffer, rc, true);
(*itr)->Draw(hdcMask, rc, false);
}
}//for
} else {
// Draw in direct order!
for (it=airspaces_to_draw.begin(); it != airspaces_to_draw.end(); ++it) {
if ((*it)->DrawStyle() == adsFilled) {
airspace_type = (*it)->Type();
if (!found) {
found = true;
ClearTptAirSpace(Surface, rc);
}
// set filling brush
hdcTempAsp.SelectObject(GetAirSpaceSldBrushByClass(airspace_type));
(*it)->Draw(hdcTempAsp, rc, true);
}
}//for
}//else borders_only
}//mutex release
// alpha blending
if (found) {
if (borders_only) {
hdcTempAsp.CopyWithMask(
rc.left,rc.top,
rc.right-rc.left,rc.bottom-rc.top,
hdcbuffer,rc.left,rc.top,
hdcMask,rc.left,rc.top);
}
Surface.AlphaBlend(rc, hdcTempAsp, rc, (255 * GetAirSpaceOpacity()) / 100);
}
// draw it again, just the outlines
// we will be drawing directly into given hdc, so store original PEN object
LKPen hOrigPen = Surface.SelectObject(LK_WHITE_PEN);
#ifdef AIRSPACE_BORDER
if(0)
#endif
if (1) {
CCriticalSection::CGuard guard(CAirspaceManager::Instance().MutexRef());
for (it=airspaces_to_draw.begin(); it != airspaces_to_draw.end(); ++it) {
if ((*it)->DrawStyle()) {
airspace_type = (*it)->Type();
#if ASPOUTLINE
if (bAirspaceBlackOutline ^ (asp_selected_flash && (*it)->Selected()) ) {
#else
if ( (((*it)->DrawStyle()==adsFilled)&&!outlined_only&&!borders_only) ^ (asp_selected_flash && (*it)->Selected()) ) {
#endif
Surface.SelectObject(LK_BLACK_PEN);
} else
if( (*it)->DrawStyle()==adsDisabled) {
Surface.SelectObject(LKPen_Grey_N2);
} else {
Surface.SelectObject(hAirspacePens[airspace_type]);
}
#ifndef AIRSPACE_BORDER
(*it)->Draw(hdc, rc, false);
#endif
}
}//for
}
// restore original PEN
Surface.SelectObject(hOrigPen);
hdcbuffer.RestoreState(nDC1);
hdcMask.RestoreState(nDC2);
hdcTempAsp.RestoreState(nDC3);
} // DrawTptAirSpace()