void CounterView::Draw (BRect updateRect)
{
BRect MovingRect (
m_MovingDotPoint.x,
m_MovingDotPoint.y,
m_MovingDotPoint.x + m_MovingDotSize,
m_MovingDotPoint.y + m_MovingDotSize);
char TempString [40];
if (m_BackingBitmap != NULL)
{
m_BackingBitmap->Lock ();
m_BackingView.SetHighColor (60, 60, 255, 8);
m_BackingView.FillRect (m_BndRect);
m_BackingView.SetHighColor (255, 255, 0, 255);
m_BackingView.MovePenTo (m_TextStartPoint);
sprintf (TempString, "%d", m_CurrentCount);
m_BackingView.DrawString (TempString);
m_BackingView.FillRect (MovingRect);
m_BackingView.Sync ();
m_BackingBitmap->Unlock ();
MovePenTo (0, 0);
DrawBitmap (m_BackingBitmap);
}
}
// GetClipping -- this will return NULL if the user hasn't selected any region of
// the screen. If she has, it will return a BBitmap representing that
// selection. You MUST delete it. It's not mine.
// Anything else, it returns NULL.
BBitmap * PictureViewer::GetClipping() {
if (thePic == NULL) return NULL;
if (clipping == false) return NULL;
BBitmap *dragImage = new BBitmap(BRect(0,0,clippingRegion.Width(),clippingRegion.Height()), thePic->ColorSpace(),true,false);
BView *tempView = new BView(dragImage->Bounds(),"yo",0,0);
dragImage->AddChild(tempView);
dragImage->Lock();
tempView->SetViewColor(0,0,0);
float left = -clippingRegion.left;
float top = -clippingRegion.top;
tempView->MovePenTo( left, top);
tempView->DrawBitmap(thePic);
dragImage->Unlock();
dragImage->RemoveChild(tempView);
delete tempView;
return dragImage;
}
BBitmap *DragonView::_MakeNoneImage( void )
{
// Draw an "empty" bitmap to represent "no image"; we'll use one
// that tells the user what to do.
BBitmap *bitmap = new BBitmap( BRect( 0, 0, 319, 199 ),
BScreen().ColorSpace(),
true );
BView *view = new BView( bitmap->Bounds(),
"not a bitmap",
B_FOLLOW_ALL_SIDES, 0 );
bitmap->AddChild( view );
DragonApp *app = dynamic_cast<DragonApp *>( be_app );
rgb_color White = { 255, 255, 255, 0 };
rgb_color Black = { 0, 0, 0, 0 };
bitmap->Lock();
view->SetLowColor( White );
view->SetViewColor( White );
view->SetHighColor( Black );
view->SetDrawingMode( B_OP_OVER );
view->FillRect( view->Bounds(), B_SOLID_LOW );
// Excercise for the reader here: Read the old newsletter articles
// about how to use the font metrics to find out how large a font is,
// then center to font in the window dynamically no matter what font
// settings the user has.
view->SetFont( be_plain_font );
view->MovePenTo( 5, 100 );
view->DrawString( app->rsrc_strings->FindString( RSRC_Drop_an_image ) );
view->Sync();
bitmap->Unlock();
return bitmap;
}
void
ActivityView::_DrawHistory(bool drawBackground)
{
_UpdateOffscreenBitmap();
BView* view = this;
if (fOffscreen != NULL) {
fOffscreen->Lock();
view = _OffscreenView();
}
BRect frame = _HistoryFrame();
BRect outerFrame = frame.InsetByCopy(-2, -2);
// draw the outer frame
uint32 flags = 0;
if (!drawBackground)
flags |= BControlLook::B_BLEND_FRAME;
be_control_look->DrawTextControlBorder(this, outerFrame,
outerFrame, fLegendBackgroundColor, flags);
// convert to offscreen view if necessary
if (view != this)
frame.OffsetTo(B_ORIGIN);
view->SetLowColor(fHistoryBackgroundColor);
view->FillRect(frame, B_SOLID_LOW);
uint32 step = 2;
uint32 resolution = fDrawResolution;
if (fDrawResolution > 1) {
step = 1;
resolution--;
}
// We would get a negative number of steps which isn't a good idea.
if (frame.IntegerWidth() <= 10)
return;
uint32 width = frame.IntegerWidth() - 10;
uint32 steps = width / step;
bigtime_t timeStep = RefreshInterval() * resolution;
bigtime_t now = system_time();
// Draw scale
// TODO: add second markers?
view->SetPenSize(1);
rgb_color scaleColor = view->LowColor();
uint32 average = (scaleColor.red + scaleColor.green + scaleColor.blue) / 3;
if (average < 96)
scaleColor = tint_color(scaleColor, B_LIGHTEN_2_TINT);
else
scaleColor = tint_color(scaleColor, B_DARKEN_2_TINT);
view->SetHighColor(scaleColor);
view->StrokeLine(BPoint(frame.left, frame.top + frame.Height() / 2),
BPoint(frame.right, frame.top + frame.Height() / 2));
// Draw values
view->SetPenSize(1.5);
BAutolock _(fSourcesLock);
for (uint32 i = fSources.CountItems(); i-- > 0;) {
ViewHistory* viewValues = fViewValues.ItemAt(i);
DataSource* source = fSources.ItemAt(i);
DataHistory* values = fValues.ItemAt(i);
viewValues->Update(values, steps, fDrawResolution, now, timeStep,
RefreshInterval());
if (viewValues->Start() >= (int32)steps - 1)
continue;
uint32 x = viewValues->Start() * step;
bool first = true;
view->SetHighColor(source->Color());
view->SetLineMode(B_BUTT_CAP, B_ROUND_JOIN);
view->MovePenTo(B_ORIGIN);
try {
view->BeginLineArray(steps - viewValues->Start() - 1);
BPoint prev;
for (uint32 j = viewValues->Start(); j < steps; x += step, j++) {
float y = _PositionForValue(source, values,
viewValues->ValueAt(j));
if (first) {
first = false;
} else
view->AddLine(prev, BPoint(x, y), source->Color());
prev.Set(x, y);
}
} catch (std::bad_alloc) {
// Not enough memory to allocate the line array.
// TODO we could try to draw using the slower but less memory
// consuming solution using StrokeLine.
}
view->EndLineArray();
}
// TODO: add marks when an app started or quit
view->Sync();
if (fOffscreen != NULL) {
fOffscreen->Unlock();
DrawBitmap(fOffscreen, outerFrame.LeftTop());
}
}
void
RemoteView::_DrawThread()
{
RemoteMessage reply(NULL, fSendBuffer);
RemoteMessage message(fReceiveBuffer, NULL);
// cursor
BPoint cursorHotSpot(0, 0);
while (!fStopThread) {
uint16 code;
status_t status = message.NextMessage(code);
if (status != B_OK) {
TRACE_ERROR("failed to read message from receiver\n");
break;
}
TRACE("code %u with %ld bytes data\n", code, message.DataLeft());
BAutolock locker(this->Looper());
if (!locker.IsLocked())
break;
// handle stuff that doesn't go to a specicifc engine
switch (code) {
case RP_INIT_CONNECTION:
{
uint16 port;
status_t result = message.Read(port);
if (result != B_OK) {
TRACE_ERROR("failed to read remote port\n");
continue;
}
BNetEndpoint *endpoint = fReceiver->Endpoint();
if (endpoint == NULL) {
TRACE_ERROR("receiver not connected anymore\n");
continue;
}
in_addr remoteHost;
char hostName[MAXHOSTNAMELEN + 1];
BNetAddress address(endpoint->RemoteAddr());
address.GetAddr(remoteHost);
address.GetAddr(hostName, NULL);
address.SetTo(remoteHost, port);
TRACE("connecting to host \"%s\" port %u\n", hostName, port);
result = fSendEndpoint->Connect(address);
if (result != B_OK) {
TRACE_ERROR("failed to connect to host \"%s\" port %u\n",
hostName, port);
continue;
}
BRect bounds = fOffscreenBitmap->Bounds();
reply.Start(RP_UPDATE_DISPLAY_MODE);
reply.Add(bounds.IntegerWidth() + 1);
reply.Add(bounds.IntegerHeight() + 1);
if (reply.Flush() == B_OK)
fIsConnected = true;
continue;
}
case RP_CLOSE_CONNECTION:
{
be_app->PostMessage(B_QUIT_REQUESTED);
continue;
}
case RP_CREATE_STATE:
case RP_DELETE_STATE:
{
uint32 token;
message.Read(token);
if (code == RP_CREATE_STATE)
_CreateState(token);
else
_DeleteState(token);
continue;
}
case RP_SET_CURSOR:
{
BBitmap *bitmap;
BPoint oldHotSpot = cursorHotSpot;
message.Read(cursorHotSpot);
if (message.ReadBitmap(&bitmap) != B_OK)
continue;
delete fCursorBitmap;
fCursorBitmap = bitmap;
Invalidate(fCursorFrame);
BRect bounds = fCursorBitmap->Bounds();
fCursorFrame.right = fCursorFrame.left
+ bounds.IntegerWidth() + 1;
fCursorFrame.bottom = fCursorFrame.bottom
+ bounds.IntegerHeight() + 1;
fCursorFrame.OffsetBy(oldHotSpot - cursorHotSpot);
Invalidate(fCursorFrame);
continue;
}
case RP_SET_CURSOR_VISIBLE:
{
bool wasVisible = fCursorVisible;
message.Read(fCursorVisible);
if (wasVisible != fCursorVisible)
Invalidate(fCursorFrame);
continue;
}
case RP_MOVE_CURSOR_TO:
{
BPoint position;
message.Read(position);
if (fCursorVisible)
Invalidate(fCursorFrame);
fCursorFrame.OffsetTo(position - cursorHotSpot);
Invalidate(fCursorFrame);
continue;
}
case RP_INVALIDATE_RECT:
{
BRect rect;
if (message.Read(rect) != B_OK)
continue;
Invalidate(rect);
continue;
}
case RP_INVALIDATE_REGION:
{
BRegion region;
if (message.ReadRegion(region) != B_OK)
continue;
Invalidate(®ion);
continue;
}
case RP_FILL_REGION_COLOR_NO_CLIPPING:
{
BRegion region;
rgb_color color;
message.ReadRegion(region);
if (message.Read(color) != B_OK)
continue;
fOffscreen->LockLooper();
fOffscreen->SetHighColor(color);
fOffscreen->FillRegion(®ion);
fOffscreen->UnlockLooper();
Invalidate(®ion);
continue;
}
case RP_COPY_RECT_NO_CLIPPING:
{
int32 xOffset, yOffset;
BRect rect;
message.Read(xOffset);
message.Read(yOffset);
if (message.Read(rect) != B_OK)
continue;
BRect dest = rect.OffsetByCopy(xOffset, yOffset);
fOffscreen->LockLooper();
fOffscreen->CopyBits(rect, dest);
fOffscreen->UnlockLooper();
continue;
}
}
uint32 token;
message.Read(token);
engine_state *state = _FindState(token);
if (state == NULL) {
TRACE_ERROR("didn't find state for token %lu\n", token);
continue;
}
BView *offscreen = state->view;
::pattern &pattern = state->pattern;
BRegion &clippingRegion = state->clipping_region;
float &penSize = state->pen_size;
bool &syncDrawing = state->sync_drawing;
BRegion invalidRegion;
BAutolock offscreenLocker(offscreen->Looper());
if (!offscreenLocker.IsLocked())
break;
switch (code) {
case RP_ENABLE_SYNC_DRAWING:
syncDrawing = true;
continue;
case RP_DISABLE_SYNC_DRAWING:
syncDrawing = false;
continue;
case RP_SET_OFFSETS:
{
int32 xOffset, yOffset;
message.Read(xOffset);
if (message.Read(yOffset) != B_OK)
continue;
offscreen->MovePenTo(xOffset, yOffset);
break;
}
case RP_SET_HIGH_COLOR:
case RP_SET_LOW_COLOR:
{
rgb_color color;
if (message.Read(color) != B_OK)
continue;
if (code == RP_SET_HIGH_COLOR)
offscreen->SetHighColor(color);
else
offscreen->SetLowColor(color);
break;
}
case RP_SET_PEN_SIZE:
{
float newPenSize;
if (message.Read(newPenSize) != B_OK)
continue;
offscreen->SetPenSize(newPenSize);
penSize = newPenSize / 2;
break;
}
case RP_SET_STROKE_MODE:
{
cap_mode capMode;
join_mode joinMode;
float miterLimit;
message.Read(capMode);
message.Read(joinMode);
if (message.Read(miterLimit) != B_OK)
continue;
offscreen->SetLineMode(capMode, joinMode, miterLimit);
break;
}
case RP_SET_BLENDING_MODE:
{
source_alpha sourceAlpha;
alpha_function alphaFunction;
message.Read(sourceAlpha);
if (message.Read(alphaFunction) != B_OK)
continue;
offscreen->SetBlendingMode(sourceAlpha, alphaFunction);
break;
}
case RP_SET_PATTERN:
{
if (message.Read(pattern) != B_OK)
continue;
break;
}
case RP_SET_DRAWING_MODE:
{
drawing_mode drawingMode;
if (message.Read(drawingMode) != B_OK)
continue;
offscreen->SetDrawingMode(drawingMode);
break;
}
case RP_SET_FONT:
{
BFont font;
if (message.ReadFontState(font) != B_OK)
continue;
offscreen->SetFont(&font);
break;
}
case RP_CONSTRAIN_CLIPPING_REGION:
{
if (message.ReadRegion(clippingRegion) != B_OK)
continue;
offscreen->ConstrainClippingRegion(&clippingRegion);
break;
}
case RP_INVERT_RECT:
{
BRect rect;
if (message.Read(rect) != B_OK)
continue;
offscreen->InvertRect(rect);
invalidRegion.Include(rect);
break;
}
case RP_DRAW_BITMAP:
{
BBitmap *bitmap;
BRect bitmapRect, viewRect;
uint32 options;
message.Read(bitmapRect);
message.Read(viewRect);
message.Read(options);
if (message.ReadBitmap(&bitmap) != B_OK || bitmap == NULL)
continue;
offscreen->DrawBitmap(bitmap, bitmapRect, viewRect, options);
invalidRegion.Include(viewRect);
delete bitmap;
break;
}
case RP_DRAW_BITMAP_RECTS:
{
color_space colorSpace;
int32 rectCount;
uint32 flags, options;
message.Read(options);
message.Read(colorSpace);
message.Read(flags);
message.Read(rectCount);
for (int32 i = 0; i < rectCount; i++) {
BBitmap *bitmap;
BRect viewRect;
message.Read(viewRect);
if (message.ReadBitmap(&bitmap, true, colorSpace,
flags) != B_OK || bitmap == NULL) {
continue;
}
offscreen->DrawBitmap(bitmap, bitmap->Bounds(), viewRect,
options);
invalidRegion.Include(viewRect);
delete bitmap;
}
break;
}
case RP_STROKE_ARC:
case RP_FILL_ARC:
case RP_FILL_ARC_GRADIENT:
{
BRect rect;
float angle, span;
message.Read(rect);
message.Read(angle);
if (message.Read(span) != B_OK)
continue;
if (code == RP_STROKE_ARC) {
offscreen->StrokeArc(rect, angle, span, pattern);
rect.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_ARC)
offscreen->FillArc(rect, angle, span, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillArc(rect, angle, span, *gradient);
delete gradient;
}
invalidRegion.Include(rect);
break;
}
case RP_STROKE_BEZIER:
case RP_FILL_BEZIER:
case RP_FILL_BEZIER_GRADIENT:
{
BPoint points[4];
if (message.ReadList(points, 4) != B_OK)
continue;
BRect bounds = _BuildInvalidateRect(points, 4);
if (code == RP_STROKE_BEZIER) {
offscreen->StrokeBezier(points, pattern);
bounds.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_BEZIER)
offscreen->FillBezier(points, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillBezier(points, *gradient);
delete gradient;
}
invalidRegion.Include(bounds);
break;
}
case RP_STROKE_ELLIPSE:
case RP_FILL_ELLIPSE:
case RP_FILL_ELLIPSE_GRADIENT:
{
BRect rect;
if (message.Read(rect) != B_OK)
continue;
if (code == RP_STROKE_ELLIPSE) {
offscreen->StrokeEllipse(rect, pattern);
rect.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_ELLIPSE)
offscreen->FillEllipse(rect, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillEllipse(rect, *gradient);
delete gradient;
}
invalidRegion.Include(rect);
break;
}
case RP_STROKE_POLYGON:
case RP_FILL_POLYGON:
case RP_FILL_POLYGON_GRADIENT:
{
BRect bounds;
bool closed;
int32 numPoints;
message.Read(bounds);
message.Read(closed);
if (message.Read(numPoints) != B_OK)
continue;
BPoint points[numPoints];
for (int32 i = 0; i < numPoints; i++)
message.Read(points[i]);
if (code == RP_STROKE_POLYGON) {
offscreen->StrokePolygon(points, numPoints, bounds, closed,
pattern);
bounds.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_POLYGON)
offscreen->FillPolygon(points, numPoints, bounds, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillPolygon(points, numPoints, bounds,
*gradient);
delete gradient;
}
invalidRegion.Include(bounds);
break;
}
case RP_STROKE_RECT:
case RP_FILL_RECT:
case RP_FILL_RECT_GRADIENT:
{
BRect rect;
if (message.Read(rect) != B_OK)
continue;
if (code == RP_STROKE_RECT) {
offscreen->StrokeRect(rect, pattern);
rect.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_RECT)
offscreen->FillRect(rect, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillRect(rect, *gradient);
delete gradient;
}
invalidRegion.Include(rect);
break;
}
case RP_STROKE_ROUND_RECT:
case RP_FILL_ROUND_RECT:
case RP_FILL_ROUND_RECT_GRADIENT:
{
BRect rect;
float xRadius, yRadius;
message.Read(rect);
message.Read(xRadius);
if (message.Read(yRadius) != B_OK)
continue;
if (code == RP_STROKE_ROUND_RECT) {
offscreen->StrokeRoundRect(rect, xRadius, yRadius,
pattern);
rect.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_ROUND_RECT)
offscreen->FillRoundRect(rect, xRadius, yRadius, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillRoundRect(rect, xRadius, yRadius,
*gradient);
delete gradient;
}
invalidRegion.Include(rect);
break;
}
case RP_STROKE_SHAPE:
case RP_FILL_SHAPE:
case RP_FILL_SHAPE_GRADIENT:
{
BRect bounds;
int32 opCount, pointCount;
message.Read(bounds);
if (message.Read(opCount) != B_OK)
continue;
BMessage archive;
for (int32 i = 0; i < opCount; i++) {
int32 op;
message.Read(op);
archive.AddInt32("ops", op);
}
if (message.Read(pointCount) != B_OK)
continue;
for (int32 i = 0; i < pointCount; i++) {
BPoint point;
message.Read(point);
archive.AddPoint("pts", point);
}
BPoint offset;
message.Read(offset);
float scale;
if (message.Read(scale) != B_OK)
continue;
offscreen->PushState();
offscreen->MovePenTo(offset);
offscreen->SetScale(scale);
BShape shape(&archive);
if (code == RP_STROKE_SHAPE) {
offscreen->StrokeShape(&shape, pattern);
bounds.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_SHAPE)
offscreen->FillShape(&shape, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK) {
offscreen->PopState();
continue;
}
offscreen->FillShape(&shape, *gradient);
delete gradient;
}
offscreen->PopState();
invalidRegion.Include(bounds);
break;
}
case RP_STROKE_TRIANGLE:
case RP_FILL_TRIANGLE:
case RP_FILL_TRIANGLE_GRADIENT:
{
BRect bounds;
BPoint points[3];
message.ReadList(points, 3);
if (message.Read(bounds) != B_OK)
continue;
if (code == RP_STROKE_TRIANGLE) {
offscreen->StrokeTriangle(points[0], points[1], points[2],
bounds, pattern);
bounds.InsetBy(-penSize, -penSize);
} else if (code == RP_FILL_TRIANGLE) {
offscreen->FillTriangle(points[0], points[1], points[2],
bounds, pattern);
} else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillTriangle(points[0], points[1], points[2],
bounds, *gradient);
delete gradient;
}
invalidRegion.Include(bounds);
break;
}
case RP_STROKE_LINE:
{
BPoint points[2];
if (message.ReadList(points, 2) != B_OK)
continue;
offscreen->StrokeLine(points[0], points[1], pattern);
BRect bounds = _BuildInvalidateRect(points, 2);
invalidRegion.Include(bounds.InsetBySelf(-penSize, -penSize));
break;
}
case RP_STROKE_LINE_ARRAY:
{
int32 numLines;
if (message.Read(numLines) != B_OK)
continue;
BRect bounds;
offscreen->BeginLineArray(numLines);
for (int32 i = 0; i < numLines; i++) {
rgb_color color;
BPoint start, end;
message.ReadArrayLine(start, end, color);
offscreen->AddLine(start, end, color);
bounds.left = min_c(bounds.left, min_c(start.x, end.x));
bounds.top = min_c(bounds.top, min_c(start.y, end.y));
bounds.right = max_c(bounds.right, max_c(start.x, end.x));
bounds.bottom = max_c(bounds.bottom, max_c(start.y, end.y));
}
offscreen->EndLineArray();
invalidRegion.Include(bounds);
break;
}
case RP_FILL_REGION:
case RP_FILL_REGION_GRADIENT:
{
BRegion region;
if (message.ReadRegion(region) != B_OK)
continue;
if (code == RP_FILL_REGION)
offscreen->FillRegion(®ion, pattern);
else {
BGradient *gradient;
if (message.ReadGradient(&gradient) != B_OK)
continue;
offscreen->FillRegion(®ion, *gradient);
delete gradient;
}
invalidRegion.Include(®ion);
break;
}
case RP_STROKE_POINT_COLOR:
{
BPoint point;
rgb_color color;
message.Read(point);
if (message.Read(color) != B_OK)
continue;
rgb_color oldColor = offscreen->HighColor();
offscreen->SetHighColor(color);
offscreen->StrokeLine(point, point);
offscreen->SetHighColor(oldColor);
invalidRegion.Include(
BRect(point, point).InsetBySelf(-penSize, -penSize));
break;
}
case RP_STROKE_LINE_1PX_COLOR:
{
BPoint points[2];
rgb_color color;
message.ReadList(points, 2);
if (message.Read(color) != B_OK)
continue;
float oldSize = offscreen->PenSize();
rgb_color oldColor = offscreen->HighColor();
drawing_mode oldMode = offscreen->DrawingMode();
offscreen->SetPenSize(1);
offscreen->SetHighColor(color);
offscreen->SetDrawingMode(B_OP_OVER);
offscreen->StrokeLine(points[0], points[1]);
offscreen->SetDrawingMode(oldMode);
offscreen->SetHighColor(oldColor);
offscreen->SetPenSize(oldSize);
invalidRegion.Include(_BuildInvalidateRect(points, 2));
break;
}
case RP_STROKE_RECT_1PX_COLOR:
case RP_FILL_RECT_COLOR:
{
BRect rect;
rgb_color color;
message.Read(rect);
if (message.Read(color) != B_OK)
continue;
rgb_color oldColor = offscreen->HighColor();
offscreen->SetHighColor(color);
if (code == RP_STROKE_RECT_1PX_COLOR) {
float oldSize = PenSize();
offscreen->SetPenSize(1);
offscreen->StrokeRect(rect);
offscreen->SetPenSize(oldSize);
} else
offscreen->FillRect(rect);
offscreen->SetHighColor(oldColor);
invalidRegion.Include(rect);
break;
}
case RP_DRAW_STRING:
{
BPoint point;
size_t length;
char *string;
bool hasDelta;
message.Read(point);
message.ReadString(&string, length);
if (message.Read(hasDelta) != B_OK) {
free(string);
continue;
}
if (hasDelta) {
escapement_delta delta[length];
message.ReadList(delta, length);
offscreen->DrawString(string, point, delta);
} else
offscreen->DrawString(string, point);
free(string);
reply.Start(RP_DRAW_STRING_RESULT);
reply.Add(token);
reply.Add(offscreen->PenLocation());
reply.Flush();
font_height height;
offscreen->GetFontHeight(&height);
BRect bounds(point, offscreen->PenLocation());
bounds.top -= height.ascent;
bounds.bottom += height.descent;
invalidRegion.Include(bounds);
break;
}
case RP_DRAW_STRING_WITH_OFFSETS:
{
size_t length;
char *string;
message.ReadString(&string, length);
int32 count = UTF8CountChars(string, length);
BPoint offsets[count];
if (message.ReadList(offsets, count) != B_OK) {
free(string);
continue;
}
offscreen->DrawString(string, offsets, count);
free(string);
reply.Start(RP_DRAW_STRING_RESULT);
reply.Add(token);
reply.Add(offscreen->PenLocation());
reply.Flush();
BFont font;
offscreen->GetFont(&font);
BRect boxes[count];
font.GetBoundingBoxesAsGlyphs(string, count, B_SCREEN_METRIC,
boxes);
font_height height;
offscreen->GetFontHeight(&height);
for (int32 i = 0; i < count; i++) {
// TODO: validate
boxes[i].OffsetBy(offsets[i] + BPoint(0, -height.ascent));
invalidRegion.Include(boxes[i]);
}
break;
}
case RP_READ_BITMAP:
{
BRect bounds;
bool drawCursor;
message.Read(bounds);
if (message.Read(drawCursor) != B_OK)
continue;
// TODO: support the drawCursor flag
BBitmap bitmap(bounds, B_BITMAP_NO_SERVER_LINK, B_RGB32);
bitmap.ImportBits(fOffscreenBitmap, bounds.LeftTop(),
BPoint(0, 0), bounds.IntegerWidth() + 1,
bounds.IntegerHeight() + 1);
reply.Start(RP_READ_BITMAP_RESULT);
reply.Add(token);
reply.AddBitmap(&bitmap);
reply.Flush();
break;
}
default:
TRACE_ERROR("unknown protocol code: %u\n", code);
break;
}
if (syncDrawing) {
offscreen->Sync();
Invalidate(&invalidRegion);
}
}
}
void CalcoloKtView::Calculate()
{
BString txt1text;
BString txt2text;
BString kt_text;
long double Kt;
long double x; // r/d
long double D_d; // D/d
long double a;
long double b;
long double c;
long double a1;
long double b1;
long double c1;
txt1text << txt1->Text();
txt2text << txt2->Text();
x = atof(txt1text.String());
D_d = atof(txt2text.String());
if (!((x > 0) && (x <= 0.3)))
{
BAlert *myAlert = new BAlert(ALERT_RD_TITLE, ALERT_RD_MESSAGE, ALERT_OK, NULL, NULL, B_WIDTH_AS_USUAL, B_OFFSET_SPACING, B_WARNING_ALERT);
myAlert->Go();
return;
}
if (!((D_d >= 1.01) && (D_d <= 3)))
{
BAlert *myAlert = new BAlert(ALERT_DD_TITLE, ALERT_DD_MESSAGE, ALERT_OK, NULL, NULL, B_WIDTH_AS_USUAL, B_OFFSET_SPACING, B_WARNING_ALERT);
myAlert->Go();
return;
}
if (D_d <= 1.05)
{
a1 = 0.590823256;
b1 = 0.000625284;
a = a1 + b1 / log(D_d);
}
else
{
a1 = 0.806683239;
b1 = -0.010667756;
c1 = 0.342511804;
a = a1 + b1 * (D_d / log(D_d)) + c1 * (log(D_d) / D_d);
}
a1 = -0.287595623;
b1 = -0.021137436;
c1 = 0.001099864;
b = a1 + b1 * D_d + c1 / log(D_d);
if (D_d <= 1.05)
{
a1 = -1.585648431;
b1 = 0.003195393;
c = a1 + b1 * (D_d / log(D_d));
}
else
{
a1 = 37.11501602;
b1 = 14.59448006;
c1 = -51.84367334;
c = D_d / (a1 + b1 * D_d + c1 * sqrt(D_d));
}
Kt = a * pow(x, b) * pow((1-x), c);
kt_text << "Kt : ";
kt_text << (float)Kt;
lbl1->SetText(kt_text.String());
/*
kt_text.SetTo("");
kt_text << "D_d : ";
kt_text << (float)D_d;
kt_text << "a : ";
kt_text << (float)a;
kt_text << "; b : ";
kt_text << (float)b;
kt_text << "; c : ";
kt_text << (float)c;
txt2->SetText(kt_text.String());
*/
BView *drawView;
drawView = (BView *)FindView("drawView");
drawView->SetHighColor(0, 200, 50);
/*
.:: Asse x (30, 200) - (310, 200) ::.
.:: Asse y (30, 0) - ( 30, 200)::.
*/
BPoint p1, p2;
p1.x = (310 - 30) * x / 0.28 + 30;
p1.y = 200 - 200 * Kt / 4;
p2.x = (310 - 30) * x / 0.28 + 30;
p2.y = 200;
drawView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = (310 - 30) * x / 0.28 + 30;
p1.y = 200 - 200 * Kt / 4;
p2.x = 30;
p2.y = 200 - 200 * Kt / 4;
drawView->StrokeLine(p1, p2, B_SOLID_HIGH);
drawView->SetHighColor(0, 0, 0);
float xres;
xres = 0.28 / (310 - 30 + 1);
x = 1 * xres;
p1.x = 1 + 30;
p1.y = 200 - 200 * ( a * pow(x, b) * pow((1-x), c)) / 4;
drawView->MovePenTo(p1);
for (int i = 2; i <= 280; i++)
{
x = i * xres;
p1.x = i + 30;
p1.y = 200 - 200 * ( a * pow(x, b) * pow((1-x), c)) / 4;
drawView->StrokeLine(p1, B_SOLID_HIGH);
}
}
void CalcoloKtView::Draw(BRect)
{
BView *iconView;
iconView = (BView *)FindView("iconView");
iconView->SetHighColor(0, 0, 0);
BPoint p1, p2;
// Dimensioni della BView iconView 130 x 60 pixels
float x_origin;
float y_origin;
float l_tot;
float h_tot;
// .:: Dimensioni principali dell'icona ::.
x_origin = 25;
y_origin = 5;
l_tot = 90;
h_tot = 52;
// .:: Sezione Sx ::.
p1.x = x_origin;
p1.y = y_origin;
p2.x = x_origin + l_tot * 5 / 9;
p2.y = y_origin;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = x_origin;
p1.y = y_origin + h_tot;
p2.x = x_origin + l_tot * 5 / 9;
p2.y = y_origin + h_tot;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = x_origin + l_tot * 5 / 9;
p1.y = y_origin;
p2.x = x_origin + l_tot * 5 / 9;
p2.y = y_origin + h_tot;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
// .:: Quota Sx ::.
p1.x = x_origin + (l_tot * 5 / 9)/2;
p1.y = y_origin;
p2.x = x_origin + (l_tot * 5 / 9)/2;
p2.y = y_origin + h_tot;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
// .:: Freccie quota Sx ::.
float largfreccie;
BPoint p3;
largfreccie = h_tot * 3 / 52;
p1.x = x_origin + (l_tot * 5 / 9)/2;
p1.y = y_origin;
p2.x = p1.x - largfreccie / 2;
p2.y = p1.y + largfreccie * 2;
p3.x = p1.x + largfreccie / 2;
p3.y = p1.y + largfreccie * 2;
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
p1.x = x_origin + (l_tot * 5 / 9)/2;
p1.y = y_origin + h_tot;
p2.x = p1.x - largfreccie / 2;
p2.y = p1.y - largfreccie * 2;
p3.x = p1.x + largfreccie / 2;
p3.y = p1.y - largfreccie * 2;
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
// .:: Testo quota Sx ::.
BPoint dimtext;
BFont font(be_plain_font);
float fontsize;
fontsize = h_tot * 7 / 52;
font.SetSize(fontsize);
iconView->SetFont(&font);
dimtext.x = x_origin + (l_tot * 5 / 9)/2 + l_tot * 5 / 90;
dimtext.y = y_origin + h_tot / 2 + fontsize / 2;
iconView->MovePenTo(dimtext);
iconView->DrawString("D");
// .:: Sezione Dx ::.
float arcradius;
arcradius = l_tot * 7 / 90;
p1.x = x_origin + l_tot * 5 / 9 + arcradius;
p1.y = y_origin + h_tot / 4;
p2.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45;
p2.y = y_origin + h_tot / 4;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = x_origin + l_tot * 5 / 9 + arcradius;
p1.y = y_origin + h_tot *3 / 4;
p2.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45;
p2.y = y_origin + h_tot *3 / 4;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
// .:: Quota Dx ::.
p1.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 7 / 45;
p1.y = y_origin + h_tot / 4;
p2.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 7 / 45;
p2.y = y_origin + h_tot *3 / 4;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
// .:: Freccie quota Sx ::.
largfreccie = h_tot * 3 / 52;
p1.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 7 / 45;
p1.y = y_origin + h_tot / 4;
p2.x = p1.x - largfreccie / 2;
p2.y = p1.y + largfreccie * 2;
p3.x = p1.x + largfreccie / 2;
p3.y = p1.y + largfreccie * 2;
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
p1.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 7 / 45;
p1.y = y_origin + h_tot *3 / 4;
p2.x = p1.x - largfreccie / 2;
p2.y = p1.y - largfreccie * 2;
p3.x = p1.x + largfreccie / 2;
p3.y = p1.y - largfreccie * 2;
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
// .:: Testo quota Dx ::.
dimtext.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 7 / 45 + l_tot * 5 / 90;
dimtext.y = y_origin + h_tot / 2 + fontsize / 2;
iconView->MovePenTo(dimtext);
iconView->DrawString("d");
// .:: Simbolo di continuazione a Sx ::.
float xbezorig;
float ybezorig;
float xunit;
float yunit;
BPoint controlpoints[4];
xbezorig = x_origin;
ybezorig = y_origin;
xunit = l_tot * 2 / 45;
yunit = h_tot / 20;
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig;
controlpoints[1].x = xbezorig + 0.8 * xunit;
controlpoints[1].y = ybezorig + 1 * yunit;
controlpoints[2].x = xbezorig + 1.2 * xunit;
controlpoints[2].y = ybezorig + 2 * yunit;
controlpoints[3].x = xbezorig + 1.5 * xunit;
controlpoints[3].y = ybezorig + 3 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1.5 * xunit;
controlpoints[0].y = ybezorig + 3 * yunit;
controlpoints[1].x = xbezorig + 1.7 * xunit;
controlpoints[1].y = ybezorig + 4 * yunit;
controlpoints[2].x = xbezorig + 1.5 * xunit;
controlpoints[2].y = ybezorig + 5 * yunit;
controlpoints[3].x = xbezorig + 1.1 * xunit;
controlpoints[3].y = ybezorig + 6 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1.1 * xunit;
controlpoints[0].y = ybezorig + 6 * yunit;
controlpoints[1].x = xbezorig + 1 * xunit;
controlpoints[1].y = ybezorig + 7 * yunit;
controlpoints[2].x = xbezorig + 0.8 * xunit;
controlpoints[2].y = ybezorig + 8 * yunit;
controlpoints[3].x = xbezorig + 0.3 * xunit;
controlpoints[3].y = ybezorig + 9 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1 * xunit;
controlpoints[0].y = ybezorig + 7 * yunit;
controlpoints[1].x = xbezorig + 0.8 * xunit;
controlpoints[1].y = ybezorig + 8 * yunit;
controlpoints[2].x = xbezorig + 0.3 * xunit;
controlpoints[2].y = ybezorig + 9 * yunit;
controlpoints[3].x = xbezorig;
controlpoints[3].y = ybezorig + 10 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig + 10 * yunit;
controlpoints[1].x = xbezorig - 0.8 * xunit;
controlpoints[1].y = ybezorig + 11 * yunit;
controlpoints[2].x = xbezorig - 1.2 * xunit;
controlpoints[2].y = ybezorig + 12 * yunit;
controlpoints[3].x = xbezorig - 1.5 * xunit;
controlpoints[3].y = ybezorig + 13 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1.5 * xunit;
controlpoints[0].y = ybezorig + 13 * yunit;
controlpoints[1].x = xbezorig - 1.7 * xunit;
controlpoints[1].y = ybezorig + 14 * yunit;
controlpoints[2].x = xbezorig - 1.5 * xunit;
controlpoints[2].y = ybezorig + 15 * yunit;
controlpoints[3].x = xbezorig - 1.1 * xunit;
controlpoints[3].y = ybezorig + 16 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1.1 * xunit;
controlpoints[0].y = ybezorig + 16 * yunit;
controlpoints[1].x = xbezorig - 1 * xunit;
controlpoints[1].y = ybezorig + 17 * yunit;
controlpoints[2].x = xbezorig - 0.8 * xunit;
controlpoints[2].y = ybezorig + 18 * yunit;
controlpoints[3].x = xbezorig - 0.3 * xunit;
controlpoints[3].y = ybezorig + 19 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1 * xunit;
controlpoints[0].y = ybezorig + 17 * yunit;
controlpoints[1].x = xbezorig - 0.8 * xunit;
controlpoints[1].y = ybezorig + 18 * yunit;
controlpoints[2].x = xbezorig - 0.3 * xunit;
controlpoints[2].y = ybezorig + 19 * yunit;
controlpoints[3].x = xbezorig;
controlpoints[3].y = ybezorig + 20 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig;
controlpoints[1].x = xbezorig - 0.8 * xunit;
controlpoints[1].y = ybezorig + 1 * yunit;
controlpoints[2].x = xbezorig - 1.2 * xunit;
controlpoints[2].y = ybezorig + 2 * yunit;
controlpoints[3].x = xbezorig - 1.5 * xunit;
controlpoints[3].y = ybezorig + 3 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1.5 * xunit;
controlpoints[0].y = ybezorig + 3 * yunit;
controlpoints[1].x = xbezorig - 1.7 * xunit;
controlpoints[1].y = ybezorig + 4 * yunit;
controlpoints[2].x = xbezorig - 1.5 * xunit;
controlpoints[2].y = ybezorig + 5 * yunit;
controlpoints[3].x = xbezorig - 1.1 * xunit;
controlpoints[3].y = ybezorig + 6 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1.1 * xunit;
controlpoints[0].y = ybezorig + 6 * yunit;
controlpoints[1].x = xbezorig - 1 * xunit;
controlpoints[1].y = ybezorig + 7 * yunit;
controlpoints[2].x = xbezorig - 0.8 * xunit;
controlpoints[2].y = ybezorig + 8 * yunit;
controlpoints[3].x = xbezorig - 0.3 * xunit;
controlpoints[3].y = ybezorig + 9 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1 * xunit;
controlpoints[0].y = ybezorig + 7 * yunit;
controlpoints[1].x = xbezorig - 0.8 * xunit;
controlpoints[1].y = ybezorig + 8 * yunit;
controlpoints[2].x = xbezorig - 0.3 * xunit;
controlpoints[2].y = ybezorig + 9 * yunit;
controlpoints[3].x = xbezorig;
controlpoints[3].y = ybezorig + 10 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
// .:: Simbolo di continuazione a Dx ::.
xbezorig = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45;
ybezorig = y_origin + h_tot / 4;
xunit = l_tot * 2 / 90;
yunit = h_tot / 40;
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig;
controlpoints[1].x = xbezorig + 0.8 * xunit;
controlpoints[1].y = ybezorig + 1 * yunit;
controlpoints[2].x = xbezorig + 1.2 * xunit;
controlpoints[2].y = ybezorig + 2 * yunit;
controlpoints[3].x = xbezorig + 1.5 * xunit;
controlpoints[3].y = ybezorig + 3 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1.5 * xunit;
controlpoints[0].y = ybezorig + 3 * yunit;
controlpoints[1].x = xbezorig + 1.7 * xunit;
controlpoints[1].y = ybezorig + 4 * yunit;
controlpoints[2].x = xbezorig + 1.5 * xunit;
controlpoints[2].y = ybezorig + 5 * yunit;
controlpoints[3].x = xbezorig + 1.1 * xunit;
controlpoints[3].y = ybezorig + 6 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1.1 * xunit;
controlpoints[0].y = ybezorig + 6 * yunit;
controlpoints[1].x = xbezorig + 1 * xunit;
controlpoints[1].y = ybezorig + 7 * yunit;
controlpoints[2].x = xbezorig + 0.8 * xunit;
controlpoints[2].y = ybezorig + 8 * yunit;
controlpoints[3].x = xbezorig + 0.3 * xunit;
controlpoints[3].y = ybezorig + 9 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1 * xunit;
controlpoints[0].y = ybezorig + 7 * yunit;
controlpoints[1].x = xbezorig + 0.8 * xunit;
controlpoints[1].y = ybezorig + 8 * yunit;
controlpoints[2].x = xbezorig + 0.3 * xunit;
controlpoints[2].y = ybezorig + 9 * yunit;
controlpoints[3].x = xbezorig;
controlpoints[3].y = ybezorig + 10 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig + 10 * yunit;
controlpoints[1].x = xbezorig - 0.8 * xunit;
controlpoints[1].y = ybezorig + 11 * yunit;
controlpoints[2].x = xbezorig - 1.2 * xunit;
controlpoints[2].y = ybezorig + 12 * yunit;
controlpoints[3].x = xbezorig - 1.5 * xunit;
controlpoints[3].y = ybezorig + 13 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1.5 * xunit;
controlpoints[0].y = ybezorig + 13 * yunit;
controlpoints[1].x = xbezorig - 1.7 * xunit;
controlpoints[1].y = ybezorig + 14 * yunit;
controlpoints[2].x = xbezorig - 1.5 * xunit;
controlpoints[2].y = ybezorig + 15 * yunit;
controlpoints[3].x = xbezorig - 1.1 * xunit;
controlpoints[3].y = ybezorig + 16 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1.1 * xunit;
controlpoints[0].y = ybezorig + 16 * yunit;
controlpoints[1].x = xbezorig - 1 * xunit;
controlpoints[1].y = ybezorig + 17 * yunit;
controlpoints[2].x = xbezorig - 0.8 * xunit;
controlpoints[2].y = ybezorig + 18 * yunit;
controlpoints[3].x = xbezorig - 0.3 * xunit;
controlpoints[3].y = ybezorig + 19 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig - 1 * xunit;
controlpoints[0].y = ybezorig + 17 * yunit;
controlpoints[1].x = xbezorig - 0.8 * xunit;
controlpoints[1].y = ybezorig + 18 * yunit;
controlpoints[2].x = xbezorig - 0.3 * xunit;
controlpoints[2].y = ybezorig + 19 * yunit;
controlpoints[3].x = xbezorig;
controlpoints[3].y = ybezorig + 20 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig + 10 * yunit;
controlpoints[1].x = xbezorig + 0.8 * xunit;
controlpoints[1].y = ybezorig + 11 * yunit;
controlpoints[2].x = xbezorig + 1.2 * xunit;
controlpoints[2].y = ybezorig + 12 * yunit;
controlpoints[3].x = xbezorig + 1.5 * xunit;
controlpoints[3].y = ybezorig + 13 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1.5 * xunit;
controlpoints[0].y = ybezorig + 13 * yunit;
controlpoints[1].x = xbezorig + 1.7 * xunit;
controlpoints[1].y = ybezorig + 14 * yunit;
controlpoints[2].x = xbezorig + 1.5 * xunit;
controlpoints[2].y = ybezorig + 15 * yunit;
controlpoints[3].x = xbezorig + 1.1 * xunit;
controlpoints[3].y = ybezorig + 16 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1.1 * xunit;
controlpoints[0].y = ybezorig + 16 * yunit;
controlpoints[1].x = xbezorig + 1 * xunit;
controlpoints[1].y = ybezorig + 17 * yunit;
controlpoints[2].x = xbezorig + 0.8 * xunit;
controlpoints[2].y = ybezorig + 18 * yunit;
controlpoints[3].x = xbezorig + 0.3 * xunit;
controlpoints[3].y = ybezorig + 19 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
controlpoints[0].x = xbezorig + 1 * xunit;
controlpoints[0].y = ybezorig + 17 * yunit;
controlpoints[1].x = xbezorig + 0.8 * xunit;
controlpoints[1].y = ybezorig + 18 * yunit;
controlpoints[2].x = xbezorig + 0.3 * xunit;
controlpoints[2].y = ybezorig + 19 * yunit;
controlpoints[3].x = xbezorig;
controlpoints[3].y = ybezorig + 20 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
// .:: Archi di raccordo ::.
xunit = arcradius / 3;
yunit = arcradius / 3;
xbezorig = x_origin + l_tot * 5 / 9;
ybezorig = y_origin + h_tot / 4 - arcradius;
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig;
controlpoints[1].x = xbezorig + 0.5 * xunit;
controlpoints[1].y = ybezorig + 1 * yunit;
controlpoints[2].x = xbezorig + 1 * xunit;
controlpoints[2].y = ybezorig + 2 * yunit;
controlpoints[3].x = xbezorig + 3 * xunit;
controlpoints[3].y = ybezorig + 3 * yunit;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
xbezorig = x_origin + l_tot * 5 / 9;
ybezorig = y_origin + h_tot *3 / 4;
controlpoints[0].x = xbezorig;
controlpoints[0].y = ybezorig + 3 * yunit;
controlpoints[1].x = xbezorig + 0.5 * xunit;
controlpoints[1].y = ybezorig + 2 * yunit;
controlpoints[2].x = xbezorig + 1 * xunit;
controlpoints[2].y = ybezorig + 1 * yunit;
controlpoints[3].x = xbezorig + 3 * xunit;
controlpoints[3].y = ybezorig;
iconView->StrokeBezier(controlpoints, B_SOLID_HIGH);
// .:: Quota raggio raccordo ::.
xbezorig = x_origin + l_tot * 5 / 9;
ybezorig = y_origin + h_tot / 4 - arcradius;
float pigreco;
pigreco = atan(1) * 4;
p1.x = xbezorig + 1.2 * xunit;
p1.y = ybezorig + 1.8 * yunit;
p2.x = p1.x + 2 * arcradius * cos(pigreco / 4);
p2.y = p1.y - 2 * arcradius * sin(pigreco / 4);
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
// .:: Freccia quota raggio di raccordo ::.
p2.x = p1.x + (-1 * largfreccie / 2 * cos(pigreco / 4) + largfreccie * 2 * sin(pigreco / 4));
p2.y = p1.y + (-1 * largfreccie / 2 * sin(pigreco / 4) - largfreccie * 2 * cos(pigreco / 4));
p3.x = p1.x + (largfreccie / 2 * cos(pigreco / 4) + largfreccie * 2 * sin(pigreco / 4));
p3.y = p1.y + (largfreccie / 2 * sin(pigreco / 4) - largfreccie * 2 * cos(pigreco / 4));
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
// .:: Testo quota raggio di raccordo ::.
p2.x = p1.x + 2 * arcradius * cos(pigreco / 4);
p2.y = p1.y - arcradius / 2 * sin(pigreco / 4);
iconView->MovePenTo(p2);
iconView->DrawString("r");
// .:: Quota forza Sx ::.
p1.x = x_origin - 3 * xunit;
p1.y = y_origin + h_tot / 2;
p2.x = x_origin - 8 * xunit;
p2.y = y_origin + h_tot / 2;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = x_origin - 8 * xunit;
p1.y = y_origin + h_tot / 2;
p2.x = p1.x + largfreccie * 2;
p2.y = p1.y - largfreccie / 2;
p3.x = p1.x + largfreccie * 2;
p3.y = p1.y + largfreccie / 2;
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
p1.x = x_origin - 11 / 2 * xunit;
p1.y = y_origin + h_tot / 2 - yunit;
iconView->MovePenTo(p1);
iconView->DrawString("P");
// .:: Quota forza Dx ::.
p1.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45 + 3 * xunit;
p1.y = y_origin + h_tot / 2;
p2.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45 + 8 * xunit;
p2.y = y_origin + h_tot / 2;
iconView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45 + 8 * xunit;
p1.y = y_origin + h_tot / 2;
p2.x = p1.x - largfreccie * 2;
p2.y = p1.y - largfreccie / 2;
p3.x = p1.x - largfreccie * 2;
p3.y = p1.y + largfreccie / 2;
iconView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
p1.x = x_origin + l_tot * 5 / 9 + arcradius + l_tot * 14 / 45 + 11 / 2 * xunit;
p1.y = y_origin + h_tot / 2 - yunit;
iconView->MovePenTo(p1);
iconView->DrawString("P");
// .:: Grafico ::.
// Dimensioni della BView drawView 310 x 210 pixels
BView *drawView;
drawView = (BView *)FindView("drawView");
drawView->SetHighColor(0, 0, 0);
p1.x = 30;
p1.y = 0;
p2.x = 30;
p2.y = 200;
drawView->StrokeLine(p1, p2, B_SOLID_HIGH);
p2.x = p1.x - largfreccie / 2;
p2.y = p1.y + largfreccie * 2;
p3.x = p1.x + largfreccie / 2;
p3.y = p1.y + largfreccie * 2;
drawView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
p1.x = 30;
p1.y = 200;
p2.x = 310;
p2.y = 200;
drawView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = 310;
p1.y = 200;
p2.x = p1.x - largfreccie * 2;
p2.y = p1.y - largfreccie / 2;
p3.x = p1.x - largfreccie * 2;
p3.y = p1.y + largfreccie / 2;
drawView->FillTriangle(p1, p2, p3, B_SOLID_HIGH);
for (int i = 280; i > 0; i = i - 50)
{
p1.x = i;
p1.y = 198;
p2.x = i;
p2.y = 202;
drawView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.y = 210;
float flxLabel;
BString strxLabel;
flxLabel = (i - 10) / 50 * 0.05;
strxLabel << (float)flxLabel;
drawView->MovePenTo(p1);
drawView->DrawString(strxLabel.String());
}
for (int i = 200; i > 0; i = i - 25)
{
p1.x = 28;
p1.y = i;
p2.x = 32;
p2.y = i;
drawView->StrokeLine(p1, p2, B_SOLID_HIGH);
p1.x = 0;
float flyLabel;
BString stryLabel;
flyLabel = (200 - i) / 25 * 0.5;
stryLabel << (float)flyLabel;
drawView->MovePenTo(p1);
drawView->DrawString(stryLabel.String());
}
p1.x = 10;
p1.y = 10;
drawView->MovePenTo(p1);
drawView->DrawString("Kt");
p1.x = 157;
p1.y = 210;
drawView->MovePenTo(p1);
drawView->DrawString("r/d");
}
// This function returns the number of pixels of the text that
// were clipped if the text does not fit into the clipping rect.
// If the text all fit, it returns 0.
int
BeOSCanvas::RenderText( int iFontHeight, Rect& oClipRect,
string& oText, AlignEnum eAlign,
Font* pFont, const Color& oColor,
bool bBold, bool bItalic, bool bUnderline )
{
Erase( oClipRect );
BView* v = m_pBufferBitmap->OffscreenView();
if ( !v ) return 0;
BBitmap* bitmap = m_pBufferBitmap->GetBBitmap();
assert( bitmap );
BFont font;
font_height fontHeight;
BRect clipRect( float(oClipRect.x1), float(oClipRect.y1),
float(oClipRect.x2-1), float(oClipRect.y2-1) );
BRegion clipRegion;
clipRegion.Set( clipRect );
if ( !bitmap->Lock() )
{
puts( "lock failed" );
return 0;
}
v->ConstrainClippingRegion( &clipRegion );
v->SetDrawingMode( B_OP_OVER );
if ( bBold )
{
v->SetFont( be_bold_font );
}
else
{
v->SetFont( be_plain_font );
}
v->SetFontSize( (float)iFontHeight - 1 );
v->GetFont( &font );
font.GetHeight( &fontHeight );
float width = v->StringWidth(oText.c_str(), oText.size());
if(eAlign == eCenter)
v->MovePenTo( float(oClipRect.x1) +
(float(oClipRect.x2 - oClipRect.x1) - width)/2,
float(oClipRect.y2-fontHeight.descent) );
else if (eAlign == eRight)
v->MovePenTo( float(oClipRect.x2) - width,
float(oClipRect.y2-fontHeight.descent) );
else
v->MovePenTo( float(oClipRect.x1),
float(oClipRect.y2-fontHeight.descent) );
v->DrawString( oText.c_str() );
v->Sync();
bitmap->Unlock();
Invalidate( oClipRect );
return (width < oClipRect.Width()) ? 0 : int(width - oClipRect.Width());
}
int
BeOSCanvas::RenderOffsetText( int iFontHeight, Rect& oClipRect,
string& oText, int iOffset,
Font* pFont, const Color& oColor,
bool bBold, bool bItalic,
bool bUnderline )
{
Erase( oClipRect );
BView* v = m_pBufferBitmap->OffscreenView();
if ( !v ) return 0;
BBitmap* bitmap = m_pBufferBitmap->GetBBitmap();
BFont font;
font_height fontHeight;
BRect clipRect( float(oClipRect.x1), float(oClipRect.y1),
float(oClipRect.x2-1), float(oClipRect.y2-1) );
BRegion clipRegion;
clipRegion.Set( clipRect );
if ( !bitmap->Lock() )
{
puts( "Lock Failed" );
return 0;
}
v->ConstrainClippingRegion( &clipRegion );
if ( bBold )
{
v->SetFont( be_bold_font );
}
else
{
v->SetFont( be_plain_font );
}
v->SetFontSize( (float)iFontHeight - 1 );
v->GetFont( &font );
font.GetHeight( &fontHeight );
float width = v->StringWidth(oText.c_str(), oText.size());
width += iMarqueeSpacer;
if ( iOffset > width )
{
bitmap->Unlock();
return int( width ) - iOffset;
}
v->MovePenTo( float(oClipRect.x1 - iOffset),
float(oClipRect.y2 - fontHeight.descent) );
v->DrawString( oText.c_str() );
int ret = int( width ) - iOffset - oClipRect.Width();
if ( ret < 0 )
{
v->MovePenTo( float(oClipRect.x1 - iOffset + width),
float(oClipRect.y2 - fontHeight.descent) );
v->DrawString( oText.c_str() );
}
v->Sync();
bitmap->Unlock();
Invalidate( oClipRect );
return MAX( 0, ret );
}
void URLView::DoPersonDrag() {
// Handle all of the bookmark dragging. This includes setting up
// the drag message and drawing the dragged bitmap.
// Set up the drag message to support both BTextView dragging (using
// the e-mail address) and file dropping (to Tracker).
BMessage *dragMessage = new BMessage( B_MIME_DATA );
dragMessage->AddInt32( "be:actions", B_COPY_TARGET );
dragMessage->AddString( "be:types", "application/octet-stream" );
dragMessage->AddString( "be:filetypes", "application/x-person" );
dragMessage->AddString( "be:type_descriptions", "person" );
dragMessage->AddString( "be:clip_name", Text() );
// This allows the user to drag the e-mail address into a
// standard BTextView.
BString email = GetImportantURL();
dragMessage->AddData( "text/plain", B_MIME_DATA, email.String(),
email.Length() + 1 );
// Query for the system's icon for bookmarks.
BBitmap *personIcon = new BBitmap( BRect( 0, 0, iconSize - 1,
iconSize - 1 ), B_CMAP8 );
#ifdef ZETA
BMimeType mime( "application/x-vnd.Be-PEPL" );
#else
BMimeType mime( "application/x-person" );
#endif
if( iconSize == 16 ) mime.GetIcon( personIcon, B_MINI_ICON );
else mime.GetIcon( personIcon, B_LARGE_ICON );
// Find the size of the bitmap to drag. If the text is bigger than the
// icon, use that size. Otherwise, use the icon's. Center the icon
// vertically in the bitmap.
BRect rect = GetTextRect();
rect.right += iconSize + 4;
if( (rect.bottom - rect.top) < iconSize ) {
int adjustment = (int) ((iconSize - (rect.bottom - rect.top)) / 2) + 1;
rect.top -= adjustment;
rect.bottom += adjustment;
}
// Make sure the rectangle starts at 0,0.
rect.bottom += 0 - rect.top;
rect.top = 0;
// Create the bitmap to draw the dragged image in.
BBitmap *dragBitmap = new BBitmap( rect, B_RGBA32, true );
BView *dragView = new BView( rect, "Drag View", 0, 0 );
dragBitmap->Lock();
dragBitmap->AddChild( dragView );
BRect frameRect = dragView->Frame();
// Make the background of the dragged image transparent.
dragView->SetHighColor( B_TRANSPARENT_COLOR );
dragView->FillRect( frameRect );
// We want 'g's, etc. to go below the underline. When the BeOS can
// do underlining of any font, this code can be removed.
font_height height;
GetFontHeight( &height );
float descent = height.descent;
// Find the vertical center of the view so we can vertically
// center everything.
int centerPixel = (int) ((frameRect.bottom - frameRect.top) / 2);
int textCenter = (int) (descent + underlineThickness) + centerPixel;
// We want to draw everything only half opaque.
dragView->SetDrawingMode( B_OP_ALPHA );
dragView->SetHighColor( 0.0, 0.0, 0.0, 128.0 );
dragView->SetBlendingMode( B_CONSTANT_ALPHA, B_ALPHA_COMPOSITE );
// Center the icon in the view.
dragView->MovePenTo( BPoint( frameRect.left,
centerPixel - (iconSize / 2) ) );
dragView->DrawBitmap( personIcon );
// Draw the text in the same font (size, etc.) as the link view.
// Note: DrawString() draws the text at one pixel above the pen's
// current y coordinate.
BFont font;
GetFont( &font );
dragView->SetFont( &font );
dragView->MovePenTo( BPoint( frameRect.left + iconSize + 4, textCenter ) );
dragView->DrawString( Text() );
// Be sure to flush the view buffer so everything is drawn.
dragView->Flush();
dragBitmap->Unlock();
// The Person icon adds some width to the bitmap that we are
// going to draw. So horizontally offset the bitmap proportionally
// to where the user clicked on the link.
float horiz = dragOffset.x / GetTextRect().Width();
dragOffset.x = horiz * frameRect.right;
DragMessage( dragMessage, dragBitmap, B_OP_ALPHA,
BPoint( dragOffset.x,
(rect.Height() + underlineThickness) / 2 + 2), this );
delete dragMessage;
draggedOut = true;
}
void
ActivityView::_DrawHistory(bool drawBackground)
{
_UpdateOffscreenBitmap();
BView* view = this;
if (fOffscreen != NULL) {
fOffscreen->Lock();
view = _OffscreenView();
}
BRect frame = _HistoryFrame();
BRect outerFrame = frame.InsetByCopy(-2, -2);
// draw the outer frame
uint32 flags = 0;
if (!drawBackground)
flags |= BControlLook::B_BLEND_FRAME;
be_control_look->DrawTextControlBorder(this, outerFrame,
outerFrame, fLegendBackgroundColor, flags);
// convert to offscreen view if necessary
if (view != this)
frame.OffsetTo(B_ORIGIN);
view->SetLowColor(fHistoryBackgroundColor);
view->FillRect(frame, B_SOLID_LOW);
uint32 step = 2;
uint32 resolution = fDrawResolution;
if (fDrawResolution > 1) {
step = 1;
resolution--;
}
uint32 width = frame.IntegerWidth() - 10;
uint32 steps = width / step;
bigtime_t timeStep = RefreshInterval() * resolution;
bigtime_t now = system_time();
// Draw scale
// TODO: add second markers?
view->SetPenSize(1);
rgb_color scaleColor = view->LowColor();
uint32 average = (scaleColor.red + scaleColor.green + scaleColor.blue) / 3;
if (average < 96)
scaleColor = tint_color(scaleColor, B_LIGHTEN_2_TINT);
else
scaleColor = tint_color(scaleColor, B_DARKEN_2_TINT);
view->SetHighColor(scaleColor);
view->StrokeLine(BPoint(frame.left, frame.top + frame.Height() / 2),
BPoint(frame.right, frame.top + frame.Height() / 2));
// Draw values
view->SetPenSize(1.5);
BAutolock _(fSourcesLock);
for (uint32 i = fSources.CountItems(); i-- > 0;) {
ViewHistory* viewValues = fViewValues.ItemAt(i);
DataSource* source = fSources.ItemAt(i);
DataHistory* values = fValues.ItemAt(i);
viewValues->Update(values, steps, fDrawResolution, now, timeStep,
RefreshInterval());
uint32 x = viewValues->Start() * step;
BShape shape;
bool first = true;
for (uint32 i = viewValues->Start(); i < steps; x += step, i++) {
float y = _PositionForValue(source, values,
viewValues->ValueAt(i));
if (first) {
shape.MoveTo(BPoint(x, y));
first = false;
} else
shape.LineTo(BPoint(x, y));
}
view->SetHighColor(source->Color());
view->SetLineMode(B_BUTT_CAP, B_ROUND_JOIN);
view->MovePenTo(B_ORIGIN);
view->StrokeShape(&shape);
}
// TODO: add marks when an app started or quit
view->Sync();
if (fOffscreen != NULL) {
fOffscreen->Unlock();
DrawBitmap(fOffscreen, outerFrame.LeftTop());
}
}
