void ArrangeAlignment::RedrawDiagram(ReDrawInfoType* ExtraInfo)
{
// objects drawn in the render region must be relatively large in the given coord space
// else Gavin's curve flattening results in visible straight lines
// so every dimension is scaled by scale
INT32 scale=1000;
// make a render region
DocRect VirtRendRect;
VirtRendRect.lo.x=-1*scale;
VirtRendRect.lo.y=-2*scale;
VirtRendRect.hi.x=(DiagWidth +1)*scale;
VirtRendRect.hi.y=(DiagHeight+2)*scale;
RenderRegion* pRender=CreateGRenderRegion(&VirtRendRect,ExtraInfo);
if (pRender!=NULL)
{
pRender->SaveContext();
// currently this must be set here before any colour tables calculated
Quality AntiAliasQuality(Quality::QualityMax);
QualityAttribute AntiAliasQualityAttr(AntiAliasQuality);
pRender->SetQuality(&AntiAliasQualityAttr,FALSE);
// Render the background rectangle
DialogColourInfo RedrawColours;
pRender->SetLineColour(RedrawColours.DialogBack());
pRender->SetFillColour(RedrawColours.DialogBack());
pRender->DrawRect(&VirtRendRect);
// declared at this scope else RestoreContext() dies!
RadialFillAttribute Fill;
// set up some defaults used by all objects
Fill.MakeElliptical();
Fill.Colour=DocColour(255,255,255);
pRender->SetLineColour(BLACK);
pRender->SetLineWidth(0);
for (INT32 i=0; i<DiagRects; i++)
{
// reverse order in which objets are rendered (now filled!)
INT32 j=DiagRects-1-i;
// set fill colour of each object
switch (j)
{
case 0: Fill.EndColour=DocColour(255,255,0); break;
case 1: Fill.EndColour=DocColour(0,0,255); break;
case 2: Fill.EndColour=DocColour(255,0,0); break;
case 3: Fill.EndColour=DocColour(0,160,0); break;
default: Fill.EndColour=DocColour(0,0,0); break;
}
// get bound rect of object to be drawn
INT32 x=DiagRectX[Align.h][j].lo*scale;
INT32 w=DiagRectX[Align.h][j].hi*scale-x;
INT32 y=DiagRectY[Align.v][j].lo*scale;
INT32 h=DiagRectY[Align.v][j].hi*scale-y;
// create shape and fill geometries
Path shape;
shape.Initialise(16,8);
shape.IsFilled=TRUE;
shape.FindStartOfPath();
switch (j)
{
case 0:
{
// create a rectangle
shape.InsertMoveTo(DocCoord(x,y));
shape.InsertLineTo(DocCoord(x,y+h));
shape.InsertLineTo(DocCoord(x+w,y+h));
shape.InsertLineTo(DocCoord(x+w,y));
shape.InsertLineTo(DocCoord(x,y));
// // create a radial fill
// Fill.StartPoint=DocCoord(x+w*3/16,y+h*3/4);
// Fill.EndPoint =DocCoord(x+w*3/8,y+h/2);
// Fill.EndPoint2 =DocCoord(x+w*3/8,y+h);
break;
}
case 1:
{
// create a pseudo ellipse
shape.InsertMoveTo( DocCoord(x,y+h/2));
shape.InsertCurveTo(DocCoord(x,y+h*3/4), DocCoord(x+w/4,y+h), DocCoord(x+w/2,y+h));
shape.InsertCurveTo(DocCoord(x+w*3/4,y+h),DocCoord(x+w,y+h*3/4),DocCoord(x+w,y+h/2));
shape.InsertCurveTo(DocCoord(x+w,y+h/4), DocCoord(x+w*3/4,y), DocCoord(x+w/2,y));
shape.InsertCurveTo(DocCoord(x+w/4,y), DocCoord(x,y+h/4), DocCoord(x,y+h/2));
// // create a radial fill
// Fill.StartPoint=DocCoord(x+w*3/8,y+h*5/8);
// Fill.EndPoint =DocCoord(x+w*6/8,y+h/4);
// Fill.EndPoint2 =DocCoord(x+w*6/8,y+h);
break;
}
default:
{
// create a rounded rectangle
shape.InsertMoveTo( DocCoord(x,y+h/2));
shape.InsertCurveTo(DocCoord(x,y+h), DocCoord(x,y+h), DocCoord(x+w/2,y+h));
shape.InsertCurveTo(DocCoord(x+w,y+h),DocCoord(x+w,y+h),DocCoord(x+w,y+h/2));
shape.InsertCurveTo(DocCoord(x+w,y), DocCoord(x+w,y), DocCoord(x+w/2,y));
shape.InsertCurveTo(DocCoord(x,y), DocCoord(x,y), DocCoord(x,y+h/2));
// // create a radial fill
// Fill.StartPoint=DocCoord(x+w*3/16,y+h*3/4);
// Fill.EndPoint =DocCoord(x+w*3/8,y+h/2);
// Fill.EndPoint2 =DocCoord(x+w*3/8,y+h);
break;
}
}
// pRender->SetFillGeometry(&Fill,FALSE);
pRender->SetFillColour(Fill.EndColour);
pRender->DrawPath(&shape);
}
pRender->RestoreContext();
DestroyGRenderRegion(pRender); // also blt's to screen
}
}
/********************************************************************************************
> void TipsDlg::OnRedraw(ReDrawInfoType* pRedrawInfo)
Author: Colin_Barfoot (Xara Group Ltd) <*****@*****.**>
Created: 03/08/96
Purpose: Redraws the dialog in response to a DIM_REDRAW message
********************************************************************************************/
void TipsDlg::OnRedraw(ReDrawInfoType* pRedrawInfo)
{
// Use the actual size of the window as our scale
DocRect RedrawRect(0, 0, pRedrawInfo->dx, pRedrawInfo->dy);
m_pRenderer = CreateGRenderRegion(&RedrawRect, pRedrawInfo);
if (m_pRenderer != NULL)
{
// Interlock redraw with the drag manager to ensure we don't redraw over any drag
// blobs
DragManagerOp::RedrawStarting(WindowID, m_pCurrentMsg->GadgetID);
DialogColourInfo defaultColours; // Object supplying Host OS redraw colours
m_pRenderer->SaveContext();
// Paint the background
m_pRenderer->SetLineWidth(0);
m_pRenderer->SetLineColour(COLOUR_WHITE);
m_pRenderer->SetFillColour(COLOUR_WHITE);
m_pRenderer->DrawRect(&RedrawRect);
switch (m_pCurrentMsg->GadgetID)
{
case _R(IDC_BITMAP):
{
// Draw bitmap in top corner and validate only top portion of window
DrawBitmap(_R(IDB_LIGHTBULB), RedrawRect);
break;
}
case _R(IDC_DIDYOUKNOW):
{
DrawBitmap(_R(IDB_DIDYOU), RedrawRect);
/*
m_pRenderer->SetFixedSystemTextColours( &defaultColours.TextFore(),
&defaultColours.TextBack());
// Draw out "Did you know..." message next to the bitmap
String_256 strMessage;
strMessage.Load(_R(IDS_DIDYOUKNOW));
DrawText(&strMessage, RedrawRect, ALN_CENTRE);
*/
break;
// Just draw a white rectangle with the text on it
}
default:
{
TRACEUSER( "Colin", _T("Invalidated - m_bSentInvalid %d\n"), m_bSentInvalid);
if (!m_bSentInvalid)
{
m_bSentInvalid = TRUE;
m_pTipTextGadget->Invalidate(pRedrawInfo->pClipRect);
}
else
{
m_bSentInvalid = FALSE;
}
break;
}
}
m_pRenderer->RestoreContext();
DestroyGRenderRegion(m_pRenderer);
// And turn off the drag redraw interlock
DragManagerOp::RedrawFinished();
}
}
void RenderDemoDlg::RenderControl(ReDrawInfoType* ExtraInfo)
{
// Go get a render region
DocRect VirtualSize(-ExtraInfo->dx/2, -ExtraInfo->dy/2, ExtraInfo->dx/2, ExtraInfo->dy/2);
RenderRegion* pRender = CreateGRenderRegion(&VirtualSize, ExtraInfo);
if (pRender!=NULL)
{
DialogColourInfo RedrawColours; // Get a supplier for default dlg colours
// Render stuff in here
// Build a Linear fill attribute
LinearFillAttribute MyGradFill;
MyGradFill.Colour = DocColour(255, 255, 0);
MyGradFill.EndColour = DocColour(0, 255, 255);
MyGradFill.StartPoint = DocCoord(0, ExtraInfo->dy);
MyGradFill.EndPoint = DocCoord(ExtraInfo->dx, 0);
// Build a path
Path InkPath;
InkPath.Initialise(12,12);
InkPath.FindStartOfPath();
// Get the coords used to build a shape
INT32 dx = ExtraInfo->dx / 2;
INT32 dy = ExtraInfo->dy / 2;
INT32 Midx = ExtraInfo->dx / 4;
INT32 Midy = ExtraInfo->dy / 4;
// build a circle in the middle of the control
InkPath.InsertMoveTo(DocCoord(Midx, dy));
InkPath.InsertCurveTo(DocCoord(Midx+Midx/2, dy), DocCoord(dx, Midy+Midy/2), DocCoord(dx, Midy));
InkPath.InsertCurveTo(DocCoord(dx, Midy-Midy/2), DocCoord(Midx+Midx/2, 0), DocCoord(Midx, 0));
InkPath.InsertCurveTo(DocCoord(Midx-Midx/2, 0), DocCoord(0, Midy-Midy/2), DocCoord(0, Midy));
InkPath.InsertCurveTo(DocCoord(0, Midy+Midy/2), DocCoord(Midx-Midx/2, dy), DocCoord(Midx, dy));
InkPath.IsFilled = TRUE;
// A Grey colour [...hmmm, it's not a very grey grey any more... oragnge more like]
DocColour Grey(255,200,0);
// Render the attributes and the a rectangle
pRender->SaveContext();
pRender->SetLineColour(Grey);
// Draw a rectangle to fill in the background - Fill with Dialogue Background colour
DocRect DrawMe(0, 0, ExtraInfo->dx, ExtraInfo->dy);
pRender->SetFillColour(RedrawColours.DialogBack());
pRender->DrawRect(&VirtualSize);
// Draw some shapes and stuff
pRender->SetFillGeometry(&MyGradFill, FALSE);
pRender->DrawPath(&InkPath);
// Build a path
Path TriPath;
TriPath.Initialise(12,12);
TriPath.FindStartOfPath();
// build a circle in the middle of the control
TriPath.InsertMoveTo(VirtualSize.lo);
TriPath.InsertLineTo(DocCoord(VirtualSize.hi.x, VirtualSize.lo.y));
TriPath.InsertLineTo(DocCoord(0, VirtualSize.hi.y));
TriPath.InsertLineTo(VirtualSize.lo);
TriPath.IsFilled = TRUE;
LinearFillAttribute MyTriFill;
MyTriFill.Colour = ShowFirst ? First : Second;
MyTriFill.EndColour = DocColour(0,0,0);
MyTriFill.StartPoint = DocCoord(ExtraInfo->dx, 0);
MyTriFill.EndPoint = DocCoord(0, ExtraInfo->dy);
pRender->SetFillGeometry(&MyTriFill, FALSE);
pRender->DrawPath(&TriPath);
pRender->RestoreContext();
// Get rid of the render region
DestroyGRenderRegion(pRender);
}
// and animate it!
if (ShowFirst)
{
INT32 Red, Green, Blue;
First.GetRGBValue(&Red, &Green, &Blue);
if (Blue>0)
{
// Set the colour back again
Blue -= 10;
First.SetRGBValue(Red, Green, Blue);
// redraw it
InvalidateGadget(_R(IDC_REDRAW_ME));
}
}
else
{
// Set the colour back to how it was
First.SetRGBValue(255, 0, 250);
}
}
