void
JNamedConstant::Render
(
const JExprRenderer& renderer,
const JExprRectList& rectList
)
const
{
if (strcmp(JPGetStdNamedConstName(itsNameIndex), JPGetPiString()) == 0)
{
// find ourselves in the list
JIndex ourIndex;
const JBoolean found = rectList.FindFunction(this, &ourIndex);
assert( found );
const JRect ourRect = rectList.GetRect(ourIndex);
const JCoordinate ourMidline = rectList.GetMidline(ourIndex);
const JSize fontSize = rectList.GetFontSize(ourIndex);
// draw the greek character for pi
renderer.DrawGreekCharacter(ourRect.left, ourMidline, fontSize, kGreekPiChar);
}
else
{
JFunction::Render(renderer, rectList);
}
}
void
JSummation::Render
(
const JExprRenderer& renderer,
const JExprRectList& rectList
)
const
{
// find ourselves in the list
JIndex ourIndex;
const JBoolean found = rectList.FindFunction(this, &ourIndex);
assert( found );
const JRect ourRect = rectList.GetRect(ourIndex);
const JCoordinate ourMidline = rectList.GetMidline(ourIndex);
const JSize fontSize = rectList.GetFontSize(ourIndex);
// draw ourselves
JCoordinate h = ourRect.left;
const JSize spaceWidth = renderer.GetStringWidth(fontSize, " ");
const JSize argCount = GetArgCount();
for (JIndex i=1; i<=argCount; i++)
{
const JFunction* f = this;
const JFunction* arg = GetArg(i);
if (arg->GetType() == kJNegationType)
{
renderer.DrawString(h, ourMidline, fontSize, JPGetSubtractionString());
f = arg;
const JNegation* neg = dynamic_cast<const JNegation*>(arg);
assert( neg != NULL );
arg = neg->GetArg();
}
else if (i > 1)
{
renderer.DrawString(h, ourMidline, fontSize, JPGetAdditionString());
}
arg->Render(renderer, rectList);
JIndex argIndex;
const JBoolean found = rectList.FindFunction(arg, &argIndex);
assert( found );
const JRect argRect = rectList.GetRect(argIndex);
h = argRect.right;
if (ParenthesizeArgForRender(*f, *arg))
{
renderer.DrawParentheses(argRect);
h += renderer.GetParenthesisWidth(argRect.height());
}
h += spaceWidth;
}
}
void
JFunctionWithVar::Render
(
const JExprRenderer& renderer,
const JExprRectList& rectList
)
const
{
// find ourselves in the list
JIndex ourIndex;
const JBoolean found = rectList.FindFunction(this, &ourIndex);
assert( found );
const JRect ourRect = rectList.GetRect(ourIndex);
const JCoordinate ourMidline = rectList.GetMidline(ourIndex);
const JSize fontSize = rectList.GetFontSize(ourIndex);
// draw base name
JString baseName, subscript;
itsVariableList->GetVariableName(itsVariableIndex, &baseName, &subscript);
DrawString(renderer, ourRect.left, ourMidline, fontSize, baseName);
// draw subscript
if (!subscript.IsEmpty())
{
const JCoordinate subLeft =
ourRect.left + GetStringWidth(renderer, fontSize, baseName);
const JSize subFontSize = renderer.GetSuperSubFontSize(fontSize);
const JSize subHeight = renderer.GetLineHeight(subFontSize);
DrawString(renderer, subLeft, ourMidline + subHeight/2, subFontSize, subscript);
}
// draw our array index
if (itsArrayIndex != NULL)
{
itsArrayIndex->Render(renderer, rectList);
JIndex argIndex;
const JBoolean found = rectList.FindFunction(itsArrayIndex, &argIndex);
assert( found );
renderer.DrawSquareBrackets(rectList.GetRect(argIndex));
}
}
void
JLogB::Render
(
const JExprRenderer& renderer,
const JExprRectList& rectList
)
const
{
// find ourselves in the list
JIndex ourIndex;
const JBoolean found = rectList.FindFunction(this, &ourIndex);
assert( found );
const JRect ourRect = rectList.GetRect(ourIndex);
const JCoordinate ourMidline = rectList.GetMidline(ourIndex);
const JSize fontSize = rectList.GetFontSize(ourIndex);
// draw ourselves
const JCharacter* name = GetName();
const JSize nameLength = strlen(name);
assert( nameLength > 1 );
assert( name[ nameLength-1 ] == '(' );
const JString fnName = JString(name, nameLength-1);
renderer.DrawString(ourRect.left, ourMidline, fontSize, fnName);
// draw the base
(GetArg1())->Render(renderer, rectList);
// draw the argument
const JFunction* arg = GetArg2();
arg->Render(renderer, rectList);
JIndex argIndex;
const JBoolean foundArg = rectList.FindFunction(arg, &argIndex);
assert( foundArg );
renderer.DrawParentheses(rectList.GetRect(argIndex));
}
void
JFunction::Render
(
const JExprRenderer& renderer,
const JExprRectList& rectList
)
const
{
// find ourselves in the list
JIndex ourIndex;
const JBoolean found = rectList.FindFunction(this, &ourIndex);
assert( found );
const JRect ourRect = rectList.GetRect(ourIndex);
const JCoordinate ourMidline = rectList.GetMidline(ourIndex);
const JSize fontSize = rectList.GetFontSize(ourIndex);
// display the output of Print
const JString text = Print();
renderer.DrawString(ourRect.left, ourMidline, fontSize, text);
}
void
JParallel::Render
(
const JExprRenderer& renderer,
const JExprRectList& rectList
)
const
{
// find ourselves in the list
JIndex ourIndex;
const JBoolean found = rectList.FindFunction(this, &ourIndex);
assert( found );
const JRect ourRect = rectList.GetRect(ourIndex);
const JCoordinate ourMidline = rectList.GetMidline(ourIndex);
const JSize fontSize = rectList.GetFontSize(ourIndex);
// draw ourselves
const JSize spaceWidth = renderer.GetStringWidth(fontSize, " ");
const JSize barWidth = renderer.GetVertBarWidth();
const JSize lineHeight = renderer.GetLineHeight(fontSize);
JSize maxBarLength;
if (((JSize) ourRect.height()) > lineHeight)
{
maxBarLength = JLFloor(ourRect.height()/2.0);
}
else
{
maxBarLength = ourRect.height();
}
JSize barLength;
if (ourMidline > ourRect.ycenter())
{
barLength = 2*(ourRect.bottom - ourMidline);
}
else
{
barLength = 2*(ourMidline - ourRect.top);
}
if (barLength > maxBarLength)
{
barLength = maxBarLength;
}
const JCoordinate barTop = ourMidline - barLength/2;
const JSize argCount = GetArgCount();
for (JIndex i=1; i<=argCount; i++)
{
const JFunction* arg = GetArg(i);
arg->Render(renderer, rectList);
JIndex argIndex;
const JBoolean found = rectList.FindFunction(arg, &argIndex);
assert( found );
const JRect argRect = rectList.GetRect(argIndex);
JCoordinate h = argRect.right + spaceWidth;
if (ParenthesizeArgForRender(*this, *arg))
{
renderer.DrawParentheses(argRect);
h += renderer.GetParenthesisWidth(argRect.height());
}
if (i < argCount)
{
renderer.DrawVertBar(h, barTop, barLength);
renderer.DrawVertBar(h + barWidth, barTop, barLength);
}
}
}