/
cell_item.cpp
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/
cell_item.cpp
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/*
* cell_item.cpp
*
* Created on: 16.11.2009
* Author: dima
*/
#include "cell_item.h"
// ********* public functions **********
void CellItem::setChar(QChar c) {
if (c.isLetter())
{
is_empty = false;
this->c = c.toUpper();
update();
}
}
//********************************
QPixmap CellItem::snapshot()
{
QPixmap pixmap(size().width()+10, size().height()+10);
QPainter painter;
pixmap.fill(QColor(0,0,0,0));
painter.begin(&pixmap);
painter.translate(5, 5);
painter.setRenderHint(QPainter::Antialiasing);
paint(&painter, 0, 0);
painter.end();
return pixmap;
}
CellItem::CellItem(QGraphicsItem* parent_item, int row, int column) :
QGraphicsWidget(parent_item),
is_empty(true),
is_focused(false),
is_wait_char(false),
is_font_marked(false),
state(STATE_DEFAULT),
row(row),
column(column),
background_color_default("white"),
background_color_not_allowed("green"),
background_color_selected("khaki"),
border_color_focused("blueviolet"),
border_color_unfocused("black"),
border_color_wait_char("deeppink"),
font_color_marked("black"),
font_color_unmarked("black"),
angle(rand() % 4 - 2)
{
setAcceptHoverEvents(true);
setFlags(QGraphicsItem::ItemIsFocusable);
QSizePolicy policy(QSizePolicy::Minimum, QSizePolicy::Minimum);
policy.setHeightForWidth(true);
setSizePolicy(policy);
updateGeometry();
}
void CellItem::setMarkedFont(bool value)
{
is_font_marked = value;
}
bool CellItem::isAdjacentWith(CellItem* other)
{
return (getPosition() - other->getPosition()).manhattanLength() == 1;
}
QPoint CellItem::getPosition()
{
return QPoint(row, column);
}
void CellItem::setGeometry ( const QRectF & rect )
{
QGraphicsWidget::setGeometry(rect);
}
QSizeF CellItem::sizeHint(Qt::SizeHint which,
const QSizeF & constraint) const {
switch (which) {
case Qt::MinimumSize:
case Qt::PreferredSize:
case Qt::MaximumSize:
// Do not allow a size smaller than the pixmap with two frames around it.
return QSizeF(30, 30);
default:
break;
}
return constraint;
}
CellItem::~CellItem() {
}
void CellItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
QWidget *widget) {
Q_UNUSED(widget);
Q_UNUSED(option);
QRectF frame(QPointF(0, 0), geometry().size());
qreal rounded_pix = (frame.width() + frame.height()) / 30;
qreal background_opacity = 1;
switch (state) {
case STATE_DEFAULT:
painter->setBrush(QBrush(background_color_default, Qt::SolidPattern));
break;
case STATE_NOT_ALLOWED:
painter->setBrush(QBrush(background_color_not_allowed, Qt::SolidPattern));
background_opacity = 0.5;
break;
case STATE_SELECTED:
painter->setBrush(QBrush(background_color_selected, Qt::SolidPattern));
break;
default:
break;
}
QPen pen;
pen.setWidth(1);
if (is_wait_char) pen.setColor(border_color_wait_char );
else
{
if (is_focused) pen.setColor( border_color_focused );
else pen.setColor( border_color_unfocused );
}
painter->setPen( pen );
painter->setOpacity(background_opacity);
painter->save();
painter->rotate(angle);
painter->drawRoundedRect(frame, rounded_pix, rounded_pix);
painter->restore();
painter->setOpacity(1);
if (!is_empty)
{
QFont font;
font.setPixelSize(frame.height() / 2);
font.setBold(true);
if (is_font_marked)
{
font.setItalic(true);
painter->setPen(font_color_marked);
}
else painter->setPen(font_color_unmarked);
painter->setFont(font);
painter->drawText(frame, c, QTextOption(Qt::AlignCenter));
}
}
void CellItem::mousePressEvent ( QGraphicsSceneMouseEvent * event )
{
Q_UNUSED(event);
}
QChar CellItem::getChar() {
return c;
}
bool CellItem::isEmpty() {
return is_empty;
}
void CellItem::delChar() {
is_empty = true;
update();
}
void CellItem::setWaitForChar(bool x)
{
is_wait_char = x;
x ? QGraphicsItem::setFocus() : QGraphicsItem::clearFocus();
update();
}
void CellItem::setFocus(bool focus) {
is_focused = focus;
update();
}
void CellItem::setState(State s)
{
state = s;
update();
}
State CellItem::getState()
{
return state;
}