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50
51 #include "bookdelegate.h"
52
53 #include <QtWidgets>
54
BookDelegate(QObject * parent)55 BookDelegate::BookDelegate(QObject *parent)
56 : QSqlRelationalDelegate(parent), star(QPixmap(":images/star.png"))
57 {
58 }
59
paint(QPainter * painter,const QStyleOptionViewItem & option,const QModelIndex & index) const60 void BookDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
61 const QModelIndex &index) const
62 {
63 if (index.column() != 5) {
64 QStyleOptionViewItem opt = option;
65 // Since we draw the grid ourselves:
66 opt.rect.adjust(0, 0, -1, -1);
67 QSqlRelationalDelegate::paint(painter, opt, index);
68 } else {
69 const QAbstractItemModel *model = index.model();
70 QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled) ?
71 (option.state & QStyle::State_Active) ?
72 QPalette::Normal :
73 QPalette::Inactive :
74 QPalette::Disabled;
75
76 if (option.state & QStyle::State_Selected)
77 painter->fillRect(
78 option.rect,
79 option.palette.color(cg, QPalette::Highlight));
80
81 int rating = model->data(index, Qt::DisplayRole).toInt();
82 int width = star.width();
83 int height = star.height();
84 int x = option.rect.x();
85 int y = option.rect.y() + (option.rect.height() / 2) - (height / 2);
86 for (int i = 0; i < rating; ++i) {
87 painter->drawPixmap(x, y, star);
88 x += width;
89 }
90 // Since we draw the grid ourselves:
91 drawFocus(painter, option, option.rect.adjusted(0, 0, -1, -1));
92 }
93
94 QPen pen = painter->pen();
95 painter->setPen(option.palette.color(QPalette::Mid));
96 painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
97 painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
98 painter->setPen(pen);
99 }
100
sizeHint(const QStyleOptionViewItem & option,const QModelIndex & index) const101 QSize BookDelegate::sizeHint(const QStyleOptionViewItem &option,
102 const QModelIndex &index) const
103 {
104 if (index.column() == 5)
105 return QSize(5 * star.width(), star.height()) + QSize(1, 1);
106 // Since we draw the grid ourselves:
107 return QSqlRelationalDelegate::sizeHint(option, index) + QSize(1, 1);
108 }
109
editorEvent(QEvent * event,QAbstractItemModel * model,const QStyleOptionViewItem & option,const QModelIndex & index)110 bool BookDelegate::editorEvent(QEvent *event, QAbstractItemModel *model,
111 const QStyleOptionViewItem &option,
112 const QModelIndex &index)
113 {
114 if (index.column() != 5)
115 return QSqlRelationalDelegate::editorEvent(event, model, option, index);
116
117 if (event->type() == QEvent::MouseButtonPress) {
118 QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
119 int stars = qBound(0, int(0.7 + qreal(mouseEvent->pos().x()
120 - option.rect.x()) / star.width()), 5);
121 model->setData(index, QVariant(stars));
122 // So that the selection can change:
123 return false;
124 }
125
126 return true;
127 }
128
createEditor(QWidget * parent,const QStyleOptionViewItem & option,const QModelIndex & index) const129 QWidget *BookDelegate::createEditor(QWidget *parent,
130 const QStyleOptionViewItem &option,
131 const QModelIndex &index) const
132 {
133 if (index.column() != 4)
134 return QSqlRelationalDelegate::createEditor(parent, option, index);
135
136 // For editing the year, return a spinbox with a range from -1000 to 2100.
137 QSpinBox *sb = new QSpinBox(parent);
138 sb->setFrame(false);
139 sb->setMaximum(2100);
140 sb->setMinimum(-1000);
141
142 return sb;
143 }
144
