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/*
fontmodel.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Stephen Kelly <stephen.kelly@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "fontmodel.h"
#include <QFontMetrics>
#include <QPixmap>
#include <QPainter>
using namespace GammaRay;
FontModel::FontModel(QObject *parent)
: QAbstractTableModel(parent)
, m_size(12)
, m_bold(false)
, m_italic(false)
, m_underline(false)
{
}
QVector<QFont> FontModel::currentFonts() const
{
return m_fonts;
}
void FontModel::updateFonts(const QVector<QFont> &fonts)
{
if (!m_fonts.isEmpty()) {
beginRemoveRows(QModelIndex(), 0, m_fonts.size() - 1);
m_fonts.clear();
endRemoveRows();
}
if (fonts.isEmpty())
return;
beginInsertRows(QModelIndex(), 0, fonts.size() - 1);
m_fonts = fonts;
for (int i = 0; i < m_fonts.size(); ++i) {
QFont &font = m_fonts[i];
font.setPointSize(m_size);
font.setBold(m_bold);
font.setItalic(m_italic);
font.setUnderline(m_underline);
}
endInsertRows();
}
void FontModel::updateText(const QString &text)
{
if (text == m_text)
return;
m_text = text;
fontDataChanged();
}
QVariant FontModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
if (section == 0)
return "Font Family";
else if (section == 1)
return "Style Name";
else if (section == 2)
return "Text Preview";
}
return QAbstractTableModel::headerData(section, orientation, role);
}
int FontModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return m_fonts.size();
}
int FontModel::columnCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return 3;
}
QVariant FontModel::data(const QModelIndex &index, int role) const
{
if (index.column() == 0) {
if (role == Qt::DisplayRole)
return m_fonts.at(index.row()).family();
} else if (index.column() == 1) {
if (role == Qt::DisplayRole)
return m_fonts.at(index.row()).styleName();
} else if (index.column() == 2) {
if (role == Qt::DecorationRole || role == Qt::SizeHintRole) {
const QFont &font = m_fonts.at(index.row());
QFontMetrics metrics(font);
const QString text = m_text.isEmpty() ? tr("<no text>") : m_text;
const QRect rect = metrics.boundingRect(text.left(100));
if (role == Qt::SizeHintRole)
return rect.size();
QPixmap pixmap(rect.size());
pixmap.fill(m_background);
QPainter painter(&pixmap);
painter.setPen(m_foreground);
painter.setFont(font);
painter.drawText(0, -rect.y(), text);
return pixmap;
}
}
return QVariant();
}
void FontModel::setPointSize(int size)
{
if (size == m_size)
return;
m_size = size;
for (int i = 0; i < m_fonts.size(); ++i)
m_fonts[i].setPointSize(size);
fontDataChanged();
}
void FontModel::toggleItalicFont(bool italic)
{
if (italic == m_italic)
return;
m_italic = italic;
for (int i = 0; i < m_fonts.size(); ++i)
m_fonts[i].setItalic(italic);
fontDataChanged();
}
void FontModel::toggleUnderlineFont(bool underline)
{
if (underline == m_underline)
return;
m_underline = underline;
for (int i = 0; i < m_fonts.size(); ++i)
m_fonts[i].setUnderline(underline);
fontDataChanged();
}
void FontModel::toggleBoldFont(bool bold)
{
if (bold == m_bold)
return;
m_bold = bold;
for (int i = 0; i < m_fonts.size(); ++i)
m_fonts[i].setBold(bold);
fontDataChanged();
}
void FontModel::setColors(const QColor &foreground, const QColor &background)
{
if (foreground == m_foreground && background == m_background)
return;
m_foreground = foreground;
m_background = background;
fontDataChanged();
}
void FontModel::fontDataChanged()
{
if (m_fonts.isEmpty())
return;
emit dataChanged(index(0, 2), index(rowCount() - 1, 2));
}
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