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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qtgradientview.h"
#include "qtgradientmanager.h"
#include "qtgradientdialog.h"
#include "qtgradientutils.h"
#include <QtWidgets/QMessageBox>
#include <QtGui/QAction>
#include <QtGui/QClipboard>
#include <QtGui/QPainter>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
void QtGradientView::slotGradientAdded(const QString &id, const QGradient &gradient)
{
QListWidgetItem *item = new QListWidgetItem(QtGradientUtils::gradientPixmap(gradient), id, m_ui.listWidget);
item->setToolTip(id);
item->setSizeHint(QSize(72, 84));
item->setFlags(item->flags() | Qt::ItemIsEditable);
m_idToItem[id] = item;
m_itemToId[item] = id;
}
void QtGradientView::slotGradientRenamed(const QString &id, const QString &newId)
{
if (!m_idToItem.contains(id))
return;
QListWidgetItem *item = m_idToItem.value(id);
item->setText(newId);
item->setToolTip(newId);
m_itemToId[item] = newId;
m_idToItem.remove(id);
m_idToItem[newId] = item;
}
void QtGradientView::slotGradientChanged(const QString &id, const QGradient &newGradient)
{
if (!m_idToItem.contains(id))
return;
QListWidgetItem *item = m_idToItem.value(id);
item->setIcon(QtGradientUtils::gradientPixmap(newGradient));
}
void QtGradientView::slotGradientRemoved(const QString &id)
{
if (!m_idToItem.contains(id))
return;
QListWidgetItem *item = m_idToItem.value(id);
delete item;
m_itemToId.remove(item);
m_idToItem.remove(id);
}
void QtGradientView::slotNewGradient()
{
bool ok;
QListWidgetItem *item = m_ui.listWidget->currentItem();
QGradient grad = QLinearGradient();
if (item)
grad = m_manager->gradients().value(m_itemToId.value(item));
QGradient gradient = QtGradientDialog::getGradient(&ok, grad, this);
if (!ok)
return;
QString id = m_manager->addGradient(tr("Grad"), gradient);
m_ui.listWidget->setCurrentItem(m_idToItem.value(id));
}
void QtGradientView::slotEditGradient()
{
bool ok;
QListWidgetItem *item = m_ui.listWidget->currentItem();
if (!item)
return;
const QString id = m_itemToId.value(item);
QGradient grad = m_manager->gradients().value(id);
QGradient gradient = QtGradientDialog::getGradient(&ok, grad, this);
if (!ok)
return;
m_manager->changeGradient(id, gradient);
}
void QtGradientView::slotRemoveGradient()
{
QListWidgetItem *item = m_ui.listWidget->currentItem();
if (!item)
return;
if (QMessageBox::question(this, tr("Remove Gradient"),
tr("Are you sure you want to remove the selected gradient?"),
QMessageBox::Yes | QMessageBox::Cancel, QMessageBox::Cancel) != QMessageBox::Yes)
return;
const QString id = m_itemToId.value(item);
m_manager->removeGradient(id);
}
void QtGradientView::slotRenameGradient()
{
QListWidgetItem *item = m_ui.listWidget->currentItem();
if (!item)
return;
m_ui.listWidget->editItem(item);
}
void QtGradientView::slotRenameGradientItem(QListWidgetItem *item)
{
if (!item)
return;
const QString id = m_itemToId.value(item);
m_manager->renameGradient(id, item->text());
}
void QtGradientView::slotCurrentItemChanged(QListWidgetItem *item)
{
m_editAction->setEnabled(item);
m_renameAction->setEnabled(item);
m_removeAction->setEnabled(item);
emit currentGradientChanged(m_itemToId.value(item));
}
void QtGradientView::slotGradientActivated(QListWidgetItem *item)
{
const QString id = m_itemToId.value(item);
if (!id.isEmpty())
emit gradientActivated(id);
}
QtGradientView::QtGradientView(QWidget *parent)
: QWidget(parent)
{
m_manager = nullptr;
m_ui.setupUi(this);
m_ui.listWidget->setViewMode(QListView::IconMode);
m_ui.listWidget->setMovement(QListView::Static);
m_ui.listWidget->setTextElideMode(Qt::ElideRight);
m_ui.listWidget->setResizeMode(QListWidget::Adjust);
m_ui.listWidget->setIconSize(QSize(64, 64));
m_ui.listWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
QPalette pal = m_ui.listWidget->viewport()->palette();
int pixSize = 18;
QPixmap pm(2 * pixSize, 2 * pixSize);
QColor c1 = palette().color(QPalette::Midlight);
QColor c2 = palette().color(QPalette::Dark);
QPainter pmp(&pm);
pmp.fillRect(0, 0, pixSize, pixSize, c1);
pmp.fillRect(pixSize, pixSize, pixSize, pixSize, c1);
pmp.fillRect(0, pixSize, pixSize, pixSize, c2);
pmp.fillRect(pixSize, 0, pixSize, pixSize, c2);
pal.setBrush(QPalette::Base, QBrush(pm));
m_ui.listWidget->viewport()->setPalette(pal);
connect(m_ui.listWidget, &QListWidget::itemDoubleClicked, this, &QtGradientView::slotGradientActivated);
connect(m_ui.listWidget, &QListWidget::itemChanged, this, &QtGradientView::slotRenameGradientItem);
connect(m_ui.listWidget, &QListWidget::currentItemChanged, this, &QtGradientView::slotCurrentItemChanged);
m_newAction = new QAction(QIcon(":/qt-project.org/qtgradienteditor/images/plus.png"_L1), tr("New..."), this);
m_editAction = new QAction(QIcon(":/qt-project.org/qtgradienteditor/images/edit.png"_L1), tr("Edit..."), this);
m_renameAction = new QAction(tr("Rename"), this);
m_removeAction = new QAction(QIcon(":/qt-project.org/qtgradienteditor/images/minus.png"_L1), tr("Remove"), this);
connect(m_newAction, &QAction::triggered, this, &QtGradientView::slotNewGradient);
connect(m_editAction, &QAction::triggered, this, &QtGradientView::slotEditGradient);
connect(m_removeAction, &QAction::triggered, this, &QtGradientView::slotRemoveGradient);
connect(m_renameAction, &QAction::triggered, this, &QtGradientView::slotRenameGradient);
m_ui.listWidget->addAction(m_newAction);
m_ui.listWidget->addAction(m_editAction);
m_ui.listWidget->addAction(m_renameAction);
m_ui.listWidget->addAction(m_removeAction);
m_ui.newButton->setDefaultAction(m_newAction);
m_ui.editButton->setDefaultAction(m_editAction);
m_ui.renameButton->setDefaultAction(m_renameAction);
m_ui.removeButton->setDefaultAction(m_removeAction);
m_ui.listWidget->setContextMenuPolicy(Qt::ActionsContextMenu);
}
void QtGradientView::setGradientManager(QtGradientManager *manager)
{
if (m_manager == manager)
return;
if (m_manager) {
disconnect(m_manager, &QtGradientManager::gradientAdded,
this, &QtGradientView::slotGradientAdded);
disconnect(m_manager, &QtGradientManager::gradientRenamed,
this, &QtGradientView::slotGradientRenamed);
disconnect(m_manager, &QtGradientManager::gradientChanged,
this, &QtGradientView::slotGradientChanged);
disconnect(m_manager, &QtGradientManager::gradientRemoved,
this, &QtGradientView::slotGradientRemoved);
m_ui.listWidget->clear();
m_idToItem.clear();
m_itemToId.clear();
}
m_manager = manager;
if (!m_manager)
return;
QMap<QString, QGradient> gradients = m_manager->gradients();
for (auto itGrad = gradients.cbegin(), end = gradients.cend(); itGrad != end; ++itGrad)
slotGradientAdded(itGrad.key(), itGrad.value());
connect(m_manager, &QtGradientManager::gradientAdded,
this, &QtGradientView::slotGradientAdded);
connect(m_manager, &QtGradientManager::gradientRenamed,
this, &QtGradientView::slotGradientRenamed);
connect(m_manager, &QtGradientManager::gradientChanged,
this, &QtGradientView::slotGradientChanged);
connect(m_manager, &QtGradientManager::gradientRemoved,
this, &QtGradientView::slotGradientRemoved);
}
QtGradientManager *QtGradientView::gradientManager() const
{
return m_manager;
}
void QtGradientView::setCurrentGradient(const QString &id)
{
QListWidgetItem *item = m_idToItem.value(id);
if (!item)
return;
m_ui.listWidget->setCurrentItem(item);
}
QString QtGradientView::currentGradient() const
{
return m_itemToId.value(m_ui.listWidget->currentItem());
}
QT_END_NAMESPACE
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