rssguard/src/librssguard/gui/reusable/helpspoiler.cpp

97 lines
4.0 KiB
C++

// For license of this file, see <project-root-folder>/LICENSE.md.
#include "gui/reusable/helpspoiler.h"
#include "definitions/definitions.h"
#include "gui/guiutilities.h"
#include "gui/reusable/plaintoolbutton.h"
#include "miscellaneous/application.h"
#include "miscellaneous/iconfactory.h"
#include <QGridLayout>
#include <QLabel>
#include <QParallelAnimationGroup>
#include <QPropertyAnimation>
#include <QScrollArea>
#include <QToolButton>
HelpSpoiler::HelpSpoiler(QWidget* parent) : QWidget(parent),
m_btnToggle(new QToolButton(this)), m_content(new QScrollArea(this)), m_animation(new QParallelAnimationGroup(this)),
m_layout(new QGridLayout(this)), m_text(new QLabel(this)) {
m_btnToggle->setStyleSheet(QSL("QToolButton { border: none; }"));
m_btnToggle->setToolButtonStyle(Qt::ToolButtonStyle::ToolButtonTextBesideIcon);
m_btnToggle->setArrowType(Qt::ArrowType::RightArrow);
m_btnToggle->setText(tr("View more information on this"));
m_btnToggle->setCheckable(true);
m_btnToggle->setChecked(false);
m_content->setSizePolicy(QSizePolicy::Policy::Expanding, QSizePolicy::Policy::Fixed);
m_content->setMaximumHeight(0);
m_content->setMinimumHeight(0);
m_animation->addAnimation(new QPropertyAnimation(this, QSL("minimumHeight").toLocal8Bit()));
m_animation->addAnimation(new QPropertyAnimation(this, QSL("maximumHeight").toLocal8Bit()));
m_animation->addAnimation(new QPropertyAnimation(m_content, QSL("maximumHeight").toLocal8Bit()));
// Don't waste space.
m_layout->setHorizontalSpacing(0);
m_layout->setVerticalSpacing(0);
m_layout->setContentsMargins(0, 0, 0, 0);
PlainToolButton* btn_help = new PlainToolButton(this);
btn_help->setPadding(0);
btn_help->setIcon(qApp->icons()->fromTheme(QSL("dialog-question")));
m_layout->addWidget(btn_help, 0, 0);
m_layout->addWidget(m_btnToggle, 0, 1, 1, 1, Qt::AlignmentFlag::AlignLeft);
m_layout->addWidget(m_content, 1, 0, 1, 2);
QObject::connect(m_btnToggle, &QToolButton::clicked, [this](const bool checked) {
const auto collapsed_height = sizeHint().height() - m_content->maximumHeight();
auto content_height = m_text->fontMetrics().boundingRect(QRect(QPoint(0, 0),
QPoint(m_text->width(), 1000)),
Qt::TextFlag::TextWordWrap,
m_text->text()).height() +
(2 * m_text->fontMetrics().lineSpacing());
for (int i = 0; i < m_animation->animationCount() - 1; i++) {
QPropertyAnimation* spoiler_animation = static_cast<QPropertyAnimation*>(m_animation->animationAt(i));
spoiler_animation->setDuration(100);
spoiler_animation->setStartValue(collapsed_height);
spoiler_animation->setEndValue(collapsed_height + content_height);
}
QPropertyAnimation* content_animation = static_cast<QPropertyAnimation*>(m_animation->animationAt(m_animation->animationCount() - 1));
content_animation->setDuration(100);
content_animation->setStartValue(0);
content_animation->setEndValue(content_height);
m_btnToggle->setArrowType(checked
? Qt::ArrowType::DownArrow
: Qt::ArrowType::RightArrow);
m_animation->setDirection(checked
? QAbstractAnimation::Direction::Forward
: QAbstractAnimation::Direction::Backward);
m_animation->start();
});
m_text->setWordWrap(true);
auto* content_layout = new QVBoxLayout(m_content);
content_layout->addWidget(m_text, 1);
}
void HelpSpoiler::setHelpText(const QString& title, const QString& text, bool is_warning) {
m_btnToggle->setText(title);
setHelpText(text, is_warning);
}
void HelpSpoiler::setHelpText(const QString& text, bool is_warning) {
m_text->setText(text);
GuiUtilities::setLabelAsNotice(*m_text, is_warning, false);
}