ArchitectureColoredPainting/qt-material-widgets/components/qtmaterialtextfield_interna...

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2023-03-06 12:38:25 +08:00
#include "qtmaterialtextfield_internal.h"
#include <QPropertyAnimation>
#include <QEventTransition>
#include <QPainter>
#include "qtmaterialtextfield.h"
/*!
* \class QtMaterialTextFieldStateMachine
* \internal
*/
QtMaterialTextFieldStateMachine::QtMaterialTextFieldStateMachine(QtMaterialTextField *parent)
: QStateMachine(parent),
m_textField(parent),
m_normalState(new QState),
m_focusedState(new QState),
m_label(0),
m_offsetAnimation(0),
m_colorAnimation(0),
m_progress(0.0)
{
Q_ASSERT(parent);
addState(m_normalState);
addState(m_focusedState);
setInitialState(m_normalState);
QEventTransition *transition;
QPropertyAnimation *animation;
transition = new QEventTransition(parent, QEvent::FocusIn);
transition->setTargetState(m_focusedState);
m_normalState->addTransition(transition);
animation = new QPropertyAnimation(this, "progress", this);
animation->setEasingCurve(QEasingCurve::InCubic);
animation->setDuration(310);
transition->addAnimation(animation);
transition = new QEventTransition(parent, QEvent::FocusOut);
transition->setTargetState(m_normalState);
m_focusedState->addTransition(transition);
animation = new QPropertyAnimation(this, "progress", this);
animation->setEasingCurve(QEasingCurve::OutCubic);
animation->setDuration(310);
transition->addAnimation(animation);
m_normalState->assignProperty(this, "progress", 0);
m_focusedState->assignProperty(this, "progress", 1);
setupProperties();
connect(m_textField, SIGNAL(textChanged(QString)), this, SLOT(setupProperties()));
}
QtMaterialTextFieldStateMachine::~QtMaterialTextFieldStateMachine()
{
}
void QtMaterialTextFieldStateMachine::setLabel(QtMaterialTextFieldLabel *label)
{
if (m_label) {
delete m_label;
}
if (m_offsetAnimation) {
removeDefaultAnimation(m_offsetAnimation);
delete m_offsetAnimation;
}
if (m_colorAnimation) {
removeDefaultAnimation(m_colorAnimation);
delete m_colorAnimation;
}
m_label = label;
if (m_label)
{
m_offsetAnimation = new QPropertyAnimation(m_label, "offset", this);
m_offsetAnimation->setDuration(210);
m_offsetAnimation->setEasingCurve(QEasingCurve::OutCubic);
addDefaultAnimation(m_offsetAnimation);
m_colorAnimation = new QPropertyAnimation(m_label, "color", this);
m_colorAnimation->setDuration(210);
addDefaultAnimation(m_colorAnimation);
}
setupProperties();
}
void QtMaterialTextFieldStateMachine::setupProperties()
{
if (m_label)
{
const int m = m_textField->textMargins().top();
if (m_textField->text().isEmpty()) {
m_normalState->assignProperty(m_label, "offset", QPointF(0, 26));
} else {
m_normalState->assignProperty(m_label, "offset", QPointF(0, 0-m));
}
m_focusedState->assignProperty(m_label, "offset", QPointF(0, 0-m));
m_focusedState->assignProperty(m_label, "color", m_textField->inkColor());
m_normalState->assignProperty(m_label, "color", m_textField->labelColor());
if (0 != m_label->offset().y() && !m_textField->text().isEmpty()) {
m_label->setOffset(QPointF(0, 0-m));
} else if (!m_textField->hasFocus() && m_label->offset().y() <= 0 && m_textField->text().isEmpty()) {
m_label->setOffset(QPointF(0, 26));
}
}
m_textField->update();
}
/*!
* \class QtMaterialTextFieldLabel
* \internal
*/
QtMaterialTextFieldLabel::QtMaterialTextFieldLabel(QtMaterialTextField *parent)
: QWidget(parent),
m_textField(parent),
m_scale(1),
m_posX(0),
m_posY(26),
m_color(parent->labelColor())
{
Q_ASSERT(parent);
QFont font("Roboto", parent->labelFontSize(), QFont::Medium);
font.setLetterSpacing(QFont::PercentageSpacing, 102);
setFont(font);
}
QtMaterialTextFieldLabel::~QtMaterialTextFieldLabel()
{
}
/*!
* \reimp
*/
void QtMaterialTextFieldLabel::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
if (!m_textField->hasLabel()) {
return;
}
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.scale(m_scale, m_scale);
painter.setPen(m_color);
painter.setOpacity(1);
QPointF pos(2+m_posX, height()-36+m_posY);
painter.drawText(pos.x(), pos.y(), m_textField->label());
}