276 lines
7.8 KiB
C++
276 lines
7.8 KiB
C++
/*
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This file is part of Telegram Desktop,
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an unofficial desktop messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014 John Preston, https://tdesktop.com
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*/
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#include "stdafx.h"
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#include "style.h"
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#include "flatinput.h"
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namespace {
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class FlatInputStyle : public QCommonStyle {
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public:
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FlatInputStyle() {
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}
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void drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget = 0) const {
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}
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QRect subElementRect(SubElement r, const QStyleOption *opt, const QWidget *widget = 0) const {
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switch (r) {
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case SE_LineEditContents:
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const FlatInput *w = widget ? qobject_cast<const FlatInput*>(widget) : 0;
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return w ? w->getTextRect() : QCommonStyle::subElementRect(r, opt, widget);
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break;
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}
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return QCommonStyle::subElementRect(r, opt, widget);
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}
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};
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FlatInputStyle _flatInputStyle;
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}
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FlatInput::FlatInput(QWidget *parent, const style::flatInput &st, const QString &pholder, const QString &v) : QLineEdit(v, parent), _oldtext(v), _kev(0), _customUpDown(false), _phVisible(!v.length()),
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a_phLeft(_phVisible ? 0 : st.phShift), a_phAlpha(_phVisible ? 1 : 0), a_phColor(st.phColor->c),
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a_borderColor(st.borderColor->c), a_bgColor(st.bgColor->c), _notingBene(0), _st(st) {
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resize(_st.width, _st.height);
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setFont(_st.font->f);
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setAlignment(_st.align);
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_ph = _st.font->m.elidedText(pholder, Qt::ElideRight, width() - _st.textMrg.left() - _st.textMrg.right() - _st.phPos.x() - 1);
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QPalette p(palette());
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p.setColor(QPalette::Text, _st.textColor->c);
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setPalette(p);
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connect(this, SIGNAL(textChanged(const QString &)), this, SLOT(onTextChange(const QString &)));
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connect(this, SIGNAL(textEdited(const QString &)), this, SLOT(onTextEdited()));
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setStyle(&_flatInputStyle);
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setTextMargins(0, 0, 0, 0);
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setContentsMargins(0, 0, 0, 0);
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setAttribute(Qt::WA_AcceptTouchEvents);
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_touchTimer.setSingleShot(true);
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connect(&_touchTimer, SIGNAL(timeout()), this, SLOT(onTouchTimer()));
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}
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void FlatInput::customUpDown(bool custom) {
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_customUpDown = custom;
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}
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void FlatInput::onTouchTimer() {
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_touchRightButton = true;
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}
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bool FlatInput::event(QEvent *e) {
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if (e->type() == QEvent::TouchBegin || e->type() == QEvent::TouchUpdate || e->type() == QEvent::TouchEnd || e->type() == QEvent::TouchCancel) {
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QTouchEvent *ev = static_cast<QTouchEvent*>(e);
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if (ev->device()->type() == QTouchDevice::TouchScreen) {
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touchEvent(ev);
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return QLineEdit::event(e);
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}
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}
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return QLineEdit::event(e);
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}
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void FlatInput::touchEvent(QTouchEvent *e) {
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switch (e->type()) {
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case QEvent::TouchBegin:
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if (_touchPress || e->touchPoints().isEmpty()) return;
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_touchTimer.start(QApplication::startDragTime());
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_touchPress = true;
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_touchMove = _touchRightButton = false;
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_touchStart = e->touchPoints().cbegin()->screenPos().toPoint();
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break;
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case QEvent::TouchUpdate:
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if (!_touchPress || e->touchPoints().isEmpty()) return;
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if (!_touchMove && (e->touchPoints().cbegin()->screenPos().toPoint() - _touchStart).manhattanLength() >= QApplication::startDragDistance()) {
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_touchMove = true;
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}
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break;
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case QEvent::TouchEnd:
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if (!_touchPress) return;
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if (!_touchMove && window()) {
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Qt::MouseButton btn(_touchRightButton ? Qt::RightButton : Qt::LeftButton);
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QPoint mapped(mapFromGlobal(_touchStart)), winMapped(window()->mapFromGlobal(_touchStart));
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if (_touchRightButton) {
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QContextMenuEvent contextEvent(QContextMenuEvent::Mouse, mapped, _touchStart);
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contextMenuEvent(&contextEvent);
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}
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}
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_touchTimer.stop();
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_touchPress = _touchMove = _touchRightButton = false;
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break;
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case QEvent::TouchCancel:
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_touchPress = false;
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_touchTimer.stop();
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break;
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}
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}
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QRect FlatInput::getTextRect() const {
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return rect().marginsRemoved(_st.textMrg + QMargins(-2, -1, -2, -1));
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}
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void FlatInput::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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p.fillRect(rect(), a_bgColor.current());
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if (_st.borderWidth) {
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QBrush b(a_borderColor.current());
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p.fillRect(0, 0, width() - _st.borderWidth, _st.borderWidth, b);
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p.fillRect(width() - _st.borderWidth, 0, _st.borderWidth, height() - _st.borderWidth, b);
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p.fillRect(_st.borderWidth, height() - _st.borderWidth, width() - _st.borderWidth, _st.borderWidth, b);
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p.fillRect(0, _st.borderWidth, _st.borderWidth, height() - _st.borderWidth, b);
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}
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if (_st.imgRect.pxWidth()) {
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p.drawPixmap(_st.imgPos, App::sprite(), _st.imgRect);
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}
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bool phDraw = _phVisible;
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if (animating()) {
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p.setOpacity(a_phAlpha.current());
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phDraw = true;
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}
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if (phDraw) {
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p.save();
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p.setClipRect(rect());
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QRect phRect(_st.textMrg.left() + _st.phPos.x() + a_phLeft.current(), _st.textMrg.top() + _st.phPos.y(), width() - _st.textMrg.left() - _st.textMrg.right(), height() - _st.textMrg.top() - _st.textMrg.bottom());
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p.setFont(_st.font->f);
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p.setPen(a_phColor.current());
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p.drawText(phRect, _ph, QTextOption(_st.phAlign));
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p.restore();
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}
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QLineEdit::paintEvent(e);
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}
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void FlatInput::focusInEvent(QFocusEvent *e) {
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a_phColor.start(_st.phFocusColor->c);
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if (_notingBene <= 0) {
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a_borderColor.start(_st.borderActive->c);
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}
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a_bgColor.start(_st.bgActive->c);
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anim::start(this);
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QLineEdit::focusInEvent(e);
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emit focused();
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}
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void FlatInput::focusOutEvent(QFocusEvent *e) {
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a_phColor.start(_st.phColor->c);
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if (_notingBene <= 0) {
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a_borderColor.start(_st.borderColor->c);
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}
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a_bgColor.start(_st.bgColor->c);
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anim::start(this);
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QLineEdit::focusOutEvent(e);
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emit blurred();
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}
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QSize FlatInput::sizeHint() const {
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return geometry().size();
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}
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QSize FlatInput::minimumSizeHint() const {
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return geometry().size();
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}
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bool FlatInput::animStep(float64 ms) {
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float dt = ms / _st.phDuration;
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bool res = true;
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if (dt >= 1) {
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res = false;
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a_phLeft.finish();
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a_phAlpha.finish();
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a_phColor.finish();
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a_bgColor.finish();
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if (_notingBene > 0) {
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_notingBene = -1;
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a_borderColor.start((hasFocus() ? _st.borderActive : _st.borderColor)->c);
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anim::start(this);
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return true;
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} else if (_notingBene) {
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_notingBene = 0;
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}
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a_borderColor.finish();
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} else {
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a_phLeft.update(dt, _st.phLeftFunc);
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a_phAlpha.update(dt, _st.phAlphaFunc);
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a_phColor.update(dt, _st.phColorFunc);
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a_bgColor.update(dt, _st.phColorFunc);
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a_borderColor.update(dt, _st.phColorFunc);
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}
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update();
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return res;
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}
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void FlatInput::updatePlaceholder() {
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bool vis = !text().length();
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if (vis == _phVisible) return;
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a_phLeft.start(vis ? 0 : _st.phShift);
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a_phAlpha.start(vis ? 1 : 0);
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anim::start(this);
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_phVisible = vis;
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}
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void FlatInput::correctValue(QKeyEvent *e, const QString &was) {
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}
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void FlatInput::keyPressEvent(QKeyEvent *e) {
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QString was(text());
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_kev = e;
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if (_customUpDown && (e->key() == Qt::Key_Up || e->key() == Qt::Key_Down)) {
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e->ignore();
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} else {
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QLineEdit::keyPressEvent(e);
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}
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if (was == text()) { // call correct manually
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correctValue(_kev, was);
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_oldtext = text();
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if (was != _oldtext) emit changed();
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updatePlaceholder();
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}
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if (e->key() == Qt::Key_Escape) {
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emit cancelled();
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} else if (e->key() == Qt::Key_Return || e->key() == Qt::Key_Enter) {
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emit accepted();
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}
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_kev = 0;
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}
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void FlatInput::onTextEdited() {
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QString was(_oldtext);
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correctValue(_kev, was);
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_oldtext = text();
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if (was != _oldtext) emit changed();
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updatePlaceholder();
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}
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void FlatInput::onTextChange(const QString &text) {
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_oldtext = text;
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}
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void FlatInput::notaBene() {
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_notingBene = 1;
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setFocus();
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a_borderColor.start(_st.borderError->c);
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anim::start(this);
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}
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