tdesktop/Telegram/SourceFiles/gui/flatinput.cpp

281 lines
8.1 KiB
C++

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