363 lines
10 KiB
C++
363 lines
10 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram 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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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2015 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "gui/flatbutton.h"
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FlatButton::FlatButton(QWidget *parent, const QString &text, const style::flatButton &st) : Button(parent)
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, _text(text)
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, _st(st)
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, _autoFontPadding(0)
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, a_bg(st.bgColor->c)
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, a_text(st.color->c)
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, _a_appearance(animation(this, &FlatButton::step_appearance))
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, _opacity(1) {
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if (_st.width < 0) {
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_st.width = textWidth() - _st.width;
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} else if (!_st.width) {
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_st.width = textWidth() + _st.height - _st.font->height;
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}
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connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
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resize(_st.width, _st.height);
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setCursor(_st.cursor);
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}
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void FlatButton::setOpacity(float64 o) {
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_opacity = o;
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update();
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}
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float64 FlatButton::opacity() const {
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return _opacity;
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}
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void FlatButton::setText(const QString &text) {
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_text = text;
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update();
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}
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void FlatButton::setWidth(int32 w) {
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_st.width = w;
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if (_st.width < 0) {
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_st.width = textWidth() - _st.width;
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} else if (!_st.width) {
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_st.width = textWidth() + _st.height - _st.font->height;
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}
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resize(_st.width, height());
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}
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void FlatButton::setAutoFontSize(int32 padding, const QString &txt) {
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_autoFontPadding = padding;
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if (_autoFontPadding) {
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_textForAutoSize = txt;
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resizeEvent(0);
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} else {
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_textForAutoSize = QString();
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_autoFont = style::font();
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}
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update();
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}
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int32 FlatButton::textWidth() const {
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return _st.font->width(_text);
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}
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void FlatButton::resizeEvent(QResizeEvent *e) {
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if (_autoFontPadding) {
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_autoFont = _st.font;
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for (int32 s = _st.font->f.pixelSize(); s >= st::fsize; --s) {
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_autoFont = style::font(s, _st.font->flags(), _st.font->family());
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if (2 * _autoFontPadding + _autoFont->width(_textForAutoSize) <= width()) {
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break;
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}
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}
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}
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return Button::resizeEvent(e);
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}
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void FlatButton::step_appearance(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
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if (dt >= 1) {
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_a_appearance.stop();
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a_bg.finish();
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a_text.finish();
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} else {
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a_bg.update(dt, anim::linear);
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a_text.update(dt, anim::linear);
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}
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if (timer) update();
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}
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void FlatButton::onStateChange(int oldState, ButtonStateChangeSource source) {
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style::color bgColorTo = (_state & StateOver) ? ((_state & StateDown) ? _st.downBgColor : _st.overBgColor) : _st.bgColor;
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style::color colorTo = (_state & StateOver) ? ((_state & StateDown) ? _st.downColor : _st.overColor) : _st.color;
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a_bg.start(bgColorTo->c);
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a_text.start(colorTo->c);
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if (source == ButtonByUser || source == ButtonByPress) {
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_a_appearance.stop();
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a_bg.finish();
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a_text.finish();
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update();
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} else {
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_a_appearance.start();
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}
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}
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void FlatButton::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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QRect r(0, height() - _st.height, width(), _st.height);
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p.setOpacity(_opacity);
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p.fillRect(r, a_bg.current());
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p.setFont((_autoFont ? _autoFont : ((_state & StateOver) ? _st.overFont : _st.font))->f);
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p.setRenderHint(QPainter::TextAntialiasing);
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p.setPen(a_text.current());
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int32 top = (_state & StateOver) ? ((_state & StateDown) ? _st.downTextTop : _st.overTextTop) : _st.textTop;
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if (_autoFont) top += (_st.font->height - _autoFont->height) / 2;
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r.setTop(top);
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p.drawText(r, _text, style::al_top);
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}
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LinkButton::LinkButton(QWidget *parent, const QString &text, const style::linkButton &st) : Button(parent), _text(text), _st(st) {
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connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
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resize(_st.font->width(_text), _st.font->height);
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setCursor(style::cur_pointer);
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}
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void LinkButton::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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p.setFont(((_state & StateOver) ? _st.overFont : _st.font)->f);
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p.setPen(((_state & StateDown) ? _st.downColor : ((_state & StateOver) ? _st.overColor : _st.color))->p);
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p.drawText(0, ((_state & StateOver) ? _st.overFont : _st.font)->ascent, _text);
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}
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void LinkButton::setText(const QString &text) {
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_text = text;
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resize(_st.font->width(_text), _st.font->height);
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update();
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}
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void LinkButton::onStateChange(int oldState, ButtonStateChangeSource source) {
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update();
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}
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LinkButton::~LinkButton() {
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}
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IconedButton::IconedButton(QWidget *parent, const style::iconedButton &st, const QString &text) : Button(parent)
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, _text(text)
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, _st(st)
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, _width(_st.width)
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, a_opacity(_st.opacity)
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, a_bg(_st.bgColor->c)
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, _a_appearance(animation(this, &IconedButton::step_appearance))
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, _opacity(1) {
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if (_width < 0) {
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_width = _st.font->width(text) - _width;
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} else if (!_width) {
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_width = _st.font->width(text) + _st.height - _st.font->height;
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}
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connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
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resize(_width, _st.height);
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setCursor(_st.cursor);
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}
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void IconedButton::setOpacity(float64 opacity) {
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_opacity = opacity;
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update();
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}
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void IconedButton::setText(const QString &text) {
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if (_text != text) {
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_text = text;
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if (_st.width < 0) {
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_width = _st.font->width(text) - _st.width;
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} else if (!_st.width) {
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_width = _st.font->width(text) + _st.height - _st.font->height;
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}
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resize(_width, _st.height);
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update();
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}
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}
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QString IconedButton::getText() const {
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return _text;
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}
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void IconedButton::step_appearance(float64 ms, bool timer) {
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if (_st.duration <= 1) {
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_a_appearance.stop();
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a_opacity.finish();
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a_bg.finish();
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} else {
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float64 dt = ms / _st.duration;
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if (dt >= 1) {
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_a_appearance.stop();
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a_opacity.finish();
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a_bg.finish();
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} else {
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a_opacity.update(dt, anim::linear);
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a_bg.update(dt, anim::linear);
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}
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}
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if (timer) update();
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}
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void IconedButton::onStateChange(int oldState, ButtonStateChangeSource source) {
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a_opacity.start((_state & (StateOver | StateDown)) ? _st.overOpacity : _st.opacity);
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a_bg.start(((_state & (StateOver | StateDown)) ? _st.overBgColor : _st.bgColor)->c);
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if (source == ButtonByUser || source == ButtonByPress) {
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_a_appearance.stop();
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a_opacity.finish();
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a_bg.finish();
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update();
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} else {
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_a_appearance.start();
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}
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}
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void IconedButton::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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p.setOpacity(_opacity);
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p.fillRect(e->rect(), a_bg.current());
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p.setOpacity(a_opacity.current() * _opacity);
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if (!_text.isEmpty()) {
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p.setFont(_st.font->f);
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p.setRenderHint(QPainter::TextAntialiasing);
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p.setPen(_st.color->p);
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const QPoint &t((_state & StateDown) ? _st.downTextPos : _st.textPos);
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p.drawText(t.x(), t.y() + _st.font->ascent, _text);
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}
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const QRect &i((_state & StateDown) ? _st.downIcon : _st.icon);
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if (i.width()) {
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const QPoint &t((_state & StateDown) ? _st.downIconPos : _st.iconPos);
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p.drawPixmap(t, App::sprite(), i);
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}
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}
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MaskedButton::MaskedButton(QWidget *parent, const style::iconedButton &st, const QString &text) : IconedButton(parent, st, text) {
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}
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void MaskedButton::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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p.setOpacity(_opacity);
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p.setOpacity(a_opacity.current() * _opacity);
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if (!_text.isEmpty()) {
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p.setFont(_st.font->f);
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p.setRenderHint(QPainter::TextAntialiasing);
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p.setPen(a_bg.current());
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const QPoint &t((_state & StateDown) ? _st.downTextPos : _st.textPos);
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p.drawText(t.x(), t.y() + _st.font->ascent, _text);
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}
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const style::sprite &i((_state & StateDown) ? _st.downIcon : _st.icon);
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if (i.pxWidth()) {
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const QPoint &t((_state & StateDown) ? _st.downIconPos : _st.iconPos);
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p.fillRect(QRect(t, QSize(i.pxWidth(), i.pxHeight())), a_bg.current());
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p.drawPixmap(t, App::sprite(), i);
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}
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}
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BoxButton::BoxButton(QWidget *parent, const QString &text, const style::BoxButton &st) : Button(parent)
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, _text(text.toUpper())
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, _fullText(text.toUpper())
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, _textWidth(st.font->width(_text))
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, _st(st)
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, a_textBgOverOpacity(0)
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, a_textFg(st.textFg->c)
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, _a_over(animation(this, &BoxButton::step_over)) {
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if (_st.width <= 0) {
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resize(_textWidth - _st.width, _st.height);
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} else {
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if (_st.width < _textWidth + (_st.height - _st.font->height)) {
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_text = _st.font->elided(_fullText, qMax(_st.width - (_st.height - _st.font->height), 1.));
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_textWidth = _st.font->width(_text);
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}
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resize(_st.width, _st.height);
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}
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connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
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setCursor(style::cur_pointer);
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setAttribute(Qt::WA_OpaquePaintEvent);
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}
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void BoxButton::paintEvent(QPaintEvent *e) {
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Painter p(this);
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p.fillRect(rect(), _st.textBg->b);
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float64 o = a_textBgOverOpacity.current();
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if (o > 0) {
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p.setOpacity(o);
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App::roundRect(p, rect(), _st.textBgOver);
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p.setOpacity(1);
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p.setPen(a_textFg.current());
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} else {
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p.setPen(_st.textFg);
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}
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p.setFont(_st.font);
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p.drawText((width() - _textWidth) / 2, _st.textTop + _st.font->ascent, _text);
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}
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void BoxButton::step_over(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
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if (dt >= 1) {
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_a_over.stop();
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a_textFg.finish();
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a_textBgOverOpacity.finish();
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} else {
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a_textFg.update(dt, anim::linear);
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a_textBgOverOpacity.update(dt, anim::linear);
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}
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if (timer) update();
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}
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void BoxButton::onStateChange(int oldState, ButtonStateChangeSource source) {
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float64 textBgOverOpacity = (_state & StateOver) ? 1 : 0;
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style::color textFg = (_state & StateOver) ? (_st.textFgOver) : _st.textFg;
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a_textBgOverOpacity.start(textBgOverOpacity);
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a_textFg.start(textFg->c);
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if (source == ButtonByUser || source == ButtonByPress) {
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_a_over.stop();
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a_textBgOverOpacity.finish();
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a_textFg.finish();
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update();
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} else {
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_a_over.start();
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}
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}
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