72 lines
2.5 KiB
C++
72 lines
2.5 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) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "ui/buttons/left_outline_button.h"
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namespace Ui {
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LeftOutlineButton::LeftOutlineButton(QWidget *parent, const QString &text, const style::OutlineButton &st) : Button(parent)
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, _text(text)
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, _fullText(text)
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, _textWidth(st.font->width(_text))
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, _fullTextWidth(_textWidth)
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, _st(st) {
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resizeToWidth(_textWidth + _st.padding.left() + _st.padding.right());
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setCursor(style::cur_pointer);
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}
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void LeftOutlineButton::setText(const QString &text) {
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_text = text;
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_fullText = text;
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_fullTextWidth = _textWidth = _st.font->width(_text);
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resizeToWidth(width());
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update();
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}
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void LeftOutlineButton::resizeToWidth(int newWidth) {
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int availableWidth = qMax(newWidth - _st.padding.left() - _st.padding.right(), 1);
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if ((availableWidth < _fullTextWidth) || (_textWidth < availableWidth)) {
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_text = _st.font->elided(_fullText, availableWidth);
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_textWidth = _st.font->width(_text);
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}
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resize(newWidth, _st.padding.top() + _st.font->height + _st.padding.bottom());
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}
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void LeftOutlineButton::paintEvent(QPaintEvent *e) {
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Painter p(this);
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bool over = (_state & Button::StateOver);
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if (width() > _st.outlineWidth) {
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p.fillRect(rtlrect(0, 0, _st.outlineWidth, height(), width()), over ? _st.outlineFgOver : _st.outlineFg);
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p.fillRect(rtlrect(_st.outlineWidth, 0, width() - _st.outlineWidth, height(), width()), over ? _st.textBgOver : _st.textBg);
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}
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p.setFont(_st.font);
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p.setPen(over ? _st.textFgOver : _st.textFg);
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p.drawTextLeft(_st.padding.left(), _st.padding.top(), width(), _text, _textWidth);
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}
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void LeftOutlineButton::onStateChanged(int oldState, ButtonStateChangeSource source) {
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update();
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}
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} // namespace Ui
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