Differential D22324 Diff 62099 src/Gui/ProgressButton.cpp

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src/Gui/ProgressButton.cpp

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1​/*
2​ * Copyright (C) 2019 David Redondo <david@david-redondo.de>
3​ *
4​ * This library is free software; you can redistribute it and/or
5​ * modify it under the terms of the GNU Lesser General Public
6​ * License as published by the Free Software Foundation; either
7​ * version 2.1 of the License, or (at your option) any later version.
8​ *
9​ * This library is distributed in the hope that it will be useful,
10​ * but WITHOUT ANY WARRANTY; without even the implied warranty of
11​ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12​ * Lesser General Public License for more details.
13​ *
14​ * You should have received a copy of the GNU Lesser General Public
15​ * License along with this library; if not, write to the Free Software
16​ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17​ */
18​
19​#include "ProgressButton.h"
20​
21​#include <QStyleOption>
22​#include <QStylePainter>
23​
24​#include <KColorScheme>
25​
26​ProgressButton::ProgressButton(QWidget* parent)
27​ : QToolButton{parent}
28​ , mProgress(0)
29​{
30​}
31​
32​void ProgressButton::setProgress(double progress)
33​{
34​ mProgress = progress;
35​ repaint();
36​}
37​
38​void ProgressButton::paintEvent(QPaintEvent* event)
39​{
40​ //Draw Button without text and icon, note the missing text and icon in options
41​ QStylePainter painter(this);
42​ QStyleOption toolbuttonOptions;
43​ toolbuttonOptions.initFrom(this);
44​ if (isDown()) {
45​ toolbuttonOptions.state.setFlag(QStyle::State_Sunken);
46​ } else {
47​ toolbuttonOptions.state.setFlag(QStyle::State_Raised);
48​ }
49​ painter.drawPrimitive(QStyle::PE_PanelButtonTool, toolbuttonOptions);
broulikUnsubmitted
Done

qFuzzyIsNull

broulik: `qFuzzyIsNull`
50​ auto pal = palette();
51​ if (!qFuzzyIsNull(mProgress)) {
52​ //Draw overlay
53​ KColorScheme::adjustForeground(pal, KColorScheme::PositiveText, QPalette::Button, KColorScheme::Button);
54​ QStyleOption overlayOption;
55​ overlayOption.rect = layoutDirection() == Qt::LeftToRight
56​ ? QRect(0, 0, width() * mProgress, height())
57​ : QRect(width() * (1-mProgress), 0, width(), height());
58​ overlayOption.palette = pal;
59​ overlayOption.state.setFlag(QStyle::State_Sunken, isDown());
60​ painter.setCompositionMode(QPainter::CompositionMode_SourceAtop);
61​ painter.setOpacity(0.5);
62​ painter.drawPrimitive(QStyle::PE_PanelButtonTool, overlayOption);
63​ }
64​ //Finally draw text and icon and outline
65​ QStyleOptionToolButton labelOptions;
66​ labelOptions.initFrom(this);
67​ labelOptions.text = text();
68​ labelOptions.icon = icon();
69​ labelOptions.toolButtonStyle = Qt::ToolButtonTextBesideIcon;
70​ labelOptions.iconSize = iconSize();
71​ labelOptions.state.setFlag(QStyle::State_Sunken, isDown());
72​ painter.setOpacity(1);
73​ painter.drawControl(QStyle::CE_ToolButtonLabel, labelOptions);
74​}