1 /*
2 * Copyright (C) 2009, 2010 Nicolas Bonnefon and other contributors
3 *
4 * This file is part of glogg.
5 *
6 * glogg is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * glogg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with glogg. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "log.h"
21
22 #include "infoline.h"
23
24 #include <QPainter>
25
26 // This file implements InfoLine. It is responsible for decorating the
27 // widget and managing the completion gauge.
28
InfoLine()29 InfoLine::InfoLine() :
30 QLabel(), origPalette_( palette() ),
31 backgroundColor_( origPalette_.color( QPalette::Button ) ),
32 darkBackgroundColor_( origPalette_.color( QPalette::Dark ) )
33 {
34 setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed );
35 }
36
displayGauge(int completion)37 void InfoLine::displayGauge( int completion )
38 {
39 int changeoverX = width() * completion / 100;
40
41 // Create a gradient for the progress bar
42 QLinearGradient linearGrad( changeoverX - 1, 0, changeoverX + 1, 0 );
43 linearGrad.setColorAt( 0, darkBackgroundColor_ );
44 linearGrad.setColorAt( 1, backgroundColor_ );
45
46 // Apply the gradient to the current palette (background)
47 QPalette newPalette = origPalette_;
48 newPalette.setBrush( backgroundRole(), QBrush( linearGrad ) );
49 setPalette( newPalette );
50 }
51
hideGauge()52 void InfoLine::hideGauge()
53 {
54 setPalette( origPalette_ );
55 }
56
57 // Custom painter: draw the background then call QLabel's painter
paintEvent(QPaintEvent * paintEvent)58 void InfoLine::paintEvent( QPaintEvent* paintEvent )
59 {
60 // Fill the widget background
61 {
62 QPainter painter( this );
63 painter.fillRect( 0, 0, this->width(), this->height(),
64 palette().brush( backgroundRole() ) );
65 }
66
67 // Call the parent's painter
68 QLabel::paintEvent( paintEvent );
69 }
70