-rw-r--r-- | libqtaux/ocolorbutton.cpp | 150 |
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diff --git a/libqtaux/ocolorbutton.cpp b/libqtaux/ocolorbutton.cpp new file mode 100644 index 0000000..d2ad873 --- a/dev/null +++ b/libqtaux/ocolorbutton.cpp | |||
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1 | /* | ||
2 | This file is part of the Opie Project | ||
3 | Copyright (C) Robert Griebl <sandman@handhelds.org> | ||
4 | =. Copyright (C) The Opie Team <opie-devel@handhelds.org> | ||
5 | .=l. | ||
6 | .>+-= | ||
7 | _;:, .> :=|. This program is free software; you can | ||
8 | .> <`_, > . <= redistribute it and/or modify it under | ||
9 | :`=1 )Y*s>-.-- : the terms of the GNU Library General Public | ||
10 | .="- .-=="i, .._ License as published by the Free Software | ||
11 | - . .-<_> .<> Foundation; either version 2 of the License, | ||
12 | ._= =} : or (at your option) any later version. | ||
13 | .%`+i> _;_. | ||
14 | .i_,=:_. -<s. This program is distributed in the hope that | ||
15 | + . -:. = it will be useful, but WITHOUT ANY WARRANTY; | ||
16 | : .. .:, . . . without even the implied warranty of | ||
17 | =_ + =;=|` MERCHANTABILITY or FITNESS FOR A | ||
18 | _.=:. : :=>`: PARTICULAR PURPOSE. See the GNU | ||
19 | ..}^=.= = ; Library General Public License for more | ||
20 | ++= -. .` .: details. | ||
21 | : = ...= . :.=- | ||
22 | -. .:....=;==+<; You should have received a copy of the GNU | ||
23 | -_. . . )=. = Library General Public License along with | ||
24 | -- :-=` this library; see the file COPYING.LIB. | ||
25 | If not, write to the Free Software Foundation, | ||
26 | Inc., 59 Temple Place - Suite 330, | ||
27 | Boston, MA 02111-1307, USA. | ||
28 | */ | ||
29 | |||
30 | #include "ocolorpopupmenu.h" | ||
31 | #include "ocolorbutton.h" | ||
32 | |||
33 | /* OPIE */ | ||
34 | #include <qpe/resource.h> | ||
35 | |||
36 | /* QT */ | ||
37 | #include <qcolor.h> | ||
38 | #include <qpixmap.h> | ||
39 | #include <qimage.h> | ||
40 | |||
41 | using namespace Opie; | ||
42 | |||
43 | struct OColorButtonPrivate | ||
44 | { | ||
45 | QPopupMenu *m_menu; | ||
46 | QColor m_color; | ||
47 | }; | ||
48 | |||
49 | /** | ||
50 | * This concstructs a Color Button with @param color as the start color | ||
51 | * It'll use a OColorPopupMenu internally | ||
52 | * | ||
53 | * @param parent The parent of the Color Button | ||
54 | * @param color The color from where to start on | ||
55 | * @param name @see QObject | ||
56 | */ | ||
57 | OColorButton::OColorButton ( QWidget *parent, const QColor &color, const char *name ) | ||
58 | : QPushButton ( parent, name ) | ||
59 | { | ||
60 | d = new OColorButtonPrivate; | ||
61 | |||
62 | d-> m_menu = new OColorPopupMenu ( color, 0, 0 ); | ||
63 | setPopup ( d-> m_menu ); | ||
64 | //setPopupDelay ( 0 ); | ||
65 | connect ( d-> m_menu, SIGNAL( colorSelected ( const QColor & )), this, SLOT( updateColor ( const QColor & ))); | ||
66 | |||
67 | updateColor ( color ); | ||
68 | |||
69 | QSize s = sizeHint ( ) + QSize ( 12, 0 ); | ||
70 | setMinimumSize ( s ); | ||
71 | setMaximumSize ( s. width ( ) * 2, s. height ( )); | ||
72 | } | ||
73 | |||
74 | /** | ||
75 | * This destructs the object | ||
76 | */ | ||
77 | OColorButton::~OColorButton ( ) | ||
78 | { | ||
79 | delete d; | ||
80 | } | ||
81 | |||
82 | /** | ||
83 | * @return Returns the current color of the button | ||
84 | */ | ||
85 | QColor OColorButton::color ( ) const | ||
86 | { | ||
87 | return d-> m_color; | ||
88 | } | ||
89 | |||
90 | /** | ||
91 | * This method sets the color of the button | ||
92 | * @param c The color to be set. | ||
93 | */ | ||
94 | void OColorButton::setColor ( const QColor &c ) | ||
95 | { | ||
96 | updateColor ( c ); | ||
97 | } | ||
98 | |||
99 | /** | ||
100 | * @internal | ||
101 | */ | ||
102 | void OColorButton::updateColor ( const QColor &c ) | ||
103 | { | ||
104 | d-> m_color = c; | ||
105 | |||
106 | QImage img ( 16, 16, 32 ); | ||
107 | img. fill ( 0 ); | ||
108 | |||
109 | int r, g, b; | ||
110 | c. rgb ( &r, &g, &b ); | ||
111 | |||
112 | int w = img. width ( ); | ||
113 | int h = img. height ( ); | ||
114 | |||
115 | int dx = w * 20 / 100; // 15% | ||
116 | int dy = h * 20 / 100; | ||
117 | |||
118 | for ( int y = 0; y < h; y++ ) | ||
119 | { | ||
120 | for ( int x = 0; x < w; x++ ) | ||
121 | { | ||
122 | double alpha = 1.0; | ||
123 | |||
124 | if ( x < dx ) | ||
125 | alpha *= ( double ( x + 1 ) / dx ); | ||
126 | else if ( x >= w - dx ) | ||
127 | alpha *= ( double ( w - x ) / dx ); | ||
128 | if ( y < dy ) | ||
129 | alpha *= ( double ( y + 1 ) / dy ); | ||
130 | else if ( y >= h - dy ) | ||
131 | alpha *= ( double ( h - y ) / dy ); | ||
132 | |||
133 | int a = int ( alpha * 255.0 ); | ||
134 | if ( a < 0 ) | ||
135 | a = 0; | ||
136 | if ( a > 255 ) | ||
137 | a = 255; | ||
138 | |||
139 | img. setPixel ( x, y, qRgba ( r, g, b, a )); | ||
140 | } | ||
141 | } | ||
142 | img. setAlphaBuffer ( true ); | ||
143 | |||
144 | QPixmap pix; | ||
145 | pix. convertFromImage ( img ); | ||
146 | setPixmap ( pix ); | ||
147 | |||
148 | emit colorSelected ( c ); | ||
149 | } | ||
150 | |||