1Prima::Dialog::ColorDiaUlsoegr(3C)ontributed Perl DocumePnrtiamtai:o:nDialog::ColorDialog(3)
2
3
4

NAME

6       Prima::Dialog::ColorDialog - standard color selection facilities
7

SYNOPSIS

9               use Prima qw(Dialog::ColorDialog Application);
10
11               my $p = Prima::Dialog::ColorDialog-> create(
12                       quality => 1,
13               );
14               printf "color: %06x", $p-> value if $p-> execute == mb::OK;
15

DESCRIPTION

17       The module contains two packages, "Prima::Dialog::ColorDialog" and
18       "Prima::ColorComboBox", used as standard tools for interactive color
19       selection. "Prima::ColorComboBox" is a modified combo widget, which
20       provides selecting from predefined palette but also can invoke
21       "Prima::Dialog::ColorDialog" window.
22

Prima::Dialog::ColorDialog

24   Properties
25       quality BOOLEAN
26           Used to increase visual quality of the dialog if run on paletted
27           displays.
28
29           Default value: 0
30
31       value COLOR
32           Selects the color, represented by the color wheel and other dialog
33           controls.
34
35           Default value: "cl::White"
36
37   Methods
38       hsv2rgb HUE, SATURATION, LUMINOSITY
39           Converts color from HSV to RGB format and returns three integer
40           values, red, green, and blue components.
41
42       rgb2hsv RED, GREEN, BLUE
43           Converts color from RGB to HSV format and returns three numerical
44           values, hue, saturation, and luminosity components.
45
46       xy2hs X, Y, RADIUS
47           Maps X and Y coordinate values onto a color wheel with RADIUS in
48           pixels.  The code uses RADIUS = 119 for mouse position coordinate
49           mapping.  Returns three values, - hue, saturation and error flag.
50           If error flag is set, the conversion has failed.
51
52       hs2xy HUE, SATURATION
53           Maps hue and saturation onto 256-pixel wide color wheel, and
54           returns X and Y coordinates of the corresponding point.
55
56       create_wheel SHADES, BACK_COLOR
57           Creates a color wheel with number of SHADES given, drawn on a
58           BACK_COLOR background, and returns a "Prima::DeviceBitmap" object.
59
60       create_wheel_shape SHADES
61           Creates a circular 1-bit mask, with radius derived from SHAPES.
62           SHAPES must be same as passed to create_wheel.  Returns
63           "Prima::Image" object.
64
65   Events
66       BeginDragColor $PROPERTY
67           Called when the user starts dragginh a color from the color wheel
68           by with left mouse button and combination of Alt, Ctrl, and Shift
69           keys. $PROPERTY is one of "Prima::Widget" color properties, and
70           depends on combination of keys:
71
72                   Alt              backColor
73                   Ctrl             color
74                   Alt+Shift        hiliteBackColor
75                   Ctrl+Shift       hiliteColor
76                   Ctrl+Alt         disabledColor
77                   Ctrl+Alt+Shift   disabledBackColor
78
79           Default action reflects the property to be changes in the dialog
80           title
81
82       Change
83           The notification is called when the value property is changed,
84           either interactively or as a result of direct call.
85
86       EndDragColor $PROPERTY, $WIDGET
87           Called when the user releases the mouse drag over a Prima widget.
88           Default action sets "$WIDGET->$PROPERTY" to the current color
89           value.
90
91   Variables
92       $colorWheel
93           Contains cached result of create_wheel call.
94
95       $colorWheelShape
96           Contains cached result of create_wheel_shape call.
97

Prima::ColorComboBox

99   Events
100       Colorify INDEX, COLOR_PTR
101           "nt::Action" callback, designed to map combo palette index into a
102           RGB color.  INDEX is an integer from 0 to colors - 1, COLOR_PTR is
103           a reference to a result scalar, where the notification is expected
104           to write the resulting color.
105
106   Properties
107       colors INTEGER
108           Defines amount of colors in the fixed palette of the combo box.
109
110       value COLOR
111           Contains the color selection as 24-bit integer value.
112

SEE ALSO

114       Prima, Prima::ComboBox, examples/cv.pl.
115

AUTHOR

117       Dmitry Karasik, <dmitry@karasik.eu.org>.
118
119
120
121perl v5.36.0                      2022-07-22     Prima::Dialog::ColorDialog(3)
Impressum