1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/******************************************************************************
*
* Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* Contact: Nokia Corporation (qt-info@nokia.com)
*
* $QT_BEGIN_LICENSE:BSD$
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the author organization nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $QT_END_LICENSE$
*
*****************************************************************************/
import QtQuick 1.0
import "adjustbars.js" as AdjustBars
/* A barchart-like adjuster component. */
Rectangle {
id: adjuster
property real max: 100
property real value: 0
property bool created: false
signal valueChanged(real value)
signal focusChangedByClick()
signal arrowPressedWhenValueOverLimits()
function setValue(pValue) {
value = pValue;
AdjustBars.fillBars(value/max*AdjustBars.maxBars);
valueChanged(value);
}
height: 60; width: 300
color: "transparent"
Keys.onRightPressed: {
var val = value+max/AdjustBars.maxBars;
if (val <= max) {
value = val;
AdjustBars.fillBars(value/max*AdjustBars.maxBars);
valueChanged(value);
}
else {
arrowPressedWhenValueOverLimits()
}
}
Keys.onLeftPressed: {
var val = value-max/AdjustBars.maxBars;
if (0 <= val) {
value = val;
AdjustBars.fillBars(value/max*AdjustBars.maxBars);
valueChanged(value);
}
else {
arrowPressedWhenValueOverLimits()
}
}
Component.onCompleted: {
AdjustBars.createBars();
AdjustBars.fillBars(value/max*AdjustBars.maxBars);
created = true;
}
Component.onDestruction: {
AdjustBars.destroyBars;
}
//Dynamic objects have to be recreated when the window size changes.
onWidthChanged: {
if (created) {
AdjustBars.destroyBars();
AdjustBars.createBars();
AdjustBars.fillBars(value/max*AdjustBars.maxBars);
}
}
onHeightChanged: {
if (created) {
AdjustBars.destroyBars();
AdjustBars.createBars();
AdjustBars.fillBars(value/max*AdjustBars.maxBars);
}
}
MouseArea {
anchors.fill: parent
onPositionChanged: {
focusChangedByClick();
var val = mouse.x/parent.width*parent.max;
if (0 < val && val < max) {
parent.value = val;
AdjustBars.fillBars(parent.value/parent.max*AdjustBars.maxBars);
valueChanged(parent.value);
}
}
onClicked: {
focusChangedByClick();
var val = mouse.x/parent.width*parent.max;
if (0 < val && val < max) {
parent.value = val;
AdjustBars.fillBars(parent.value/parent.max*AdjustBars.maxBars);
valueChanged(parent.value);
}
}
}
}
|
