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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.2
import QtQuick.Controls 1.2
import QtQuick.Controls.Private 1.0
/*!
\qmltype ScrollBar
\internal
\inqmlmodule QtQuick.Controls.Private
*/
Item {
id: scrollbar
property bool isTransient: false
property bool active: false
property int orientation: Qt.Horizontal
property alias minimumValue: slider.minimumValue
property alias maximumValue: slider.maximumValue
property alias value: slider.value
property int singleStep: 20
activeFocusOnTab: false
Accessible.role: Accessible.ScrollBar
implicitWidth: panelLoader.implicitWidth
implicitHeight: panelLoader.implicitHeight
property bool upPressed
property bool downPressed
property bool pageUpPressed
property bool pageDownPressed
property bool handlePressed
property Item __panel: panelLoader.item
Loader {
id: panelLoader
anchors.fill: parent
sourceComponent: __style ? __style.__scrollbar : null
onStatusChanged: if (status === Loader.Error) console.error("Failed to load Style for", root)
property alias __control: scrollbar
property QtObject __styleData: QtObject {
readonly property alias horizontal: internal.horizontal
readonly property alias upPressed: scrollbar.upPressed
readonly property alias downPressed: scrollbar.downPressed
readonly property alias handlePressed: scrollbar.handlePressed
}
}
MouseArea {
id: internal
property bool horizontal: orientation === Qt.Horizontal
property int pageStep: internal.horizontal ? width : height
property bool scrollToClickposition: internal.scrollToClickPosition
anchors.fill: parent
cursorShape: __panel && __panel.visible ? Qt.ArrowCursor : Qt.IBeamCursor // forces a cursor change
property bool autoincrement: false
property bool scrollToClickPosition: __style ? __style.scrollToClickedPosition : 0
// Update hover item
onEntered: if (!pressed) __panel.activeControl = __panel.hitTest(mouseX, mouseY)
onExited: if (!pressed) __panel.activeControl = "none"
onMouseXChanged: if (!pressed) __panel.activeControl = __panel.hitTest(mouseX, mouseY)
hoverEnabled: Settings.hoverEnabled
preventStealing: true
property var pressedX
property var pressedY
property int oldPosition
property int grooveSize
Timer {
running: upPressed || downPressed || pageUpPressed || pageDownPressed
interval: 350
onTriggered: internal.autoincrement = true
}
Timer {
running: internal.autoincrement
interval: 60
repeat: true
onTriggered: {
if (upPressed && internal.containsMouse)
internal.decrement();
else if (downPressed && internal.containsMouse)
internal.increment();
else if (pageUpPressed)
internal.decrementPage();
else if (pageDownPressed)
internal.incrementPage();
}
}
onPositionChanged: {
if (handlePressed) {
if (!horizontal)
slider.position = oldPosition + (mouseY - pressedY)
else
slider.position = oldPosition + (mouseX - pressedX)
}
}
onPressed: {
if (mouse.source !== Qt.MouseEventNotSynthesized) {
mouse.accepted = false
return
}
__panel.activeControl = __panel.hitTest(mouseX, mouseY)
scrollToClickposition = scrollToClickPosition
var handleRect = __panel.subControlRect("handle")
var grooveRect = __panel.subControlRect("groove")
grooveSize = horizontal ? grooveRect.width - handleRect.width:
grooveRect.height - handleRect.height;
if (__panel.activeControl === "handle") {
pressedX = mouseX;
pressedY = mouseY;
handlePressed = true;
oldPosition = slider.position;
} else if (__panel.activeControl === "up") {
decrement();
upPressed = Qt.binding(function() {return containsMouse});
} else if (__panel.activeControl === "down") {
increment();
downPressed = Qt.binding(function() {return containsMouse});
} else if (!scrollToClickposition){
if (__panel.activeControl === "upPage") {
decrementPage();
pageUpPressed = true;
} else if (__panel.activeControl === "downPage") {
incrementPage();
pageDownPressed = true;
}
} else { // scroll to click position
slider.position = horizontal ? mouseX - handleRect.width/2 - grooveRect.x
: mouseY - handleRect.height/2 - grooveRect.y
pressedX = mouseX;
pressedY = mouseY;
handlePressed = true;
oldPosition = slider.position;
}
}
onReleased: {
__panel.activeControl = __panel.hitTest(mouseX, mouseY);
autoincrement = false;
upPressed = false;
downPressed = false;
handlePressed = false;
pageUpPressed = false;
pageDownPressed = false;
}
onWheel: {
var stepCount = -(wheel.angleDelta.x ? wheel.angleDelta.x : wheel.angleDelta.y) / 120
if (stepCount != 0) {
if (wheel.modifiers & Qt.ControlModifier || wheel.modifiers & Qt.ShiftModifier)
incrementPage(stepCount)
else
increment(stepCount)
}
}
function incrementPage(stepCount) {
value = boundValue(value + getSteps(pageStep, stepCount))
}
function decrementPage(stepCount) {
value = boundValue(value - getSteps(pageStep, stepCount))
}
function increment(stepCount) {
value = boundValue(value + getSteps(singleStep, stepCount))
}
function decrement(stepCount) {
value = boundValue(value - getSteps(singleStep, stepCount))
}
function boundValue(val) {
return Math.min(Math.max(val, minimumValue), maximumValue)
}
function getSteps(step, count) {
if (count)
step *= count
return step
}
RangeModel {
id: slider
minimumValue: 0.0
maximumValue: 1.0
value: 0
stepSize: 0.0
inverted: false
positionAtMaximum: internal.grooveSize
}
}
}
|
