/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/Styles/Base/GaugeStyle.qml is in qml-module-qtquick-controls 5.5.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 | /****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Extras module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.2
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4
import QtQuick.Controls.Private 1.0
import QtQuick.Extras 1.4
import QtQuick.Extras.Private 1.0
/*!
\qmltype GaugeStyle
\inqmlmodule QtQuick.Controls.Styles
\since 5.5
\ingroup controlsstyling
\brief Provides custom styling for Gauge.
You can create a custom gauge by replacing the following delegates:
\list
\li \l background
\li valueBar
\li tickmarkLabel
\endlist
Below, you'll find an example of how to create a temperature gauge that
changes color as its value increases:
\code
import QtQuick 2.2
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4
import QtQuick.Extras 1.4
Rectangle {
width: 80
height: 200
Timer {
running: true
repeat: true
interval: 2000
onTriggered: gauge.value = gauge.value == gauge.maximumValue ? 5 : gauge.maximumValue
}
Gauge {
id: gauge
anchors.fill: parent
anchors.margins: 10
value: 5
Behavior on value {
NumberAnimation {
duration: 1000
}
}
style: GaugeStyle {
valueBar: Rectangle {
implicitWidth: 16
color: Qt.rgba(gauge.value / gauge.maximumValue, 0, 1 - gauge.value / gauge.maximumValue, 1)
}
}
}
}
\endcode
\image gauge-temperature.png
The gauge displaying values at various points during the animation.
\sa {Styling Gauge}
*/
Style {
id: gaugeStyle
/*!
The \l Gauge that this style is attached to.
*/
readonly property Gauge control: __control
/*!
This property holds the value displayed by the gauge as a position in
pixels.
It is useful for custom styling.
*/
readonly property real valuePosition: control.__panel.valuePosition
/*!
The background of the gauge, displayed behind the \l valueBar.
By default, no background is defined.
*/
property Component background
/*!
Each tickmark displayed by the gauge.
To set the size of the tickmarks, specify an
\l {Item::implicitWidth}{implicitWidth} and
\l {Item::implicitHeight}{implicitHeight}.
The widest tickmark will determine the space set aside for all
tickmarks. For this reason, the \c implicitWidth of each tickmark
should be greater than or equal to that of each minor tickmark. If you
need minor tickmarks to have greater widths than the major tickmarks,
set the larger width in a child item of the \l minorTickmark component.
For layouting reasons, each tickmark should have the same
\c implicitHeight. If different heights are needed for individual
tickmarks, specify those heights in a child item of the component.
In the example below, we decrease the height of the tickmarks:
\code
tickmark: Item {
implicitWidth: 18
implicitHeight: 1
Rectangle {
color: "#c8c8c8"
anchors.fill: parent
anchors.leftMargin: 3
anchors.rightMargin: 3
}
}
\endcode
\image gauge-tickmark-example.png Gauge tickmark example
Each instance of this component has access to the following properties:
\table
\row \li \c {readonly property int} \b styleData.index
\li The index of this tickmark.
\row \li \c {readonly property real} \b styleData.value
\li The value that this tickmark represents.
\row \li \c {readonly property real} \b styleData.valuePosition
\li The value that this tickmark represents as a position in
pixels, with 0 being at the bottom of the gauge.
\endtable
\sa minorTickmark
*/
property Component tickmark: Item {
implicitWidth: Math.round(TextSingleton.height * 1.1)
implicitHeight: Math.max(2, Math.round(TextSingleton.height * 0.1))
Rectangle {
color: "#c8c8c8"
anchors.fill: parent
anchors.leftMargin: Math.round(TextSingleton.implicitHeight * 0.2)
anchors.rightMargin: Math.round(TextSingleton.implicitHeight * 0.2)
}
}
/*!
Each minor tickmark displayed by the gauge.
To set the size of the minor tickmarks, specify an
\l {Item::implicitWidth}{implicitWidth} and
\l {Item::implicitHeight}{implicitHeight}.
For layouting reasons, each minor tickmark should have the same
\c implicitHeight. If different heights are needed for individual
tickmarks, specify those heights in a child item of the component.
In the example below, we decrease the width of the minor tickmarks:
\code
minorTickmark: Item {
implicitWidth: 8
implicitHeight: 1
Rectangle {
color: "#cccccc"
anchors.fill: parent
anchors.leftMargin: 2
anchors.rightMargin: 4
}
}
\endcode
\image gauge-minorTickmark-example.png Gauge minorTickmark example
Each instance of this component has access to the following property:
\table
\row \li \c {readonly property int} \b styleData.index
\li The index of this minor tickmark.
\row \li \c {readonly property real} \b styleData.value
\li The value that this minor tickmark represents.
\row \li \c {readonly property real} \b styleData.valuePosition
\li The value that this minor tickmark represents as a
position in pixels, with 0 being at the bottom of the
gauge.
\endtable
\sa tickmark
*/
property Component minorTickmark: Item {
implicitWidth: Math.round(TextSingleton.implicitHeight * 0.65)
implicitHeight: Math.max(1, Math.round(TextSingleton.implicitHeight * 0.05))
Rectangle {
color: "#c8c8c8"
anchors.fill: parent
anchors.leftMargin: control.__tickmarkAlignment === Qt.AlignBottom || control.__tickmarkAlignment === Qt.AlignRight
? Math.max(3, Math.round(TextSingleton.implicitHeight * 0.2))
: 0
anchors.rightMargin: control.__tickmarkAlignment === Qt.AlignBottom || control.__tickmarkAlignment === Qt.AlignRight
? 0
: Math.max(3, Math.round(TextSingleton.implicitHeight * 0.2))
}
}
/*!
This defines the text of each tickmark label on the gauge.
Each instance of this component has access to the following properties:
\table
\row \li \c {readonly property int} \b styleData.index
\li The index of this label.
\row \li \c {readonly property real} \b styleData.value
\li The value that this label represents.
\endtable
*/
property Component tickmarkLabel: Text {
text: control.formatValue(styleData.value)
font: control.font
color: "#c8c8c8"
antialiasing: true
}
/*!
The bar that represents the value of the gauge.
To height of the value bar is automatically resized according to
\l {Gauge::value}{value}, and does not need to be specified.
When a custom valueBar is defined, its
\l {Item::implicitWidth}{implicitWidth} property must be set.
*/
property Component valueBar: Rectangle {
color: "#00bbff"
implicitWidth: TextSingleton.implicitHeight
}
/*!
The bar that represents the foreground of the gauge.
This component is drawn above every other component.
*/
property Component foreground: Canvas {
readonly property real xCenter: width / 2
readonly property real yCenter: height / 2
property real shineLength: height * 0.95
onPaint: {
var ctx = getContext("2d");
ctx.reset();
ctx.beginPath();
ctx.rect(0, 0, width, height);
var gradient = ctx.createLinearGradient(0, yCenter, width, yCenter);
gradient.addColorStop(0, Qt.rgba(1, 1, 1, 0.08));
gradient.addColorStop(1, Qt.rgba(1, 1, 1, 0.20));
ctx.fillStyle = gradient;
ctx.fill();
}
}
/*! \internal */
property Component panel: Item {
id: panelComponent
implicitWidth: control.orientation === Qt.Vertical ? tickmarkLabelBoundsWidth + rawBarWidth : TextSingleton.height * 14
implicitHeight: control.orientation === Qt.Vertical ? TextSingleton.height * 14 : tickmarkLabelBoundsWidth + rawBarWidth
readonly property int tickmarkCount: (control.maximumValue - control.minimumValue) / control.tickmarkStepSize + 1
readonly property real tickmarkSpacing: (tickmarkLabelBounds.height - tickmarkWidth * tickmarkCount) / (tickmarkCount - 1)
property real tickmarkLength: tickmarkColumn.width
// Can't deduce this from the column, so we set it from within the first tickmark delegate loader.
property real tickmarkWidth: 2
readonly property real tickmarkOffset: control.orientation === Qt.Vertical ? control.__hiddenText.height / 2 : control.__hiddenText.width / 2
readonly property real minorTickmarkStep: control.tickmarkStepSize / (control.minorTickmarkCount + 1);
/*!
Returns the marker text that should be displayed based on
\a markerPos (\c 0 to \c 1.0).
*/
function markerTextFromPos(markerPos) {
return markerPos * (control.maximumValue - control.minimumValue) + control.minimumValue;
}
readonly property real rawBarWidth: valueBarLoader.item.implicitWidth
readonly property real barLength: (control.orientation === Qt.Vertical ? control.height : control.width) - (tickmarkOffset * 2 - 2)
readonly property real tickmarkLabelBoundsWidth: tickmarkLength + (control.orientation === Qt.Vertical ? control.__hiddenText.width : control.__hiddenText.height)
readonly property int valuePosition: valueBarLoader.height
Item {
id: container
width: control.orientation === Qt.Vertical ? parent.width : parent.height
height: control.orientation === Qt.Vertical ? parent.height : parent.width
rotation: control.orientation === Qt.Horizontal ? 90 : 0
transformOrigin: Item.Center
anchors.centerIn: parent
Item {
id: valueBarItem
x: control.__tickmarkAlignment === Qt.AlignLeft || control.__tickmarkAlignment === Qt.AlignTop ? tickmarkLabelBounds.x + tickmarkLabelBounds.width : 0
width: rawBarWidth
height: barLength
anchors.verticalCenter: parent.verticalCenter
Loader {
id: backgroundLoader
sourceComponent: background
anchors.fill: parent
}
Loader {
id: valueBarLoader
sourceComponent: valueBar
readonly property real valueAsPercentage: (control.value - control.minimumValue) / (control.maximumValue - control.minimumValue)
y: Math.round(parent.height - height)
height: Math.round(valueAsPercentage * parent.height)
}
}
Item {
id: tickmarkLabelBounds
x: control.__tickmarkAlignment === Qt.AlignLeft || control.__tickmarkAlignment === Qt.AlignTop ? 0 : valueBarItem.width
width: tickmarkLabelBoundsWidth
height: barLength
anchors.verticalCenter: parent.verticalCenter
// We want our items to be laid out from bottom to top, but Column can't do that, so we flip
// the whole item containing the tickmarks and labels vertically. Then, we flip each tickmark
// and label back again.
transform: Rotation {
axis.x: 1
axis.y: 0
axis.z: 0
origin.x: tickmarkLabelBounds.width / 2
origin.y: tickmarkLabelBounds.height / 2
angle: 180
}
Column {
id: tickmarkColumn
x: control.__tickmarkAlignment === Qt.AlignRight || control.__tickmarkAlignment === Qt.AlignBottom ? 0 : tickmarkLabelBounds.width - width
spacing: tickmarkSpacing
anchors.verticalCenter: parent.verticalCenter
Repeater {
id: tickmarkRepeater
model: tickmarkCount
delegate: Loader {
id: tickmarkDelegateLoader
sourceComponent: gaugeStyle.tickmark
transform: Rotation {
axis.x: 1
axis.y: 0
axis.z: 0
origin.x: tickmarkDelegateLoader.width / 2
origin.y: tickmarkDelegateLoader.height / 2
angle: 180
}
onHeightChanged: {
if (index == 0)
tickmarkWidth = height;
}
readonly property int __index: index
property QtObject styleData: QtObject {
readonly property alias index: tickmarkDelegateLoader.__index
readonly property real value: (index / (tickmarkCount - 1)) * (control.maximumValue - control.minimumValue) + control.minimumValue
readonly property int valuePosition: Math.round(tickmarkDelegateLoader.y)
}
}
}
}
// Doesn't need to be in a column, since we assume that the major tickmarks will always be longer than us.
Repeater {
id: minorTickmarkRepeater
model: (tickmarkCount - 1) * control.minorTickmarkCount
delegate: Loader {
id: minorTickmarkDelegateLoader
x: control.__tickmarkAlignment === Qt.AlignRight || control.__tickmarkAlignment === Qt.AlignBottom ? 0 : tickmarkLabelBounds.width - width
y: {
var tickmarkWidthOffset = Math.floor(index / control.minorTickmarkCount) * tickmarkWidth + tickmarkWidth;
var relativePosition = (index % control.minorTickmarkCount + 1) * (tickmarkSpacing / (control.minorTickmarkCount + 1));
var clusterOffset = Math.floor(index / control.minorTickmarkCount) * tickmarkSpacing;
// We assume that each minorTickmark's height is the same.
return clusterOffset + tickmarkWidthOffset + relativePosition - height / 2;
}
transform: Rotation {
axis.x: 1
axis.y: 0
axis.z: 0
origin.x: minorTickmarkDelegateLoader.width / 2
origin.y: minorTickmarkDelegateLoader.height / 2
angle: 180
}
sourceComponent: gaugeStyle.minorTickmark
readonly property int __index: index
property QtObject styleData: QtObject {
readonly property alias index: minorTickmarkDelegateLoader.__index
readonly property real value: {
var tickmarkIndex = Math.floor(index / control.minorTickmarkCount);
return index * minorTickmarkStep + minorTickmarkStep * tickmarkIndex + minorTickmarkStep + control.minimumValue;
}
readonly property int valuePosition: Math.round(minorTickmarkDelegateLoader.y)
}
}
}
Item {
id: tickmarkLabelItem
x: control.__tickmarkAlignment === Qt.AlignRight || control.__tickmarkAlignment === Qt.AlignBottom
? tickmarkLength
: tickmarkLabelBounds.width - tickmarkLength - width
width: control.__hiddenText.width
// Use the bar height instead of the container's, as the labels seem to be translated by 1 when we
// flip the control vertically, and this fixes that.
height: parent.height
anchors.verticalCenter: parent.verticalCenter
Repeater {
id: tickmarkTextRepeater
model: tickmarkCount
delegate: Item {
x: {
if (control.orientation === Qt.Vertical)
return 0;
// Align the text to the edge of the tickmarks.
return ((width - height) / 2) * (control.__tickmarkAlignment === Qt.AlignBottom ? -1 : 1);
}
y: index * labelDistance - height / 2
width: control.__hiddenText.width
height: control.__hiddenText.height
transformOrigin: Item.Center
rotation: control.orientation === Qt.Vertical ? 0 : 90
readonly property real labelDistance: tickmarkLabelBounds.height / (tickmarkCount - 1)
Loader {
id: tickmarkTextRepeaterDelegate
x: {
if (control.orientation === Qt.Horizontal) {
return parent.width / 2 - width / 2;
}
return control.__tickmarkAlignment === Qt.AlignRight || control.__tickmarkAlignment === Qt.AlignBottom
? 0
: parent.width - width;
}
transform: Rotation {
axis.x: 1
axis.y: 0
axis.z: 0
origin.x: tickmarkTextRepeaterDelegate.width / 2
origin.y: tickmarkTextRepeaterDelegate.height / 2
angle: 180
}
sourceComponent: tickmarkLabel
readonly property int __index: index
property QtObject styleData: QtObject {
readonly property alias index: tickmarkTextRepeaterDelegate.__index
readonly property real value: markerTextFromPos(index / (tickmarkTextRepeater.count - 1))
}
}
}
}
}
}
Loader {
id: foregroundLoader
sourceComponent: foreground
anchors.fill: valueBarItem
}
}
}
}
|