Play around with devicePixelRatio

This shows how the UI can react when used with different
devicePixelRatios.
This commit is contained in:
Sebastian Kügler 2014-01-23 04:07:05 +01:00
parent e346c751ec
commit 2a3a546f80
4 changed files with 171 additions and 5 deletions

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/*
* Copyright 2014 Sebastian Kügler <sebas@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 2.010-1301, USA.
*/
import QtQuick 2.1
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 2.0 as PlasmaComponents
import org.kde.plasma.extras 2.0 as PlasmaExtras
import org.kde.qtextracomponents 2.0 as QtExtras
// IconTab
Item {
property int cheight: 48
property int cwidth: themePage.width / 1.2
property int _m: units.gridUnit / 2 * units.devicePixelRatio
id: themePage
// anchors {
// }
Column {
id: col
spacing: _m
anchors {
margins: _m
top: parent.top
left: parent.left
right: parent.right
}
PlasmaExtras.Title {
width: parent.width
elide: Text.ElideRight
text: "Scaling Test"
font.pointSize: cheatLabel.font.pointSize * 2
}
Row {
PlasmaComponents.Button {
text: "devicePixelRatio"
font.pointSize: cheatLabel.font.pointSize
width: cwidth/2
//scale: units.devicePixelRatio
onClicked: {
var d = units.devicePixelRatio * 96;
dpilabel.text = "\tdpi from ratio:" + d;
}
}
PlasmaComponents.Label {
id: dpilabel
}
}
Row {
}
}
PlasmaComponents.Label {
id: cheatLabel
text: "Cheating with the font size. This label scales with the devicePixelRatio <b>on top of</b> font rendering. Just to show how text scaling can work dynamically."
font.pointSize: theme.defaultFont.pointSize * units.devicePixelRatio / 1.8
wrapMode: Text.WordWrap
anchors {
margins: _m
top: col.bottom
left: parent.left
right: apeImage.left
}
}
Image {
id: apeImage
objectName: "apeImage"
height: parent.height / 6 * units.devicePixelRatio
//width: height
anchors {
top: cheatLabel.top
right: parent.right
rightMargin: _m
}
fillMode: Image.PreserveAspectFit
source: "../images/orangutan.jpg"
}
}

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@ -19,7 +19,7 @@
import QtQuick 2.1
import org.kde.plasma.core 2.0 as PlasmaCore
// import org.kde.plasma.components 2.0 as PlasmaComponents
import org.kde.plasma.components 2.0 as PlasmaComponents
// import org.kde.plasma.extras 2.0 as PlasmaExtras
// import org.kde.qtextracomponents 2.0 as QtExtras
@ -32,13 +32,76 @@ Item {
property int minimumHeight: units.gridUnit * 10
property int _s: units.iconSizes.small
property int _h: units.iconSizes.desktop
property int _h: units.iconSizes.default
ThemePage {
id: themePage
anchors.fill: parent
PlasmaComponents.TabBar {
id: tabBar
anchors {
left: parent.left
right: parent.right
top: parent.top
margins: _m
}
height: _h
PlasmaComponents.TabButton { tab: scalePage; text: i18n("Scaling"); iconSource: "preferences-system-windows"}
PlasmaComponents.TabButton { tab: unitsPage; text: i18n("Units"); iconSource: "preferences-desktop-appearance"}
}
PlasmaComponents.TabGroup {
id: tabGroup
anchors {
left: parent.left
right: parent.right
top: tabBar.bottom
bottom: dprSlider.top
}
ScalePage {
id: scalePage
}
UnitsPage {
id: unitsPage
}
}
PlasmaComponents.Label {
id: sliderLabel
anchors {
bottom: parent.bottom
left: parent.left
}
width: theme.mSize(theme.defaultFont).width * 5
text: "dpi: " + dprSlider.value
}
PlasmaComponents.Slider {
id: dprSlider
anchors {
bottom: parent.bottom
left: sliderLabel.right
right: parent.right
}
minimumValue: 0
maximumValue: 400
stepSize: 20
focus: true
onValueChanged: {
var r = value / 96;
print("Setting units.devicePixelRatio: " + r);
units.devicePixelRatio = r;
if (value == 0) {
value = units.devicePixelRatio;
}
}
Component.onCompleted: dprSlider.value = units.devicePixelRatio * 96
}
Component.onCompleted: {
print("Components Test Applet loaded");
}