plasma-framework/declarativeimports/plasmacomponents/qml/ToolButton.qml

185 lines
5.2 KiB
QML

/*
* Copyright (C) 2011 by Daker Fernandes Pinheiro <dakerfp@gmail.com>
* Copyright (C) 2011 by Marco Martin <mart@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, 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 Library General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import QtQuick 1.1
import org.kde.plasma.core 0.1 as PlasmaCore
Item {
id: button
// Commmon API
property bool flat: true
property bool checked: false
property bool checkable: false
property alias pressed: mouse.pressed
property alias text: label.text
property alias iconSource: icon.source
property alias font: label.font
signal clicked()
onFlatChanged: {
surface.opacity = 1
}
implicitWidth: Math.max(50, icon.width + label.paintedWidth + surface.margins.left + surface.margins.right)
implicitHeight: Math.max(20, Math.max(icon.height, label.paintedHeight) + surface.margins.top + surface.margins.bottom)
// TODO: needs to define if there will be specific graphics for
// disabled buttons
opacity: enabled ? 1.0 : 0.5
Keys.onSpacePressed: internal.pressButton()
Keys.onReturnPressed: internal.pressButton()
Keys.onReleased: {
if (event.key == Qt.Key_Space ||
event.key == Qt.Key_Return)
internal.releaseButton()
}
onActiveFocusChanged: {
if (activeFocus) {
shadow.state = "focus"
} else if (checked) {
shadow.state = "hidden"
} else {
shadow.state = "shadow"
}
}
QtObject {
id: internal
property bool userPressed: false
function pressButton()
{
userPressed = true
}
function releaseButton()
{
userPressed = false
if (!button.enabled) {
return
}
if (button.checkable) {
button.checked = !button.checked
}
button.clicked()
button.forceActiveFocus()
}
}
ButtonShadow {
id: shadow
anchors.fill: parent
visible: !flat
}
PlasmaCore.FrameSvgItem {
id: surface
anchors.fill: parent
imagePath: "widgets/button"
prefix: (internal.userPressed || checked) ? "pressed" : "normal"
//internal: if there is no hover status, don't paint on mouse over in touchscreens
opacity: (internal.userPressed || checked || !flat || (shadow.hasOverState && mouse.containsMouse)) ? 1 : 0
Behavior on opacity {
PropertyAnimation { duration: 250 }
}
}
Item {
anchors {
fill: parent
leftMargin: surface.margins.left
topMargin: surface.margins.top
rightMargin: surface.margins.right
bottomMargin: surface.margins.bottom
}
IconLoader {
id: icon
anchors {
verticalCenter: parent.verticalCenter
left: label.text ? parent.left : undefined
horizontalCenter: label.text ? undefined : parent.horizontalCenter
}
}
Text {
id: label
anchors {
top: parent.top
bottom: parent.bottom
left: icon.valid ? icon.right : parent.left
right: parent.right
}
font.capitalization: theme.defaultFont.capitalization
font.family: theme.defaultFont.family
font.italic: theme.defaultFont.italic
font.letterSpacing: theme.defaultFont.letterSpacing
font.pointSize: theme.defaultFont.pointSize
font.strikeout: theme.defaultFont.strikeout
font.underline: theme.defaultFont.underline
font.weight: theme.defaultFont.weight
font.wordSpacing: theme.defaultFont.wordSpacing
color: theme.buttonTextColor
horizontalAlignment: Text.AlignHCenter
verticalAlignment: Text.AlignVCenter
}
}
MouseArea {
id: mouse
anchors.fill: parent
hoverEnabled: true
onPressed: internal.pressButton();
onReleased: internal.releaseButton();
onEntered: {
if (!flat) {
shadow.state = "hover"
}
}
onExited: {
if (!flat) {
if (button.activeFocus) {
shadow.state = "focus"
} else if (checked) {
shadow.state = "hidden"
} else {
shadow.state = "shadow"
}
}
}
}
}