plasma-framework/declarativeimports/plasmacomponents/qml/TextArea.qml
2011-10-13 18:23:40 +02:00

242 lines
7.2 KiB
QML

/*
* Copyright (C) 2011 by Daker Fernandes Pinheiro <dakerfp@gmail.com>
*
* 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 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: textArea
// Common API
property alias font: textEdit.font // alias to textEdit.font
property int inputMethodHints
property bool errorHighlight
property alias cursorPosition: textEdit.cursorPosition
property alias horizontalAlignment: textEdit.cursorPosition
property alias verticalAlignment: textEdit.cursorPosition
property alias readOnly: textEdit.readOnly
property alias selectedText: textEdit.selectedText // read-only
property alias selectionEnd: textEdit.selectionEnd // read-only
property alias selectionStart: textEdit.selectionStart // read-only
property alias text: textEdit.text
property alias textFormat: textEdit.textFormat // enumeration
property alias wrapMode: textEdit.wrapMode // enumeration
property string placeholderText
// functions
function copy() {
textEdit.copy();
}
function paste() {
textEdit.paste();
}
function cut() {
textEdit.cut();
}
function select(start, end) {
textEdit.select(start, end);
}
function selectAll() {
textEdit.selectAll();
}
function selectWord() {
textEdit.selectWord();
}
function positionAt(pos) {
textEdit.positionAt(pos);
}
function positionToRectangle(pos) {
textEdit.positionToRectangle(pos);
}
// Plasma API
property alias interactive: flickArea.interactive
property alias contentMaxWidth: textEdit.width
property alias contentMaxHeight: textEdit.height
property real scrollWidth: 22
// Set active focus to it's internal textInput.
// Overriding QtQuick.Item forceActiveFocus function.
function forceActiveFocus() {
textEdit.forceActiveFocus();
}
// Overriding QtQuick.Item activeFocus property.
property alias activeFocus: textEdit.activeFocus
opacity: enabled ? 1.0 : 0.5
PlasmaCore.FrameSvgItem {
id: hover
anchors {
fill: base
leftMargin: -margins.left
topMargin: -margins.top
rightMargin: -margins.right
bottomMargin: -margins.bottom
}
imagePath: "widgets/lineedit"
prefix: {
if (textEdit.activeFocus)
return "focus";
else
return "hover";
}
opacity: (mouseWatcher.containsMouse||textArea.activeFocus) ? 1 : 0
Behavior on opacity {
NumberAnimation {
duration: 250
easing.type: Easing.InOutQuad
}
}
}
MouseArea {
id: mouseWatcher
anchors.fill: hover
hoverEnabled: true
}
PlasmaCore.FrameSvgItem {
id: base
// TODO: see what is the best policy for margins
anchors {
fill: flickArea
leftMargin: -2 * base.margins.left
rightMargin: -2 * base.margins.right
topMargin: -2 * base.margins.top
bottomMargin: -2 * base.margins.bottom
}
imagePath: "widgets/lineedit"
prefix: "base"
}
Flickable {
id: flickArea
anchors {
fill: parent
rightMargin: scrollWidth
bottomMargin: scrollWidth
}
interactive: false //textArea.activeFocus
contentWidth: {
if (textEdit.wrapMode == TextEdit.NoWrap)
return textEdit.paintedWidth;
return Math.min(textEdit.paintedWidth, textEdit.width);
}
contentHeight: Math.min(textEdit.paintedHeight, textEdit.height)
clip: true
TextEdit {
id: textEdit
width: flickArea.width
height: flickArea.height
clip: true
wrapMode: TextEdit.Wrap
enabled: textArea.enabled
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.viewTextColor
onCursorPositionChanged: {
if (cursorRectangle.x < flickArea.contentX) {
flickArea.contentX = cursorRectangle.x;
return;
}
if (cursorRectangle.x > flickArea.contentX +
flickArea.width - cursorRectangle.width) {
flickArea.contentX = cursorRectangle.x -
cursorRectangle.width;
return;
}
if (cursorRectangle.y < flickArea.contentY) {
flickArea.contentY = cursorRectangle.y;
return;
}
if (cursorRectangle.y > flickArea.contentY +
flickArea.height - cursorRectangle.height) {
flickArea.contentY = cursorRectangle.y -
cursorRectangle.height;
return;
}
}
// Proxying keys events is not required by the
// common API but is desired in the plasma API.
Keys.onPressed: textArea.Keys.pressed(event);
Keys.onReleased: textArea.Keys.released(event);
Text {
anchors.fill: parent
text: textArea.placeholderText
visible: textEdit.text == "" && !textArea.activeFocus
opacity: 0.5
}
}
}
ScrollBar {
id: horizontalScroll
anchors {
bottom: parent.bottom
left: parent.left
right: flickArea.right
}
enabled: parent.enabled
flickableItem: flickArea
height: visible ? scrollWidth : 0
orientation: Qt.Horizontal
stepSize: textEdit.font.pixelSize
}
ScrollBar {
id: verticalScroll
anchors {
right: parent.right
top: parent.top
bottom: flickArea.bottom
}
enabled: parent.enabled
flickableItem: flickArea
width: visible ? scrollWidth : 0
orientation: Qt.Vertical
stepSize: textEdit.font.pixelSize
}
}