Fixed Emoji image positioning in multiline StyledText
Combination of maximumLineCount and TruncationMode.Elide (or Fade) breaks Emoji image alignment, pushing the image down. Explicitly truncating the text fixes the problem, at expense of certain runtime overhead. Also, toggle full and truncated Web page preview on tap.
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parent
c10819b12e
commit
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4 changed files with 121 additions and 66 deletions
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@ -51,6 +51,7 @@ DISTFILES += qml/harbour-fernschreiber.qml \
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qml/components/MessageListViewItem.qml \
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qml/components/MessageListViewItem.qml \
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qml/components/MessageListViewItemSimple.qml \
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qml/components/MessageListViewItemSimple.qml \
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qml/components/MessageOverlayFlickable.qml \
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qml/components/MessageOverlayFlickable.qml \
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qml/components/MultilineEmojiLabel.qml \
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qml/components/PinnedMessageItem.qml \
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qml/components/PinnedMessageItem.qml \
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qml/components/PollPreview.qml \
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qml/components/PollPreview.qml \
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qml/components/PressEffect.qml \
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qml/components/PressEffect.qml \
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@ -57,6 +57,8 @@ ListItem {
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mouseX < (extraContentLoader.x + extraContentLoader.width) &&
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mouseX < (extraContentLoader.x + extraContentLoader.width) &&
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mouseY < (extraContentLoader.y + extraContentLoader.height)) {
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mouseY < (extraContentLoader.y + extraContentLoader.height)) {
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extraContent.clicked()
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extraContent.clicked()
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} else if (webPagePreviewLoader.item) {
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webPagePreviewLoader.item.clicked()
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}
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}
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}
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}
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}
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}
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@ -397,17 +399,10 @@ ListItem {
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active: false
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active: false
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asynchronous: true
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asynchronous: true
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width: parent.width
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width: parent.width
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height: typeof myMessage.content.web_page !== "undefined" ? precalculatedValues.webPagePreviewHeight : 0
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height: (status === Loader.Ready) ? item.implicitHeight : myMessage.content.web_page ? precalculatedValues.webPagePreviewHeight : 0
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sourceComponent: Component {
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sourceComponent: Component {
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id: webPagePreviewComponent
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WebPagePreview {
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WebPagePreview {
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id: webPagePreview
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onImplicitHeightChanged: {
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webPagePreviewLoader.height = webPagePreview.implicitHeight;
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}
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webPageData: myMessage.content.web_page
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webPageData: myMessage.content.web_page
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width: parent.width
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width: parent.width
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highlighted: messageListItem.highlighted
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highlighted: messageListItem.highlighted
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78
qml/components/MultilineEmojiLabel.qml
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78
qml/components/MultilineEmojiLabel.qml
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@ -0,0 +1,78 @@
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/*
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Copyright (C) 2020 Slava Monich and other contributors
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This file is part of Fernschreiber.
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Fernschreiber is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Fernschreiber is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fernschreiber. If not, see <http://www.gnu.org/licenses/>.
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*/
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import QtQuick 2.0
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import Sailfish.Silica 1.0
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import "../js/twemoji.js" as Emoji
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// Combination of maximumLineCount and TruncationMode.Elide (or Fade) breaks
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// Emoji image alignment, pushing the image down. This one aligns the image
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// correctly on its line.
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Label {
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property string rawText
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property int maxLineCount
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wrapMode: Text.Wrap
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textFormat: Text.StyledText
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truncationMode: TruncationMode.Elide
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// lineCount is unreliable for StyledText with images and line breaks
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readonly property int fontSize: font.pixelSize
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readonly property int actualLineHeight: (text === rawText) ? fontSize : (fontSize * 6 / 5)
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readonly property int actualLineCount: Math.floor(implicitHeight/actualLineHeight)
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Component.onCompleted: refitText()
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onFontSizeChanged: refitText()
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onWidthChanged: refitText()
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onRawTextChanged: refitText()
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onMaxLineCountChanged: refitText()
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function emojify(str) {
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return Emoji.emojify(str, fontSize)
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}
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function refitText() {
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text = emojify(rawText)
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if (maxLineCount > 0) {
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var divisor = 1
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var max = rawText.length
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var min = max
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while (actualLineCount > maxLineCount && divisor < rawText.length) {
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max = min
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divisor++
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min = rawText.length/divisor
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text = emojify(rawText.substr(0, min) + "…")
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}
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while (min < max) {
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var mid = Math.floor((min + max)/2)
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if (mid === min) {
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text = emojify(rawText.substr(0, min) + "…")
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break
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} else {
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text = emojify(rawText.substr(0, mid) + "…")
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if (actualLineCount > maxLineCount) {
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max = mid
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} else {
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min = mid
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}
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}
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}
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}
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}
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}
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@ -19,101 +19,86 @@
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import QtQuick 2.6
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import QtQuick 2.6
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import QtGraphicalEffects 1.0
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import QtGraphicalEffects 1.0
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import Sailfish.Silica 1.0
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import Sailfish.Silica 1.0
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import "../components"
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import WerkWolf.Fernschreiber 1.0
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import "../js/twemoji.js" as Emoji
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import "../js/functions.js" as Functions
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import "../js/functions.js" as Functions
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Column {
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Column {
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id: webPagePreviewColumn
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id: webPagePreviewColumn
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property var webPageData;
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property var webPageData;
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property var pictureFileInformation;
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property bool hasImage: false;
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property bool largerFontSize: false;
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property bool largerFontSize: false;
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property bool highlighted
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property bool highlighted
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readonly property bool hasImage: picture.fileId !== 0
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readonly property int fontSize: largerFontSize ? Theme.fontSizeSmall : Theme.fontSizeExtraSmall
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spacing: Theme.paddingSmall
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spacing: Theme.paddingSmall
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Component.onCompleted: {
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Component.onCompleted: {
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updateWebPage();
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}
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function updateWebPage() {
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if (webPageData) {
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if (webPageData) {
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if (typeof webPageData.photo !== "undefined") {
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if (webPageData.photo) {
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hasImage = true;
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// Check first which size fits best...
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// Check first which size fits best...
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var photo
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for (var i = 0; i < webPageData.photo.sizes.length; i++) {
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for (var i = 0; i < webPageData.photo.sizes.length; i++) {
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pictureFileInformation = webPageData.photo.sizes[i].photo;
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photo = webPageData.photo.sizes[i].photo;
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if (webPageData.photo.sizes[i].width >= webPagePreviewColumn.width) {
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if (webPageData.photo.sizes[i].width >= webPagePreviewColumn.width) {
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break;
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break;
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}
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}
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}
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}
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if (pictureFileInformation.local.is_downloading_completed) {
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if (photo) {
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singleImage.source = pictureFileInformation.local.path;
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picture.fileInformation = photo
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} else {
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tdLibWrapper.downloadFile(pictureFileInformation.id);
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}
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}
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}
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}
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}
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}
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}
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}
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Connections {
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function clicked() {
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target: tdLibWrapper
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descriptionText.toggleMaxLineCount()
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onFileUpdated: {
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if (typeof pictureFileInformation !== "undefined" && fileId === pictureFileInformation.id) {
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if (fileInformation.local.is_downloading_completed) {
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pictureFileInformation = fileInformation;
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singleImage.source = fileInformation.local.path;
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}
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}
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}
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}
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}
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Label {
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TDLibFile {
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id: picture
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tdlib: tdLibWrapper
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autoLoad: true
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}
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MultilineEmojiLabel {
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id: siteNameText
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id: siteNameText
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width: parent.width
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width: parent.width
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text: webPageData.site_name ? Emoji.emojify(webPageData.site_name, font.pixelSize) : ""
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rawText: webPageData.site_name ? webPageData.site_name : ""
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font.pixelSize: webPagePreviewColumn.largerFontSize ? Theme.fontSizeSmall : Theme.fontSizeExtraSmall
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font.pixelSize: webPagePreviewColumn.fontSize
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font.bold: true
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font.bold: true
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color: Theme.secondaryHighlightColor
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color: Theme.secondaryHighlightColor
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truncationMode: TruncationMode.Fade
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visible: (rawText !== "")
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maximumLineCount: 1
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maxLineCount: 1
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textFormat: Text.StyledText
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visible: (text !== "")
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}
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}
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Label {
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MultilineEmojiLabel {
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id: titleText
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id: titleText
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width: parent.width
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width: parent.width
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text: webPageData.title ? Emoji.emojify(webPageData.title, font.pixelSize) : ""
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rawText: webPageData.title ? webPageData.title : ""
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font.pixelSize: webPagePreviewColumn.largerFontSize ? Theme.fontSizeSmall : Theme.fontSizeExtraSmall
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font.pixelSize: webPagePreviewColumn.fontSize
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font.bold: true
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font.bold: true
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truncationMode: TruncationMode.Fade
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visible: (rawText !== "")
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wrapMode: Text.Wrap
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maxLineCount: 2
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maximumLineCount: 2
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textFormat: Text.StyledText
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visible: (text !== "")
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}
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}
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Label {
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MultilineEmojiLabel {
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id: descriptionText
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id: descriptionText
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width: parent.width
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width: parent.width
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text: webPageData.description ? Emoji.emojify(Functions.enhanceMessageText(webPageData.description), font.pixelSize) : ""
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rawText: webPageData.description ? Functions.enhanceMessageText(webPageData.description) : ""
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font.pixelSize: webPagePreviewColumn.largerFontSize ? Theme.fontSizeSmall : Theme.fontSizeExtraSmall
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font.pixelSize: webPagePreviewColumn.fontSize
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truncationMode: TruncationMode.Fade
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visible: (rawText !== "")
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wrapMode: Text.Wrap
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readonly property int defaultMaxLineCount: 3
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maximumLineCount: 3
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maxLineCount: defaultMaxLineCount
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textFormat: Text.StyledText
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visible: (text !== "")
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linkColor: Theme.highlightColor
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onLinkActivated: {
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onLinkActivated: {
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Functions.handleLink(link);
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Functions.handleLink(link);
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}
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}
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function toggleMaxLineCount() {
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maxLineCount = maxLineCount > 0 ? 0 : defaultMaxLineCount
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}
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}
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}
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Item {
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Item {
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@ -133,15 +118,16 @@ Column {
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fillMode: Image.PreserveAspectCrop
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fillMode: Image.PreserveAspectCrop
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autoTransform: true
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autoTransform: true
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asynchronous: true
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asynchronous: true
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visible: hasImage && status === Image.Ready
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source: picture.isDownloadingCompleted ? picture.path : ""
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visible: opacity > 0
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opacity: hasImage && status === Image.Ready ? 1 : 0
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opacity: hasImage && status === Image.Ready ? 1 : 0
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layer.enabled: webPagePreviewColumn.highlighted
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layer.enabled: webPagePreviewColumn.highlighted
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layer.effect: PressEffect { source: singleImage }
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layer.effect: PressEffect { source: singleImage }
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Behavior on opacity { NumberAnimation {} }
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Behavior on opacity { FadeAnimation {} }
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MouseArea {
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MouseArea {
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anchors.fill: parent
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anchors.fill: parent
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onClicked: {
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onClicked: {
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pageStack.push(Qt.resolvedUrl("../pages/ImagePage.qml"), { "photoData" : webPageData.photo, "pictureFileInformation" : pictureFileInformation });
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pageStack.push(Qt.resolvedUrl("../pages/ImagePage.qml"), { "photoData" : webPageData.photo, "pictureFileInformation" : picture.fileInformation });
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}
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}
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}
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}
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}
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}
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@ -154,17 +140,12 @@ Column {
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}
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}
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Label {
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Label {
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id: noPreviewAvailableText
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width: parent.width
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width: parent.width
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text: qsTr("Preview not supported for this link...")
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text: qsTr("Preview not supported for this link...")
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font.pixelSize: webPagePreviewColumn.largerFontSize ? Theme.fontSizeExtraSmall : Theme.fontSizeTiny
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font.pixelSize: webPagePreviewColumn.largerFontSize ? Theme.fontSizeExtraSmall : Theme.fontSizeTiny
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font.italic: true
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font.italic: true
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color: Theme.secondaryColor
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color: Theme.secondaryColor
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truncationMode: TruncationMode.Fade
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truncationMode: TruncationMode.Fade
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wrapMode: Text.Wrap
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maximumLineCount: 1
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textFormat: Text.StyledText
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visible: !siteNameText.visible && !titleText.visible && !descriptionText.visible && !webPagePreviewImageItem.visible
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visible: !siteNameText.visible && !titleText.visible && !descriptionText.visible && !webPagePreviewImageItem.visible
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}
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}
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