diff --git a/src/app/qml/viewers/ImageBrowser.qml b/src/app/qml/viewers/ImageBrowser.qml index 5f4bcd0..855f232 100644 --- a/src/app/qml/viewers/ImageBrowser.qml +++ b/src/app/qml/viewers/ImageBrowser.qml @@ -1,268 +1,296 @@ /* * Copyright (C) 2015 Vishesh Handa * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) version 3, or any * later version accepted by the membership of KDE e.V. (or its * successor approved by the membership of KDE e.V.), which shall * act as a proxy defined in Section 6 of version 3 of the license. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . * */ import QtQuick 2.12 // import QtQuick.Layouts 1.1 // import QtQuick.Controls 1.0 as QtControls import org.kde.kirigami 2.1 as Kirigami import "helpers" as Helpers /** * @brief The image viewer used by the CBR and Folder Viewer Base classes. * * It handles drawing the image and the different zoom modes. */ ListView { id: root function goNextFrame() { root.currentItem.goNextFrame(); } function goPreviousFrame() { root.currentItem.goPreviousFrame(); } signal goNextPage(); signal goPreviousPage(); + onWidthChanged: restorationTimer.start() + onHeightChanged: restorationTimer.start() + Timer { + id: restorationTimer + interval: 300 + running: false + repeat: false + onTriggered: { + imageBrowser.positionViewAtIndex(imageBrowser.currentIndex, ListView.Center); + currentItem.refocusFrame(); + } + } + interactive: false // No interactive flicky stuff here, we'll handle that with the navigator instance property int imageWidth property int imageHeight orientation: ListView.Horizontal snapMode: ListView.SnapOneItem cacheBuffer: 3000 // This ensures that the current index is always up to date, which we need to ensure we can track the current page // as required by the thumbnail navigator, and the resume-reading-from functionality onMovementEnded: { var indexHere = indexAt(contentX + width / 2, contentY + height / 2); if(currentIndex !== indexHere) { currentIndex = indexHere; } } /** * An interactive area with an image. * * Clicking once on the image will hide all other controls from view. * Clicking twice will instead zoom in. * * Pinch will zoom in as well. */ delegate: Flickable { id: flick opacity: ListView.isCurrentItem ? 1 : 0 Behavior on opacity { NumberAnimation { duration: applicationWindow().animationDuration; easing.type: Easing.InOutQuad; } } width: imageWidth height: imageHeight contentWidth: imageWidth contentHeight: imageHeight interactive: (contentWidth > width || contentHeight > height) && (totalFrames === 0) z: interactive ? 1000 : 0 function goNextFrame() { image.nextFrame(); } function goPreviousFrame() { image.previousFrame(); } function setColouredHole(holeRect,holeColor) { holyRect.setHole(holeRect); holyRect.color = holeColor; } + Timer { + id: refocusTimer + interval: 200 + running: false + repeat: false + onTriggered: { + flick.resetHole(); + if (totalFrames > 0 && currentFrame > -1) { + image.focusOnFrame(); + } + } + } + function refocusFrame() { + refocusTimer.start(); + } function resetHole() { if(image.status == Image.Ready) { var holeColor = "blue"; if (image.currentPageObject !== null) { holeColor = image.currentPageObject.bgcolor; } setColouredHole(image.paintedRect, holeColor); } } ListView.onIsCurrentItemChanged: resetHole(); Connections { target: image onStatusChanged: resetHole(); } property alias totalFrames: image.totalFrames; property alias currentFrame: image.currentFrame; pixelAligned: true Behavior on contentX { NumberAnimation { duration: applicationWindow().animationDuration; easing.type: Easing.InOutQuad; } } Behavior on contentY { NumberAnimation { duration: applicationWindow().animationDuration; easing.type: Easing.InOutQuad; } } Behavior on contentWidth { NumberAnimation { duration: applicationWindow().animationDuration; easing.type: Easing.InOutQuad; } } Behavior on contentHeight { NumberAnimation { duration: applicationWindow().animationDuration; easing.type: Easing.InOutQuad; } } PinchArea { width: Math.max(flick.contentWidth, flick.width) height: Math.max(flick.contentHeight, flick.height) property real initialWidth property real initialHeight onPinchStarted: { initialWidth = flick.contentWidth initialHeight = flick.contentHeight } onPinchUpdated: { // adjust content pos due to drag flick.contentX += pinch.previousCenter.x - pinch.center.x flick.contentY += pinch.previousCenter.y - pinch.center.y // resize content flick.resizeContent(Math.max(imageWidth, initialWidth * pinch.scale), Math.max(imageHeight, initialHeight * pinch.scale), pinch.center) } onPinchFinished: { // Move its content within bounds. flick.returnToBounds(); } Image { id: image width: flick.contentWidth height: flick.contentHeight Helpers.HolyRectangle { id: holyRect anchors.fill: parent color: image.currentFrameObj.bgcolor visible: opacity > 0 } source: model.url fillMode: Image.PreserveAspectFit asynchronous: true property bool shouldCheat: imageWidth * 2 > maxTextureSize || imageHeight * 2 > maxTextureSize; property bool isTall: imageHeight < imageWidth; property int fixedWidth: isTall ? maxTextureSize * (imageWidth / imageHeight) : maxTextureSize; property int fixedHeight: isTall ? maxTextureSize : maxTextureSize * (imageHeight / imageWidth); sourceSize.width: shouldCheat ? fixedWidth : imageWidth * 2; sourceSize.height: shouldCheat ? fixedHeight : imageHeight * 2; MouseArea { anchors.fill: parent } // Setup for all the entries. property QtObject currentPageObject: { if (root.model.acbfData) { if (model.index===0) { currentPageObject = root.model.acbfData.metaData.bookInfo.coverpage(); } else if (model.index > 0) { currentPageObject = root.model.acbfData.body.page(model.index-1); } } else { null; } } property real muliplier: isTall? (paintedHeight / implicitHeight): (paintedWidth / implicitWidth); property int offsetX: (width-paintedWidth)/2; property int offsetY: (height-paintedHeight)/2; property rect paintedRect: Qt.rect(offsetX, offsetY, paintedWidth, paintedHeight); function focusOnFrame() { flick.resizeContent(imageWidth, imageHeight, Qt.point(flick.contentX, flick.contentY)); var frameObj = image.currentFrameObj; var frameBounds = frameObj.bounds; var frameMultiplier = image.implicitWidth/frameBounds.width * (root.imageWidth/image.paintedWidth); // If it's now too large to fit inside the viewport, scale it by height instead if ((frameBounds.height/frameBounds.width)*root.imageWidth > root.imageHeight) { frameMultiplier = image.implicitHeight/frameBounds.height * (root.imageHeight/image.paintedHeight); } // console.debug("Frame bounds for frame " + index + " are " + frameBounds + " with multiplier " + frameMultiplier); flick.resizeContent(globalUiScaleFactor * imageWidth * frameMultiplier, globalUiScaleFactor * imageHeight * frameMultiplier, Qt.point(flick.contentX,flick.contentY)); var frameRect = Qt.rect((image.muliplier * frameBounds.x) / globalUiScaleFactor + image.offsetX , (image.muliplier * frameBounds.y) / globalUiScaleFactor + image.offsetY , (image.muliplier * frameBounds.width) / globalUiScaleFactor , (image.muliplier * frameBounds.height) / globalUiScaleFactor); flick.contentX = frameRect.x - (flick.width-frameRect.width)/2; flick.contentY = frameRect.y - (flick.height-frameRect.height)/2; } function nextFrame() { if (image.totalFrames > 0 && image.currentFrame+1 < image.totalFrames) { image.currentFrame++; } else { image.currentFrame = -1; flick.returnToBounds(); root.goNextPage(); if(root.currentItem.totalFrames > 0) { root.currentItem.currentFrame = 0; } } } function previousFrame() { if (image.totalFrames > 0 && image.currentFrame-1 > -1) { image.currentFrame--; } else { image.currentFrame = -1; flick.returnToBounds(); root.goPreviousPage(); if(root.currentItem.totalFrames > 0) { root.currentItem.currentFrame = root.currentItem.totalFrames - 1; } } } property int totalFrames: image.currentPageObject? image.currentPageObject.framePointStrings.length: 0; property int currentFrame: -1; property QtObject currentFrameObj: image.currentPageObject && image.totalFrames > 0 && image.currentFrame > -1 ? image.currentPageObject.frame(currentFrame) : noFrame; onCurrentFrameObjChanged: { focusOnFrame(image.currentFrame); holyRect.setHole(Qt.rect((image.muliplier * image.currentFrameObj.bounds.x) / globalUiScaleFactor + image.offsetX, (image.muliplier * image.currentFrameObj.bounds.y) / globalUiScaleFactor + image.offsetY, (image.muliplier * image.currentFrameObj.bounds.width) / globalUiScaleFactor, (image.muliplier * image.currentFrameObj.bounds.height) / globalUiScaleFactor)); } property QtObject noFrame: QtObject { property rect bounds: image.paintedRect property color bgcolor: image.currentPageObject.bgcolor } Repeater { model: image.currentPageObject? image.currentPageObject.framePointStrings: 0; Rectangle { id: frame; x: ((image.muliplier * image.currentPageObject.frame(index).bounds.x) / globalUiScaleFactor) + image.offsetX; y: ((image.muliplier * image.currentPageObject.frame(index).bounds.y) / globalUiScaleFactor) + image.offsetY; width: (image.muliplier * image.currentPageObject.frame(index).bounds.width) / globalUiScaleFactor; height: (image.muliplier * image.currentPageObject.frame(index).bounds.height) / globalUiScaleFactor; color: "blue"; opacity: 0; } } MouseArea { anchors.fill: parent; enabled: flick.interactive; onClicked: startToggleControls(); onDoubleClicked: { abortToggleControls(); flick.resizeContent(imageWidth, imageHeight, Qt.point(imageWidth/2, imageHeight/2)); flick.returnToBounds(); } } } } } Helpers.Navigator { enabled: root.currentItem ? !root.currentItem.interactive : false; anchors.fill: parent; onLeftRequested: root.layoutDirection === Qt.RightToLeft? root.goNextFrame(): root.goPreviousFrame(); onRightRequested: root.layoutDirection === Qt.RightToLeft? root.goPreviousFrame(): root.goNextFrame(); onTapped: startToggleControls(); onDoubleTapped: { abortToggleControls(); if (root.currentItem.totalFrames === 0) { root.currentItem.resizeContent(imageWidth * 2, imageHeight * 2, Qt.point(eventPoint.x, eventPoint.y)); root.currentItem.returnToBounds(); } } } }