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@ -1,83 +1,261 @@ |
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package io.legado.app.ui.book.read.page |
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import android.text.Spannable |
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import android.text.SpannableStringBuilder |
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import android.text.style.ForegroundColorSpan |
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import android.text.style.RelativeSizeSpan |
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import androidx.core.text.HtmlCompat |
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import androidx.core.text.HtmlCompat.FROM_HTML_MODE_COMPACT |
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import io.legado.app.App |
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import android.graphics.Point |
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import android.text.Layout |
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import android.text.StaticLayout |
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import android.text.TextPaint |
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import io.legado.app.data.entities.BookChapter |
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import io.legado.app.lib.theme.accentColor |
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import io.legado.app.help.BookHelp |
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import io.legado.app.help.ReadBookConfig |
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import io.legado.app.ui.book.read.page.entities.TextChapter |
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import io.legado.app.ui.book.read.page.entities.TextChar |
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import io.legado.app.ui.book.read.page.entities.TextLine |
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import io.legado.app.ui.book.read.page.entities.TextPage |
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import io.legado.app.utils.dp |
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object ChapterProvider { |
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var readAloudSpan = ForegroundColorSpan(App.INSTANCE.accentColor) |
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private val titleSpan = RelativeSizeSpan(1.2f) |
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var viewWidth = 0 |
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var viewHeight = 0 |
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private var visibleWidth = 0 |
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private var visibleHeight = 0 |
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private var paddingLeft = 0 |
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private var paddingTop = 0 |
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private var lineSpacingExtra = 0 |
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private var paragraphSpacing = 0 |
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var titlePaint = TextPaint() |
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var contentPaint = TextPaint() |
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var textView: ContentTextView? = null |
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init { |
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upStyle(ReadBookConfig.durConfig) |
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} |
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fun upStyle(config: ReadBookConfig.Config) { |
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titlePaint.color = config.textColor() |
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titlePaint.letterSpacing = config.letterSpacing |
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contentPaint.color = config.textColor() |
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contentPaint.letterSpacing = config.letterSpacing |
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lineSpacingExtra = config.lineSpacingExtra |
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paragraphSpacing = config.paragraphSpacing |
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titlePaint.textSize = (config.textSize + 2).dp.toFloat() |
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contentPaint.textSize = config.textSize.dp.toFloat() |
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upSize(config) |
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} |
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fun upSize(config: ReadBookConfig.Config) { |
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paddingLeft = config.paddingLeft.dp |
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paddingTop = config.paddingTop.dp |
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visibleWidth = viewWidth - paddingLeft - config.paddingRight.dp |
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visibleHeight = viewHeight - paddingTop - config.paddingBottom.dp |
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} |
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@Suppress("DEPRECATION") |
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fun getTextChapter( |
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bookChapter: BookChapter, |
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content: String, |
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chapterSize: Int, |
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isHtml: Boolean = false |
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): TextChapter { |
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textView?.let { |
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val bodyIndent = BookHelp.bodyIndent |
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val textPages = arrayListOf<TextPage>() |
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val pageLines = arrayListOf<Int>() |
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val pageLengths = arrayListOf<Int>() |
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var surplusText = content |
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var pageIndex = 0 |
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var durY = 0 |
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textPages.add(TextPage()) |
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while (surplusText.isNotEmpty()) { |
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val spannableStringBuilder = |
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if (isHtml) { |
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HtmlCompat.fromHtml( |
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surplusText, |
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FROM_HTML_MODE_COMPACT |
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) as SpannableStringBuilder |
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if (textPages.first().textLines.isEmpty()) { |
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//title |
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val end = surplusText.indexOf("\n") |
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if (end > 0) { |
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val title = surplusText.substring(0, end) |
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surplusText = surplusText.substring(end + 1) |
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val layout = StaticLayout( |
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title, titlePaint, visibleWidth, |
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Layout.Alignment.ALIGN_NORMAL, 1f, lineSpacingExtra.toFloat(), false |
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) |
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for (lineIndex in 0 until layout.lineCount) { |
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durY = durY + layout.getLineBottom(lineIndex) - layout.getLineTop(lineIndex) |
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val textLine = TextLine(isTitle = true) |
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if (durY < visibleHeight) { |
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textPages.last().textLines.add(textLine) |
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} else { |
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durY = 0 |
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textPages.add(TextPage()) |
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textPages.last().textLines.add(textLine) |
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} |
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textLine.lineBottom = layout.getLineBottom(lineIndex) |
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textLine.lineTop = layout.getLineTop(lineIndex) |
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val words = title.substring( |
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layout.getLineStart(lineIndex), |
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layout.getLineEnd(lineIndex) |
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) |
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val desiredWidth = layout.getLineMax(lineIndex) |
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if (lineIndex != layout.lineCount - 1) { |
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val gapCount: Int = words.length - 1 |
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val d = (visibleWidth - desiredWidth) / gapCount |
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var x = 0 |
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for (i in words.indices) { |
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val char = words[i].toString() |
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val cw = StaticLayout.getDesiredWidth(char, titlePaint) |
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val x1 = if (i != words.lastIndex) { |
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(x + cw + d).toInt() |
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} else { |
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(x + cw).toInt() |
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} |
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val textChar = TextChar( |
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charData = char, |
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leftBottomPosition = Point(paddingLeft + x, paddingTop + durY), |
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rightTopPosition = Point( |
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paddingLeft + x1, |
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paddingTop + durY - (textLine.lineBottom - textLine.lineTop) |
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) |
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) |
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textLine.textChars.add(textChar) |
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x = x1 |
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} |
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} else { |
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SpannableStringBuilder(surplusText) |
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//最后一行 |
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var x = 0 |
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for (i in words.indices) { |
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val char = words[i].toString() |
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val cw = StaticLayout.getDesiredWidth(char, titlePaint) |
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val x1 = (x + cw).toInt() |
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val textChar = TextChar( |
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charData = char, |
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leftBottomPosition = Point(paddingLeft + x, paddingTop + durY), |
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rightTopPosition = Point( |
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paddingLeft + x1, |
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paddingTop + durY - (textLine.lineBottom - textLine.lineTop) |
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) |
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) |
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textLine.textChars.add(textChar) |
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x = x1 |
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} |
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if (pageIndex == 0) { |
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} |
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} |
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durY += paragraphSpacing |
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} |
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} else { |
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//正文 |
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val end = surplusText.indexOf("\n") |
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if (end > 0) { |
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spannableStringBuilder.setSpan( |
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titleSpan, |
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0, |
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end, |
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Spannable.SPAN_INCLUSIVE_EXCLUSIVE |
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val text: String |
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if (end >= 0) { |
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text = surplusText.substring(0, end) |
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surplusText = surplusText.substring(end + 1) |
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} else { |
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text = surplusText |
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surplusText = "" |
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} |
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val layout = StaticLayout( |
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text, contentPaint, visibleWidth, |
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Layout.Alignment.ALIGN_NORMAL, 1f, lineSpacingExtra.toFloat(), false |
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) |
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for (lineIndex in 0 until layout.lineCount) { |
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val textLine = TextLine(isTitle = false) |
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durY = durY + layout.getLineBottom(lineIndex) - layout.getLineTop(lineIndex) |
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if (durY < visibleHeight) { |
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textPages.last().textLines.add(textLine) |
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} else { |
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durY = 0 |
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textPages.add(TextPage()) |
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textPages.last().textLines.add(textLine) |
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} |
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textLine.lineBottom = layout.getLineBottom(lineIndex) |
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textLine.lineTop = layout.getLineTop(lineIndex) |
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var words = |
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text.substring(layout.getLineStart(lineIndex), layout.getLineEnd(lineIndex)) |
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val desiredWidth = layout.getLineMax(lineIndex) |
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if (lineIndex == 0 && layout.lineCount > 1) { |
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//第一行 |
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var x = 0 |
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val icw = StaticLayout.getDesiredWidth(bodyIndent, contentPaint) |
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var x1 = (x + icw).toInt() |
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val textChar = TextChar( |
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charData = bodyIndent, |
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leftBottomPosition = Point(paddingLeft + x, paddingTop + durY), |
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rightTopPosition = Point( |
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paddingLeft + x1, |
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paddingTop + durY - (textLine.lineBottom - textLine.lineTop) |
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) |
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) |
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textLine.textChars.add(textChar) |
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x = x1 |
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words = words.replaceFirst(bodyIndent, "") |
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val gapCount: Int = words.length - 1 |
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val d = (visibleWidth - desiredWidth) / gapCount |
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for (i in words.indices) { |
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val char = words[i].toString() |
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val cw = StaticLayout.getDesiredWidth(char, contentPaint) |
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x1 = if (i != words.lastIndex) { |
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(x + cw + d).toInt() |
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} else { |
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(x + cw).toInt() |
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} |
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val textChar1 = TextChar( |
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charData = char, |
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leftBottomPosition = Point(paddingLeft + x, paddingTop + durY), |
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rightTopPosition = Point( |
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paddingLeft + x1, |
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paddingTop + durY - (textLine.lineBottom - textLine.lineTop) |
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) |
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) |
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textLine.textChars.add(textChar1) |
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x = x1 |
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} |
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} else if (lineIndex == layout.lineCount - 1) { |
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//最后一行 |
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var x = 0 |
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for (i in words.indices) { |
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val char = words[i].toString() |
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val cw = StaticLayout.getDesiredWidth(char, contentPaint) |
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val x1 = (x + cw).toInt() |
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val textChar = TextChar( |
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charData = char, |
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leftBottomPosition = Point(paddingLeft + x, paddingTop + durY), |
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rightTopPosition = Point( |
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paddingLeft + x1, |
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paddingTop + durY - (textLine.lineBottom - textLine.lineTop) |
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) |
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) |
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textLine.textChars.add(textChar) |
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x = x1 |
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} |
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it.text = spannableStringBuilder |
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val lastLine = it.getLineNum() |
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val lastCharNum = it.getCharNum(lastLine) |
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if (lastCharNum == 0) { |
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break |
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} else { |
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pageLines.add(lastLine) |
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pageLengths.add(lastCharNum) |
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textPages.add( |
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TextPage( |
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index = pageIndex, |
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text = spannableStringBuilder.delete( |
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lastCharNum, |
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spannableStringBuilder.length |
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), |
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title = bookChapter.title, |
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chapterSize = chapterSize, |
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chapterIndex = bookChapter.index |
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//中间行 |
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val gapCount: Int = words.length - 1 |
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val d = (visibleWidth - desiredWidth) / gapCount |
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var x = 0 |
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for (i in words.indices) { |
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val char = words[i].toString() |
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val cw = StaticLayout.getDesiredWidth(char, contentPaint) |
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val x1 = if (i != words.lastIndex) { |
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(x + cw + d).toInt() |
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} else { |
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(x + cw).toInt() |
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} |
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val textChar = TextChar( |
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charData = char, |
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leftBottomPosition = Point(paddingLeft + x, paddingTop + durY), |
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rightTopPosition = Point( |
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paddingLeft + x1, |
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paddingTop + durY - (textLine.lineBottom - textLine.lineTop) |
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) |
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) |
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surplusText = surplusText.substring(lastCharNum) |
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pageIndex++ |
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textLine.textChars.add(textChar) |
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x = x1 |
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} |
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} |
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} |
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durY += paragraphSpacing |
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} |
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for (item in textPages) { |
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} |
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for ((index, item) in textPages.withIndex()) { |
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item.index = index |
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item.pageSize = textPages.size |
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item.chapterIndex = bookChapter.index |
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item.chapterSize = chapterSize |
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item.title = bookChapter.title |
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} |
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return TextChapter( |
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bookChapter.index, |
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@ -88,19 +266,5 @@ object ChapterProvider { |
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pageLengths, |
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chapterSize |
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) |
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} ?: return TextChapter( |
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bookChapter.index, |
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bookChapter.title, |
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bookChapter.url, |
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arrayListOf(), |
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arrayListOf(), |
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arrayListOf(), |
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chapterSize |
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) |
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} |
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fun upReadAloudSpan() { |
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readAloudSpan = ForegroundColorSpan(App.INSTANCE.accentColor) |
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} |
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} |
kunfei
5 years ago