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Super PDF Reader
Commit 2b6ab242 authored by wanglei's avatar wanglei
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...提交部分功能...

parent 07eacbb3
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Showing with 106 additions and 11 deletions
app/src/main/java/com/base/superpdfreader/helps/pdf/PdfHelp.kt
View file @ 2b6ab242
package com.base.superpdfreader.helps.pdf
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import com.base.superpdfreader.bean.PdfParameterBean
import com.base.superpdfreader.bean.PdfParameterBean.Companion.arrayCompression
import com.base.superpdfreader.bean.PdfParameterBean.Companion.arrayMargin
import com.base.superpdfreader.bean.PdfParameterBean.Companion.arrayOrientation
import com.base.superpdfreader.bean.PdfParameterBean.Companion.arrayPageSize
import com.base.superpdfreader.helps.LogEx
import com.tom_roush.pdfbox.pdmodel.PDDocument
import com.tom_roush.pdfbox.pdmodel.PDPage
import com.tom_roush.pdfbox.pdmodel.PDPageContentStream
import com.tom_roush.pdfbox.pdmodel.common.PDRectangle
import com.tom_roush.pdfbox.pdmodel.graphics.image.PDImageXObject
import java.io.File
import java.io.BufferedInputStream
import java.io.ByteArrayOutputStream
import java.io.FileInputStream
import java.io.IOException
object PdfHelp {
private val TAG = "PdfHelp"
fun convertImagesToPdf(imagePath: PdfParameterBean, pdfPath: String) {
fun convertImagesToPdf(pdfParameterBean: PdfParameterBean, pdfPath: String) {
LogEx.logDebug(TAG, "orientation=${arrayOrientation[pdfParameterBean.orientation]}")
LogEx.logDebug(TAG, "pageSize=${arrayPageSize[pdfParameterBean.pageSize]}")
LogEx.logDebug(TAG, "margin=${arrayMargin[pdfParameterBean.margin]}")
LogEx.logDebug(TAG, "compression=${arrayCompression[pdfParameterBean.compression]}")
try {
PDDocument().use { document ->
imagePath.pathArray.forEach { imagePath ->
val page = PDPage(PDRectangle.A4) // 创建一个 A4 大小的页面
pdfParameterBean.pathArray.forEach { imagePath ->
// val pdImage = PDImageXObject.createFromFileByExtension(File(imagePath), document)
val compress = when (pdfParameterBean.compression) {
0 -> 80
1 -> 60
2 -> 40
else -> 100
}
val byteArray = compressImage(imagePath, compress)
LogEx.logDebug(TAG, "compress size=${byteArray.size}")
val pdImage = PDImageXObject.createFromByteArray(document, byteArray, "")
//纸长大小
val rectangle = when (pdfParameterBean.pageSize) {
0 -> PDRectangle(pdImage.width.toFloat(), pdImage.height.toFloat())
1 -> PDRectangle.A4
2 -> PDRectangle.LETTER
else -> PDRectangle.A4
}
val page = PDPage(rectangle)
document.addPage(page)
val pdImage = PDImageXObject.createFromFileByExtension(File(imagePath), document)
val pageSize = page.mediaBox
if (pdfParameterBean.orientation == 1) {
page.rotation = 90
}
var x = 0f
var y = 0f
var scaledWidth = 0f
var scaledHeight = 0f
var needScale = false
val pageSize = page.mediaBox
var hMargin = 0
var vMargin = 0
if (pdfParameterBean.margin == 1) {
hMargin = 100
vMargin = 100
} else if (pdfParameterBean.margin == 2) {
hMargin = 200
vMargin = 200
}
if (pdImage.width > pageSize.width || pdImage.height > pageSize.height) {
if (pdImage.width > pageSize.width + hMargin * 2 || pdImage.height > pageSize.height + vMargin * 2) {
// val scaleX = PDRectangle.A4.width / imageWidth
// val scaleY = PDRectangle.A4.height / imageHeight
needScale = true
val scaleX = pageSize.width / pdImage.width
val scaleY = pageSize.height / pdImage.height
val scaleX = pageSize.width / (pdImage.width + hMargin * 2)
val scaleY = pageSize.height / (pdImage.height + vMargin * 2)
val scale = minOf(scaleX, scaleY)
scaledWidth = pdImage.width * scale
scaledHeight = pdImage.height * scale
......@@ -47,6 +94,7 @@ object PdfHelp {
x = (pageSize.width - pdImage.width) / 2f
y = (pageSize.height - pdImage.height) / 2f
}
LogEx.logDebug(TAG, "x=$x y=$y")
LogEx.logDebug(TAG, "pageSize.width=${pageSize.width}")
LogEx.logDebug(TAG, "pageSize.height=${pageSize.height}")
......@@ -55,7 +103,6 @@ object PdfHelp {
LogEx.logDebug(TAG, "scaledWidth=${scaledWidth}")
LogEx.logDebug(TAG, "scaledHeight=${scaledHeight}")
PDPageContentStream(document, page).use { contentStream ->
if (needScale) {
contentStream.drawImage(pdImage, x, y, scaledWidth, scaledHeight)
......@@ -72,4 +119,38 @@ object PdfHelp {
}
}
fun compressImage(path: String, compress: Int): ByteArray {
val bitmap = openImage2Bitmap(path)
val out = ByteArrayOutputStream()
var format = Bitmap.CompressFormat.JPEG
if (path.contains(".png")) {
format = Bitmap.CompressFormat.PNG
}
try {
out.flush()
out.close()
} catch (e: IOException) {
e.printStackTrace()
}
bitmap?.compress(format, compress, out)
return out.toByteArray()
}
fun openImage2Bitmap(imagePath: String): Bitmap? {
var bis: BufferedInputStream? = null
var bitmap: Bitmap? = null
try {
bis = BufferedInputStream(FileInputStream(imagePath))
bitmap = BitmapFactory.decodeStream(bis);
} catch (e: Exception) {
} finally {
bis?.close()
}
return bitmap
}
}
\ No newline at end of file
app/src/main/java/com/base/superpdfreader/view/PDFSaveDialog.kt
View file @ 2b6ab242
......@@ -5,7 +5,9 @@ import android.app.Dialog
import android.content.Context
import android.view.LayoutInflater
import android.widget.TextView
import android.widget.Toast
import androidx.core.view.isVisible
import androidx.core.widget.addTextChangedListener
import com.base.superpdfreader.R
import com.base.superpdfreader.bean.PdfParameterBean
import com.base.superpdfreader.bean.PdfParameterBean.Companion.arrayCompression
......@@ -40,6 +42,9 @@ object PDFSaveDialog {
binding.tvMargin.text = arrayMargin[0]
binding.tvCompression.text = arrayCompression[0]
binding.ivDelete.setOnClickListener {
binding.editName.setText("")
}
binding.flOrientation.setOnClickListener {
showPDFSaveParametersDialog(arrayOrientation) { index, text ->
pdfParameterBean.orientation = index
......@@ -72,6 +77,12 @@ object PDFSaveDialog {
if (binding.flPassword.isVisible) {
pdfParameterBean.password = binding.editPassword.text.toString()
}
val editName = binding.editName.text.toString()
if (editName.isEmpty()) {
Toast.makeText(this, "Name cannot be empty", Toast.LENGTH_SHORT).show()
return@setOnClickListener
}
pdfParameterBean.pdfName = editName
saveAction.invoke(pdfParameterBean)
dialog.dismiss()
}
......
app/src/main/res/layout/activity_pdf_browser.xml
View file @ 2b6ab242
......@@ -11,21 +11,23 @@
android:id="@+id/v_top"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="@color/white"
app:layout_constraintTop_toTopOf="parent" />
<com.github.barteksc.pdfviewer.PDFView
android:id="@+id/pdfview"
android:layout_width="match_parent"
android:layout_height="0dp"
android:background="#FACCC6"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="@id/v_top" />
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/ll_tools"
android:visibility="gone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:visibility="gone"
app:layout_constraintTop_toTopOf="@id/pdfview">
......@@ -104,6 +106,7 @@
android:id="@+id/rv_page"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
app:layout_constraintBottom_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
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