Examples with PageRange android.print.PageRange used on opensource projects

Example 11 with PageRange

use of android.print.PageRange in project android_frameworks_base by ResurrectionRemix.

the class PageRangeUtils method getNormalizedPageCount.

/**
     * Gets the number of pages in a normalized range array.
     *
     * @param pageRanges Normalized page ranges.
     * @param layoutPageCount Page count after reported after layout pass.
     * @return The page count in the ranges.
     */
public static int getNormalizedPageCount(PageRange[] pageRanges, int layoutPageCount) {
    int pageCount = 0;
    if (pageRanges != null) {
        final int pageRangeCount = pageRanges.length;
        for (int i = 0; i < pageRangeCount; i++) {
            PageRange pageRange = pageRanges[i];
            if (PageRange.ALL_PAGES.equals(pageRange)) {
                return layoutPageCount;
            }
            pageCount += pageRange.getSize();
        }
    }
    return pageCount;
}

Example 12 with PageRange

use of android.print.PageRange in project android_frameworks_base by ResurrectionRemix.

the class PageAdapter method computePageIndexInDocument.

private int computePageIndexInDocument(int indexInAdapter) {
    int skippedAdapterPages = 0;
    final int selectedPagesCount = mSelectedPages.length;
    for (int i = 0; i < selectedPagesCount; i++) {
        PageRange pageRange = PageRangeUtils.asAbsoluteRange(mSelectedPages[i], mDocumentPageCount);
        skippedAdapterPages += pageRange.getSize();
        if (skippedAdapterPages > indexInAdapter) {
            final int overshoot = skippedAdapterPages - indexInAdapter - 1;
            return pageRange.getEnd() - overshoot;
        }
    }
    return INVALID_PAGE_INDEX;
}

Example 13 with PageRange

use of android.print.PageRange in project android_frameworks_base by ResurrectionRemix.

the class PageAdapter method computeSelectedPages.

private PageRange[] computeSelectedPages() {
    ArrayList<PageRange> selectedPagesList = new ArrayList<>();
    int startPageIndex = INVALID_PAGE_INDEX;
    int endPageIndex = INVALID_PAGE_INDEX;
    final int pageCount = mConfirmedPagesInDocument.size();
    for (int i = 0; i < pageCount; i++) {
        final int pageIndex = mConfirmedPagesInDocument.keyAt(i);
        if (startPageIndex == INVALID_PAGE_INDEX) {
            startPageIndex = endPageIndex = pageIndex;
        }
        if (endPageIndex + 1 < pageIndex) {
            PageRange pageRange = new PageRange(startPageIndex, endPageIndex);
            selectedPagesList.add(pageRange);
            startPageIndex = pageIndex;
        }
        endPageIndex = pageIndex;
    }
    if (startPageIndex != INVALID_PAGE_INDEX && endPageIndex != INVALID_PAGE_INDEX) {
        PageRange pageRange = new PageRange(startPageIndex, endPageIndex);
        selectedPagesList.add(pageRange);
    }
    PageRange[] selectedPages = new PageRange[selectedPagesList.size()];
    selectedPagesList.toArray(selectedPages);
    return selectedPages;
}

Example 14 with PageRange

use of android.print.PageRange in project android_frameworks_base by ResurrectionRemix.

the class PageAdapter method computePageIndexInFile.

private int computePageIndexInFile(int pageIndexInDocument) {
    if (!PageRangeUtils.contains(mSelectedPages, pageIndexInDocument)) {
        return INVALID_PAGE_INDEX;
    }
    if (mWrittenPages == null) {
        return INVALID_PAGE_INDEX;
    }
    int indexInFile = INVALID_PAGE_INDEX;
    final int rangeCount = mWrittenPages.length;
    for (int i = 0; i < rangeCount; i++) {
        PageRange pageRange = mWrittenPages[i];
        if (!pageRange.contains(pageIndexInDocument)) {
            indexInFile += pageRange.getSize();
        } else {
            indexInFile += pageIndexInDocument - pageRange.getStart() + 1;
            return indexInFile;
        }
    }
    return INVALID_PAGE_INDEX;
}

Example 15 with PageRange

use of android.print.PageRange in project android_frameworks_base by ResurrectionRemix.

the class PageAdapter method computeRequestedPages.

private PageRange[] computeRequestedPages(int pageInDocument) {
    if (mRequestedPages != null && PageRangeUtils.contains(mRequestedPages, pageInDocument)) {
        return mRequestedPages;
    }
    List<PageRange> pageRangesList = new ArrayList<>();
    int remainingPagesToRequest = MAX_PREVIEW_PAGES_BATCH;
    final int selectedPagesCount = mSelectedPages.length;
    // We always request the pages that are bound, i.e. shown on screen.
    PageRange[] boundPagesInDocument = computeBoundPagesInDocument();
    final int boundRangeCount = boundPagesInDocument.length;
    for (int i = 0; i < boundRangeCount; i++) {
        PageRange boundRange = boundPagesInDocument[i];
        pageRangesList.add(boundRange);
    }
    remainingPagesToRequest -= PageRangeUtils.getNormalizedPageCount(boundPagesInDocument, mDocumentPageCount);
    final boolean requestFromStart = mRequestedPages == null || pageInDocument > mRequestedPages[mRequestedPages.length - 1].getEnd();
    if (!requestFromStart) {
        if (DEBUG) {
            Log.i(LOG_TAG, "Requesting from end");
        }
        // Reminder that ranges are always normalized.
        for (int i = selectedPagesCount - 1; i >= 0; i--) {
            if (remainingPagesToRequest <= 0) {
                break;
            }
            PageRange selectedRange = PageRangeUtils.asAbsoluteRange(mSelectedPages[i], mDocumentPageCount);
            if (pageInDocument < selectedRange.getStart()) {
                continue;
            }
            PageRange pagesInRange;
            int rangeSpan;
            if (selectedRange.contains(pageInDocument)) {
                rangeSpan = pageInDocument - selectedRange.getStart() + 1;
                rangeSpan = Math.min(rangeSpan, remainingPagesToRequest);
                final int fromPage = Math.max(pageInDocument - rangeSpan - 1, 0);
                rangeSpan = Math.max(rangeSpan, 0);
                pagesInRange = new PageRange(fromPage, pageInDocument);
            } else {
                rangeSpan = selectedRange.getSize();
                rangeSpan = Math.min(rangeSpan, remainingPagesToRequest);
                rangeSpan = Math.max(rangeSpan, 0);
                final int fromPage = Math.max(selectedRange.getEnd() - rangeSpan - 1, 0);
                final int toPage = selectedRange.getEnd();
                pagesInRange = new PageRange(fromPage, toPage);
            }
            pageRangesList.add(pagesInRange);
            remainingPagesToRequest -= rangeSpan;
        }
    } else {
        if (DEBUG) {
            Log.i(LOG_TAG, "Requesting from start");
        }
        // Reminder that ranges are always normalized.
        for (int i = 0; i < selectedPagesCount; i++) {
            if (remainingPagesToRequest <= 0) {
                break;
            }
            PageRange selectedRange = PageRangeUtils.asAbsoluteRange(mSelectedPages[i], mDocumentPageCount);
            if (pageInDocument > selectedRange.getEnd()) {
                continue;
            }
            PageRange pagesInRange;
            int rangeSpan;
            if (selectedRange.contains(pageInDocument)) {
                rangeSpan = selectedRange.getEnd() - pageInDocument + 1;
                rangeSpan = Math.min(rangeSpan, remainingPagesToRequest);
                final int toPage = Math.min(pageInDocument + rangeSpan - 1, mDocumentPageCount - 1);
                pagesInRange = new PageRange(pageInDocument, toPage);
            } else {
                rangeSpan = selectedRange.getSize();
                rangeSpan = Math.min(rangeSpan, remainingPagesToRequest);
                final int fromPage = selectedRange.getStart();
                final int toPage = Math.min(selectedRange.getStart() + rangeSpan - 1, mDocumentPageCount - 1);
                pagesInRange = new PageRange(fromPage, toPage);
            }
            if (DEBUG) {
                Log.i(LOG_TAG, "computeRequestedPages() Adding range:" + pagesInRange);
            }
            pageRangesList.add(pagesInRange);
            remainingPagesToRequest -= rangeSpan;
        }
    }
    PageRange[] pageRanges = new PageRange[pageRangesList.size()];
    pageRangesList.toArray(pageRanges);
    return PageRangeUtils.normalize(pageRanges);
}