/** Updates bitmaps for page meshes. */
private void updatePages() {
Log.d("artbook", ">>>>>update page(s): " + Thread.currentThread());
if (mPageProvider == null || mPageBitmapWidth <= 0 || mPageBitmapHeight <= 0) {
return;
}
// Remove meshes from renderer.
mRenderer.removeCurlMesh(mPageLeft);
mRenderer.removeCurlMesh(mPageRight);
mRenderer.removeCurlMesh(mPageCurl);
int leftIdx = mCurrentIndex - 1;
int rightIdx = mCurrentIndex;
int curlIdx = -1;
if (mCurlState == CURL_LEFT) {
curlIdx = leftIdx;
--leftIdx;
} else if (mCurlState == CURL_RIGHT) {
curlIdx = rightIdx;
++rightIdx;
}
if (rightIdx >= 0 && rightIdx < mPageProvider.getPageCount()) {
updatePage(mPageRight.getTexturePage(), rightIdx);
mPageRight.setFlipTexture(false);
mPageRight.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_RIGHT));
mPageRight.reset();
mRenderer.addCurlMesh(mPageRight);
}
if (leftIdx >= 0 && leftIdx < mPageProvider.getPageCount()) {
updatePage(mPageLeft.getTexturePage(), leftIdx);
mPageLeft.setFlipTexture(true);
mPageLeft.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_LEFT));
mPageLeft.reset();
if (mRenderLeftPage) {
mRenderer.addCurlMesh(mPageLeft);
}
}
if (curlIdx >= 0 && curlIdx < mPageProvider.getPageCount()) {
updatePage(mPageCurl.getTexturePage(), curlIdx);
if (mCurlState == CURL_RIGHT) {
mPageCurl.setFlipTexture(true);
mPageCurl.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_RIGHT));
} else {
mPageCurl.setFlipTexture(false);
mPageCurl.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_LEFT));
}
mPageCurl.reset();
mRenderer.addCurlMesh(mPageCurl);
}
}
/** Switches meshes and loads new bitmaps if available. Updated to support 2 pages in landscape */
private void startCurl(int page) {
switch (page) {
// Once right side page is curled, first right page is assigned into
// curled page. And if there are more bitmaps available new bitmap is
// loaded into right side mesh.
case CURL_RIGHT:
{
// Remove meshes from renderer.
mRenderer.removeCurlMesh(mPageLeft);
mRenderer.removeCurlMesh(mPageRight);
mRenderer.removeCurlMesh(mPageCurl);
// We are curling right page.
CurlMesh curl = mPageRight;
mPageRight = mPageCurl;
mPageCurl = curl;
if (mCurrentIndex > 0) {
mPageLeft.setFlipTexture(true);
mPageLeft.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_LEFT));
mPageLeft.reset();
if (mRenderLeftPage) {
mRenderer.addCurlMesh(mPageLeft);
}
}
if (mCurrentIndex < mPageProvider.getPageCount() - 1) {
updatePage(mPageRight.getTexturePage(), mCurrentIndex + 1);
mPageRight.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_RIGHT));
mPageRight.setFlipTexture(false);
mPageRight.reset();
mRenderer.addCurlMesh(mPageRight);
}
// Add curled page to renderer.
mPageCurl.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_RIGHT));
mPageCurl.setFlipTexture(false);
mPageCurl.reset();
mRenderer.addCurlMesh(mPageCurl);
mCurlState = CURL_RIGHT;
break;
}
// On left side curl, left page is assigned to curled page. And if
// there are more bitmaps available before currentIndex, new bitmap
// is loaded into left page.
case CURL_LEFT:
{
// Remove meshes from renderer.
mRenderer.removeCurlMesh(mPageLeft);
mRenderer.removeCurlMesh(mPageRight);
mRenderer.removeCurlMesh(mPageCurl);
// We are curling left page.
CurlMesh curl = mPageLeft;
mPageLeft = mPageCurl;
mPageCurl = curl;
if (mCurrentIndex > 1) {
updatePage(mPageLeft.getTexturePage(), mCurrentIndex - 2);
mPageLeft.setFlipTexture(true);
mPageLeft.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_LEFT));
mPageLeft.reset();
if (mRenderLeftPage) {
mRenderer.addCurlMesh(mPageLeft);
}
}
// If there is something to show on right page add it to renderer.
if (mCurrentIndex < mPageProvider.getPageCount()) {
mPageRight.setFlipTexture(false);
mPageRight.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_RIGHT));
mPageRight.reset();
mRenderer.addCurlMesh(mPageRight);
}
// How dragging previous page happens depends on view mode.
if (mViewMode == SHOW_ONE_PAGE
|| (mCurlState == CURL_LEFT && mViewMode == SHOW_TWO_PAGES)) {
mPageCurl.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_RIGHT));
mPageCurl.setFlipTexture(false);
} else {
mPageCurl.setRect(mRenderer.getPageRect(CurlRenderer.PAGE_LEFT));
mPageCurl.setFlipTexture(true);
}
mPageCurl.reset();
mRenderer.addCurlMesh(mPageCurl);
mCurlState = CURL_LEFT;
break;
}
}
}
