diff options
Diffstat (limited to 'Source/WebKit/android/nav/SelectText.cpp')
| -rw-r--r-- | Source/WebKit/android/nav/SelectText.cpp | 1931 |
1 files changed, 5 insertions, 1926 deletions
diff --git a/Source/WebKit/android/nav/SelectText.cpp b/Source/WebKit/android/nav/SelectText.cpp index d20c44a..7ce32c3 100644 --- a/Source/WebKit/android/nav/SelectText.cpp +++ b/Source/WebKit/android/nav/SelectText.cpp @@ -25,23 +25,20 @@ #define LOG_TAG "webviewglue" -#include "CachedPrefix.h" +#include "config.h" + #include "BidiResolver.h" #include "BidiRunList.h" -#include "CachedRoot.h" +#include "GLExtras.h" #include "LayerAndroid.h" -#include "ParseCanvas.h" #include "SelectText.h" #include "SkBitmap.h" #include "SkBounder.h" -#include "SkGradientShader.h" -#include "SkMatrix.h" +#include "SkCanvas.h" #include "SkPicture.h" -#include "SkPixelXorXfermode.h" #include "SkPoint.h" #include "SkRect.h" #include "SkRegion.h" -#include "SkUtils.h" #include "TextRun.h" #ifdef DEBUG_NAV_UI @@ -52,7 +49,7 @@ // #define EXTRA_NOISY_LOGGING 1 #define DEBUG_TOUCH_HANDLES 0 #if DEBUG_TOUCH_HANDLES -#define DBG_HANDLE_LOG(format, ...) LOGD("%s " format, __FUNCTION__, __VA_ARGS__) +#define DBG_HANDLE_LOG(format, ...) ALOGD("%s " format, __FUNCTION__, __VA_ARGS__) #else #define DBG_HANDLE_LOG(...) #endif @@ -147,1921 +144,3 @@ void ReverseBidi(UChar* chars, int len) { } -namespace android { - -#define HYPHEN_MINUS 0x2D // ASCII hyphen -#define SOLIDUS 0x2F // ASCII slash -#define REVERSE_SOLIDUS 0x5C // ASCII backslash -#define HYPHEN 0x2010 // unicode hyphen, first in range of dashes -#define HORZ_BAR 0x2015 // unicode horizontal bar, last in range of dashes -#define TOUCH_SLOP 10 // additional distance from character rect when hit - -class CommonCheck : public SkBounder { -public: - CommonCheck(const SkIRect& area) - : mArea(area) - , mLastUni(0) - { - mLastGlyph.fGlyphID = static_cast<uint16_t>(-1); - mLastCandidate.fGlyphID = static_cast<uint16_t>(-1); - mMatrix.reset(); - reset(); - } - - /* called only while the picture is parsed */ - int base() { - if (mBase == INT_MAX) { - SkPoint result; - mMatrix.mapXY(0, mY, &result); - mBase = SkScalarFloor(result.fY); - } - return mBase; - } - - /* called only while the picture is parsed */ - int bottom() { - if (mBottom == INT_MAX) { - SkPoint result; - SkPaint::FontMetrics metrics; - mPaint.getFontMetrics(&metrics); - mMatrix.mapXY(0, metrics.fDescent + mY, &result); - mBottom = SkScalarCeil(result.fY); - } - return mBottom; - } - -#if DEBUG_NAV_UI - // make current (possibily uncomputed) value visible for debugging - int bottomDebug() const - { - return mBottom; - } -#endif - - bool addNewLine(const SkBounder::GlyphRec& rec) - { - SkFixed lineSpacing = SkFixedAbs(mLastGlyph.fLSB.fY - rec.fLSB.fY); - SkFixed lineHeight = SkIntToFixed(bottom() - top()); - return lineSpacing >= lineHeight + (lineHeight >> 1); // 1.5 - } - - bool addSpace(const SkBounder::GlyphRec& rec) - { - bool newBaseLine = mLastGlyph.fLSB.fY != rec.fLSB.fY; - if (((mLastUni >= HYPHEN && mLastUni <= HORZ_BAR) - || mLastUni == HYPHEN_MINUS || mLastUni == SOLIDUS - || mLastUni == REVERSE_SOLIDUS) && newBaseLine) - { - return false; - } - return isSpace(rec); - } - - void finishGlyph() - { - mLastGlyph = mLastCandidate; - mLastUni = mLastUniCandidate; - mLastPaint = mLastPaintCandidate; - } - - const SkIRect& getArea() const { - return mArea; - } - - /* called only while the picture is parsed */ - SkUnichar getUniChar(const SkBounder::GlyphRec& rec) - { - SkUnichar unichar; - SkPaint::TextEncoding save = mPaint.getTextEncoding(); - mPaint.setTextEncoding(SkPaint::kUTF16_TextEncoding); - mPaint.glyphsToUnichars(&rec.fGlyphID, 1, &unichar); - mPaint.setTextEncoding(save); - return unichar; - } - - bool isSpace(const SkBounder::GlyphRec& rec) - { - if (mLastGlyph.fGlyphID == static_cast<uint16_t>(-1)) - return true; - DBG_NAV_LOGD("mLastGlyph=((%g, %g),(%g, %g), %d)" - " rec=((%g, %g),(%g, %g), %d) mLastUni=0x%04x '%c'", - SkFixedToScalar(mLastGlyph.fLSB.fX), - SkFixedToScalar(mLastGlyph.fLSB.fY), - SkFixedToScalar(mLastGlyph.fRSB.fX), - SkFixedToScalar(mLastGlyph.fRSB.fY), mLastGlyph.fGlyphID, - SkFixedToScalar(rec.fLSB.fX), SkFixedToScalar(rec.fLSB.fY), - SkFixedToScalar(rec.fRSB.fX), SkFixedToScalar(rec.fRSB.fY), - rec.fGlyphID, - mLastUni, mLastUni && mLastUni < 0x7f ? mLastUni : '?'); - bool newBaseLine = mLastGlyph.fLSB.fY != rec.fLSB.fY; - if (newBaseLine) - return true; - SkFixed gapOne = mLastGlyph.fLSB.fX - rec.fRSB.fX; - SkFixed gapTwo = rec.fLSB.fX - mLastGlyph.fRSB.fX; - if (gapOne < 0 && gapTwo < 0) - return false; // overlaps - const SkBounder::GlyphRec& first = mLastGlyph.fLSB.fX < rec.fLSB.fX - ? mLastGlyph : rec; - const SkBounder::GlyphRec& second = mLastGlyph.fLSB.fX < rec.fLSB.fX - ? rec : mLastGlyph; - uint16_t firstGlyph = first.fGlyphID; - SkScalar firstWidth = mLastPaint.measureText(&firstGlyph, sizeof(firstGlyph)); - SkFixed ceilWidth = SkIntToFixed(SkScalarCeil(firstWidth)); - SkFixed posNoSpace = first.fLSB.fX + ceilWidth; - SkFixed ceilSpace = SkIntToFixed(SkFixedCeil(minSpaceWidth(mLastPaint))); - SkFixed posWithSpace = posNoSpace + ceilSpace; - SkFixed diffNoSpace = SkFixedAbs(second.fLSB.fX - posNoSpace); - SkFixed diffWithSpace = SkFixedAbs(second.fLSB.fX - posWithSpace); - DBG_NAV_LOGD("second=%g width=%g (%g) noSpace=%g (%g) withSpace=%g (%g)" - " fontSize=%g", - SkFixedToScalar(second.fLSB.fX), - firstWidth, SkFixedToScalar(ceilWidth), - SkFixedToScalar(posNoSpace), SkFixedToScalar(diffNoSpace), - SkFixedToScalar(posWithSpace), SkFixedToScalar(diffWithSpace), - mLastPaint.getTextSize()); - return diffWithSpace <= diffNoSpace; - } - - SkFixed minSpaceWidth(SkPaint& paint) - { - if (mMinSpaceWidth == SK_FixedMax) { - SkPaint::TextEncoding save = paint.getTextEncoding(); - paint.setTextEncoding(SkPaint::kUTF8_TextEncoding); - SkScalar width = paint.measureText(" ", 1); - mMinSpaceWidth = SkScalarToFixed(width * mMatrix.getScaleX()); - paint.setTextEncoding(save); - DBG_NAV_LOGV("width=%g matrix sx/sy=(%g, %g) tx/ty=(%g, %g)" - " mMinSpaceWidth=%g", width, - mMatrix.getScaleX(), mMatrix.getScaleY(), - mMatrix.getTranslateX(), mMatrix.getTranslateY(), - SkFixedToScalar(mMinSpaceWidth)); - } - return mMinSpaceWidth; - } - - void recordGlyph(const SkBounder::GlyphRec& rec) - { - mLastCandidate = rec; - mLastUniCandidate = getUniChar(rec); - mLastPaintCandidate = mPaint; - } - - void reset() - { - mMinSpaceWidth = SK_FixedMax; // mark as uninitialized - mBase = mBottom = mTop = INT_MAX; // mark as uninitialized - } - - void set(CommonCheck& check) - { - mLastGlyph = check.mLastGlyph; - mLastUni = check.mLastUni; - mMatrix = check.mMatrix; - mLastPaint = check.mLastPaint; - reset(); - } - - void setGlyph(CommonCheck& check) - { - mLastGlyph = check.mLastGlyph; - mLastUni = check.mLastUni; - mLastPaint = check.mLastPaint; - } - - void setUp(const SkPaint& paint, const SkMatrix& matrix, SkScalar y, - const void* text) - { - mMatrix = matrix; - mPaint = paint; - mText = static_cast<const uint16_t*>(text); - mY = y; - reset(); - } - - /* called only while the picture is parsed */ - int top() { - if (mTop == INT_MAX) { - SkPoint result; - SkPaint::FontMetrics metrics; - mPaint.getFontMetrics(&metrics); - mMatrix.mapXY(0, metrics.fAscent + mY, &result); - mTop = SkScalarFloor(result.fY); - } - return mTop; - } - -#if DEBUG_NAV_UI - // make current (possibily uncomputed) value visible for debugging - int topDebug() const - { - return mTop; - } -#endif - -protected: - SkIRect mArea; - SkBounder::GlyphRec mLastCandidate; - SkBounder::GlyphRec mLastGlyph; - SkPaint mLastPaint; // available after picture has been parsed - SkPaint mLastPaintCandidate; // associated with candidate glyph - SkUnichar mLastUni; - SkUnichar mLastUniCandidate; - SkMatrix mMatrix; - SkPaint mPaint; // only set up while the picture is parsed - const uint16_t* mText; - SkScalar mY; -private: - int mBase; - int mBottom; - SkFixed mMinSpaceWidth; - int mTop; - friend class EdgeCheck; -}; - -// generate the limit area for the new selection -class LineCheck : public CommonCheck { -public: - LineCheck(int x, int y, const SkIRect& area) - : INHERITED(area) - , mX(x) - , mY(y) - , mInBetween(false) - { - mLast.setEmpty(); - } - - void finish(const SkRegion& selectedRgn) - { - if (!mParagraphs.count() && mLast.isEmpty()) - return; - processLine(); - bool above = false; - bool below = false; - bool selected = false; - SkRegion localRgn(selectedRgn); - localRgn.translate(-mArea.fLeft, -mArea.fTop, &localRgn); - DBG_NAV_LOGD("localRgn=(%d,%d,%d,%d)", - localRgn.getBounds().fLeft, localRgn.getBounds().fTop, - localRgn.getBounds().fRight, localRgn.getBounds().fBottom); - for (int index = 0; index < mParagraphs.count(); index++) { - const SkIRect& rect = mParagraphs[index]; - bool localSelected = localRgn.intersects(rect); - DBG_NAV_LOGD("[%d] rect=(%d,%d,%d,%d)", index, rect.fLeft, rect.fTop, - rect.fRight, rect.fBottom); - if (localSelected) { - DBG_NAV_LOGD("[%d] localSelected=true", index); - *mSelected.append() = rect; - } - if (rect.fRight <= mX || rect.fLeft >= mX) - continue; - if (mY > rect.fBottom) { - below = true; - selected |= localSelected; - DBG_NAV_LOGD("[%d] below=true localSelected=%s", index, - localSelected ? "true" : "false"); - } - if (mY < rect.fTop) { - above = true; - selected |= localSelected; - DBG_NAV_LOGD("[%d] above=true localSelected=%s", index, - localSelected ? "true" : "false"); - } - } - DBG_NAV_LOGD("mX=%d mY=%d above=%s below=%s selected=%s", - mX, mY, above ? "true" : "false", below ? "true" : "false", - selected ? "true" : "false"); - mInBetween = above && below && selected; - } - - bool inBetween() const - { - return mInBetween; - } - - bool inColumn(const SkIRect& test) const - { - for (int index = 0; index < mSelected.count(); index++) { - const SkIRect& rect = mSelected[index]; - if (rect.fRight > test.fLeft && rect.fLeft < test.fRight) - return true; - } - return false; - } - - bool inColumn(int x, int y) const - { - for (int index = 0; index < mSelected.count(); index++) { - const SkIRect& rect = mSelected[index]; - if (rect.contains(x, y)) - return true; - } - return false; - } - - virtual bool onIRect(const SkIRect& rect) - { - SkIRect bounds; - bounds.set(rect.fLeft, top(), rect.fRight, bottom()); - // assume that characters must be consecutive to describe spaces - // (i.e., don't join rects drawn at different times) - if (bounds.fTop != mLast.fTop || bounds.fBottom != mLast.fBottom - || bounds.fLeft > mLast.fRight + minSpaceWidth(mPaint) - || bounds.fLeft < mLast.fLeft) { - processLine(); - mLast = bounds; - } else - mLast.join(bounds); - return false; - } - - void processLine() - { - // assume line spacing of 1.5 - int lineHeight = bottom() - top(); - mLast.inset(0, -lineHeight >> 1); - // collect arrays of rectangles making up glyphs below or above this one - for (int index = 0; index < mParagraphs.count(); index++) { - SkIRect& rect = mParagraphs[index]; - if (SkIRect::Intersects(rect, mLast)) { - rect.join(mLast); - return; - } - } - *mParagraphs.append() = mLast; - } - -protected: - int mX; - int mY; - SkIRect mLast; - SkTDArray<SkIRect> mParagraphs; - SkTDArray<SkIRect> mSelected; - bool mInBetween; -private: - typedef CommonCheck INHERITED; -}; - -class SelectText::FirstCheck : public CommonCheck { -public: - FirstCheck(int x, int y, const SkIRect& area) - : INHERITED(area) - , mLineCheck(0) - , mFocusX(x - area.fLeft) - , mFocusY(y - area.fTop) - , mBestInColumn(false) - , mRecordGlyph(false) - { - reset(); - } - - const SkIRect& adjustedBounds(int* base) - { - *base = mBestBase + mArea.fTop; - mBestBounds.offset(mArea.fLeft, mArea.fTop); - DBG_NAV_LOGD("FirstCheck mBestBounds:(%d, %d, %d, %d) mTop=%d mBottom=%d", - mBestBounds.fLeft, mBestBounds.fTop, mBestBounds.fRight, - mBestBounds.fBottom, topDebug(), bottomDebug()); - return mBestBounds; - } - - int focusX() const { return mFocusX; } - int focusY() const { return mFocusY; } - - virtual bool onIRectGlyph(const SkIRect& rect, - const SkBounder::GlyphRec& rec) - { - /* compute distance from rectangle center. - * centerX = (rect.L + rect.R) / 2 - * multiply centerX and comparison x by 2 to retain better precision - */ - SkIRect testBounds = {rect.fLeft, top(), rect.fRight, bottom()}; - // dx and dy are the distances from the tested edge - // The edge distance is paramount if the test point is far away - int dx = std::max(0, std::max(testBounds.fLeft - mFocusX, - mFocusX - testBounds.fRight)); - int dy = std::max(0, std::max(testBounds.fTop - mFocusY, - mFocusY - testBounds.fBottom)); - bool testInColumn = false; - bool inBetween = false; - bool inFocus = false; - if (mLineCheck) { - testInColumn = mLineCheck->inColumn(testBounds); - inBetween = mLineCheck->inBetween(); - inFocus = mLineCheck->inColumn(mFocusX, mFocusY); - } -#ifdef EXTRA_NOISY_LOGGING - if (dy < 10) { - SkUnichar ch = getUniChar(rec); - DBG_NAV_LOGD("FC dx/y=%d,%d mDx/y=%d,%d test=%d,%d,%d,%d" - " best=%d,%d,%d,%d bestIn=%s tween=%s testIn=%s focus=%s ch=%c", - dx, dy, mDx, mDy, - testBounds.fLeft, testBounds.fTop, testBounds.fRight, - testBounds.fBottom, mBestBounds.fLeft, mBestBounds.fTop, - mBestBounds.fRight, mBestBounds.fBottom, - mBestInColumn ? "true" : "false", inBetween ? "true" : "false", - testInColumn ? "true" : "false", inFocus ? "true" : "false", - ch < 0x7f ? ch : '?'); - } -#endif - if ((mBestInColumn || inBetween) && !testInColumn) { -#ifdef EXTRA_NOISY_LOGGING - if (dy < 10) DBG_NAV_LOG("FirstCheck reject column"); -#endif - return false; - } - bool ignoreColumn = mBestInColumn == testInColumn || !inFocus; - if (ignoreColumn && dy > 0 && (mDy < dy - || (mDy == dy && dx > 0 && mDx <= dx))) { -#ifdef EXTRA_NOISY_LOGGING - if (dy < 10) DBG_NAV_LOG("FirstCheck reject edge"); -#endif - return false; - } - // cx and cy are the distances from the tested center - // The center distance is used when the test point is over the text - int cx = std::abs(((testBounds.fLeft + testBounds.fRight) >> 1) - - mFocusX); - int cy = std::abs(((testBounds.fTop + testBounds.fBottom) >> 1) - - mFocusY); - if (ignoreColumn && dy == 0 && mDy == 0) { - if (mCy < cy) { -#ifdef EXTRA_NOISY_LOGGING - DBG_NAV_LOGD("FirstCheck reject cy=%d mCy=%d", cy, mCy); -#endif - return false; - } - if (mCy == cy) { - if (dx == 0 && mDx == 0) { - if (mCx < cx) { -#ifdef EXTRA_NOISY_LOGGING - DBG_NAV_LOGD("FirstCheck reject cx=%d mCx=%d", cx, mCx); -#endif - return false; - } - } else if (dx > 0 && mDx <= dx) { -#ifdef EXTRA_NOISY_LOGGING - DBG_NAV_LOGD("FirstCheck reject dx=%d mDx=%d", dx, mDx); -#endif - return false; - } - } - } -#ifdef EXTRA_NOISY_LOGGING - if (dy < 10) { - DBG_NAV_LOGD("FirstCheck cx/y=(%d,%d)", cx, cy); - } -#endif - mBestBase = base(); - mBestBounds = testBounds; - mBestInColumn = testInColumn; -#ifndef EXTRA_NOISY_LOGGING - if (dy < 10 && dx < 10) -#endif - { -#if DEBUG_NAV_UI - SkUnichar ch = getUniChar(rec); -#endif - DBG_NAV_LOGD("FirstCheck dx/y=(%d,%d) mFocus=(%d,%d)" - " mBestBounds={%d,%d,r=%d,b=%d} inColumn=%s ch=%c", - dx, dy, mFocusX, mFocusY, - mBestBounds.fLeft, mBestBounds.fTop, - mBestBounds.fRight, mBestBounds.fBottom, - mBestInColumn ? "true" : "false", ch < 0x7f ? ch : '?'); - } - mCx = cx; - mCy = cy; - mDx = dx; - mDy = dy; - if (mRecordGlyph) - recordGlyph(rec); - return false; - } - - void reset() - { - mBestBounds.setEmpty(); - mDx = mDy = mCx = mCy = INT_MAX; - } - - void setLines(const LineCheck* lineCheck) { mLineCheck = lineCheck; } - void setRecordGlyph() { mRecordGlyph = true; } - -protected: - const LineCheck* mLineCheck; - int mBestBase; - SkIRect mBestBounds; - int mCx; - int mCy; - int mDx; - int mDy; - int mFocusX; - int mFocusY; - bool mBestInColumn; - bool mRecordGlyph; -private: - typedef CommonCheck INHERITED; -}; - -class SelectText::EdgeCheck : public SelectText::FirstCheck { -public: - EdgeCheck(int x, int y, const SkIRect& area, CommonCheck& last, bool left) - : INHERITED(x, y, area) - , mLast(area) - , mLeft(left) - { - mLast.set(last); // CommonCheck::set() - setGlyph(last); - } - - bool adjacent() - { - return !mLast.isSpace(mLastGlyph); - } - - const SkIRect& bestBounds(int* base) - { - *base = mBestBase; - return mBestBounds; - } - - virtual bool onIRectGlyph(const SkIRect& rect, - const SkBounder::GlyphRec& rec) - { - int dx = mLeft ? mFocusX - rect.fRight : rect.fLeft - mFocusX; - int dy = ((top() + bottom()) >> 1) - mFocusY; - dx = abs(dx); - dy = abs(dy); - if (mLeft ? mFocusX <= rect.fLeft : mFocusX >= rect.fRight) { - if (dx <= 10 && dy <= 10) { - DBG_NAV_LOGD("EdgeCheck fLeft=%d fRight=%d mFocusX=%d dx=%d dy=%d", - rect.fLeft, rect.fRight, mFocusX, dx, dy); - } - return false; - } - if (mDy > dy || (mDy == dy && mDx > dx)) { - if (rec.fLSB == mLastGlyph.fLSB && rec.fRSB == mLastGlyph.fRSB) { - DBG_NAV_LOGD("dup rec.fLSB.fX=%g rec.fRSB.fX=%g", - SkFixedToScalar(rec.fLSB.fX), SkFixedToScalar(rec.fRSB.fX)); - return false; - } - recordGlyph(rec); - mDx = dx; - mDy = dy; - mBestBase = base(); - mBestBounds.set(rect.fLeft, top(), rect.fRight, bottom()); - if (dx <= 10 && dy <= 10) { - DBG_NAV_LOGD("EdgeCheck mBestBounds={%d,%d,r=%d,b=%d} dx/y=(%d, %d)", - mBestBounds.fLeft, mBestBounds.fTop, - mBestBounds.fRight, mBestBounds.fBottom, dx, dy); - } - } - return false; - } - - void shiftStart(SkIRect bounds) - { - DBG_NAV_LOGD("EdgeCheck mFocusX=%d mLeft=%s bounds.fLeft=%d bounds.fRight=%d", - mFocusX, mLeft ? "true" : "false", bounds.fLeft, bounds.fRight); - reset(); - mFocusX = mLeft ? bounds.fLeft : bounds.fRight; - mLast.set(*this); // CommonCheck::set() - } - -protected: - CommonCheck mLast; - bool mLeft; -private: - typedef SelectText::FirstCheck INHERITED; -}; - -class FindFirst : public CommonCheck { -public: - FindFirst(const SkIRect& area) - : INHERITED(area) - { - mBestBounds.set(area.width(), area.height(), area.width(), area.height()); - } - - const SkIRect& bestBounds(int* base) - { - *base = mBestBase; - return mBestBounds; - } - - virtual bool onIRect(const SkIRect& rect) - { - if (mBestBounds.isEmpty()) { - mBestBase = base(); - mBestBounds.set(rect.fLeft, top(), rect.fRight, bottom()); - } - return false; - } - -protected: - int mBestBase; - SkIRect mBestBounds; -private: - typedef CommonCheck INHERITED; -}; - -class FindLast : public FindFirst { -public: - FindLast(const SkIRect& area) - : INHERITED(area) - { - mBestBounds.setEmpty(); - } - - virtual bool onIRect(const SkIRect& rect) - { - mBestBase = base(); - mBestBounds.set(rect.fLeft, top(), rect.fRight, bottom()); - return false; - } - -private: - typedef FindFirst INHERITED; -}; - -static bool baseLinesAgree(const SkIRect& rectA, int baseA, - const SkIRect& rectB, int baseB) -{ - return (rectA.fTop < baseB && rectA.fBottom >= baseB) - || (rectB.fTop < baseA && rectB.fBottom >= baseA); -} - -class BuilderCheck : public CommonCheck { -protected: - enum IntersectionType { - NO_INTERSECTION, // debugging printf expects this to equal zero - LAST_INTERSECTION, // debugging printf expects this to equal one - WAIT_FOR_INTERSECTION - }; - - BuilderCheck(const SkIRect& start, int startBase, const SkIRect& end, - int endBase, const SkIRect& area) - : INHERITED(area) - , mCapture(false) - , mEnd(end) - , mEndBase(endBase) - , mStart(start) - , mStartBase(startBase) - { - mEnd.offset(-area.fLeft, -area.fTop); - mEndBase -= area.fTop; - mEndExtra.setEmpty(); - mLast.setEmpty(); - mLastBase = INT_MAX; - mSelectRect.setEmpty(); - mStart.offset(-area.fLeft, -area.fTop); - mStartBase -= area.fTop; - mStartExtra.setEmpty(); - DBG_NAV_LOGD(" mStart=(%d,%d,r=%d,b=%d) mStartBase=%d" - " mEnd=(%d,%d,r=%d,b=%d) mEndBase=%d", - mStart.fLeft, mStart.fTop, mStart.fRight, mStart.fBottom, mStartBase, - mEnd.fLeft, mEnd.fTop, mEnd.fRight, mEnd.fBottom, mEndBase); - } - - int checkFlipRect(const SkIRect& full, int fullBase) { - mCollectFull = false; - // is the text to collect between the selection top and bottom? - if (fullBase < mStart.fTop || fullBase > mEnd.fBottom) { - if (VERBOSE_LOGGING && !mLast.isEmpty()) DBG_NAV_LOGD("%s 1" - " full=(%d,%d,r=%d,b=%d) fullBase=%d" - " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d", - mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", - full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase); - return mLastIntersects; - } - // is the text to the left of the selection start? - if (baseLinesAgree(mStart, mStartBase, full, fullBase) - && full.fLeft < mStart.fLeft) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("%s 2" - " full=(%d,%d,r=%d,b=%d) fullBase=%d" - " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" - " mStart=(%d,%d,r=%d,b=%d) mStartBase=%d", - mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", - full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, - mStart.fLeft, mStart.fTop, mStart.fRight, mStart.fBottom, mStartBase); - mStartExtra.join(full); - return mLastIntersects; - } - // is the text to the right of the selection end? - if (baseLinesAgree(mEnd, mEndBase, full, fullBase) - && full.fRight > mEnd.fRight) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("%s 3" - " full=(%d,%d,r=%d,b=%d) fullBase=%d" - " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" - " mEnd=(%d,%d,r=%d,b=%d) mEndBase=%d", - mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", - full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, - mEnd.fLeft, mEnd.fTop, mEnd.fRight, mEnd.fBottom, mEndBase); - mEndExtra.join(full); - return mLastIntersects; - } - int spaceGap = SkFixedRound(minSpaceWidth(mPaint) * 3); - // should text to the left of the start be added to the selection bounds? - if (!mStartExtra.isEmpty()) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("mSelectRect=(%d,%d,r=%d,b=%d)" - " mStartExtra=(%d,%d,r=%d,b=%d)", - mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom, - mStartExtra.fLeft, mStartExtra.fTop, mStartExtra.fRight, mStartExtra.fBottom); - if (mStartExtra.fRight + spaceGap >= mStart.fLeft) - mSelectRect.join(mStartExtra); - mStartExtra.setEmpty(); - } - // should text to the right of the end be added to the selection bounds? - if (!mEndExtra.isEmpty()) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("mSelectRect=(%d,%d,r=%d,b=%d)" - " mEndExtra=(%d,%d,r=%d,b=%d)", - mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom, - mEndExtra.fLeft, mEndExtra.fTop, mEndExtra.fRight, mEndExtra.fBottom); - if (mEndExtra.fLeft - spaceGap <= mEnd.fRight) - mSelectRect.join(mEndExtra); - mEndExtra.setEmpty(); - } - bool sameBaseLine = baseLinesAgree(mLast, mLastBase, full, fullBase); - bool adjacent = (full.fLeft - mLast.fRight) < spaceGap; - // is this the first, or are there more characters on the same line? - if (mLast.isEmpty() || (sameBaseLine && adjacent)) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("WAIT_FOR_INTERSECTION" - " full=(%d,%d,r=%d,b=%d) fullBase=%d" - " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" - " mSelectRect=(%d,%d,r=%d,b=%d)", - full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, - mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom); - mLast.join(full); - mLastIntersects = SkIRect::Intersects(mLast, mSelectRect); - return WAIT_FOR_INTERSECTION; - } - if (VERBOSE_LOGGING) DBG_NAV_LOGD("%s 4" - " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" - " full=(%d,%d,r=%d,b=%d) fullBase=%d" - " mSelectRect=(%d,%d,r=%d,b=%d)" - " mStartExtra=(%d,%d,r=%d,b=%d)" - " mEndExtra=(%d,%d,r=%d,b=%d)", - mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, - full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, - mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom, - mStartExtra.fLeft, mStartExtra.fTop, mStartExtra.fRight, mStartExtra.fBottom, - mEndExtra.fLeft, mEndExtra.fTop, mEndExtra.fRight, mEndExtra.fBottom); - // after the caller determines what to do with the last collection, - // start the collection over with full and fullBase. - mCollectFull = true; - return mLastIntersects; - } - - bool resetLast(const SkIRect& full, int fullBase) - { - if (mCollectFull) { - mLast = full; - mLastBase = fullBase; - mLastIntersects = SkIRect::Intersects(mLast, mSelectRect); - } else { - mLast.setEmpty(); - mLastBase = INT_MAX; - mLastIntersects = false; - } - return mCollectFull; - } - - void setFlippedState() - { - mSelectRect = mStart; - mSelectRect.join(mEnd); - DBG_NAV_LOGD("mSelectRect=(%d,%d,r=%d,b=%d)", - mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom); - mLast.setEmpty(); - mLastBase = INT_MAX; - mLastIntersects = NO_INTERSECTION; - } - - bool mCapture; - bool mCollectFull; - SkIRect mEnd; - int mEndBase; - SkIRect mEndExtra; - bool mFlipped; - SkIRect mLast; - int mLastBase; - int mLastIntersects; - SkIRect mSelectRect; - SkIRect mStart; - SkIRect mStartExtra; - int mStartBase; -private: - typedef CommonCheck INHERITED; - -}; - -class MultilineBuilder : public BuilderCheck { -public: - MultilineBuilder(const SkIRect& start, int startBase, const SkIRect& end, - int endBase, const SkIRect& area, SkRegion* region) - : INHERITED(start, startBase, end, endBase, area) - , mSelectRegion(region) - { - mFlipped = false; - } - - void addLastToRegion() { - if (VERBOSE_LOGGING) DBG_NAV_LOGD(" mLast=(%d,%d,r=%d,b=%d)", - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom); - mSelectRegion->op(mLast, SkRegion::kUnion_Op); - } - - void finish() { - if (!mFlipped || !mLastIntersects) - return; - addLastToRegion(); - } - - // return true if capture end was not found after capture begin - bool flipped() { - DBG_NAV_LOGD("flipped=%s", mCapture ? "true" : "false"); - if (!mCapture) - return false; - mFlipped = true; - setFlippedState(); - mSelectRegion->setEmpty(); - return true; - } - - virtual bool onIRect(const SkIRect& rect) { - SkIRect full; - full.set(rect.fLeft, top(), rect.fRight, bottom()); - int fullBase = base(); - if (mFlipped) { - int intersectType = checkFlipRect(full, fullBase); - if (intersectType == LAST_INTERSECTION) - addLastToRegion(); - if (intersectType != WAIT_FOR_INTERSECTION) - resetLast(full, fullBase); - return false; - } - if (full == mStart) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("full == mStart full=(%d,%d,r=%d,b=%d)", - full.fLeft, full.fTop, full.fRight, full.fBottom); - mCapture = true; - } - if (mCapture) { - bool sameLines = baseLinesAgree(mLast, mLastBase, full, fullBase); - if (sameLines) - mLast.join(full); - if (!sameLines || full == mEnd) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("finish mLast=(%d,%d,r=%d,b=%d)", - mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom); - addLastToRegion(); - mLast = full; - mLastBase = fullBase; - } - } - if (full == mEnd) { - if (VERBOSE_LOGGING) DBG_NAV_LOGD("full == mEnd full=(%d,%d,r=%d,b=%d)", - full.fLeft, full.fTop, full.fRight, full.fBottom); - mCapture = false; - if (full == mStart) - addLastToRegion(); - } - return false; - } - -protected: - SkRegion* mSelectRegion; -private: - typedef BuilderCheck INHERITED; -}; - -static inline bool compareBounds(const SkIRect* first, const SkIRect* second) -{ - return first->fTop < second->fTop; -} - -class TextExtractor : public BuilderCheck { -public: - TextExtractor(const SkIRect& start, int startBase, const SkIRect& end, - int endBase, const SkIRect& area, bool flipped) - : INHERITED(start, startBase, end, endBase, area) - , mSelectStartIndex(-1) - , mSkipFirstSpace(true) // don't start with a space - { - mFlipped = flipped; - if (flipped) - setFlippedState(); - } - - void addCharacter(const SkBounder::GlyphRec& rec) - { - if (mSelectStartIndex < 0) - mSelectStartIndex = mSelectText.count(); - if (!mSkipFirstSpace) { - if (addNewLine(rec)) { - DBG_NAV_LOG("write new line"); - *mSelectText.append() = '\n'; - *mSelectText.append() = '\n'; - } else if (addSpace(rec)) { - DBG_NAV_LOG("write space"); - *mSelectText.append() = ' '; - } - } else - mSkipFirstSpace = false; - recordGlyph(rec); - finishGlyph(); - if (VERBOSE_LOGGING) DBG_NAV_LOGD("glyphID=%d uni=%d '%c'", rec.fGlyphID, - mLastUni, mLastUni && mLastUni < 0x7f ? mLastUni : '?'); - if (mLastUni) { - uint16_t chars[2]; - size_t count = SkUTF16_FromUnichar(mLastUni, chars); - *mSelectText.append() = chars[0]; - if (count == 2) - *mSelectText.append() = chars[1]; - } - } - - void addLast() - { - *mSelectBounds.append() = mLast; - *mSelectStart.append() = mSelectStartIndex; - *mSelectEnd.append() = mSelectText.count(); - } - - /* Text characters are collected before it's been determined that the - characters are part of the selection. The bounds describe valid parts - of the selection, but the bounds are out of order. - - This sorts the characters by sorting the bounds, then copying the - characters that were captured. - */ - void finish() - { - if (mLastIntersects) - addLast(); - Vector<SkIRect*> sortedBounds; - SkTDArray<uint16_t> temp; - int index; - DBG_NAV_LOGD("mSelectBounds.count=%d text=%d", mSelectBounds.count(), - mSelectText.count()); - for (index = 0; index < mSelectBounds.count(); index++) - sortedBounds.append(&mSelectBounds[index]); - std::sort(sortedBounds.begin(), sortedBounds.end(), compareBounds); - int lastEnd = -1; - for (index = 0; index < mSelectBounds.count(); index++) { - int order = sortedBounds[index] - &mSelectBounds[0]; - int start = mSelectStart[order]; - int end = mSelectEnd[order]; - DBG_NAV_LOGD("order=%d start=%d end=%d top=%d", order, start, end, - mSelectBounds[order].fTop); - int count = temp.count(); - if (count > 0 && temp[count - 1] != '\n' && start != lastEnd) { - // always separate paragraphs when original text is out of order - DBG_NAV_LOG("write new line"); - *temp.append() = '\n'; - *temp.append() = '\n'; - } - temp.append(end - start, &mSelectText[start]); - lastEnd = end; - } - mSelectText.swap(temp); - } - - virtual bool onIRectGlyph(const SkIRect& rect, - const SkBounder::GlyphRec& rec) - { - SkIRect full; - full.set(rect.fLeft, top(), rect.fRight, bottom()); - int fullBase = base(); - if (mFlipped) { - int intersectType = checkFlipRect(full, fullBase); - if (WAIT_FOR_INTERSECTION == intersectType) - addCharacter(rec); // may not be copied - else { - if (LAST_INTERSECTION == intersectType) - addLast(); - else - mSkipFirstSpace = true; - mSelectStartIndex = -1; - if (resetLast(full, fullBase)) - addCharacter(rec); // may not be copied - } - return false; - } - if (full == mStart) - mCapture = true; - if (mCapture) - addCharacter(rec); - else - mSkipFirstSpace = true; - if (full == mEnd) - mCapture = false; - return false; - } - - WTF::String text() { - if (mFlipped) - finish(); - // the text has been copied in visual order. Reverse as needed if - // result contains right-to-left characters. - const uint16_t* start = mSelectText.begin(); - const uint16_t* end = mSelectText.end(); - while (start < end) { - SkUnichar ch = SkUTF16_NextUnichar(&start); - WTF::Unicode::Direction charDirection = WTF::Unicode::direction(ch); - if (WTF::Unicode::RightToLeftArabic == charDirection - || WTF::Unicode::RightToLeft == charDirection) { - WebCore::ReverseBidi(mSelectText.begin(), mSelectText.count()); - break; - } - } - return WTF::String(mSelectText.begin(), mSelectText.count()); - } - -protected: - SkIRect mEmpty; - SkTDArray<SkIRect> mSelectBounds; - SkTDArray<int> mSelectEnd; - SkTDArray<int> mSelectStart; - int mSelectStartIndex; - SkTDArray<uint16_t> mSelectText; - bool mSkipFirstSpace; -private: - typedef BuilderCheck INHERITED; -}; - -class TextCanvas : public ParseCanvas { -public: - - TextCanvas(CommonCheck* bounder) - : mBounder(*bounder) { - setBounder(bounder); - SkBitmap bitmap; - const SkIRect& area = bounder->getArea(); - bitmap.setConfig(SkBitmap::kARGB_8888_Config, area.width(), - area.height()); - setBitmapDevice(bitmap); - translate(SkIntToScalar(-area.fLeft), SkIntToScalar(-area.fTop)); -#ifdef DEBUG_NAV_UI - const SkIRect& clip = getTotalClip().getBounds(); - const SkMatrix& matrix = getTotalMatrix(); - DBG_NAV_LOGD("bitmap=(%d,%d) clip=(%d,%d,%d,%d) matrix=(%g,%g)", - bitmap.width(), bitmap.height(), clip.fLeft, clip.fTop, - clip.fRight, clip.fBottom, matrix.getTranslateX(), matrix.getTranslateY()); -#endif - } - - virtual void drawPaint(const SkPaint& paint) { - } - - virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[], - const SkPaint& paint) { - } - - virtual void drawRect(const SkRect& rect, const SkPaint& paint) { - } - - virtual void drawPath(const SkPath& path, const SkPaint& paint) { - } - - virtual void commonDrawBitmap(const SkBitmap& bitmap, const SkIRect* rect, - const SkMatrix& matrix, const SkPaint& paint) { - } - - virtual void drawSprite(const SkBitmap& bitmap, int left, int top, - const SkPaint* paint = NULL) { - } - - virtual void drawText(const void* text, size_t byteLength, SkScalar x, - SkScalar y, const SkPaint& paint) { - mBounder.setUp(paint, getTotalMatrix(), y, text); - INHERITED::drawText(text, byteLength, x, y, paint); - } - - virtual void drawPosTextH(const void* text, size_t byteLength, - const SkScalar xpos[], SkScalar constY, - const SkPaint& paint) { - mBounder.setUp(paint, getTotalMatrix(), constY, text); - INHERITED::drawPosTextH(text, byteLength, xpos, constY, paint); - } - - virtual void drawVertices(VertexMode vmode, int vertexCount, - const SkPoint vertices[], const SkPoint texs[], - const SkColor colors[], SkXfermode* xmode, - const uint16_t indices[], int indexCount, - const SkPaint& paint) { - } - - CommonCheck& mBounder; -private: - typedef ParseCanvas INHERITED; -}; - -static bool buildSelection(const SkPicture& picture, const SkIRect& area, - const SkIRect& selStart, int startBase, - const SkIRect& selEnd, int endBase, SkRegion* region) -{ - DBG_NAV_LOGD("area=(%d, %d, %d, %d) selStart=(%d, %d, %d, %d)" - " selEnd=(%d, %d, %d, %d)", - area.fLeft, area.fTop, area.fRight, area.fBottom, - selStart.fLeft, selStart.fTop, selStart.fRight, selStart.fBottom, - selEnd.fLeft, selEnd.fTop, selEnd.fRight, selEnd.fBottom); - MultilineBuilder builder(selStart, startBase, selEnd, endBase, area, region); - TextCanvas checker(&builder); - checker.drawPicture(const_cast<SkPicture&>(picture)); - bool flipped = builder.flipped(); - if (flipped) { - TextCanvas checker(&builder); - checker.drawPicture(const_cast<SkPicture&>(picture)); - } - builder.finish(); - region->translate(area.fLeft, area.fTop); - return flipped; -} - -static SkIRect findFirst(const SkPicture& picture, int* base) -{ - SkIRect area; - area.set(0, 0, picture.width(), picture.height()); - FindFirst finder(area); - TextCanvas checker(&finder); - checker.drawPicture(const_cast<SkPicture&>(picture)); - return finder.bestBounds(base); -} - -static SkIRect findLast(const SkPicture& picture, int* base) -{ - SkIRect area; - area.set(0, 0, picture.width(), picture.height()); - FindLast finder(area); - TextCanvas checker(&finder); - checker.drawPicture(const_cast<SkPicture&>(picture)); - return finder.bestBounds(base); -} - -static WTF::String text(const SkPicture& picture, const SkIRect& area, - const SkIRect& start, int startBase, const SkIRect& end, - int endBase, bool flipped) -{ - TextExtractor extractor(start, startBase, end, endBase, area, flipped); - TextCanvas checker(&extractor); - checker.drawPicture(const_cast<SkPicture&>(picture)); - return extractor.text(); -} - -#define CONTROL_NOTCH 16 -// TODO: Now that java is the one actually drawing these, get the real values -// from the drawable itself -#define CONTROL_HEIGHT 47 -#define CONTROL_WIDTH 26 -#define CONTROL_SLOP 5 -#define STROKE_WIDTH 1.0f -#define STROKE_OUTSET 3.5f -#define STROKE_I_OUTSET 4 // (int) ceil(STROKE_OUTSET) -#define STROKE_COLOR 0x66000000 -#define OUTER_COLOR 0x33000000 -#define INNER_COLOR 0xe6aae300 - -SelectText::SelectText() - : m_controlWidth(CONTROL_WIDTH) - , m_controlHeight(CONTROL_HEIGHT) - , m_controlSlop(CONTROL_SLOP) -{ - m_picture = 0; - reset(); - SkPaint paint; - SkRect oval; - - SkPath startOuterPath; - oval.set(-CONTROL_WIDTH - STROKE_OUTSET, CONTROL_NOTCH - STROKE_OUTSET, - -CONTROL_WIDTH + STROKE_OUTSET, CONTROL_NOTCH + STROKE_OUTSET); - startOuterPath.arcTo(oval, 180, 45, true); - oval.set(-STROKE_OUTSET, -STROKE_OUTSET, STROKE_OUTSET, STROKE_OUTSET); - startOuterPath.arcTo(oval, 180 + 45, 135, false); - oval.set(-STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, - STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); - startOuterPath.arcTo(oval, 0, 90, false); - oval.set(-CONTROL_WIDTH - STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, - -CONTROL_WIDTH + STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); - startOuterPath.arcTo(oval, 90, 90, false); - startOuterPath.close(); - SkPath startInnerPath; - startInnerPath.moveTo(-CONTROL_WIDTH, CONTROL_NOTCH); - startInnerPath.lineTo(-CONTROL_WIDTH, CONTROL_HEIGHT); - startInnerPath.lineTo(0, CONTROL_HEIGHT); - startInnerPath.lineTo(0, 0); - startInnerPath.close(); - startOuterPath.addPath(startInnerPath, 0, 0); - - SkCanvas* canvas = m_startControl.beginRecording( - CONTROL_WIDTH + STROKE_OUTSET * 2, - CONTROL_HEIGHT + STROKE_OUTSET * 2); - paint.setAntiAlias(true); - paint.setColor(INNER_COLOR); - paint.setStyle(SkPaint::kFill_Style); - canvas->drawPath(startInnerPath, paint); - paint.setColor(OUTER_COLOR); - canvas->drawPath(startOuterPath, paint); - paint.setStyle(SkPaint::kStroke_Style); - paint.setColor(STROKE_COLOR); - paint.setStrokeWidth(STROKE_WIDTH); - canvas->drawPath(startInnerPath, paint); - m_startControl.endRecording(); - - SkPath endOuterPath; - oval.set(-STROKE_OUTSET, -STROKE_OUTSET, STROKE_OUTSET, STROKE_OUTSET); - endOuterPath.arcTo(oval, 180, 135, true); - oval.set(CONTROL_WIDTH - STROKE_OUTSET, CONTROL_NOTCH - STROKE_OUTSET, - CONTROL_WIDTH + STROKE_OUTSET, CONTROL_NOTCH + STROKE_OUTSET); - endOuterPath.arcTo(oval, 360 - 45, 45, false); - oval.set(CONTROL_WIDTH - STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, - CONTROL_WIDTH + STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); - endOuterPath.arcTo(oval, 0, 90, false); - oval.set(-STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, - STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); - endOuterPath.arcTo(oval, 90, 90, false); - startOuterPath.close(); - SkPath endInnerPath; - endInnerPath.moveTo(0, 0); - endInnerPath.lineTo(0, CONTROL_HEIGHT); - endInnerPath.lineTo(CONTROL_WIDTH, CONTROL_HEIGHT); - endInnerPath.lineTo(CONTROL_WIDTH, CONTROL_NOTCH); - endInnerPath.close(); - endOuterPath.addPath(endInnerPath, 0, 0); - - canvas = m_endControl.beginRecording(CONTROL_WIDTH + STROKE_OUTSET * 2, - CONTROL_HEIGHT + STROKE_OUTSET * 2); - paint.setColor(INNER_COLOR); - paint.setStyle(SkPaint::kFill_Style); - canvas->drawPath(endInnerPath, paint); - paint.setColor(OUTER_COLOR); - canvas->drawPath(endOuterPath, paint); - paint.setStyle(SkPaint::kStroke_Style); - paint.setColor(STROKE_COLOR); - paint.setStrokeWidth(STROKE_WIDTH); - canvas->drawPath(endInnerPath, paint); - m_endControl.endRecording(); -} - -SelectText::~SelectText() -{ - SkSafeUnref(m_picture); -} - -void SelectText::draw(SkCanvas* canvas, LayerAndroid* layer, IntRect* inval) -{ - if (m_layerId != layer->uniqueId()) - return; - // reset m_picture to match m_layerId - SkSafeUnref(m_picture); - m_picture = layer->picture(); - SkSafeRef(m_picture); - DBG_NAV_LOGD("m_extendSelection=%d m_drawPointer=%d layer [%d]", - m_extendSelection, m_drawPointer, layer->uniqueId()); - if (m_extendSelection) - drawSelectionRegion(canvas, inval); - if (m_drawPointer) - drawSelectionPointer(canvas, inval); -} - -static void addInval(IntRect* inval, const SkCanvas* canvas, - const SkRect& bounds) { - const SkMatrix& matrix = canvas->getTotalMatrix(); - SkRect transformed; - matrix.mapRect(&transformed, bounds); - SkIRect iTrans; - transformed.round(&iTrans); - inval->unite(iTrans); -} - -void SelectText::drawSelectionPointer(SkCanvas* canvas, IntRect* inval) -{ - SkPath path; - if (m_extendSelection) - getSelectionCaret(&path); - else - getSelectionArrow(&path); - SkPixelXorXfermode xorMode(SK_ColorWHITE); - SkPaint paint; - paint.setAntiAlias(true); - paint.setStyle(SkPaint::kStroke_Style); - paint.setColor(SK_ColorBLACK); - if (m_extendSelection) - paint.setXfermode(&xorMode); - else - paint.setStrokeWidth(SK_Scalar1 * 2); - int sc = canvas->save(); - canvas->scale(m_inverseScale, m_inverseScale); - canvas->translate(m_selectX, m_selectY); - canvas->drawPath(path, paint); - if (!m_extendSelection) { - paint.setStyle(SkPaint::kFill_Style); - paint.setColor(SK_ColorWHITE); - canvas->drawPath(path, paint); - } - SkRect bounds = path.getBounds(); - bounds.inset(-SK_Scalar1 * 2, -SK_Scalar1 * 2); // stroke width - addInval(inval, canvas, bounds); - canvas->restoreToCount(sc); -} - -static void addStart(SkRegion* diff, const SkIRect& rect) -{ - SkIRect bounds; - bounds.set(rect.fLeft - CONTROL_WIDTH - STROKE_I_OUTSET, - rect.fBottom - STROKE_I_OUTSET, rect.fLeft + STROKE_I_OUTSET, - rect.fBottom + CONTROL_HEIGHT + STROKE_I_OUTSET); - diff->op(bounds, SkRegion::kUnion_Op); -} - -static void addEnd(SkRegion* diff, const SkIRect& rect) -{ - SkIRect bounds; - bounds.set(rect.fRight - STROKE_I_OUTSET, rect.fBottom - STROKE_I_OUTSET, - rect.fRight + CONTROL_WIDTH + STROKE_I_OUTSET, - rect.fBottom + CONTROL_HEIGHT + STROKE_I_OUTSET); - diff->op(bounds, SkRegion::kUnion_Op); -} - -void SelectText::getSelectionRegion(const IntRect& vis, SkRegion *region, - LayerAndroid* root) -{ - SkIRect ivisBounds = vis; - ivisBounds.join(m_selStart); - ivisBounds.join(m_selEnd); - region->setEmpty(); - buildSelection(*m_picture, ivisBounds, m_selStart, m_startBase, - m_selEnd, m_endBase, region); - if (root && m_layerId) { - Layer* layer = root->findById(m_layerId); - while (layer) { - const SkPoint& pos = layer->getPosition(); - region->translate(pos.fX, pos.fY); - layer = layer->getParent(); - } - } -} - -void SelectText::drawSelectionRegion(SkCanvas* canvas, IntRect* inval) -{ - if (!m_picture) - return; - SkIRect ivisBounds = m_visibleRect; - ivisBounds.join(m_selStart); - ivisBounds.join(m_selEnd); - DBG_NAV_LOGD("m_selStart=(%d,%d,r=%d,b=%d) m_selEnd=(%d,%d,r=%d,b=%d)" - " ivisBounds=(%d,%d,r=%d,b=%d)", - m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, - m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom, - ivisBounds.fLeft, ivisBounds.fTop, ivisBounds.fRight, ivisBounds.fBottom); - if (m_lastSelRegion != m_selRegion) - m_lastSelRegion.set(m_selRegion); - SkRegion diff(m_lastSelRegion); - m_selRegion.setEmpty(); - m_flipped = buildSelection(*m_picture, ivisBounds, m_selStart, m_startBase, - m_selEnd, m_endBase, &m_selRegion); - SkPath path; - m_selRegion.getBoundaryPath(&path); - path.setFillType(SkPath::kEvenOdd_FillType); - - SkPaint paint; - paint.setAntiAlias(true); - paint.setColor(SkColorSetARGB(0x80, 0x83, 0xCC, 0x39)); - canvas->drawPath(path, paint); - // experiment to draw touchable controls that resize the selection - float scale = m_controlHeight / (float)CONTROL_HEIGHT; - canvas->save(); - canvas->translate(m_selStart.fLeft, m_selStart.fBottom); - canvas->scale(scale, scale); - canvas->drawPicture(m_startControl); - canvas->restore(); - canvas->save(); - canvas->translate(m_selEnd.fRight, m_selEnd.fBottom); - canvas->scale(scale, scale); - canvas->drawPicture(m_endControl); - canvas->restore(); - -#if DEBUG_TOUCH_HANDLES - SkRect touchHandleRect; - paint.setColor(SkColorSetARGB(0x60, 0xFF, 0x00, 0x00)); - touchHandleRect.set(0, m_selStart.fBottom, m_selStart.fLeft, 0); - touchHandleRect.fBottom = touchHandleRect.fTop + m_controlHeight; - touchHandleRect.fLeft = touchHandleRect.fRight - m_controlWidth; - canvas->drawRect(touchHandleRect, paint); - touchHandleRect.inset(-m_controlSlop, -m_controlSlop); - canvas->drawRect(touchHandleRect, paint); - touchHandleRect.set(m_selEnd.fRight, m_selEnd.fBottom, 0, 0); - touchHandleRect.fBottom = touchHandleRect.fTop + m_controlHeight; - touchHandleRect.fRight = touchHandleRect.fLeft + m_controlWidth; - canvas->drawRect(touchHandleRect, paint); - touchHandleRect.inset(-m_controlSlop, -m_controlSlop); - canvas->drawRect(touchHandleRect, paint); -#endif - - SkIRect a = diff.getBounds(); - SkIRect b = m_selRegion.getBounds(); - diff.op(m_selRegion, SkRegion::kXOR_Op); - SkIRect c = diff.getBounds(); - DBG_NAV_LOGD("old=(%d,%d,r=%d,b=%d) new=(%d,%d,r=%d,b=%d) diff=(%d,%d,r=%d,b=%d)", - a.fLeft, a.fTop, a.fRight, a.fBottom, b.fLeft, b.fTop, b.fRight, b.fBottom, - c.fLeft, c.fTop, c.fRight, c.fBottom); - DBG_NAV_LOGD("lastStart=(%d,%d,r=%d,b=%d) m_lastEnd=(%d,%d,r=%d,b=%d)", - m_lastStart.fLeft, m_lastStart.fTop, m_lastStart.fRight, m_lastStart.fBottom, - m_lastEnd.fLeft, m_lastEnd.fTop, m_lastEnd.fRight, m_lastEnd.fBottom); - if (!m_lastDrawnStart.isEmpty()) - addStart(&diff, m_lastDrawnStart); - if (m_lastStart != m_selStart) { - m_lastDrawnStart = m_lastStart; - m_lastStart = m_selStart; - } - addStart(&diff, m_selStart); - if (!m_lastDrawnEnd.isEmpty()) - addEnd(&diff, m_lastDrawnEnd); - if (m_lastEnd != m_selEnd) { - m_lastDrawnEnd = m_lastEnd; - m_lastEnd = m_selEnd; - } - addEnd(&diff, m_selEnd); - SkIRect iBounds = diff.getBounds(); - DBG_NAV_LOGD("diff=(%d,%d,r=%d,b=%d)", - iBounds.fLeft, iBounds.fTop, iBounds.fRight, iBounds.fBottom); - SkRect bounds; - bounds.set(iBounds); - addInval(inval, canvas, bounds); -} - -void SelectText::extendSelection(const IntRect& vis, int x, int y) -{ - if (!m_picture) - return; - setVisibleRect(vis); - SkIRect clipRect = m_visibleRect; - int base; - DBG_NAV_LOGD("extend x/y=%d,%d m_startOffset=%d,%d", x, y, - m_startOffset.fX, m_startOffset.fY); - x -= m_startOffset.fX; - y -= m_startOffset.fY; - if (m_startSelection) { - if (!clipRect.contains(x, y) - || !clipRect.contains(m_original.fX, m_original.fY)) { - clipRect.set(m_original.fX, m_original.fY, x, y); - clipRect.sort(); - clipRect.inset(-m_visibleRect.width(), -m_visibleRect.height()); - } - FirstCheck center(m_original.fX, m_original.fY, clipRect); - m_selStart = m_selEnd = findClosest(center, *m_picture, &base); - if (m_selStart.isEmpty()) - return; - DBG_NAV_LOGD("selStart clip=(%d,%d,%d,%d) m_original=%d,%d" - " m_selStart=(%d,%d,%d,%d)", clipRect.fLeft, clipRect.fTop, - clipRect.fRight, clipRect.fBottom, m_original.fX, m_original.fY, - m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom); - m_startBase = m_endBase = base; - m_startSelection = false; - m_extendSelection = true; - m_original.fX = m_original.fY = 0; - } - DBG_NAV_LOGD("extend x/y=%d,%d m_original=%d,%d", x, y, - m_original.fX, m_original.fY); - x -= m_original.fX; - y -= m_original.fY; - if (!clipRect.contains(x, y) || !clipRect.contains(m_selStart)) { - clipRect.set(m_selStart.fLeft, m_selStart.fTop, x, y); - clipRect.sort(); - clipRect.inset(-m_visibleRect.width(), -m_visibleRect.height()); - } - DBG_NAV_LOGD("extend clip=(%d,%d,%d,%d) x/y=%d,%d wordSel=%s outsideWord=%s", - clipRect.fLeft, clipRect.fTop, clipRect.fRight, clipRect.fBottom, x, y, - m_wordSelection ? "true" : "false", m_outsideWord ? "true" : "false"); - FirstCheck extension(x, y, clipRect); - SkIRect found = findClosest(extension, *m_picture, &base); - if (m_wordSelection) { - SkIRect wordBounds = m_wordBounds; - if (!m_outsideWord) - wordBounds.inset(-TOUCH_SLOP, -TOUCH_SLOP); - DBG_NAV_LOGD("x=%d y=%d wordBounds=(%d,%d,r=%d,b=%d)" - " found=(%d,%d,r=%d,b=%d)", x, y, wordBounds.fLeft, wordBounds.fTop, - wordBounds.fRight, wordBounds.fBottom, found.fLeft, found.fTop, - found.fRight, found.fBottom); - if (wordBounds.contains(x, y)) { - DBG_NAV_LOG("wordBounds.contains=true"); - m_outsideWord = false; - return; - } - m_outsideWord = true; - if (found.fBottom <= wordBounds.fTop) - m_hitTopLeft = true; - else if (found.fTop >= wordBounds.fBottom) - m_hitTopLeft = false; - else - m_hitTopLeft = (found.fLeft + found.fRight) - < (wordBounds.fLeft + wordBounds.fRight); - } - DBG_NAV_LOGD("x=%d y=%d m_startSelection=%s %s=(%d, %d, %d, %d)" - " m_extendSelection=%s", - x, y, m_startSelection ? "true" : "false", - m_hitTopLeft ? "m_selStart" : "m_selEnd", - found.fLeft, found.fTop, found.fRight, found.fBottom, - m_extendSelection ? "true" : "false"); - if (m_hitTopLeft) { - m_startBase = base; - m_selStart = found; - } else { - m_endBase = base; - m_selEnd = found; - } - swapAsNeeded(); -} - -SkIRect SelectText::findClosest(FirstCheck& check, const SkPicture& picture, - int* base) -{ - LineCheck lineCheck(check.focusX(), check.focusY(), check.getArea()); - TextCanvas lineChecker(&lineCheck); - lineChecker.drawPicture(const_cast<SkPicture&>(picture)); - lineCheck.finish(m_selRegion); - check.setLines(&lineCheck); - TextCanvas checker(&check); - checker.drawPicture(const_cast<SkPicture&>(picture)); - check.finishGlyph(); - return check.adjustedBounds(base); -} - -SkIRect SelectText::findEdge(const SkPicture& picture, const SkIRect& area, - int x, int y, bool left, int* base) -{ - SkIRect result; - result.setEmpty(); - FirstCheck center(x, y, area); - center.setRecordGlyph(); - int closestBase; - SkIRect closest = findClosest(center, picture, &closestBase); - SkIRect sloppy = closest; - sloppy.inset(-TOUCH_SLOP, -TOUCH_SLOP); - if (!sloppy.contains(x, y)) { - DBG_NAV_LOGD("sloppy=(%d, %d, %d, %d) area=(%d, %d, %d, %d) x/y=%d,%d", - sloppy.fLeft, sloppy.fTop, sloppy.fRight, sloppy.fBottom, - area.fLeft, area.fTop, area.fRight, area.fBottom, x, y); - return result; - } - EdgeCheck edge(x, y, area, center, left); - do { // detect left or right until there's a gap - DBG_NAV_LOGD("edge=%p picture=%p area=%d,%d,%d,%d", - &edge, &picture, area.fLeft, area.fTop, area.fRight, area.fBottom); - TextCanvas checker(&edge); - checker.drawPicture(const_cast<SkPicture&>(picture)); - edge.finishGlyph(); - if (!edge.adjacent()) { - if (result.isEmpty()) { - *base = closestBase; - DBG_NAV_LOGD("closest=%d,%d,%d,%d", closest.fLeft, - closest.fTop, closest.fRight, closest.fBottom); - return closest; - } - DBG_NAV_LOG("adjacent break"); - break; - } - int nextBase; - const SkIRect& next = edge.bestBounds(&nextBase); - if (next.isEmpty()) { - DBG_NAV_LOG("empty"); - break; - } - if (result == next) { - DBG_NAV_LOG("result == next"); - break; - } - *base = nextBase; - result = next; - edge.shiftStart(result); - } while (true); - if (!result.isEmpty()) { - *base += area.fTop; - result.offset(area.fLeft, area.fTop); - } - return result; -} - -SkIRect SelectText::findLeft(const SkPicture& picture, const SkIRect& area, - int x, int y, int* base) -{ - return findEdge(picture, area, x, y, true, base); -} - -SkIRect SelectText::findRight(const SkPicture& picture, const SkIRect& area, - int x, int y, int* base) -{ - return findEdge(picture, area, x, y, false, base); -} - -const String SelectText::getSelection() -{ - if (!m_picture) - return String(); - SkIRect clipRect; - clipRect.set(0, 0, m_picture->width(), m_picture->height()); - String result = text(*m_picture, clipRect, m_selStart, m_startBase, - m_selEnd, m_endBase, m_flipped); - DBG_NAV_LOGD("clip=(%d,%d,%d,%d)" - " m_selStart=(%d, %d, %d, %d) m_selEnd=(%d, %d, %d, %d)", - clipRect.fLeft, clipRect.fTop, clipRect.fRight, clipRect.fBottom, - m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, - m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom); - DBG_NAV_LOGD("text=%s", result.latin1().data()); // uses CString - return result; -} - -void SelectText::getSelectionArrow(SkPath* path) -{ - const int arrow[] = { - 0, 14, 3, 11, 5, 15, 9, 15, 7, 11, 11, 11 - }; - for (unsigned index = 0; index < sizeof(arrow)/sizeof(arrow[0]); index += 2) - path->lineTo(arrow[index], arrow[index + 1]); - path->close(); -} - -void SelectText::getSelectionCaret(SkPath* path) -{ - SkScalar height = m_selStart.fBottom - m_selStart.fTop; - SkScalar dist = height / 4; - path->moveTo(0, -height / 2); - path->rLineTo(0, height); - path->rLineTo(-dist, dist); - path->rMoveTo(0, -0.5f); - path->rLineTo(dist * 2, 0); - path->rMoveTo(0, 0.5f); - path->rLineTo(-dist, -dist); -} - -bool SelectText::hitCorner(int cx, int cy, int x, int y) const -{ - SkIRect test; - test.set(cx, cy, cx + m_controlWidth, cy + m_controlHeight); - test.inset(-m_controlSlop, -m_controlSlop); - DBG_HANDLE_LOG("checking if %dx%d,%d-%d contains %dx%d", - cx, cy, m_controlWidth, m_controlHeight, x, y); - return test.contains(x, y); -} - -bool SelectText::hitStartHandle(int x, int y) const -{ - int left = m_selStart.fLeft - m_controlWidth; - return hitCorner(left, m_selStart.fBottom, x, y); -} - -bool SelectText::hitEndHandle(int x, int y) const -{ - int left = m_selEnd.fRight; - return hitCorner(left, m_selEnd.fBottom, x, y); -} - -bool SelectText::hitSelection(int x, int y) const -{ - x -= m_startOffset.fX; - y -= m_startOffset.fY; - if (hitStartHandle(x, y)) - return true; - if (hitEndHandle(x, y)) - return true; - return m_selRegion.contains(x, y); -} - -void SelectText::getSelectionHandles(int* handles, LayerAndroid* root) -{ - handles[0] = m_selStart.fLeft; - handles[1] = m_selStart.fBottom; - handles[2] = m_selEnd.fRight; - handles[3] = m_selEnd.fBottom; - if (root && m_layerId) { - Layer* layer = root->findById(m_layerId); - while (layer) { - const SkPoint& pos = layer->getPosition(); - handles[0] += pos.fX; - handles[2] += pos.fX; - handles[1] += pos.fY; - handles[3] += pos.fY; - layer = layer->getParent(); - } - } -} - -void SelectText::moveSelection(const IntRect& vis, int x, int y) -{ - if (!m_picture) - return; - x -= m_startOffset.fX; - y -= m_startOffset.fY; - setVisibleRect(vis); - SkIRect clipRect = m_visibleRect; - clipRect.join(m_selStart); - clipRect.join(m_selEnd); - FirstCheck center(x, y, clipRect); - int base; - SkIRect found = findClosest(center, *m_picture, &base); - if (m_hitTopLeft || !m_extendSelection) { - m_startBase = base; - m_selStart = found; - } - if (!m_hitTopLeft || !m_extendSelection) { - m_endBase = base; - m_selEnd = found; - } - swapAsNeeded(); - DBG_NAV_LOGD("x=%d y=%d extendSelection=%s m_selStart=(%d, %d, %d, %d)" - " m_selEnd=(%d, %d, %d, %d)", x, y, m_extendSelection ? "true" : "false", - m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, - m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom); -} - -void SelectText::reset() -{ - DBG_NAV_LOG("m_extendSelection=false"); - m_selStart.setEmpty(); - m_lastStart.setEmpty(); - m_lastDrawnStart.setEmpty(); - m_selEnd.setEmpty(); - m_lastEnd.setEmpty(); - m_lastDrawnEnd.setEmpty(); - m_extendSelection = false; - m_startSelection = false; - SkSafeUnref(m_picture); - m_picture = 0; - m_layerId = 0; -} - -IntPoint SelectText::selectableText(const CachedRoot* root) -{ - int x = 0; - int y = 0; - SkPicture* picture = root->pictureAt(&x, &y, &m_layerId); - if (!picture) { - DBG_NAV_LOG("picture==0"); - return IntPoint(0, 0); - } - int width = picture->width(); - int height = picture->height(); - IntRect vis(0, 0, width, height); - FirstCheck center(width >> 1, height >> 1, vis); - int base; - const SkIRect& closest = findClosest(center, *picture, &base); - return IntPoint((closest.fLeft + closest.fRight) >> 1, - (closest.fTop + closest.fBottom) >> 1); -} - -void SelectText::selectAll() -{ - if (!m_picture) - return; - m_selStart = findFirst(*m_picture, &m_startBase); - m_selEnd = findLast(*m_picture, &m_endBase); - m_extendSelection = true; -} - -int SelectText::selectionX() const -{ - return (m_hitTopLeft ? m_selStart.fLeft : m_selEnd.fRight) + m_startOffset.fX; -} - -int SelectText::selectionY() const -{ - const SkIRect& rect = m_hitTopLeft ? m_selStart : m_selEnd; - return ((rect.fTop + rect.fBottom) >> 1) + m_startOffset.fY; -} - -void SelectText::setVisibleRect(const IntRect& vis) -{ - DBG_NAV_LOGD("vis=(%d,%d,w=%d,h=%d) offset=(%d,%d)", - vis.x(), vis.y(), vis.width(), vis.height(), m_startOffset.fX, - m_startOffset.fY); - m_visibleRect = vis; - m_visibleRect.offset(-m_startOffset.fX, -m_startOffset.fY); -} - -bool SelectText::startSelection(const CachedRoot* root, const IntRect& vis, - int x, int y) -{ - m_wordSelection = false; - m_startOffset.set(x, y); - DBG_NAV_LOGD("x/y=(%d,%d)", x, y); - SkSafeUnref(m_picture); - m_picture = root->pictureAt(&x, &y, &m_layerId); - DBG_NAV_LOGD("m_picture=%p m_layerId=%d x/y=(%d,%d)", m_picture, m_layerId, - x, y); - if (!m_picture) { - DBG_NAV_LOG("picture==0"); - return false; - } - m_picture->ref(); - m_startOffset.fX -= x; - m_startOffset.fY -= y; - m_original.fX = x; - m_original.fY = y; - setVisibleRect(vis); - if (m_selStart.isEmpty()) { - DBG_NAV_LOGD("empty start picture=(%d,%d) x=%d y=%d", - m_picture->width(), m_picture->height(), x, y); - m_startSelection = true; - return true; - } - m_hitTopLeft = hitStartHandle(x, y); - bool hitBottomRight = hitEndHandle(x, y); - DBG_NAV_LOGD("picture=(%d,%d) left=%d top=%d right=%d bottom=%d x=%d y=%d", - m_picture->width(), m_picture->height(),left, top, right, bottom, x, y); - if (m_hitTopLeft) { - DBG_NAV_LOG("hit top left"); - m_original.fX -= m_selStart.fLeft; - m_original.fY -= (m_selStart.fTop + m_selStart.fBottom) >> 1; - } else if (hitBottomRight) { - DBG_NAV_LOG("hit bottom right"); - m_original.fX -= m_selEnd.fRight; - m_original.fY -= (m_selEnd.fTop + m_selEnd.fBottom) >> 1; - } - return m_hitTopLeft || hitBottomRight; -} - -void SelectText::updateHandleScale(float handleScale) -{ - m_controlHeight = CONTROL_HEIGHT * handleScale; - m_controlWidth = CONTROL_WIDTH * handleScale; - m_controlSlop = CONTROL_SLOP * handleScale; -} - -/* selects the word at (x, y) -* a word is normally delimited by spaces -* a string of digits (even with inside spaces) is a word (for phone numbers) -* FIXME: digit find isn't implemented yet -* returns true if a word was selected -*/ -bool SelectText::wordSelection(const CachedRoot* root, const IntRect& vis, - int x, int y) -{ - IntRect tapArea = IntRect(x - TOUCH_SLOP, y - TOUCH_SLOP, TOUCH_SLOP * 2, - TOUCH_SLOP * 2); - if (!startSelection(root, tapArea, x, y)) - return false; - extendSelection(tapArea, x, y); - if (m_selStart.isEmpty()) - return false; - setDrawPointer(false); - setVisibleRect(vis); - SkIRect ivisBounds = m_visibleRect; - ivisBounds.join(m_selStart); - ivisBounds.join(m_selEnd); - DBG_NAV_LOGD("m_selStart=(%d,%d,r=%d,b=%d) m_selEnd=(%d,%d,r=%d,b=%d)" - " ivisBounds=(%d,%d,r=%d,b=%d)", - m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, - m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom, - ivisBounds.fLeft, ivisBounds.fTop, ivisBounds.fRight, ivisBounds.fBottom); - m_selRegion.setEmpty(); - buildSelection(*m_picture, ivisBounds, m_selStart, m_startBase, - m_selEnd, m_endBase, &m_selRegion); - x = m_selStart.fLeft; - y = (m_selStart.fTop + m_selStart.fBottom) >> 1; - SkIRect clipRect = m_visibleRect; - clipRect.fLeft -= m_visibleRect.width() >> 1; - clipRect.fLeft = std::max(clipRect.fLeft, 0); - int base; - SkIRect left = findLeft(*m_picture, clipRect, x, y, &base); - if (!left.isEmpty()) { - m_startBase = base; - m_selStart = left; - } - x = m_selEnd.fRight; - y = (m_selEnd.fTop + m_selEnd.fBottom) >> 1; - clipRect = m_visibleRect; - clipRect.fRight += m_visibleRect.width() >> 1; - SkIRect right = findRight(*m_picture, clipRect, x, y, &base); - if (!right.isEmpty()) { - m_endBase = base; - m_selEnd = right; - } - DBG_NAV_LOGD("m_selStart=(%d, %d, %d, %d) m_selEnd=(%d, %d, %d, %d)", - m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, - m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom); - if (!left.isEmpty() || !right.isEmpty()) { - m_wordBounds = m_selStart; - m_wordBounds.join(m_selEnd); - m_extendSelection = m_wordSelection = true; - m_outsideWord = false; - return true; - } - return false; -} - -void SelectText::swapAsNeeded() -{ - if (m_selStart.fTop >= (m_selEnd.fTop + m_selEnd.fBottom) >> 1 - || (m_selEnd.fTop < (m_selStart.fTop + m_selStart.fBottom) >> 1 - && m_selStart.fRight > m_selEnd.fLeft)) - { - SkTSwap(m_startBase, m_endBase); - SkTSwap(m_selStart, m_selEnd); - m_hitTopLeft ^= true; - DBG_NAV_LOGD("m_hitTopLeft=%s", m_hitTopLeft ? "true" : "false"); - } -} - -} |