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More cleanup.

This commit is contained in:
Pietro Gagliardi 2017-02-10 11:52:26 -05:00
parent bb50440e55
commit 5823c3a53e
1 changed files with 19 additions and 121 deletions
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140
windows/drawtext.cpp
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@ -300,115 +300,15 @@ void uiDrawTextLayoutLineGetMetrics(uiDrawTextLayout *tl, int line, uiDrawTextLa
m->ParagraphSpacing = 0; // TODO
}
#if 0 /* TODO */
// expected behavior on end of line:
// - same as OS X
// - TODO RETEST THIS ON OTHER PLATFORMS: EXCEPT: if you type something, then backspace, the cursor will move back to where you clicked!
// TODO this function does NOT yet work like that; it works like the Unix equivalent right now
void uiDrawTextLayoutHitTest(uiDrawTextLayout *tl, double x, double y, uiDrawTextLayoutHitTestResult *result)
{
DWRITE_HIT_TEST_METRICS m;
size_t line;
double width, height;
BOOL trailing, inside; // crashes if I skip these :/
HRESULT hr;
hr = tl->layout->HitTestPoint(x, y,
&trailing, &inside,
&m);
if (hr != S_OK)
logHRESULT(L"error hit-testing IDWriteTextLayout", hr);
// figure out what line this is
if (y < 0)
line = 0;
else
for (line = 0; line < tl->nLines; line++)
if (y >= tl->lineInfo[line].y && y < (tl->lineInfo[line].y + tl->lineInfo[line].height))
break;
if (line == tl->nLines) // last position
line--;
result->Pos = tl->u16tou8[m.textPosition];
result->Line = line;
uiDrawTextLayoutExtents(tl, &width, &height);
result->XPosition = uiDrawTextLayoutHitTestPositionInside;
if (x < 0)
result->XPosition = uiDrawTextLayoutHitTestPositionBefore;
else if (x >= width)
result->XPosition = uiDrawTextLayoutHitTestPositionAfter;
result->YPosition = uiDrawTextLayoutHitTestPositionInside;
if (y < 0)
result->YPosition = uiDrawTextLayoutHitTestPositionBefore;
else if (y >= height)
result->YPosition = uiDrawTextLayoutHitTestPositionAfter;
result->CaretX = m.left; // TODO is this correct?
result->CaretY = tl->lineInfo[line].y;
result->CaretHeight = tl->lineInfo[line].height;
}
void uiDrawTextLayoutByteRangeToRectangle(uiDrawTextLayout *tl, size_t start, size_t end, uiDrawTextLayoutByteRangeRectangle *r)
{
DWRITE_HIT_TEST_METRICS mstart, mend;
size_t line;
FLOAT x, y; // crashes if I skip these :/
BOOL trailing, inside; // crashes if I skip these :/
HRESULT hr;
start = tl->u8tou16[start];
end = tl->u8tou16[end];
// TODO explain why this is a leading hit
hr = tl->layout->HitTestTextPosition(start, FALSE,
&x, &y,
&mstart);
if (hr != S_OK)
logHRESULT(L"error getting rect of start position", hr);
// figure out what line this is
for (line = 0; line < tl->nLines; line++)
if (start >= tl->lineInfo[line].startPos && start < tl->lineInfo[line].endPos)
break;
if (line == tl->nLines) // last position
line--;
if (end > tl->lineInfo[line].endPos)
end = tl->lineInfo[line].endPos;
hr = tl->layout->HitTestTextPosition(end, FALSE,
&x, &y,
&mend);
if (hr != S_OK)
logHRESULT(L"error getting rect of end position", hr);
r->X = mstart.left;
r->Y = tl->lineInfo[line].y;
r->Width = mend.left - mstart.left;
r->Height = tl->lineInfo[line].height;
hr = tl->layout->HitTestPoint(r->X, r->Y,
&trailing, &inside,
&mstart);
if (hr != S_OK)
logHRESULT(L"TODO write this", hr);
// TODO also get the end pos just so we can have an accurate r->RealEnd
r->RealStart = mstart.textPosition;
r->RealEnd = end;
r->RealStart = tl->u16tou8[r->RealStart];
r->RealEnd = tl->u16tou8[r->RealEnd];
}
#endif
// this algorithm comes from Microsoft's PadWrite sample, following TextEditor::SetSelectionFromPoint()
// TODO go back through all of these and make sure we convert coordinates properly
// TODO same for OS X
void uiDrawTextLayoutHitTest(uiDrawTextLayout *tl, double x, double y, size_t *pos, int *line)
{
DWRITE_HIT_TEST_METRICS m;
BOOL trailing, inside;
size_t p;
UINT32 i;
HRESULT hr;
hr = tl->layout->HitTestPoint(x, y,
@ -428,27 +328,20 @@ void uiDrawTextLayoutHitTest(uiDrawTextLayout *tl, double x, double y, size_t *p
logHRESULT(L"error aligning trailing hit to nearest cluster", hr);
p = m2.textPosition + m2.length;
}
// TODO should we just make the pointers required?
if (pos != NULL)
*pos = tl->u16tou8[p];
*pos = tl->u16tou8[p];
// TODO do the line detection unconditionally?
if (line != NULL) {
UINT32 i;
for (i = 0; i < tl->nLines; i++) {
double ltop, lbottom;
for (i = 0; i < tl->nLines; i++) {
double ltop, lbottom;
ltop = tl->lineInfo[i].y;
lbottom = ltop + tl->lineInfo[i].height;
// y will already >= ltop at this point since the past lbottom should == ltop
if (y < lbottom)
break;
}
if (i == tl->nLines)
i--;
*line = i;
ltop = tl->lineInfo[i].y;
lbottom = ltop + tl->lineInfo[i].height;
// y will already >= ltop at this point since the past lbottom should == ltop
if (y < lbottom)
break;
}
if (i == tl->nLines)
i--;
*line = i;
}
double uiDrawTextLayoutByteLocationInLine(uiDrawTextLayout *tl, size_t pos, int line)
@ -458,7 +351,12 @@ double uiDrawTextLayoutByteLocationInLine(uiDrawTextLayout *tl, size_t pos, int
FLOAT x, y;
HRESULT hr;
if (line < 0 || line >= tl->nLines)
return -1;
pos = tl->u8tou16[pos];
// note: >, not >=, because the position at endPos is valid!
if (pos < tl->lineInfo[line].startPos || pos > tl->lineInfo[line].endPos)
return -1;
// this behavior seems correct
// there's also PadWrite's TextEditor::GetCaretRect() but that requires state...
// TODO where does this fail?