PARAFORMAT CAutoRichEditCtrl::GetParagraphFormat()
{
PARAFORMAT pf;
pf.cbSize = sizeof(PARAFORMAT);
pf.dwMask = PFM_ALIGNMENT | PFM_NUMBERING;
GetParaFormat(pf);
return pf;
}
int CRichEditCtrlGS::IsJustified(void)
{ PARAFORMAT pf;
pf.cbSize = sizeof(PARAFORMAT);
pf.dwMask = PFM_ALIGNMENT;
DWORD dwSelMask = GetParaFormat(pf);
bool bConsistent = false; // JUSTIFIED alignment inconsistent over the whole Selection
if( dwSelMask & PFA_JUSTIFY )// JUSTIFIED alignment consistent over the whole Selection?
{ bConsistent = true;
}
if( !bConsistent )
{ return (-1); // Set Button to indeterminate
}
if( (pf.wAlignment & 0xFF) == PFA_JUSTIFY )
{ return(1); // Set Button to checked
}
return 0; // Set Button to unchecked
}
int CRichEditCtrlGS::IsBulleted(void)
{ PARAFORMAT pf;
pf.cbSize = sizeof(PARAFORMAT);
pf.dwMask = PFM_ALIGNMENT | PFM_NUMBERING;
DWORD dwSelMask = GetParaFormat(pf);
bool bConsistent = false; // Paragraph NUMBERING inconsistent over the whole Selection
if( dwSelMask & PFM_NUMBERING )// Paragraph NUMBERING consistent over the whole Selection?
{ bConsistent = true;
}
if( !bConsistent )
{ return (-1); // Set Button to indeterminate
}
if( pf.wNumbering & PFN_BULLET )
{ return(1); // Set Button to checked
}
return 0; // Set Button to unchecked
}
void CRichEditCtrlGS::SetBullet(void)
{ int iFormatted = IsBulleted();
PARAFORMAT pf;
pf.cbSize = sizeof(PARAFORMAT);
pf.dwMask = PFM_NUMBERING | PFM_STARTINDENT | PFM_OFFSET;
GetParaFormat(pf);
if( 1 == iFormatted )
{ pf.wNumbering = 0;
pf.dxOffset = 0;
pf.dwMask = PFM_NUMBERING | PFM_STARTINDENT | PFM_OFFSET;
}
else
{ pf.wNumbering = PFN_BULLET;
pf.dwMask = PFM_NUMBERING;
if( pf.dxOffset == 0 )
{ pf.dxOffset = 160;
pf.dwMask = PFM_NUMBERING | PFM_STARTINDENT | PFM_OFFSET;
}
}
SetParaFormat(pf);
}
LONG NativeTextfieldWin::ClipXCoordToVisibleText(LONG x,
bool is_triple_click) const
{
// Clip the X coordinate to the left edge of the text. Careful:
// PosFromChar(0) may return a negative X coordinate if the beginning of the
// text has scrolled off the edit, so don't go past the clip rect's edge.
PARAFORMAT2 pf2;
GetParaFormat(pf2);
// Calculation of the clipped coordinate is more complicated if the paragraph
// layout is RTL layout, or if there is RTL characters inside the LTR layout
// paragraph.
bool ltr_text_in_ltr_layout = true;
if((pf2.wEffects & PFE_RTLPARA) ||
base::i18n::StringContainsStrongRTLChars(GetText()))
{
ltr_text_in_ltr_layout = false;
}
const int length = GetTextLength();
RECT r;
GetRect(&r);
// The values returned by PosFromChar() seem to refer always
// to the left edge of the character's bounding box.
const LONG first_position_x = PosFromChar(0).x;
LONG min_x = first_position_x;
if(!ltr_text_in_ltr_layout)
{
for(int i=1; i<length; ++i)
{
min_x = std::min(min_x, PosFromChar(i).x);
}
}
const LONG left_bound = std::max(r.left, min_x);
// PosFromChar(length) is a phantom character past the end of the text. It is
// not necessarily a right bound; in RTL controls it may be a left bound. So
// treat it as a right bound only if it is to the right of the first
// character.
LONG right_bound = r.right;
LONG end_position_x = PosFromChar(length).x;
if(end_position_x >= first_position_x)
{
right_bound = std::min(right_bound, end_position_x); // LTR case.
}
// For trailing characters that are 2 pixels wide of less (like "l" in some
// fonts), we have a problem:
// * Clicks on any pixel within the character will place the cursor before
// the character.
// * Clicks on the pixel just after the character will not allow triple-
// click to work properly (true for any last character width).
// So, we move to the last pixel of the character when this is a
// triple-click, and moving to one past the last pixel in all other
// scenarios. This way, all clicks that can move the cursor will place it at
// the end of the text, but triple-click will still work.
if(x < left_bound)
{
return (is_triple_click && ltr_text_in_ltr_layout) ? left_bound-1 :
left_bound;
}
if((length==0) || (x<right_bound))
{
return x;
}
return is_triple_click ? (right_bound-1) : right_bound;
}
