double wxTransformMatrix::Get_scaleX()
{
double scale_factor;
double rot_angle = CheckInt(atan2(m_matrix[1][0],m_matrix[0][0])*180/pi);
if ( !wxIsSameDouble(rot_angle, 90) && !wxIsSameDouble(rot_angle, -90) )
scale_factor = m_matrix[0][0]/cos((rot_angle/180)*pi);
else
scale_factor = m_matrix[0][0]/sin((rot_angle/180)*pi); // er kan nl. niet door 0 gedeeld worden !
scale_factor = CheckInt(scale_factor);
if (scale_factor < 0)
scale_factor = -scale_factor;
return scale_factor;
}
bool wxGridCellFloatEditor::EndEdit(int WXUNUSED(row),
int WXUNUSED(col),
const wxGrid* WXUNUSED(grid),
const wxString& oldval, wxString *newval)
{
const wxString text(Text()->GetValue());
double value;
if ( !text.empty() )
{
if ( !text.ToDouble(&value) )
return false;
}
else // new value is empty string
{
if ( oldval.empty() )
return false; // nothing changed
value = 0.;
}
// the test for empty strings ensures that we don't skip the value setting
// when "" is replaced by "0" or vice versa as "" numeric value is also 0.
if ( wxIsSameDouble(value, m_value) && !text.empty() && !oldval.empty() )
return false; // nothing changed
m_value = value;
if ( newval )
*newval = text;
return true;
}
bool wxTransformMatrix::operator == (const wxTransformMatrix& mat) const
{
if (m_isIdentity && mat.m_isIdentity)
return true;
int i, j;
for (i = 0; i < 3; i++)
{
for (j = 0; j < 3; j++)
{
if ( !wxIsSameDouble(m_matrix[i][j], mat.m_matrix[i][j]) )
return false;
}
}
return true;
}
bool wxTextMeasureBase::DoGetPartialTextExtents(const wxString& text,
wxArrayInt& widths,
double scaleX)
{
int totalWidth = 0;
// reset the cache if font or horizontal scale have changed
if ( !s_fontWidthCache.m_widths ||
!wxIsSameDouble(s_fontWidthCache.m_scaleX, scaleX) ||
(s_fontWidthCache.m_font != *m_font) )
{
s_fontWidthCache.Reset();
s_fontWidthCache.m_font = *m_font;
s_fontWidthCache.m_scaleX = scaleX;
}
// Calculate the position of each character based on the widths of
// the previous characters. This is inexact for not fixed fonts.
int n = 0;
for ( wxString::const_iterator it = text.begin();
it != text.end();
++it )
{
const wxChar c = *it;
unsigned int c_int = (unsigned int)c;
int w;
if ((c_int < FWC_SIZE) && (s_fontWidthCache.m_widths[c_int] != 0))
{
w = s_fontWidthCache.m_widths[c_int];
}
else
{
DoGetTextExtent(c, &w, NULL);
if (c_int < FWC_SIZE)
s_fontWidthCache.m_widths[c_int] = w;
}
totalWidth += w;
widths[n++] = totalWidth;
}
return true;
}
static void
gtk_value_changed(GtkRange* range, wxSlider* win)
{
const double value = gtk_range_get_value(range);
const double oldPos = win->m_pos;
win->m_pos = value;
if (!win->m_hasVMT || g_blockEventsOnDrag)
return;
if (win->GTKEventsDisabled())
{
win->m_scrollEventType = GTK_SCROLL_NONE;
return;
}
wxEventType eventType = wxEVT_NULL;
if (win->m_isScrolling)
{
eventType = wxEVT_SCROLL_THUMBTRACK;
}
else if (win->m_scrollEventType != GTK_SCROLL_NONE)
{
// Scroll event from "move-slider" (keyboard)
eventType = GtkScrollTypeToWx(win->m_scrollEventType);
}
else if (win->m_mouseButtonDown)
{
// Difference from last change event
const double diff = value - oldPos;
const bool isDown = diff > 0;
GtkAdjustment* adj = gtk_range_get_adjustment(range);
if (IsScrollIncrement(gtk_adjustment_get_page_increment(adj), diff))
{
eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
}
else if (wxIsSameDouble(value, 0))
{
eventType = wxEVT_SCROLL_PAGEUP;
}
else if (wxIsSameDouble(value, gtk_adjustment_get_upper(adj)))
{
eventType = wxEVT_SCROLL_PAGEDOWN;
}
else
{
// Assume track event
eventType = wxEVT_SCROLL_THUMBTRACK;
// Remember that we're tracking
win->m_isScrolling = true;
}
}
win->m_scrollEventType = GTK_SCROLL_NONE;
// If integral position has changed
if (wxRound(oldPos) != wxRound(value))
{
ProcessScrollEvent(win, eventType);
win->m_needThumbRelease = eventType == wxEVT_SCROLL_THUMBTRACK;
}
}