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Add wxFontInfo ctor taking fractional font size in points

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And implement support for it in the major ports.

Also add wxFontInfo::GetFractionalPointSize().
This commit is contained in:
Vadim Zeitlin
2018-09-12 17:50:06 +02:00
parent 2823e289d8
commit 27434db911
5 changed files with 51 additions and 27 deletions
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25
include/wx/font.h
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@@ -129,14 +129,23 @@ public:
// Default ctor uses the default font size appropriate for the current
// platform.
wxFontInfo()
{ InitPointSize(-1); }
{ InitPointSize(-1.0f); }
// These ctors specify the font size, either in points or in pixels.
explicit wxFontInfo(int pointSize)
// Point size is a floating point number, however we also accept all
// integer sizes using the simple template ctor below.
explicit wxFontInfo(float pointSize)
{ InitPointSize(pointSize); }
explicit wxFontInfo(const wxSize& pixelSize) : m_pixelSize(pixelSize)
{ Init(); }
// Need to define this one to avoid casting double to int too.
explicit wxFontInfo(double pointSize)
{ InitPointSize(pointSize); }
template <typename T>
explicit wxFontInfo(T pointSize)
{ InitPointSize(ToFloatPointSize(pointSize)); }
// Setters for the various attributes. All of them return the object itself
// so that the calls to them could be chained.
wxFontInfo& Family(wxFontFamily family)
@@ -174,7 +183,8 @@ public:
// various pieces of the font description.
bool IsUsingSizeInPixels() const { return m_pixelSize != wxDefaultSize; }
int GetPointSize() const { return m_pointSize; }
float GetFractionalPointSize() const { return m_pointSize; }
int GetPointSize() const { return ToIntPointSize(m_pointSize); }
wxSize GetPixelSize() const { return m_pixelSize; }
wxFontFamily GetFamily() const { return m_family; }
const wxString& GetFaceName() const { return m_faceName; }
@@ -245,7 +255,7 @@ private:
m_encoding = wxFONTENCODING_DEFAULT;
}
void InitPointSize(int pointSize)
void InitPointSize(float pointSize)
{
Init();
@@ -264,10 +274,9 @@ private:
}
// The size information: if m_pixelSize is valid (!= wxDefaultSize), then
// it is used. Otherwise m_pointSize is used, taking into account that if
// it is == -1, it means that the platform dependent font size should be
// used.
int m_pointSize;
// it is used. Otherwise m_pointSize is used, except if it is < 0, which
// means that the platform dependent font size should be used instead.
float m_pointSize;
wxSize m_pixelSize;
wxFontFamily m_family;