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Code Issues Releases Wiki Activity

Factor function to choose ruler fonts

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This commit is contained in:
Paul Licameli 2020-01-22 09:54:56 -05:00
parent 3876031669
commit e08543650b
2 changed files with 42 additions and 46 deletions
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87
src/widgets/Ruler.cpp
View File

@ -110,10 +110,6 @@ Ruler::Ruler()
fontSize = 8;
#endif
mFonts.minorMinor = wxFont{ fontSize - 1, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL };
mFonts.minor = wxFont{ fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL };
mFonts.major = wxFont{ fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD };
mUserFonts = false;
mLength = 0;
@ -921,6 +917,42 @@ double SolveWarpedLength(const Envelope &env, double t0, double length)
}
}
static constexpr int MinPixelHeight = 10; // 8;
static constexpr int MaxPixelHeight =
#ifdef __WXMAC__
10
#else
12
#endif
;
void Ruler::ChooseFonts( Fonts &fonts, wxDC &dc, int desiredPixelHeight )
{
int fontSize = 4;
wxCoord strW, strH, strD, strL;
wxString exampleText = wxT("0.9"); //ignored for height calcs on all platforms
desiredPixelHeight =
std::max(MinPixelHeight, std::min(MaxPixelHeight, -desiredPixelHeight));
// Keep making the font bigger until it's too big, then subtract one.
dc.SetFont(wxFont(fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD));
dc.GetTextExtent(exampleText, &strW, &strH, &strD, &strL);
while ((strH - strD - strL) <= desiredPixelHeight && fontSize < 40) {
fontSize++;
dc.SetFont(wxFont(fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD));
dc.GetTextExtent(exampleText, &strW, &strH, &strD, &strL);
}
fontSize--;
dc.SetFont(wxFont(fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL));
dc.GetTextExtent(exampleText, &strW, &strH, &strD, &strL);
fonts.lead = strL;
fonts.major = wxFont{ fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD };
fonts.minor = wxFont{ fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL };
fonts.minorMinor = wxFont{ fontSize - 1, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL };
}
void Ruler::Update(
wxDC &dc, const Envelope* envelope )// Envelope *speedEnv, long minSpeed, long maxSpeed )
{
@ -933,48 +965,11 @@ void Ruler::Update(
// tick positions and font size.
if (!mUserFonts) {
int fontSize = 4;
wxCoord strW, strH, strD, strL;
wxString exampleText = wxT("0.9"); //ignored for height calcs on all platforms
int desiredPixelHeight;
static const int MinPixelHeight = 10; // 8;
static const int MaxPixelHeight =
#ifdef __WXMAC__
10
#else
12
#endif
;
if (mOrientation == wxHORIZONTAL)
desiredPixelHeight = mBottom - mTop - 5; // height less ticks and 1px gap
else
desiredPixelHeight = MaxPixelHeight;
desiredPixelHeight =
std::max(MinPixelHeight, std::min(MaxPixelHeight,
desiredPixelHeight));
// Keep making the font bigger until it's too big, then subtract one.
dc.SetFont(wxFont(fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD));
dc.GetTextExtent(exampleText, &strW, &strH, &strD, &strL);
while ((strH - strD - strL) <= desiredPixelHeight && fontSize < 40) {
fontSize++;
dc.SetFont(wxFont(fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD));
dc.GetTextExtent(exampleText, &strW, &strH, &strD, &strL);
}
fontSize--;
dc.SetFont(wxFont(fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL));
dc.GetTextExtent(exampleText, &strW, &strH, &strD, &strL);
mFonts.lead = strL;
mFonts.major = wxFont{ fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD };
mFonts.minor = wxFont{ fontSize, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL };
mFonts.minorMinor = wxFont{ fontSize - 1, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL };
ChooseFonts( mFonts, dc,
mOrientation == wxHORIZONTAL
? mBottom - mTop - 5 // height less ticks and 1px gap
: MaxPixelHeight
);
}
// If ruler is being resized, we could end up with it being too small.

1
src/widgets/Ruler.h
View File

@ -157,6 +157,7 @@ class AUDACITY_DLL_API Ruler {
private:
struct TickSizes;
static void ChooseFonts( Fonts &fonts, wxDC &dc, int desiredPixelHeight );
void Update( wxDC &dc, const Envelope* envelope );
bool Tick( wxDC &dc,