Comments (3)
Forgot to mention, this was observed when using MS Sans Serif
from lcd-image-converter.
Sorry, I can't fix it.
Fonts like
- Courier
- MS Sans Serif
- MS Serif
are bitmap fonts. They can't be scaled to any size. Only fixed list of values are available.
I can only add note for such fonts and update list of sizes.
For example, Arial is a scalable font:
#include "mainwindow.h"
#include <QFontDatabase>
#include <QDebug>
#include <QFontMetrics>
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QFontDatabase fonts;
QString family =
//"MS Sans Serif";
//"Arial";
"Courier";
QString style = "Normal";
QList<int> sizes = fonts.smoothSizes(family, style);
qDebug() << "Sizes for " << family << " " << style;
for (int i = 0; i < sizes.count(); i++)
{
qDebug() << sizes.at(i);
}
bool isScalable = fonts.isScalable(family, style);
bool isSmoothlyScalable = fonts.isSmoothlyScalable(family, style);
qDebug() << "isScalable: " << (isScalable ? "true" : "false");
qDebug() << "isSmoothlyScalable: " << (isSmoothlyScalable ? "true" : "false");
for (int i = 16; i <= 72; i++)
{
QFont font = fonts.font(family, style, i);
QFontMetrics metrics(font);
qDebug() << "i = " << i << ", h = " << metrics.height();
}
MainWindow w;
w.show();
return a.exec();
}
Sizes for "MS Sans Serif" "Normal"
10
12
15
18
19
22
27
28
35
isScalable: false
isSmoothlyScalable: false
i = 16 , h = 23
i = 17 , h = 29
i = 18 , h = 29
i = 19 , h = 28
i = 20 , h = 33
i = 21 , h = 33
i = 22 , h = 33
i = 23 , h = 33
i = 24 , h = 33
i = 25 , h = 41
i = 26 , h = 41
i = 27 , h = 41
i = 28 , h = 42
i = 29 , h = 42
i = 30 , h = 42
i = 31 , h = 42
i = 32 , h = 52
i = 33 , h = 52
i = 34 , h = 52
i = 35 , h = 52
i = 36 , h = 52
i = 37 , h = 52
i = 38 , h = 52
i = 39 , h = 52
i = 40 , h = 52
i = 41 , h = 52
i = 42 , h = 52
i = 43 , h = 52
i = 44 , h = 52
i = 45 , h = 52
i = 46 , h = 52
i = 47 , h = 52
i = 48 , h = 52
i = 49 , h = 52
i = 50 , h = 52
i = 51 , h = 52
i = 52 , h = 52
i = 53 , h = 52
i = 54 , h = 52
i = 55 , h = 52
i = 56 , h = 52
i = 57 , h = 52
i = 58 , h = 52
i = 59 , h = 52
i = 60 , h = 52
i = 61 , h = 52
i = 62 , h = 52
i = 63 , h = 52
i = 64 , h = 52
i = 65 , h = 52
i = 66 , h = 52
i = 67 , h = 52
i = 68 , h = 52
i = 69 , h = 52
i = 70 , h = 52
i = 71 , h = 52
i = 72 , h = 52
Sizes for "Arial" "Normal"
isScalable: true
isSmoothlyScalable: true
i = 16 , h = 24
i = 17 , h = 26
i = 18 , h = 27
i = 19 , h = 28
i = 20 , h = 32
i = 21 , h = 32
i = 22 , h = 33
i = 23 , h = 35
i = 24 , h = 36
i = 25 , h = 38
i = 26 , h = 40
i = 27 , h = 41
i = 28 , h = 42
i = 29 , h = 44
i = 30 , h = 45
i = 31 , h = 47
i = 32 , h = 49
i = 33 , h = 50
i = 34 , h = 50
i = 35 , h = 53
i = 36 , h = 55
i = 37 , h = 56
i = 38 , h = 58
i = 39 , h = 60
i = 40 , h = 60
i = 41 , h = 63
i = 42 , h = 65
i = 43 , h = 65
i = 44 , h = 66
i = 45 , h = 67
i = 46 , h = 68
i = 47 , h = 71
i = 48 , h = 72
i = 49 , h = 73
i = 50 , h = 75
i = 51 , h = 76
i = 52 , h = 77
i = 53 , h = 80
i = 54 , h = 81
i = 55 , h = 82
i = 56 , h = 83
i = 57 , h = 84
i = 58 , h = 87
i = 59 , h = 88
i = 60 , h = 89
i = 61 , h = 91
i = 62 , h = 92
i = 63 , h = 94
i = 64 , h = 96
i = 65 , h = 97
i = 66 , h = 99
i = 67 , h = 100
i = 68 , h = 101
i = 69 , h = 103
i = 70 , h = 104
i = 71 , h = 106
i = 72 , h = 107
Sizes for "Courier" "Normal"
10
12
15
19
isScalable: false
isSmoothlyScalable: false
i = 16 , h = 22
i = 17 , h = 29
i = 18 , h = 29
i = 19 , h = 29
i = 20 , h = 29
i = 21 , h = 29
i = 22 , h = 29
i = 23 , h = 29
i = 24 , h = 29
i = 25 , h = 29
i = 26 , h = 29
i = 27 , h = 29
i = 28 , h = 29
i = 29 , h = 29
i = 30 , h = 29
i = 31 , h = 29
i = 32 , h = 29
i = 33 , h = 29
i = 34 , h = 29
i = 35 , h = 29
i = 36 , h = 29
i = 37 , h = 29
i = 38 , h = 29
i = 39 , h = 29
i = 40 , h = 29
i = 41 , h = 29
i = 42 , h = 29
i = 43 , h = 29
i = 44 , h = 29
i = 45 , h = 29
i = 46 , h = 29
i = 47 , h = 29
i = 48 , h = 29
i = 49 , h = 29
i = 50 , h = 29
i = 51 , h = 29
i = 52 , h = 29
i = 53 , h = 29
i = 54 , h = 29
i = 55 , h = 29
i = 56 , h = 29
i = 57 , h = 29
i = 58 , h = 29
i = 59 , h = 29
i = 60 , h = 29
i = 61 , h = 29
i = 62 , h = 29
i = 63 , h = 29
i = 64 , h = 29
i = 65 , h = 29
i = 66 , h = 29
i = 67 , h = 29
i = 68 , h = 29
i = 69 , h = 29
i = 70 , h = 29
i = 71 , h = 29
i = 72 , h = 29
from lcd-image-converter.
OK, thanks for info, I will use a scalable font then.
from lcd-image-converter.
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