Delphi-画一个Unicode字符? [英] Delphi - Draw a Unicode Character?

问题描述

我正在尝试在画布上绘制字体图标.我正在使用 Ionicons 字体.我得到的只是屏幕上的一个矩形.

I'm trying to draw an font icon on a canvas. I'm using the Ionicons font. All I get is a rectangle on the screen.

var
  x1, y1: integer;
  xChr: WideChar;
begin

  x1 := 10;
  y1 := 10;

  fMaleIcon := $f202;
  fFemailIcon := $f25d;

  if xRep.Male then
    xChr := Char(fMaleIcon)
  else
    xChr := Char(fFemaleIcon);

  xCanvas.TextOut(x1, y1, xChr);
end;

我在做什么错了?

谢谢-史蒂夫

推荐答案

空白矩形表示您使用的字体不包含这些字符的字形.您必须使用可以的字体.

The empty rectangle means that the font you are using does not contain glyphs for those characters. You must use a font that does.

您的代码相当复杂.我会这样写:

Your code is rather convoluted. I'd write it like this:

var
  xChr: Char;
begin
  if xRep.Male then
    xChr := #$f202;
  else
    xChr := #$f25d;

  xCanvas.TextOut(10, 10, xChr);
end;

或者也许:

const
  GenderChars: array [Boolean] of Char = (#$f25d, #$f202);
....
xCanvas.TextOut(10, 10, GenderChars[xRep.Male]);

您可能想声明一个枚举类型来保存您的性别信息，而不是一个 Boolean .

You might like to declare an enumerated type to hold your gender information, rather than a Boolean.

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