本文整理汇总了C++中BMenu::GetFontHeight方法的典型用法代码示例。如果您正苦于以下问题：C++ BMenu::GetFontHeight方法的具体用法？C++ BMenu::GetFontHeight怎么用？C++ BMenu::GetFontHeight使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BMenu的用法示例。
在下文中一共展示了BMenu::GetFontHeight方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DrawContent
virtual void DrawContent()
{
BRect b = Frame();
BMenu *parent = Menu();
BPoint loc = parent->PenLocation();
enum {
W_CHAR = 0,
A_CHAR = 1,
OPEN_CHAR = 2,
CLOSE_CHAR = 3,
SPACE_CHAR = 4,
NUM_CHARS = 5
};
float escapements[NUM_CHARS];
BFont font;
parent->GetFont(&font);
font.GetEscapements("WA() ", NUM_CHARS, escapements);
for (int32 i=0; i<NUM_CHARS; i++) {
escapements[i] *= font.Size();
}
const float blockWidth = escapements[W_CHAR]+escapements[A_CHAR];
const rgb_color old_col = parent->HighColor();
font_height fh;
const bool showInitial = !CompareColors(fInitialColor, fColor);
b.InsetBy(1, 1);
b.bottom -= 1;
b.left = loc.x;
if (showInitial) {
parent->GetFontHeight(&fh);
parent->DrawString("(", BPoint(b.left, loc.y+fh.ascent));
}
b.left += escapements[OPEN_CHAR];
b.InsetBy(2, 2);
b.right = b.left + escapements[W_CHAR];
if (showInitial) {
parent->SetHighColor(fInitialColor);
parent->FillRect(b);
}
b.InsetBy(-1, -1);
if (showInitial) {
parent->SetHighColor(old_col);
parent->StrokeRect(b);
}
b.InsetBy(-1, -1);
if (showInitial) {
parent->DrawString(")", BPoint(b.right+1, loc.y+fh.ascent));
}
b.right += escapements[CLOSE_CHAR] + 1;
b.left = b.right + escapements[SPACE_CHAR];
b.right = b.left + blockWidth;
parent->SetHighColor(fColor);
parent->FillRect(b);
parent->SetHighColor(old_col);
b.InsetBy(-1, -1);
parent->StrokeRect(b);
parent->MovePenTo(b.right + escapements[SPACE_CHAR]*2 + 2, loc.y);
BMenuItem::DrawContent();
}