代号一-修改主题中的字体大小,例如哈希表 [英] Codename One - Modify a font size in a theme like in an hashtable
问题描述
在上一个问题中代号一个-放大或缩小所有样式中的所有字体的方法我回答了一个方法,该方法可迭代主题的所有值,并且如果给定值是Font的等距形式,它将更改其样式
In the previous question Codename One - Method to enlarge or reduce all the fonts in all the styles I replied with a method that iterates all the values of a theme and, if a given value is an istance of Font, it changes its font size of a given percentage.
问题是它不能按预期工作,因为某些字体已更改,而另一些则没有。例如,如果我的theme.xml中具有以下Label(3.1毫米)的字体大小,则该Label字体大小不会更改:
The problem is that it doesn't work as expected, because some fonts are changed and others are not. For example, if I have the following font size of a Label (3.1mm) in my theme.xml, that Label font size it's not changed:
<font key="Label.font" type="ttf" face="0" style="0" size="0" name="native:MainThin" family="native:MainThin" sizeSettings="3" actualSize="3.1" />
以下代码有什么问题?
/**
* Increases or reduces of a given percentage all the font sizes of a given
* theme, overlaying a new theme containing only the new font sizes. The
* font sizes will be increased when the percentage is positive, they will
* be reduced when the percentage is negative. Legal percentage values are
* from -90 to 300.
*
* Example of usage: changeFontSizesOfTheme(theme, "Theme", 50);
*
* @param theme the given resource file
* @param themeName the name of given theme
* @param percentage the given percentage to increase or reduce the font
* sizes
*/
public static void changeFontSizesOfTheme(Resources theme, String themeName, int percentage) {
if (theme.isTheme(themeName) && percentage != 0 && percentage >= -90 && percentage <= 300) {
Hashtable hashtable = theme.getTheme("Theme");
Hashtable overlay = new Hashtable();
Set<String> keys = hashtable.keySet();
Iterator<String> itr = keys.iterator();
String key;
Object value;
int count = 0;
while (itr.hasNext()) {
key = itr.next();
value = hashtable.get(key);
if (value instanceof Font) {
Font originalFont = (Font) value;
float originalFontSize = originalFont.getPixelSize();
float newFontSize = originalFontSize * (100 + percentage) / 100;
overlay.put(key, originalFont.derive(newFontSize, originalFont.getStyle()));
count++;
}
}
UIManager.getInstance().addThemeProps(overlay);
Log.p(count + " font sizes of the theme \"" + themeName + "\" were overlayed");
}
}
推荐答案
错误是这一行:
Hashtable hashtable = theme.getTheme("Theme");
正确的代码没有双引号:
The correct code is without the double quotes:
Hashtable hashtable = theme.getTheme(Theme);
仅此而已:)
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