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From chitgoks <chitg...@gmail.com>
Subject Re: converting hex to PDColor
Date Tue, 14 Mar 2017 02:47:56 GMT
that worked. thank you very much



On Mon, Mar 13, 2017 at 8:37 PM, chitgoks <chitgoks@gmail.com> wrote:

> thank you all for thebresponse
>
> i will try this out and confirm
>
>
> On Mon, 13 Mar 2017 at 8:26 PM Lachezar Dobrev <l.dobrev@gmail.com> wrote:
>
>>   Hmm...
>>
>>   1. java.awt.Color.decode(colorStr);
>>   2. You're using integer division "rgb.getRed()/255" will yield 0 or
>> 1, which is then cast to float. Use "getRed()/255f" to get a float
>> result.
>>
>>   Your integer division code will only yield a red colour with
>> #FF8000, which I suspect gets superimposed on a white background (with
>> alpha, dithering, blurring, whatever) and ends up being pinkish.
>>
>>   Also the Color step is totally unnecessary:
>>
>>   int c = Integer.parseInt(colorStr.substring(1), 16);
>>   float r = ((c & 0xFF0000) >> 16) / 255f;
>>   float g = ((c & 0x00FF00) >>  8) / 255f;
>>   float b = ((c & 0x0000FF) >>  0) / 255f; // The ">> 0" can be omitted
>>   PDColor pdc = new PDColor( new float[] { r, g, b },
>> PDDeviceRGB.INSTANCE);
>>
>> 2017-03-13 12:27 GMT+02:00 chitgoks <chitgoks@gmail.com>:
>> > hi again
>> >
>> > a little assistance regarding converting hex to PDColor.
>> >
>> > please take this example #ff8000
>> >
>> > and this is my code
>> >
>> > String colorStr = "#ff8000";
>> > java.awt.Color rgb = new java.awt.Color(
>> >             Integer.valueOf(colorStr.substring(1, 3), 16),
>> >             Integer.valueOf(colorStr.substring(3, 5), 16),
>> >             Integer.valueOf(colorStr.substring(5, 7), 16))
>> >
>> > PDColor pdcolor = new PDColor(new float[] { rgb.getRed() / 255,
>> > rgb.getGreen() / 255, rgb.getBlue() / 255}, PDDeviceRGB.INSTANCE);
>> >
>> > the result is pink-ish (the wrong color), instead of orange-ish (the
>> > correct color).
>>
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