[英]256 bit image mask for xterm-256
I am using ncurses
with c++
on a xterm-256
display and I would like to print my text in shades of red, but I'm having trouble finding a simple way to do this. 我在xterm-256
显示器上将ncurses
与c++
一起使用,我想以红色阴影打印文本,但是我很难找到一种简单的方法来做到这一点。
Using this chart I can see that 0x009
is red and that 0x255
- 0x232
will be various shades of black. 使用这个图表我可以看到, 0x009
是红色和0x255
- 0x232
将是黑色的色块。 How can I go about using this information to form a mast for my colors? 如何使用这些信息来形成我的颜色的桅杆?
I would basically like to form a map such that 10
means white and 20
means red, such that 15
would be pink and so on. 我基本上想构成一张地图,以10
表示白色,以20
表示红色,以15
表示粉红色,依此类推。 I would then create color pairs with 然后,我将使用
init_pair(10, ???, COLOR_BLACK);
init_pair(11, ???, COLOR_BLACK);
...
init_pair(20, ???, COLOR_BLACK);
so that I could use these colors later to shade from white to red. 这样我以后就可以使用这些颜色从白色变为红色。
It depends on what assumptions you want to make. 这取决于您要做出的假设。 The layout of the xterm 256color feature is a given, with three parts: xterm 256color功能的布局是给定的,分为三个部分:
See for example 256color.pl (widely copied from xterm sources). 参见例如256color.pl (从xterm来源广泛复制)。 The numbers make more sense than the chart when you see the picture: 看到图片时,数字比图表更有意义:
You could simply refer to those color numbers in init_pair
. 您可以简单地在init_pair
引用这些颜色编号。 Bright red as you have noticed is 9 ( COLOR_RED
+ 8). 如您COLOR_RED
鲜红色为9( COLOR_RED
+ 8)。
On the other hand, the color palette can be modified. 另一方面,可以修改调色板。 You could use init_color
(giving your own red/green/blue triple) to define a color by number, and use that in init_pair
. 您可以使用init_color
(赋予您自己的红色/绿色/蓝色三色)按数字定义颜色,然后在init_pair
使用该 init_pair
。
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