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fix imports and input validation, add unit tests for invalid inputs

This commit is contained in:
bagomot 2023-04-21 22:43:29 +03:00
parent 0cee5c77ab
commit 825499195a
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GPG Key ID: F28BBD3A259717A8
1 changed files with 34 additions and 20 deletions
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54
src/dlangui/graphics/colors.d
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@ -20,7 +20,7 @@ module dlangui.graphics.colors;
import dlangui.core.types;
private import std.string : strip;
private import std.string, std.algorithm, std.traits, std.conv, std.range, std.math;
/// special color constant to identify value as not a color (to use default/parent value instead)
immutable uint COLOR_UNSPECIFIED = 0xFFDEADFF;
@ -314,27 +314,28 @@ bool isFullyTransparentColor(uint color) pure nothrow {
/// decode color string supported formats: #RGB, #ARGB, #RRGGBB, #AARRGGBB, rgb(r,g,b), rgba(r,g,b,a), rgba(r,g,b,a%)
//TODO: the name doesn't match function
uint decodeHexColor(string s, uint defValue = 0) pure
{
uint decodeHexColor(string s, uint defValue = 0) pure {
s = s.strip.toLower;
if (s.empty)
return defValue;
if (s == "@null" || s == "transparent")
return COLOR_TRANSPARENT;
if (s.startsWith("#") && (s.length == 4 || s.length == 5 || s.length == 7 || s.length == 9))
{ //#RGB #ARGB #RRGGBB #AARRGGBB
s = s[1 .. $];
auto color = parse!uint(s, 16); //RGB(A) by default
if (s.length == 4)
{ //ARGB
color = ((color & 0xF00) >> 4) | ((color & 0xF0) << 8) | ((color & 0xF) << 20);
if (s.startsWith("#")) {
if (s.length == 4 || s.length == 5 || s.length == 7 || s.length == 9) { //#RGB #ARGB #RRGGBB #AARRGGBB
s = s[1 .. $];
auto color = parse!uint(s, 16); //RGB(A) by default
if (s.length == 4)
{ //ARGB
color = ((color & 0xF00) >> 4) | ((color & 0xF0) << 8) | ((color & 0xF) << 20);
}
else if (s.length == 8)
{ //AARRGGBB
color = ((color & 0xFF00) >> 8) | ((color & 0xFF) << 24) | (
(color & 0xFF0000) >> 8) | ((color & 0xFF000000) >> 24);
}
return color;
}
else if (s.length == 8)
{ //AARRGGBB
color = ((color & 0xFF00) >> 8) | ((color & 0xFF) << 24) | (
(color & 0xFF0000) >> 8) | ((color & 0xFF000000) >> 24);
}
return color;
return defValue;
}
else if (s.startsWith("rgba(") && s.endsWith(")"))
{
@ -349,10 +350,18 @@ uint decodeHexColor(string s, uint defValue = 0) pure
return defValue;
uint a = 1;
auto ap = parts[3].strip;
if (ap.endsWith("%")) //rgba(r,g,b,a%)
a = cast(uint) round(to!float(ap[0 .. $ - 1].strip) / 100.0 * 255.0);
else //rgba(r,g,b,a)
a = cast(uint) round(to!float(parts[3].strip) * 255.0);
if (ap.endsWith("%")) { //rgba(r,g,b,a%)
auto alpha = to!float(ap[0 .. $ - 1].strip);
if(alpha < 0 || alpha > 100)
return defValue;
a = cast(uint) round(alpha / 100.0 * 255.0);
}
else { //rgba(r,g,b,a)
auto alpha = to!float(parts[3].strip);
if (alpha < 0 || alpha > 1)
return defValue;
a = cast(uint) round(alpha * 255.0);
}
if (a < 0)
a = 0;
else if (a > 255)
@ -393,5 +402,10 @@ unittest
static assert(decodeHexColor("rgba(255, 0, 0,.5 )") == 0x80ff0000);
static assert(decodeHexColor("rgba(255,0, 0, 50%)") == 0x80ff0000);
static assert(decodeHexColor("rgb(255,255, 255)") == 0xffffff);
static assert(decodeHexColor("rgb(321,321,321)") == 0); // invalid input
static assert(decodeHexColor("not_valid_color_name") == 0); // invalid input
static assert(decodeHexColor("#80ff00000") == 0); // invalid input
static assert(decodeHexColor("#f0") == 0); // invalid input
static assert(decodeHexColor("rgba(255,255, 255, 10)") == 0); // invalid input
}