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added cap and join style to Stroke #10

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added cap and join style to Stroke #10

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44e2288
added cap and join style to Stroke
Oct 13, 2021
7e2b4ea
using enum instead of enum class for Cap and Join style
Oct 17, 2021
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5 changes: 5 additions & 0 deletions main_1.0.0.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -76,5 +76,10 @@ int main()

doc << Rectangle(Point(70, 55), 20, 15, Color::Yellow);

Path path(Fill(), Stroke(5, Color::Blue, false, Stroke::CapRound, Stroke::JoinRound));
path << Point(0,0) << Point (10,0) << Point(10,5);
path.offset(Point(50,60));
doc << path;

doc.save();
}
26 changes: 24 additions & 2 deletions simple_svg_1.0.0.hpp
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Expand Up @@ -247,8 +247,13 @@ namespace svg
class Stroke : public Serializeable
{
public:
Stroke(double width = -1, Color color = Color::Transparent, bool nonScalingStroke = false)
: width(width), color(color), nonScaling(nonScalingStroke) { }
enum Cap { CapUndefined, CapButt, CapRound, CapSquare };
enum Join { JoinUndefined, JoinMiter, JoinRound, JoinBevel };
Stroke(double width = -1, Color color = Color::Transparent, bool nonScalingStroke = false,
Cap capStyle = CapUndefined, Join joinStyle = JoinUndefined)
: width(width), color(color), nonScaling(nonScalingStroke),
capStyle(capStyle), joinStyle(joinStyle)
{ }
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@adishavit adishavit Oct 14, 2021

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capStyle and joinStyle always initialized with some enum value and thus... (cont. below)

std::string toString(Layout const & layout) const
{
// If stroke width is invalid.
Expand All @@ -259,12 +264,29 @@ namespace svg
ss << attribute("stroke-width", translateScale(width, layout)) << attribute("stroke", color.toString(layout));
if (nonScaling)
ss << attribute("vector-effect", "non-scaling-stroke");

switch(capStyle) {
case CapButt : ss << attribute("stroke-linecap", "butt"); break;
case CapRound : ss << attribute("stroke-linecap", "round"); break;
case CapSquare : ss << attribute("stroke-linecap", "square"); break;
default : break;
}

switch(capStyle) {
case JoinMiter : ss << attribute("stroke-linejoin", "miter"); break;
case JoinRound : ss << attribute("stroke-linejoin", "round"); break;
case JoinBevel : ss << attribute("stroke-linejoin", "bevel"); break;
default : break;
}

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@adishavit adishavit Oct 14, 2021

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... they always have a value here so without the NotSpecified value, the stroke-line* attribute will always be written (unlike old the behavior).
Also, you should use a switch statement here for clarity.

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@Hannobal Hannobal Oct 17, 2021

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You're right, an enum class is c++11, I didn't think of that. I had used that to mitigate the duplication in Round. Now all the enum values have the type as prefix, e.g. JoinRound and CapRound. The switch also looks much cleaner, thanks for that suggestion. I was unsure if I should add separate cases for Cap/JoinUndefined and a throw for the default case, but then decided against it. If you wish otherwise, I can add that too.

return ss.str();
}
private:
double width;
Color color;
bool nonScaling;
Cap capStyle;
Join joinStyle;
};

class Font : public Serializeable
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