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Add 9-slice background support to button formspec elements (#9290)

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This commit is contained in:
Hugues Ross 2020-01-26 14:35:26 -05:00 • committed by rubenwardy
parent cde2a7f6f2
commit 60544ac56f
9 changed files with 86 additions and 4 deletions
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58
src/gui/StyleSpec.h
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@ -37,6 +37,7 @@ public:
BORDER,
BGIMG,
BGIMG_HOVERED,
BGIMG_MIDDLE,
BGIMG_PRESSED,
FGIMG,
FGIMG_HOVERED,
@ -69,6 +70,8 @@ public:
return BGIMG;
} else if (name == "bgimg_hovered") {
return BGIMG_HOVERED;
} else if (name == "bgimg_middle") {
return BGIMG_MIDDLE;
} else if (name == "bgimg_pressed") {
return BGIMG_PRESSED;
} else if (name == "fgimg") {
@ -117,6 +120,29 @@ public:
return color;
}
irr::core::rect<s32> getRect(Property prop, irr::core::rect<s32> def) const
{
const auto &val = properties[prop];
if (val.empty())
return def;
irr::core::rect<s32> rect;
if (!parseRect(val, &rect))
return def;
return rect;
}
irr::core::rect<s32> getRect(Property prop) const
{
const auto &val = properties[prop];
FATAL_ERROR_IF(val.empty(), "Unexpected missing property");
irr::core::rect<s32> rect;
parseRect(val, &rect);
return rect;
}
video::ITexture *getTexture(Property prop, ISimpleTextureSource *tsrc,
video::ITexture *def) const
{
@ -175,4 +201,36 @@ public:
newspec |= other;
return newspec;
}
private:
bool parseRect(const std::string &value, irr::core::rect<s32> *parsed_rect) const
{
irr::core::rect<s32> rect;
std::vector<std::string> v_rect = split(value, ',');
if (v_rect.size() == 1) {
s32 x = stoi(v_rect[0]);
rect.UpperLeftCorner = irr::core::vector2di(x, x);
rect.LowerRightCorner = irr::core::vector2di(-x, -x);
} else if (v_rect.size() == 2) {
s32 x = stoi(v_rect[0]);
s32 y = stoi(v_rect[1]);
rect.UpperLeftCorner = irr::core::vector2di(x, y);
rect.LowerRightCorner = irr::core::vector2di(-x, -y);
// `-x` is interpreted as `w - x`
} else if (v_rect.size() == 4) {
rect.UpperLeftCorner = irr::core::vector2di(
stoi(v_rect[0]), stoi(v_rect[1]));
rect.LowerRightCorner = irr::core::vector2di(
stoi(v_rect[2]), stoi(v_rect[3]));
} else {
warningstream << "Invalid rectangle string format: \"" << value
<< "\"" << std::endl;
return false;
}
*parsed_rect = rect;
return true;
}
};