Changed: background shorthand parsing
--HG-- branch : develop
This commit is contained in:
Nimetu
parent
4f4ba7120d
commit
7ca3b85c54
2 changed files with 215 additions and 47 deletions
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@ -430,8 +430,8 @@ namespace NLGUI
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}
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}
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// second pass: rest of style
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for (it=styleRules.begin(); it != styleRules.end(); ++it)
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// second pass: use style own StyleRules as its updated from first pass
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for (it=style.StyleRules.begin(); it != style.StyleRules.end(); ++it)
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{
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if (it->first == "border" || it->first == "border-width")
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{
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@ -795,47 +795,169 @@ namespace NLGUI
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"background-attachment", "background-origin", "background-clip", "background-color"};
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std::string values[nbProps];
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bool found[nbProps] = {false};
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bool bgClipFound = false;
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std::string bgClipValue;
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std::string bgPositionX;
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std::string bgPositionY;
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uint partIndex = 0;
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std::vector<std::string> parts;
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std::vector<std::string>::iterator it;
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// FIXME: this will fail if url() contains ' ' chars
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// FIXME: this will also fail on 'background: rgb(255, 0, 0)'
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NLMISC::splitString(value, " ", parts);
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bool failed = false;
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for(uint index = 0; index < parts.size(); index++)
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bool allowSize = false;
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uint index = 0;
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while(!failed && index < parts.size())
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{
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const std::string val = toLower(trim(parts[index]));
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std::string val = toLower(parts[index]);
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bool matches = false;
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for(uint i = 0; i < nbProps; i++)
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{
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if (found[i])
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{
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continue;
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}
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if (found[i]) continue;
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if (props[i] == "background-image")
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{
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if (val.substr(0, 4) == "url(")
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{
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matches = true;
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found[i] = true;
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// use original value as 'val' is lowercase
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values[i] = parts[index];
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found[i] = true;
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}
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}
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else if (props[i] == "background-position")
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{
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// TODO:
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uint next = index;
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bool loop = false;
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do
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{
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float fval;
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std::string unit;
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// first loop -> true
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// second loop -> false && break
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loop = !loop;
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val = toLower(parts[next]);
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if (val == "center")
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{
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if (bgPositionX.empty()) bgPositionX = "center";
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if (bgPositionY.empty()) bgPositionY = "center";
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// consume 'center'
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next++;
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}
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else if (val == "left" || val == "right")
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{
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bgPositionX = val;
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// consume 'left|right'
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next++;
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if(next < parts.size() && getCssLength(fval, unit, parts[next]))
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{
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bgPositionX += " " + toString("%.0f%s", fval, unit.c_str());
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// consume css length
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next++;
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}
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}
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else if (val == "top" || val == "bottom")
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{
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bgPositionY = val;
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// consume top|bottom
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next++;
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if (next < parts.size() && getCssLength(fval, unit, parts[next]))
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{
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bgPositionY += " " + toString("%.0f%s", fval, unit.c_str());
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// consume css length
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next++;
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}
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}
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} while (loop);
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//
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if (!bgPositionX.empty() && !bgPositionY.empty())
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{
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matches = true;
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found[i] = true;
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// consume position values if there were any
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index = next-1;
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// look ahead to see if size is next
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if (next < parts.size() && parts[next] == "/")
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allowSize = true;
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}
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}
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else if (props[i] == "background-size")
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{
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// TODO: [<length-percentage> | auto ]{1,2} cover | contain
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if (allowSize && val == "/")
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{
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uint next = index + 1;
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if (next < parts.size())
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{
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val = toLower(parts[next]);
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if (val == "cover" || val == "contain")
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{
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matches = true;
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found[i] = true;
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values[i] = val;
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index = next;
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}
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else
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{
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float fval;
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std::string unit;
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std::string h, v;
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if (val == "auto" || getCssLength(fval, unit, val))
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{
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if (val == "auto")
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h = v = "auto";
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else
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h = v = toString("%.0f%s", fval, unit.c_str());
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next++;
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if (next < parts.size())
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{
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val = toLower(parts[next]);
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if (val == "auto")
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v = "auto";
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else if (getCssLength(fval, unit, val))
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v = toString("%.0f%s", fval, unit.c_str());
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else
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next--; // not size token
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}
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else
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{
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// not size token
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next--;
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}
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}
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if (!h.empty() && !v.empty())
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{
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matches = true;
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found[i] = true;
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values[i] = h + " " + v;
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index = next;
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}
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}
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}
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else
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{
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// no size, just '/'
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failed = true;
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break;
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}
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}
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}
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else if (props[i] == "background-repeat")
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{
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if (val == "repeat-x" || val == "repeat-y" || val == "repeat" || val == "space" || val == "round" || val == "no-repeat")
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{
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matches = true;
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found[i] = true;
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if (val == "repeat-x")
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{
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values[i] = "repeat no-repeat";
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@ -848,63 +970,104 @@ namespace NLGUI
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{
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std::string horiz = val;
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std::string vert = val;
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if (index+1 < parts.size())
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uint next = index + 1;
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if (next < parts.size())
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{
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std::string next = toLower(trim(parts[index+1]));
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if (next == "repeat" || next == "space" || next == "round" || next == "no-repeat")
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val = toLower(parts[next]);
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if (val == "repeat" || val == "space" || val == "round" || val == "no-repeat")
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{
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vert = next;
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index++;
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vert = val;
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index = next;
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}
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}
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if (vert == horiz)
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values[i] = vert;
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else
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values[i] = horiz + " " + vert;
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}
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found[i] = true;
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}
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}
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else if (props[i] == "background-attachment")
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{
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// TODO: scroll | fixed | local
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}
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else if (props[i] == "background-origin" || props[i] == "background-clip")
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if (val == "scroll" || val == "fixed" || val == "local")
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{
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matches = true;
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found[i] = true;
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values[i] = val;
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}
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}
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else if (props[i] == "background-origin")
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{
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// same values for both
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if (val == "padding-box" || val == "border-box" || val == "content-box")
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{
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values[i] = val;
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matches = true;
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found[i] = true;
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values[i] = val;
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// first time background-origin is set, also set background-clip
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if (!bgClipFound)
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bgClipValue = val;
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}
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}
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else if (props[i] == "background-clip")
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{
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if (val == "text" || val == "padding-box" || val == "border-box" || val == "content-box")
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{
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matches = true;
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found[i] = true;
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bgClipFound = true;
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bgClipValue = val;
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}
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}
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else if (props[i] == "background-color")
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{
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CRGBA color;
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if (!scanHTMLColor(val.c_str(), color))
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if (val == "transparent" || val == "currentcolor" || scanHTMLColor(val.c_str(), color))
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{
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failed = true;
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break;
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}
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matches = true;
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found[i] = true;
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values[i] = val;
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// color should come as last item
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}
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}
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// prop was found and parsed
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if (found[i])
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break;
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}
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}
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failed = !matches;
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index++;
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}
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// invalidate whole rule
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if (failed)
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{
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return;
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bgClipFound = false;
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for(uint i = 0; i < nbProps; i++)
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{
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found[i] = false;
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}
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}
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// apply found styles
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// apply found styles or use default
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for(uint i = 0; i < nbProps; i++)
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{
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if (found[i])
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{
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if (props[i] == "background-position")
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{
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style.StyleRules["background-position-x"] = bgPositionX;
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style.StyleRules["background-position-y"] = bgPositionY;
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}
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else if (props[i] == "background-clip")
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{
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style.StyleRules["background-clip"] = bgClipValue;
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}
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else
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{
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style.StyleRules[props[i]] = values[i];
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}
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}
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else
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{
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// fill in default if one is set
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@ -914,27 +1077,32 @@ namespace NLGUI
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}
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else if (props[i] == "background-position")
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{
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//style.StyleRules[props[i]] = "0% 0%";
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style.StyleRules[props[i]] = "0% 0%";
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style.StyleRules["background-position-x"] = "left 0%";
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style.StyleRules["background-position-y"] = "top 0%";
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}
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else if (props[i] == "background-size")
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{
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//style.StyleRules[props[i]] = "auto auto";
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style.StyleRules[props[i]] = "auto auto";
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}
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else if (props[i] == "background-repeat")
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{
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style.StyleRules[props[i]] = "repeat repeat";
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style.StyleRules[props[i]] = "repeat";
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}
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else if(props[i] == "background-attachment")
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{
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//style.StyleRules[props[i]] = "scroll";
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style.StyleRules[props[i]] = "scroll";
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}
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else if(props[i] == "background-origin")
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{
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//style.StyleRules[props[i]] = "padding-box";
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style.StyleRules[props[i]] = "padding-box";
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}
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else if (props[i] == "background-clip")
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{
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//style.StyleRules[props[i]] = "border-box";
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if (bgClipFound)
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style.StyleRules[props[i]] = bgClipValue;
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else
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style.StyleRules[props[i]] = "border-box";
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}
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else if (props[i] == "background-color")
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{
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@ -5048,7 +5048,7 @@ namespace NLGUI
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// TODO: else
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// default background color is transparent, so image does not show
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if (!_Style.hasStyle("background-color"))
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if (!_Style.hasStyle("background-color") || _Style.checkStyle("background-color", "transparent"))
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{
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_Style.applyStyle("background-color: #fff;");
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}
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