diff options
| -rw-r--r-- | doc/lua_api.txt | 10 | ||||
| -rw-r--r-- | src/guiFormSpecMenu.cpp | 101 | ||||
| -rw-r--r-- | src/guiFormSpecMenu.h | 6 |
3 files changed, 109 insertions, 8 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt index 9c96c41db..7b956dc74 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -1522,6 +1522,16 @@ examples. * `fixed_size`: `true`/`false` (optional) * deprecated: `invsize[<W>,<H>;]` +#### `position[<X>,<Y>]` +* Define the position of the formspec +* A value between 0.0 and 1.0 represents a position inside the screen +* The default value is the center of the screen (0.5, 0.5) + +#### `anchor[<X>,<Y>]` +* Define the anchor of the formspec +* A value between 0.0 and 1.0 represents an anchor inside the formspec +* The default value is the center of the formspec (0.5, 0.5) + #### `container[<X>,<Y>]` * Start of a container block, moves all physical elements in the container by (X, Y) * Must have matching container_end diff --git a/src/guiFormSpecMenu.cpp b/src/guiFormSpecMenu.cpp index 67b3a9ad0..ae3fad7c6 100644 --- a/src/guiFormSpecMenu.cpp +++ b/src/guiFormSpecMenu.cpp @@ -1706,6 +1706,74 @@ bool GUIFormSpecMenu::parseSizeDirect(parserData* data, std::string element) return true; } +bool GUIFormSpecMenu::parsePositionDirect(parserData *data, const std::string &element) +{ + if (element.empty()) + return false; + + std::vector<std::string> parts = split(element, '['); + + if (parts.size() != 2) + return false; + + std::string type = trim(parts[0]); + std::string description = trim(parts[1]); + + if (type != "position") + return false; + + parsePosition(data, description); + + return true; +} + +void GUIFormSpecMenu::parsePosition(parserData *data, const std::string &element) +{ + std::vector<std::string> parts = split(element, ','); + + if (parts.size() == 2) { + data->offset.X = stof(parts[0]); + data->offset.Y = stof(parts[1]); + return; + } + + errorstream << "Invalid position element (" << parts.size() << "): '" << element << "'" << std::endl; +} + +bool GUIFormSpecMenu::parseAnchorDirect(parserData *data, const std::string &element) +{ + if (element.empty()) + return false; + + std::vector<std::string> parts = split(element, '['); + + if (parts.size() != 2) + return false; + + std::string type = trim(parts[0]); + std::string description = trim(parts[1]); + + if (type != "anchor") + return false; + + parseAnchor(data, description); + + return true; +} + +void GUIFormSpecMenu::parseAnchor(parserData *data, const std::string &element) +{ + std::vector<std::string> parts = split(element, ','); + + if (parts.size() == 2) { + data->anchor.X = stof(parts[0]); + data->anchor.Y = stof(parts[1]); + return; + } + + errorstream << "Invalid anchor element (" << parts.size() << "): '" << element << "'" << std::endl; +} + void GUIFormSpecMenu::parseElement(parserData* data, std::string element) { //some prechecks @@ -1917,6 +1985,8 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize) mydata.size= v2s32(100,100); mydata.screensize = screensize; + mydata.offset = v2f32(0.5f, 0.5f); + mydata.anchor = v2f32(0.5f, 0.5f); // Base position of contents of form mydata.basepos = getBasePos(); @@ -1983,6 +2053,21 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize) } } + /* "position" element is always after "size" element if it used */ + for (; i< elements.size(); i++) { + if (!parsePositionDirect(&mydata, elements[i])) { + break; + } + } + + /* "anchor" element is always after "position" (or "size" element) if it used */ + for (; i< elements.size(); i++) { + if (!parseAnchorDirect(&mydata, elements[i])) { + break; + } + } + + if (mydata.explicit_size) { // compute scaling for specified form size if (m_lock) { @@ -2066,10 +2151,10 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize) padding.Y*2+spacing.Y*(mydata.invsize.Y-1.0)+imgsize.Y + m_btn_height*2.0/3.0 ); DesiredRect = mydata.rect = core::rect<s32>( - mydata.screensize.X/2 - mydata.size.X/2 + offset.X, - mydata.screensize.Y/2 - mydata.size.Y/2 + offset.Y, - mydata.screensize.X/2 + mydata.size.X/2 + offset.X, - mydata.screensize.Y/2 + mydata.size.Y/2 + offset.Y + (s32)((f32)mydata.screensize.X * mydata.offset.X) - (s32)(mydata.anchor.X * (f32)mydata.size.X) + offset.X, + (s32)((f32)mydata.screensize.Y * mydata.offset.Y) - (s32)(mydata.anchor.Y * (f32)mydata.size.Y) + offset.Y, + (s32)((f32)mydata.screensize.X * mydata.offset.X) + (s32)((1.0 - mydata.anchor.X) * (f32)mydata.size.X) + offset.X, + (s32)((f32)mydata.screensize.Y * mydata.offset.Y) + (s32)((1.0 - mydata.anchor.Y) * (f32)mydata.size.Y) + offset.Y ); } else { // Non-size[] form must consist only of text fields and @@ -2078,10 +2163,10 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize) m_font = g_fontengine->getFont(); m_btn_height = font_line_height(m_font) * 0.875; DesiredRect = core::rect<s32>( - mydata.screensize.X/2 - 580/2, - mydata.screensize.Y/2 - 300/2, - mydata.screensize.X/2 + 580/2, - mydata.screensize.Y/2 + 300/2 + (s32)((f32)mydata.screensize.X * mydata.offset.X) - (s32)(mydata.anchor.X * 580.0), + (s32)((f32)mydata.screensize.Y * mydata.offset.Y) - (s32)(mydata.anchor.Y * 300.0), + (s32)((f32)mydata.screensize.X * mydata.offset.X) + (s32)((1.0 - mydata.anchor.X) * 580.0), + (s32)((f32)mydata.screensize.Y * mydata.offset.Y) + (s32)((1.0 - mydata.anchor.Y) * 300.0) ); } recalculateAbsolutePosition(false); diff --git a/src/guiFormSpecMenu.h b/src/guiFormSpecMenu.h index 2ab7db4f1..bbab9c164 100644 --- a/src/guiFormSpecMenu.h +++ b/src/guiFormSpecMenu.h @@ -447,6 +447,8 @@ private: bool explicit_size; v2f invsize; v2s32 size; + v2f32 offset; + v2f32 anchor; core::rect<s32> rect; v2s32 basepos; v2u32 screensize; @@ -502,6 +504,10 @@ private: bool parseVersionDirect(std::string data); bool parseSizeDirect(parserData* data, std::string element); void parseScrollBar(parserData* data, std::string element); + bool parsePositionDirect(parserData *data, const std::string &element); + void parsePosition(parserData *data, const std::string &element); + bool parseAnchorDirect(parserData *data, const std::string &element); + void parseAnchor(parserData *data, const std::string &element); void tryClose(); |