diff options
Diffstat (limited to 'widgets')
| -rw-r--r-- | widgets/FormattedListboxTextItem.cpp | 165 | ||||
| -rw-r--r-- | widgets/FormattedListboxTextItem.h | 54 | ||||
| -rw-r--r-- | widgets/README | 1 |
3 files changed, 220 insertions, 0 deletions
diff --git a/widgets/FormattedListboxTextItem.cpp b/widgets/FormattedListboxTextItem.cpp new file mode 100644 index 0000000..b9362cc --- /dev/null +++ b/widgets/FormattedListboxTextItem.cpp @@ -0,0 +1,165 @@ +#include "FormattedListboxTextItem.h" + +namespace CEGUI +{ +//----------------------------------------------------------------------------// +FormattedListboxTextItem::FormattedListboxTextItem(const String& text, + const HorizontalTextFormatting format, + const uint item_id, + void* const item_data, + const bool disabled, + const bool auto_delete) : + // initialise base class + ListboxTextItem(text, item_id, item_data, disabled, auto_delete), + // initialise subclass fields + d_formatting(format), + d_formattedRenderedString(0) +{ +} + +//----------------------------------------------------------------------------// +FormattedListboxTextItem::~FormattedListboxTextItem() +{ + delete d_formattedRenderedString; +} + +//----------------------------------------------------------------------------// +HorizontalTextFormatting FormattedListboxTextItem::getFormatting() const +{ + return d_formatting; +} + +//----------------------------------------------------------------------------// +void FormattedListboxTextItem::setFormatting(const HorizontalTextFormatting fmt) +{ + if (fmt == d_formatting) + return; + + d_formatting = fmt; + delete d_formattedRenderedString; + d_formattedRenderedString = 0; + d_formattingAreaSize = Size(0, 0); +} + +//----------------------------------------------------------------------------// +Size FormattedListboxTextItem::getPixelSize(void) const +{ + if (!d_owner) + return Size(0, 0); + + // reparse text if we need to. + if (!d_renderedStringValid) + parseTextString(); + + // create formatter if needed + if (!d_formattedRenderedString) + setupStringFormatter(); + + // get size of render area from target window, to see if we need to reformat + const Size area_sz(static_cast<const Listbox*>(d_owner)-> + getListRenderArea().getSize()); + if (area_sz != d_formattingAreaSize) + { + d_formattedRenderedString->format(area_sz); + d_formattingAreaSize = area_sz; + } + + return Size(d_formattedRenderedString->getHorizontalExtent(), + d_formattedRenderedString->getVerticalExtent()); +} + +//----------------------------------------------------------------------------// +void FormattedListboxTextItem::draw(GeometryBuffer& buffer, + const Rect& targetRect, + float alpha, const Rect* clipper) const +{ + // reparse text if we need to. + if (!d_renderedStringValid) + parseTextString(); + + // create formatter if needed + if (!d_formattedRenderedString) + setupStringFormatter(); + + // get size of render area from target window, to see if we need to reformat + // NB: We do not use targetRect, since it may not represent the same area. + const Size area_sz(static_cast<const Listbox*>(d_owner)-> + getListRenderArea().getSize()); + if (area_sz != d_formattingAreaSize) + { + d_formattedRenderedString->format(area_sz); + d_formattingAreaSize = area_sz; + } + + // draw selection imagery + if (d_selected && d_selectBrush != 0) + d_selectBrush->draw(buffer, targetRect, clipper, + getModulateAlphaColourRect(d_selectCols, alpha)); + + // factor the window alpha into our colours. + const ColourRect final_colours( + getModulateAlphaColourRect(ColourRect(0xFFFFFFFF), alpha)); + + // draw the formatted text + d_formattedRenderedString->draw(buffer, targetRect.getPosition(), + &final_colours, clipper); +} + +//----------------------------------------------------------------------------// +void FormattedListboxTextItem::setupStringFormatter() const +{ + // delete any existing formatter + delete d_formattedRenderedString; + d_formattedRenderedString = 0; + + // create new formatter of whichever type... + switch(d_formatting) + { + case HTF_LEFT_ALIGNED: + d_formattedRenderedString = + new LeftAlignedRenderedString(d_renderedString); + break; + + case HTF_RIGHT_ALIGNED: + d_formattedRenderedString = + new RightAlignedRenderedString(d_renderedString); + break; + + case HTF_CENTRE_ALIGNED: + d_formattedRenderedString = + new CentredRenderedString(d_renderedString); + break; + + case HTF_JUSTIFIED: + d_formattedRenderedString = + new JustifiedRenderedString(d_renderedString); + break; + + case HTF_WORDWRAP_LEFT_ALIGNED: + d_formattedRenderedString = + new RenderedStringWordWrapper + <LeftAlignedRenderedString>(d_renderedString); + break; + + case HTF_WORDWRAP_RIGHT_ALIGNED: + d_formattedRenderedString = + new RenderedStringWordWrapper + <RightAlignedRenderedString>(d_renderedString); + break; + + case HTF_WORDWRAP_CENTRE_ALIGNED: + d_formattedRenderedString = + new RenderedStringWordWrapper + <CentredRenderedString>(d_renderedString); + break; + + case HTF_WORDWRAP_JUSTIFIED: + d_formattedRenderedString = + new RenderedStringWordWrapper + <JustifiedRenderedString>(d_renderedString); + break; + } +} + +//----------------------------------------------------------------------------// +} diff --git a/widgets/FormattedListboxTextItem.h b/widgets/FormattedListboxTextItem.h new file mode 100644 index 0000000..efe5ff2 --- /dev/null +++ b/widgets/FormattedListboxTextItem.h @@ -0,0 +1,54 @@ +#ifndef FORMATTEDLISTBOXTEXTITEM_H +#define FORMATTEDLISTBOXTEXTITEM_H + +// TODO: Remove temporary workaround for CEGUI + GCC 4.6 +#include <cstddef> + +#include "CEGUI.h" + +namespace CEGUI +{ +//! A ListboxItem based class that can do horizontal text formatiing. +class FormattedListboxTextItem : public ListboxTextItem +{ +public: + //! Constructor + FormattedListboxTextItem(const String& text, + const HorizontalTextFormatting format = HTF_LEFT_ALIGNED, + const uint item_id = 0, + void* const item_data = 0, + const bool disabled = false, + const bool auto_delete = true); + + //! Destructor. + ~FormattedListboxTextItem(); + + //! Return the current formatting set. + HorizontalTextFormatting getFormatting() const; + /*! + Set the formatting. You should call Listbox::handleUpdatedItemData + after setting the formatting in order to update the listbox. We do not + do it automatically since you may wish to batch changes to multiple + items and multiple calls to handleUpdatedItemData is wasteful. + */ + void setFormatting(const HorizontalTextFormatting fmt); + + // overriden functions. + Size getPixelSize(void) const; + void draw(GeometryBuffer& buffer, const Rect& targetRect, + float alpha, const Rect* clipper) const; + +protected: + //! Helper to create a FormattedRenderedString of an appropriate type. + void setupStringFormatter() const; + //! Current formatting set + HorizontalTextFormatting d_formatting; + //! Class that renders RenderedString with some formatting. + mutable FormattedRenderedString* d_formattedRenderedString; + //! Tracks target area for rendering so we can reformat when needed + mutable Size d_formattingAreaSize; +}; + +} + +#endif diff --git a/widgets/README b/widgets/README new file mode 100644 index 0000000..3682ee3 --- /dev/null +++ b/widgets/README @@ -0,0 +1 @@ +FormattedListboxTextItem source: http://www.cegui.org.uk/phpBB2/viewtopic.php?f=10&t=4322 |