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MuditaOS/module-gui/gui/widgets/Label.hpp
2020-01-10 14:15:28 +01:00

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3.4 KiB
C++

/*
* Label.h
*
* Created on: 7 mar 2019
* Author: robert
*/
#ifndef MIDDLEWARES_GUI_WIDGETS_LABEL_HPP_
#define MIDDLEWARES_GUI_WIDGETS_LABEL_HPP_
#include <string>
#include <list>
#include "../core/BoundingBox.hpp"
#include "../core/Font.hpp"
#include "../core/Color.hpp"
#include "../core/DrawCommand.hpp"
#include "../Common.hpp"
#include "Margins.hpp"
#include "Alignment.hpp"
#include "Rect.hpp"
#include "Style.hpp"
#include "utf8/UTF8.hpp"
namespace gui {
namespace meta
{
struct Meta
{
};
struct Item : public Meta
{
uint32_t radius = 0;
};
struct Rect : public Item
{
Rect &operator()(std::array<uint32_t, 4> xywh)
{
x = xywh[0], y = xywh[1], w = xywh[2], h = xywh[3];
return *this;
}
uint32_t x = 0, y = 0, w = 0, h = 0;
int32_t no_focus = style::window::default_border_no_focus_w;
int32_t focus = style::window::default_border_no_focus_w;
std::string font = style::window::font::medium;
bool dots = true;
uint32_t align = gui::Alignment::ALIGN_HORIZONTAL_LEFT | gui::Alignment::ALIGN_VERTICAL_CENTER;
RectangleEdgeFlags edges = gui::RectangleEdgeFlags::GUI_RECT_EDGE_TOP | gui::RectangleEdgeFlags::GUI_RECT_EDGE_BOTTOM;
};
struct Label : public Rect
{
const UTF8 text;
Label(std::array<uint32_t, 4> xywh)
{
operator()(xywh);
}
};
}; // namespace meta
class Label: public Rect {
protected:
UTF8 text;
UTF8 textDisplayed;
uint32_t charDrawableCount;
//number of pixels ccupied by displayed text;
uint32_t stringPixelWidth;
//color of the text
Color textColor;
//font pointer
Font* font;
//margins for text
Margins margins;
//type of alignment
Alignment alignment;
//flag that defines if 3 dots (ellipsis) are to be displayed at the end of label's text.
bool dotsMode;
//truncate a beginning or an end.
bool dotsTruncateEnd;
//flag that defines if a remaining area of the label has a horizontal line.
bool lineMode;
//area specified in pixels occupied by text inside label space.
//This defines also position of the text considering alignment and margins.
BoundingBox textArea;
//widgets to add line
Rect* lineFront = nullptr;
Rect* lineBack = nullptr;
void calculateDisplayText();
public:
Label();
Label( Item* parent, const uint32_t& x, const uint32_t& y, const uint32_t& w, const uint32_t& h, const UTF8& text = UTF8{} );
Label(Item *parent, meta::Label label);
virtual ~Label();
//Label's specific methods
virtual void setText( const UTF8& text );
virtual void clear();
virtual UTF8 getText();
virtual void setAlignement( const Alignment& alignment );
virtual void setMargins( const Margins& margins );
void setDotsMode( const bool val , const bool truncateEnd = true );
/**
* @brief Defines if remaining area of the label has a horizontal line.
*/
void setLineMode( const bool& val );
void setTextColor( Color color );
void setFont( const UTF8& fontName );
//virtual methods
std::list<DrawCommand*> buildDrawList() override;
void setPosition( const short& x, const short& y ) override;
void setSize( const short& w, const short& h ) override;
};
} /* namespace gui */
#endif /* MIDDLEWARES_GUI_WIDGETS_LABEL_HPP_ */