code.vuplus.com Git - vuplus_dvbapp/blob - lib/gui/elabel.cpp

   1 #include <lib/gui/elabel.h>
   2
   3 #include <lib/gdi/fb.h>
   4 #include <lib/gdi/font.h>
   5 #include <lib/gdi/lcd.h>
   6 #include <lib/gui/eskin.h>
   7 #include <lib/base/init.h>
   8 #include <lib/base/init_num.h>
   9
  10 eLabel::eLabel(eWidget *parent, int flags, int takefocus, const char *deco ):
  11         eDecoWidget(parent, takefocus, deco), blitFlags(0), flags(flags),
  12         para(0), align( eTextPara::dirLeft ), shortcutPixmap(0)
  13 {
  14 }
  15
  16 eLabel::~eLabel()
  17 {
  18         if (para)
  19         {
  20                 para->destroy();
  21                 para=0;
  22         }
  23 }
  24
  25 void eLabel::setPixmapPosition( const ePoint &p )
  26 {
  27         pixmap_position = p;
  28         invalidate();
  29 }
  30
  31 void eLabel::validate( const eSize* s )
  32 {
  33         if (!para)
  34         {
  35                 if (s)
  36                         para=new eTextPara( eRect(text_position.x(), text_position.y(), s->width() - text_position.x(), s->height() - text_position.y()));
  37                 else
  38                         para=new eTextPara( eRect(text_position.x(), text_position.y(), size.width() - text_position.x(), size.height() - text_position.y()));
  39
  40                 para->setFont(font);
  41                 para->renderString(text, flags);
  42                 para->realign(align);
  43   }
  44 }
  45
  46 void eLabel::invalidate()
  47 {
  48         if (para)
  49         {
  50                 para->destroy();
  51                 para=0;
  52         }
  53         if (isVisible())
  54                 eDecoWidget::invalidate();  // we must redraw...
  55 }
  56
  57 void eLabel::setFlags(int flag)
  58 {
  59         flags|=flag;
  60         if (flag)
  61                 invalidate();
  62 }
  63
  64 void eLabel::setBlitFlags( int flags )
  65 {
  66         blitFlags |= flags;
  67 }
  68
  69 void eLabel::removeFlags(int flag)
  70 {
  71         flags &= ~flag;
  72         if (flag)
  73                 invalidate();
  74 }
  75
  76 void eLabel::setAlign(int align)
  77 {
  78         this->align = align;
  79         invalidate();
  80 }
  81
  82 void eLabel::redrawWidget(gPainter *target, const eRect &rc)
  83 {
  84 /*      eDebug("decoStr = %s, text=%s, name=%s, %p left = %d, top = %d, width=%d, height = %d", strDeco?strDeco.c_str():"no", text?text.c_str():"no" , name?name.c_str():"no", this, this->getPosition().x(), this->getPosition().y(), this->getSize().width(), this->getSize().height() );
  85         eDebug("renderContext left = %d, top = %d, width = %d, height = %d", rc.left(), rc.top(), rc.width(), rc.height() );*/
  86
  87         target->clip( gRegion(rc) );
  88         eRect area=eRect(ePoint(0, 0), ePoint(width(), height()));
  89 /*      eDebug("area left = %d, top = %d, width = %d, height = %d",
  90                 area.left(), area.top(),
  91                 area.width(), area.height() );*/
  92
  93         if (deco_selected && have_focus)
  94         {
  95                 deco_selected.drawDecoration(target, ePoint(width(), height()));
  96                 area=crect_selected;
  97         } else if (deco)
  98         {
  99                 deco.drawDecoration(target, ePoint(width(), height()));
 100                 area=crect;
 101         }
 102 /*      eDebug("area left = %d, top = %d, width = %d, height = %d",
 103                 area.left(), area.top(),
 104                 area.width(), area.height() );*/
 105
 106         if (shortcutPixmap)
 107         {
 108                 //area.setWidth(area.width()-area.height());
 109                 area.setX(area.height());
 110         }
 111
 112         if (text.length())
 113         {
 114                 if ( area.size().height() < size.height() ||
 115                                 area.size().width() < size.width() )
 116                 {
 117                 // then deco is drawed
 118                         eSize s=area.size();
 119                         validate( &s );
 120                 } else
 121                         validate();
 122
 123                 if (flags & flagVCenter)
 124                         yOffs = ( (area.height() - para->getBoundBox().height() ) / 2 + 0) - para->getBoundBox().top();
 125                 else
 126                         yOffs = 0;
 127
 128                 eWidget *w;
 129                 if ((blitFlags & BF_ALPHATEST) && (transparentBackgroundColor >= 0))
 130                 {
 131                         w=this;
 132                         target->setBackgroundColor(transparentBackgroundColor);
 133                 } else
 134                 {
 135                         w=getNonTransparentBackground();
 136                         target->setBackgroundColor(w->getBackgroundColor());
 137                 }
 138                 target->setFont(font);
 139                 target->renderPara(para, ePoint( area.left(), area.top()+yOffs) );
 140         }
 141         if (pixmap)
 142         {
 143 //              eDebug("blit pixmap area left=%d, top=%d, right=%d, bottom=%d", rc.left(), rc.top(), rc.right(), rc.bottom() );
 144 //              eDebug("pixmap_pos x = %d, y = %d, xsize=%d, ysize=%d", pixmap_position.x(), pixmap_position.y(), pixmap->x, pixmap->y );
 145                 target->blit(pixmap, shortcutPixmap?pixmap_position+ePoint( area.left(), 0):pixmap_position, area, (blitFlags & BF_ALPHATEST) ? gPixmap::blitAlphaTest : 0);
 146         }
 147         if (shortcutPixmap)
 148                 target->blit(shortcutPixmap,
 149                                 ePoint((area.height()-shortcutPixmap->getSize().width())/2, area.top()+(area.height()-shortcutPixmap->getSize().height())/2),
 150                                 eRect(),
 151                                 gPixmap::blitAlphaTest);
 152         target->clippop();
 153 }
 154
 155 int eLabel::eventHandler(const eWidgetEvent &event)
 156 {
 157         switch (event.type)
 158         {
 159                 case eWidgetEvent::changedFont:
 160                 case eWidgetEvent::changedText:
 161                 if (para)
 162                 {
 163                         para->destroy();
 164                         para=0;
 165                 }
 166                 if ( have_focus && deco_selected )
 167                         eDecoWidget::invalidate( crect_selected );
 168                 else if ( deco )
 169                         eDecoWidget::invalidate( crect );
 170                 else
 171                         eDecoWidget::invalidate();
 172         break;
 173
 174         case eWidgetEvent::changedSize:
 175                 invalidate();
 176         break;
 177
 178         default:
 179                 return eDecoWidget::eventHandler(event);
 180                 break;
 181         }
 182         return 1;
 183 }
 184
 185 eSize eLabel::getExtend()
 186 {
 187         validate();
 188         return eSize(para->getBoundBox().width()+(shortcutPixmap?shortcutPixmap->x*2:0), para->getBoundBox().height());
 189 }
 190
 191 ePoint eLabel::getLeftTop()
 192 {
 193         validate();
 194         return ePoint(para->getBoundBox().left(), para->getBoundBox().top());
 195 }
 196
 197 int eLabel::setProperty(const eString &prop, const eString &value)
 198 {
 199         if (prop=="wrap" && value == "on")
 200                 setFlags(RS_WRAP);
 201         else if (prop=="alphatest" && value == "on")
 202         {
 203                 transparentBackgroundColor=getBackgroundColor();
 204                 setBackgroundColor(-1);
 205                 blitFlags |= BF_ALPHATEST;
 206         } else if (prop=="align")
 207         {
 208                 if (value=="left")
 209                         setAlign(eTextPara::dirLeft);
 210                 else if (value=="center")
 211                         setAlign(eTextPara::dirCenter);
 212                 else if (value=="right")
 213                         setAlign(eTextPara::dirRight);
 214                 else if (value=="block")
 215                         setAlign(eTextPara::dirBlock);
 216                 else
 217                         setAlign(eTextPara::dirLeft);
 218         }
 219         else if (prop=="vcenter")
 220                 setFlags( flagVCenter );
 221         else if (prop == "shortcut")
 222         {
 223                 setShortcutPixmap(value);
 224                 return eWidget::setProperty(prop, value);
 225         } else
 226                 return eDecoWidget::setProperty(prop, value);
 227         return 0;
 228 }
 229
 230 void eLabel::setShortcutPixmap(const eString &shortcut)
 231 {
 232         eSkin::getActive()->queryImage(shortcutPixmap, "shortcut." + shortcut);
 233 }
 234
 235 static eWidget *create_eLabel(eWidget *parent)
 236 {
 237         return new eLabel(parent);
 238 }
 239
 240 class eLabelSkinInit
 241 {
 242 public:
 243         eLabelSkinInit()
 244         {
 245                 eSkin::addWidgetCreator("eLabel", create_eLabel);
 246         }
 247         ~eLabelSkinInit()
 248         {
 249                 eSkin::removeWidgetCreator("eLabel", create_eLabel);
 250         }
 251 };
 252
 253 eAutoInitP0<eLabelSkinInit> init_eLabelSkinInit(eAutoInitNumbers::guiobject, "eLabel");