usbloadergx/source/libwiigui/gui_text.cpp

269 lines
5.0 KiB
C++

/****************************************************************************
* libwiigui
*
* Tantric 2009
*
* gui_text.cpp
*
* GUI class definitions
***************************************************************************/
#include "gui.h"
static int currentSize = 0;
static int presetSize = 0;
static int presetMaxWidth = 0;
static int presetAlignmentHor = 0;
static int presetAlignmentVert = 0;
static u16 presetStyle = 0;
static GXColor presetColor = (GXColor){255, 255, 255, 255};
/**
* Constructor for the GuiText class.
*/
GuiText::GuiText(const char * t, int s, GXColor c)
{
text = NULL;
size = s;
color = c;
alpha = c.a;
style = FTGX_JUSTIFY_CENTER | FTGX_ALIGN_MIDDLE;
maxWidth = 0;
font = NULL;
alignmentHor = ALIGN_CENTRE;
alignmentVert = ALIGN_MIDDLE;
if(t)
text = fontSystem->charToWideChar((char *)t);
}
/**
* Constructor for the GuiText class, uses presets
*/
GuiText::GuiText(const char * t)
{
text = NULL;
size = presetSize;
color = presetColor;
alpha = presetColor.a;
style = presetStyle;
maxWidth = presetMaxWidth;
font = NULL;
alignmentHor = presetAlignmentHor;
alignmentVert = presetAlignmentVert;
if(t)
text = fontSystem->charToWideChar((char *)t);
}
/**
* Destructor for the GuiText class.
*/
GuiText::~GuiText()
{
if(text)
{
delete text;
text = NULL;
}
}
void GuiText::SetText(const char * t)
{
LOCK(this);
if(text)
delete text;
text = NULL;
if(t)
text = fontSystem->charToWideChar((char *)t);
}
void GuiText::SetPresets(int sz, GXColor c, int w, u16 s, int h, int v)
{
presetSize = sz;
presetColor = c;
presetStyle = s;
presetMaxWidth = w;
presetAlignmentHor = h;
presetAlignmentVert = v;
}
void GuiText::SetFontSize(int s)
{
LOCK(this);
size = s;
}
void GuiText::SetMaxWidth(int w)
{
LOCK(this);
maxWidth = w;
}
void GuiText::SetColor(GXColor c)
{
LOCK(this);
color = c;
alpha = c.a;
}
void GuiText::SetStyle(u16 s)
{
LOCK(this);
style = s;
}
void GuiText::SetAlignment(int hor, int vert)
{
LOCK(this);
style = 0;
switch(hor)
{
case ALIGN_LEFT:
style |= FTGX_JUSTIFY_LEFT;
break;
case ALIGN_RIGHT:
style |= FTGX_JUSTIFY_RIGHT;
break;
default:
style |= FTGX_JUSTIFY_CENTER;
break;
}
switch(vert)
{
case ALIGN_TOP:
style |= FTGX_ALIGN_TOP;
break;
case ALIGN_BOTTOM:
style |= FTGX_ALIGN_BOTTOM;
break;
default:
style |= FTGX_ALIGN_MIDDLE;
break;
}
alignmentHor = hor;
alignmentVert = vert;
}
/**
* Set the Font
*/
void GuiText::SetFont(FreeTypeGX *f)
{
LOCK(this);
font = f;
}
int GuiText::GetTextWidth()
{
LOCK(this);
int newSize = size*this->GetScale();
if(newSize != currentSize)
{
//fontSystem->changeSize(newSize);
(font ? font : fontSystem)->changeSize(newSize);
currentSize = newSize;
}
return (font ? font : fontSystem)->getWidth(text);
}
/**
* Draw the text on screen
*/
void GuiText::Draw()
{
LOCK(this);
if(!text)
return;
if(!this->IsVisible())
return;
GXColor c = color;
c.a = this->GetAlpha();
int newSize = size*this->GetScale();
if(newSize != currentSize)
{
//fontSystem->changeSize(newSize);
(font ? font : fontSystem)->changeSize(newSize);
currentSize = newSize;
}
int voffset = 0;
if(alignmentVert == ALIGN_MIDDLE)
voffset = -newSize/2 + 2;
if(maxWidth > 0) // text wrapping
{
int lineheight = newSize + 6;
int strlen = wcslen(text);
int i = 0;
int ch = 0;
int linenum = 0;
int lastSpace = -1;
int lastSpaceIndex = -1;
wchar_t * tmptext[20];
while(ch < strlen)
{
if(i == 0)
tmptext[linenum] = new wchar_t[strlen + 1];
tmptext[linenum][i] = text[ch];
tmptext[linenum][i+1] = 0;
if(text[ch] == ' ' || ch == strlen-1)
{
if((font ? font : fontSystem)->getWidth(tmptext[linenum]) >= maxWidth)
//if(fontSystem->getWidth(tmptext[linenum]) >= maxWidth)
{
if(lastSpace >= 0)
{
tmptext[linenum][lastSpaceIndex] = 0; // discard space, and everything after
ch = lastSpace; // go backwards to the last space
lastSpace = -1; // we have used this space
lastSpaceIndex = -1;
}
linenum++;
i = -1;
}
else if(ch == strlen-1)
{
linenum++;
}
}
if(text[ch] == ' ' && i >= 0)
{
lastSpace = ch;
lastSpaceIndex = i;
}
ch++;
i++;
}
if(alignmentVert == ALIGN_MIDDLE)
voffset = voffset - (lineheight*linenum)/2 + lineheight/2;
for(i=0; i < linenum; i++)
{
(font ? font : fontSystem)->drawText(this->GetLeft(), this->GetTop()+voffset+i*lineheight, tmptext[i], c, style);
//fontSystem->drawText(this->GetLeft(), this->GetTop()+voffset+i*lineheight, tmptext[i], c, style);
delete tmptext[i];
}
}
else
{
(font ? font : fontSystem)->drawText(this->GetLeft(), this->GetTop()+voffset, text, c, style);
//fontSystem->drawText(this->GetLeft(), this->GetTop()+voffset, text, c, style);
}
this->UpdateEffects();
}