usbloadergx/source/libwiigui/gui_text.cpp

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/****************************************************************************
* libwiigui
*
* Tantric 2009
*
* gui_text.cpp
*
* GUI class definitions
***************************************************************************/
#include "gui.h"
static int currentSize = 0;
static int currentWidescreen = 0;
static int presetSize = 0;
static GXColor presetColor = (GXColor){255, 255, 255, 255};
static int presetMaxWidth = 0;
static int presetWrapMode = GuiText::WRAP;
static u16 presetStyle = FTGX_NULL;
static int presetAlignmentHor = 0;
static int presetAlignmentVert = 0;
/**
* 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;
wrapMode = GuiText::WRAP;
scrollPos1 = 0;
scrollPos2 = 0;
scrollDelay = 0;
font = NULL;
widescreen = 0; //added
alignmentHor = ALIGN_CENTRE;
alignmentVert = ALIGN_MIDDLE;
if(t)
text = FreeTypeGX::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;
wrapMode = presetWrapMode;
scrollPos1 = 0;
scrollPos2 = 0;
scrollDelay = 0;
font = NULL;
widescreen = 0; //added
alignmentHor = presetAlignmentHor;
alignmentVert = presetAlignmentVert;
if(t)
text = FreeTypeGX::charToWideChar((char *)t);
}
/**
* Destructor for the GuiText class.
*/
GuiText::~GuiText()
{
if(text)
{
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delete [] text;
text = NULL;
}
}
void GuiText::SetText(const char * t)
{
LOCK(this);
if(text)
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delete [] text;
text = NULL;
if(t)
text = FreeTypeGX::charToWideChar((char *)t);
scrollPos2 = 0;
scrollDelay = 0;
}
void GuiText::SetTextf(const char *format, ...)
{
char *tmp=0;
va_list va;
va_start(va, format);
if((vasprintf(&tmp, format, va)>=0) && tmp)
{
this->SetText(tmp);
free(tmp);
}
va_end(va);
}
void GuiText::SetPresets(int sz, GXColor c, int w, int wrap, u16 s, int h, int v)
{
presetSize = sz;
presetColor = c;
presetMaxWidth = w;
presetWrapMode = wrap;
presetStyle = s;
presetAlignmentHor = h;
presetAlignmentVert = v;
}
void GuiText::SetFontSize(int s)
{
LOCK(this);
size = s;
}
void GuiText::SetMaxWidth(int w, short m/*=GuiText::WRAP*/)
{
LOCK(this);
maxWidth = w;
wrapMode = m;
}
void GuiText::SetColor(GXColor c)
{
LOCK(this);
color = c;
alpha = c.a;
}
void GuiText::SetStyle(u16 s, u16 m/*=0xffff*/)
{
LOCK(this);
style &= ~m;
style |= s & m;
}
void GuiText::SetAlignment(int hor, int vert)
{
LOCK(this);
style = FTGX_NULL;
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;
}
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/**
* Set the Font
*/
void GuiText::SetFont(FreeTypeGX *f)
{
LOCK(this);
font = f;
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}
int GuiText::GetTextWidth()
{
LOCK(this);
if(!text)
return 0;
int newSize = size*this->GetScale();
if(newSize != currentSize || currentWidescreen != widescreen)
{
//fontSystem->changeSize(newSize);
(font ? font : fontSystem)->changeSize(newSize, widescreen ? newSize*0.8 : 0);
currentSize = newSize;
currentWidescreen = widescreen;
}
return (font ? font : fontSystem)->getWidth(text);
}
void GuiText::SetWidescreen(bool w)
{
LOCK(this);
widescreen = w;
}
/**
* 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 || currentWidescreen != widescreen)
{
//fontSystem->changeSize(newSize);
(font ? font : fontSystem)->changeSize(newSize, widescreen ? newSize*0.8 : 0);
currentSize = newSize;
currentWidescreen = widescreen;
}
int voffset = 0;
// if(alignmentVert == ALIGN_MIDDLE)
// voffset = -newSize/2 + 2;
if(maxWidth > 0 && (font ? font : fontSystem)->getWidth(text) > maxWidth)
{
if(wrapMode == GuiText::WRAP) // 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);
delete tmptext[i];
}
}
else if(wrapMode == GuiText::DOTTED) // text dotted
{
wchar_t save[4];
int strlen = wcslen(text);
int dotPos=strlen-3;
int i;
bool drawed = false;
while(dotPos > 0 && drawed == false)
{
for(i=0; i<4; i++) // save Text for "..."
{
save[i] = text[dotPos+i];
text[dotPos+i] = (i != 3 ? _TEXT('.') : 0);
}
if(((font ? font : fontSystem)->getWidth(text)) <= maxWidth)
{
(font ? font : fontSystem)->drawText(this->GetLeft(), this->GetTop()+voffset, text, c, style);
drawed = true;
}
for(i=0; i<4; i++) // write saved Text back
text[dotPos+i] = save[i];
dotPos--;
}
if(!drawed)
(font ? font : fontSystem)->drawText(this->GetLeft(), this->GetTop()+voffset, text, c, style);
}
else if(wrapMode == GuiText::SCROLL) // text scroller
{
wchar_t save;
if(scrollPos2 == 0 || frameCount > scrollDelay+5)
{
scrollPos1 = 0;
scrollOffset = 0;
for(scrollPos2 = wcslen(text); scrollPos2 > 1; scrollPos2--)
{
save = text[scrollPos2]; // save Pos2
text[scrollPos2] = 0;
int textWidth = (font ? font : fontSystem)->getWidth(text);
text[scrollPos2] = save; // restore Pos2
if(textWidth <= maxWidth)
break;
}
scrollDelay = frameCount+50; // wait 50 Frames before beginning with scrolling
}
else if(scrollPos2 > 0 && frameCount >= scrollDelay)
{
if(--scrollOffset < 0)
{
wchar_t tmp[] = { text[scrollPos1], text[scrollPos1+1], 0 };
scrollOffset += (font ? font : fontSystem)->getWidth(tmp) - (font ? font : fontSystem)->getWidth(tmp+1);
scrollPos1++;
}
int strlen = wcslen(text);
for(; scrollPos2 < strlen; scrollPos2++)
{
save = text[scrollPos2+1]; // save Pos2
text[scrollPos2+1] = 0;
int textWidth = (font ? font : fontSystem)->getWidth(&text[scrollPos1]);
text[scrollPos2+1] = save; // restore Pos2
if(textWidth+scrollOffset > maxWidth)
break;
}
if(scrollPos2 == strlen)
{
scrollPos2 = -scrollPos2;
scrollDelay = frameCount+25; // when dir-change wait 25 Frames
}
else
scrollDelay = frameCount+1; // wait 1 Frames
}
else if(frameCount >= scrollDelay)
{
scrollPos2 = -scrollPos2;
scrollOffset++;
wchar_t tmp[] = { text[scrollPos1-1], text[scrollPos1], 0 };
int tmpOffset = (font ? font : fontSystem)->getWidth(tmp) - (font ? font : fontSystem)->getWidth(tmp+1);
if(scrollOffset >= tmpOffset)
{
scrollOffset -= tmpOffset;
scrollPos1--;
}
for(; scrollPos2 > scrollPos1; scrollPos2--)
{
save = text[scrollPos2]; // save Pos2
text[scrollPos2] = 0;
int textWidth = (font ? font : fontSystem)->getWidth(&text[scrollPos1]);
text[scrollPos2] = save; // restore Pos2
if(textWidth+scrollOffset <= maxWidth)
break;
}
if(scrollPos1 == 0)
{
scrollPos2 = -scrollPos2;
scrollDelay = frameCount+25; // when dir-change wait 25 Frames
}
else
scrollDelay = frameCount+1; // wait 10 Frames
scrollPos2 = -scrollPos2;
}
uint16_t drawStyle = style;
uint16_t drawX = this->GetLeft() + scrollOffset;
if((drawStyle & FTGX_JUSTIFY_MASK) == FTGX_JUSTIFY_CENTER)
{
drawStyle = (drawStyle & ~FTGX_JUSTIFY_MASK) | FTGX_JUSTIFY_LEFT;
drawX -= maxWidth >> 1;
}
else if((drawStyle & FTGX_JUSTIFY_MASK) == FTGX_JUSTIFY_RIGHT)
{
drawStyle = (drawStyle & ~FTGX_JUSTIFY_MASK) | FTGX_JUSTIFY_LEFT;
drawX -= maxWidth;
}
save = text[abs(scrollPos2)]; // save Pos2
text[abs(scrollPos2)] = 0;
(font ? font : fontSystem)->drawText(drawX, this->GetTop()+voffset, &text[scrollPos1], c, drawStyle);
text[abs(scrollPos2)] = save; // restore Pos2
}
}
else
{
(font ? font : fontSystem)->drawText(this->GetLeft(), this->GetTop()+voffset, text, c, style);
}
this->UpdateEffects();
}