usbloadergx/source/libwiigui/gui_text.cpp
dimok321 3c6bf6523b Optimization Changes Part 1:
*Lots of changes in the TextDrawing stuff and FreeTypeGX to speed up the drawing
*Mostly optimization work which is not completely done yet, but mainly it is.
*You might not want to update to this revision right away there still might be bugs which are needed to be fixed. This is a version for everyone to test and report bugs caused by the changes.
*Vanishing WiiMotePointer should be fixed for the Settings/GameSettings probably (though it might still occur i am not sure if i didn't forget anything, there is just too much to change :P.
2009-10-17 20:48:52 +00:00

715 lines
16 KiB
C++

/****************************************************************************
* libwiigui
*
* Tantric 2009
*
* gui_text.cpp
*
* GUI class definitions
***************************************************************************/
#include "gui.h"
static int presetSize = 18;
static int presetMaxWidth = 0;
static int presetAlignmentHor = 0;
static int presetAlignmentVert = 0;
static int presetWrapMode = 0;
static u16 presetStyle = FTGX_NULL;
static GXColor presetColor = (GXColor){255, 255, 255, 255};
#define TEXT_SCROLL_DELAY 5
#define TEXT_SCROLL_INITIAL_DELAY 8
/**
* Constructor for the GuiText class.
*/
GuiText::GuiText(const char * t, int s, GXColor c)
{
origText = NULL;
text = NULL;
size = s;
currentSize = size;
color = c;
alpha = c.a;
style = FTGX_JUSTIFY_CENTER | FTGX_ALIGN_MIDDLE;
maxWidth = 0;
wrapMode = 0;
firstLine = 0;
linestodraw = 8;
totalLines = 0;
widescreen = 0; //added
LineBreak = NULL;
textDyn = NULL;
font = NULL;
textScrollPos = 0;
textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
textScrollDelay = TEXT_SCROLL_DELAY;
alignmentHor = ALIGN_CENTRE;
alignmentVert = ALIGN_MIDDLE;
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
textDynRow[i] = NULL;
if(t)
{
origText = strdup(t);
text = charToWideChar(t);
if(currentSize > MAX_FONT_SIZE)
currentSize = MAX_FONT_SIZE;
if(!fontSystem[currentSize])
{
fontSystem[currentSize] = new FreeTypeGX(currentSize);
}
textWidth = fontSystem[currentSize]->getWidth(text);
}
}
/**
* Constructor for the GuiText class, uses presets
*/
GuiText::GuiText(const char * t)
{
origText = NULL;
text = NULL;
size = presetSize;
currentSize = size;
color = presetColor;
alpha = presetColor.a;
style = presetStyle;
maxWidth = presetMaxWidth;
wrapMode = presetWrapMode;
firstLine = 0;
linestodraw = 8;
totalLines = 0;
widescreen = 0; //added
LineBreak = NULL;
textDyn = NULL;
font = NULL;
textScrollPos = 0;
textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
textScrollDelay = TEXT_SCROLL_DELAY;
alignmentHor = presetAlignmentHor;
alignmentVert = presetAlignmentVert;
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
textDynRow[i] = NULL;
if(t)
{
origText = strdup(t);
text = charToWideChar(t);
if(currentSize > MAX_FONT_SIZE)
currentSize = MAX_FONT_SIZE;
if(!fontSystem[currentSize])
{
fontSystem[currentSize] = new FreeTypeGX(currentSize);
}
textWidth = fontSystem[currentSize]->getWidth(text);
}
}
/**
* Destructor for the GuiText class.
*/
GuiText::~GuiText()
{
if(origText)
free(origText);
if(text)
delete [] text;
if(textDyn)
delete [] textDyn;
if(LineBreak) {
free(LineBreak);
LineBreak = NULL;
}
if(font)
{
delete font;
font = NULL;
}
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
{
if(textDynRow[i])
{
delete [] textDynRow[i];
textDynRow[i] = NULL;
}
}
}
void GuiText::SetText(const char * t)
{
if(t && origText)
if(strcmp(t, origText) == 0)
return;
LOCK(this);
if(origText)
free(origText);
if(text)
delete [] text;
if(textDyn)
delete [] textDyn;
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
{
if(textDynRow[i])
{
delete [] textDynRow[i];
textDynRow[i] = NULL;
}
}
origText = NULL;
text = NULL;
textDyn = NULL;
textScrollPos = 0;
textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
if(t)
{
origText = strdup(t);
text = charToWideChar(t);
textWidth = fontSystem[currentSize]->getWidth(text);
}
}
void GuiText::SetText(const wchar_t * t)
{
LOCK(this);
if(origText)
free(origText);
if(text)
delete [] text;
if(textDyn)
delete [] textDyn;
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
{
if(textDynRow[i])
{
delete [] textDynRow[i];
textDynRow[i] = NULL;
}
}
origText = NULL;
text = NULL;
textDyn = NULL;
textScrollPos = 0;
textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
if(t)
{
int len = wcslen(t);
text = new wchar_t[len+1];
if(text) wcscpy(text, t);
}
}
void GuiText::SetTextf(const char *format, ...)
{
LOCK(this);
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, u16 s, int h, int v)
{
LOCK(this);
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 width, int w)
{
LOCK(this);
maxWidth = width;
wrapMode = w;
if(w == LONGTEXT && text) {
int strlen = wcslen(text);
int i = 0;
int ch = 0;
int linenum = 0;
int lastSpace = -1;
int lastSpaceIndex = -1;
wchar_t *tmptext = new wchar_t[maxWidth];
LineBreak = (u32 *) malloc(sizeof(u32));
memset(&(LineBreak[linenum]), 0, sizeof(u32));
LineBreak[linenum] = 0;
linenum++;
while(ch < strlen)
{
tmptext[i] = text[ch];
tmptext[i+1] = 0;
if(text[ch] == ' ' || ch == strlen-1 || fontSystem[currentSize]->getWidth(tmptext) >= maxWidth)
{
if(fontSystem[currentSize]->getWidth(tmptext) >= maxWidth)
{
if(lastSpace >= 0)
{
tmptext[lastSpaceIndex] = 0; // discard space, and everything after
ch = lastSpace; // go backwards to the last space
lastSpace = -1; // we have used this space
lastSpaceIndex = -1;
}
LineBreak = (u32 *) realloc(LineBreak, (linenum+1)* sizeof(u32));
memset(&(LineBreak[linenum]), 0, sizeof(u32));
LineBreak[linenum] = ch;
linenum++;
i = -1;
}
}
if(text[ch] == ' ' && i >= 0)
{
lastSpace = ch+1;
lastSpaceIndex = i;
}
if(text[ch] == '\n')
{
LineBreak = (u32 *) realloc(LineBreak, (linenum+1)* sizeof(u32));
memset(&(LineBreak[linenum]), 0, sizeof(u32));
LineBreak[linenum] = ch+1;
linenum++;
i = -1;
lastSpace = -1;
lastSpaceIndex = -1;
}
ch++;
i++;
if(ch == strlen)
{
LineBreak = (u32 *) realloc(LineBreak, (linenum+1)* sizeof(u32));
memset(&(LineBreak[linenum]), 0, sizeof(u32));
LineBreak[linenum] = ch;
linenum++;
break;
}
}
delete [] tmptext;
totalLines = linenum;
}
else if(w == SCROLL_HORIZONTAL) {
textScrollPos = 0;
textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
textScrollDelay = TEXT_SCROLL_DELAY;
}
if(textDyn)
{
delete [] textDyn;
textDyn = NULL;
}
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
{
if(textDynRow[i])
{
delete [] textDynRow[i];
textDynRow[i] = NULL;
}
}
}
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;
}
int GuiText::GetTextWidth()
{
if(!text)
return 0;
return fontSystem[currentSize]->getWidth(text);
}
/**
* Set the lines to draw
*/
void GuiText::SetFirstLine(int line)
{
LOCK(this);
firstLine = line;
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
{
if(textDynRow[i])
{
delete [] textDynRow[i];
textDynRow[i] = NULL;
}
}
}
void GuiText::SetLinesToDraw(int line)
{
LOCK(this);
linestodraw = line;
if(linestodraw >= MAX_LINES_TO_DRAW)
linestodraw = MAX_LINES_TO_DRAW-1;
for(int i = 0; i < MAX_LINES_TO_DRAW; i++)
{
if(textDynRow[i])
{
delete [] textDynRow[i];
textDynRow[i] = NULL;
}
}
}
int GuiText::GetTotalLines()
{
return totalLines-1;
}
/**
* Change font
*/
bool GuiText::SetFont(const u8 *fontbuffer, const u32 filesize)
{
if(!fontbuffer || !filesize)
return false;
LOCK(this);
if(font)
{
delete font;
font = NULL;
}
font = new FreeTypeGX(currentSize, false, (u8 *) fontbuffer, filesize);
textWidth = font->getWidth(text);
return true;
}
/**
* Draw the text on screen
*/
void GuiText::Draw()
{
if(!text)
return;
if(!this->IsVisible())
return;
GXColor c = color;
c.a = this->GetAlpha();
int newSize = size*this->GetScale();
if(newSize > MAX_FONT_SIZE)
newSize = MAX_FONT_SIZE;
if(newSize != currentSize)
{
if(font)
{
font->ChangeFontSize(newSize);
}
else if(!fontSystem[newSize])
fontSystem[newSize] = new FreeTypeGX(newSize);
if(text)
textWidth = (font ? font : fontSystem[newSize])->getWidth(text);
currentSize = newSize;
}
if(maxWidth > 0 && maxWidth <= textWidth)
{
if(wrapMode == LONGTEXT) // text wrapping
{
int lineheight = newSize + 6;
if(!textDynRow[0])
{
int index = 0;
u32 strlen = (u32) wcslen(text);
int linenum = firstLine;
int lineIndex = 0;
u32 ch = LineBreak[linenum];
u32 lastch = LineBreak[linenum+linestodraw]+1;
textDynRow[lineIndex] = new wchar_t[maxWidth];
textDynRow[lineIndex][index] = 0;
while((ch < lastch) && (ch < strlen+1))
{
if(ch == LineBreak[linenum+1])
{
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop()+lineIndex*lineheight, textDynRow[lineIndex], c, style);
linenum++;
lineIndex++;
index = 0;
if(!textDynRow[lineIndex])
textDynRow[lineIndex] = new wchar_t[maxWidth];
textDynRow[lineIndex][index] = 0;
}
textDynRow[lineIndex][index] = text[ch];
textDynRow[lineIndex][index+1] = 0;
index++;
ch++;
}
}
else
{
for(int i = 0; i < linestodraw; i++)
if(textDynRow[i])
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop()+i*lineheight, textDynRow[i], c, style);
}
}
else if(wrapMode == DOTTED) // text dotted
{
if(!textDyn)
{
int strlen = wcslen(text);
int i = 0;
textDyn = new wchar_t[maxWidth];
while(i < strlen)
{
textDyn[i] = text[i];
textDyn[i+1] = 0;
if((font ? font : fontSystem[currentSize])->getWidth(textDyn) >= maxWidth)
{
textDyn[i-3] = '.';
textDyn[i-2] = '.';
textDyn[i-1] = '.';
textDyn[i] = 0;
break;
}
i++;
}
}
if(textDyn)
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop(), textDyn, c, style);
}
else if(wrapMode == SCROLL_HORIZONTAL)
{
int strlen = wcslen(text);
int ch = 0;
if(!textDyn) {
textDyn = new wchar_t[maxWidth];
while(ch < strlen)
{
textDyn[ch] = text[ch];
textDyn[ch+1] = 0;
ch++;
if((font ? font : fontSystem[currentSize])->getWidth(textDyn) >= maxWidth)
break;
}
}
if(maxWidth < textWidth && (frameCount % textScrollDelay == 0))
{
if(textScrollInitialDelay)
{
textScrollInitialDelay--;
}
else
{
textScrollPos++;
if(textScrollPos > strlen)
{
textScrollPos = 0;
textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
}
int ch = textScrollPos;
if(textDyn) {
delete [] textDyn;
textDyn = NULL;
}
textDyn = new wchar_t[maxWidth];
int i = 0;
while(1)
{
if(ch > strlen-1) {
textDyn[i++] = ' ';
textDyn[i++] = ' ';
textDyn[i++] = ' ';
textDyn[i+1] = 0;
ch = 0;
}
textDyn[i] = text[ch];
textDyn[i+1] = 0;
ch++;
i++;
if((font ? font : fontSystem[currentSize])->getWidth(textDyn) >= maxWidth)
break;
}
}
}
if(textDyn)
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop(), textDyn, c, style);
}
else if(wrapMode == WRAP)
{
int lineheight = newSize + 6;
if(!textDynRow[0])
{
int txtlen = wcslen(text);
int i = 0;
int ch = 0;
int linenum = 0;
int lastSpace = -1;
int lastSpaceIndex = -1;
while(ch < txtlen && linenum < MAX_LINES_TO_DRAW)
{
if(!textDynRow[linenum])
textDynRow[linenum] = new wchar_t[maxWidth];
textDynRow[linenum][i] = text[ch];
textDynRow[linenum][i+1] = 0;
if(text[ch] == ' ' || ch == txtlen-1)
{
if((font ? font : fontSystem[currentSize])->getWidth(textDynRow[linenum]) >= maxWidth)
{
if(lastSpace >= 0)
{
textDynRow[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 == txtlen-1)
{
linenum++;
}
}
if(text[ch] == ' ' && i >= 0)
{
lastSpace = ch;
lastSpaceIndex = i;
}
ch++;
i++;
}
linestodraw = linenum;
}
int voffset = 0;
if(alignmentVert == ALIGN_MIDDLE)
voffset = -(lineheight*linestodraw)/2 + lineheight/2;
for(int i=0; i < linestodraw; i++)
{
if(textDynRow[i])
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop()+voffset+i*lineheight, textDynRow[i], c, style);
}
}
else
{
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop(), text, c, style);
}
}
else
{
(font ? font : fontSystem[currentSize])->drawText(this->GetLeft(), this->GetTop(), text, c, style);
}
this->UpdateEffects();
}