mirror of
https://github.com/dborth/fceugx.git
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481 lines
8.7 KiB
C++
481 lines
8.7 KiB
C++
/****************************************************************************
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* libwiigui
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*
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* Tantric 2009
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*
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* gui_text.cpp
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*
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* GUI class definitions
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***************************************************************************/
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#include "gui.h"
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#include "../utils/gettext.h"
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static GXColor presetColor = (GXColor){255, 255, 255, 255};
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static int currentSize = 0;
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static int presetSize = 0;
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static int presetMaxWidth = 0;
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static int presetAlignmentHor = 0;
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static int presetAlignmentVert = 0;
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static u16 presetStyle = 0;
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#define TEXT_SCROLL_DELAY 8
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#define TEXT_SCROLL_INITIAL_DELAY 6
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/**
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* Constructor for the GuiText class.
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*/
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GuiText::GuiText(const char * t, int s, GXColor c)
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{
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origText = NULL;
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text = NULL;
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size = s;
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color = c;
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alpha = c.a;
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style = FTGX_JUSTIFY_CENTER | FTGX_ALIGN_MIDDLE;
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maxWidth = 0;
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wrap = false;
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textDynNum = 0;
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textScroll = SCROLL_NONE;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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alignmentHor = ALIGN_CENTRE;
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alignmentVert = ALIGN_MIDDLE;
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if(t)
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{
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origText = strdup(t);
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text = charToWideChar(gettext(t));
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}
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for(int i=0; i < 20; i++)
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textDyn[i] = NULL;
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}
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/**
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* Constructor for the GuiText class, uses presets
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*/
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GuiText::GuiText(const char * t)
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{
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origText = NULL;
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text = NULL;
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size = presetSize;
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color = presetColor;
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alpha = presetColor.a;
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style = presetStyle;
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maxWidth = presetMaxWidth;
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wrap = false;
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textDynNum = 0;
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textScroll = SCROLL_NONE;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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alignmentHor = presetAlignmentHor;
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alignmentVert = presetAlignmentVert;
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if(t)
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{
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origText = strdup(t);
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text = charToWideChar(gettext(t));
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}
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for(int i=0; i < 20; i++)
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textDyn[i] = NULL;
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}
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/**
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* Destructor for the GuiText class.
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*/
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GuiText::~GuiText()
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{
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if(origText)
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free(origText);
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if(text)
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delete[] text;
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if(textDynNum > 0)
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{
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for(int i=0; i < textDynNum; i++)
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if(textDyn[i])
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delete[] textDyn[i];
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}
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}
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void GuiText::SetText(const char * t)
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{
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if(origText)
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free(origText);
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if(text)
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delete[] text;
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if(textDynNum > 0)
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{
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for(int i=0; i < textDynNum; i++)
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if(textDyn[i])
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delete[] textDyn[i];
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}
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origText = NULL;
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text = NULL;
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textDynNum = 0;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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if(t)
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{
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origText = strdup(t);
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text = charToWideChar(gettext(t));
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}
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}
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void GuiText::SetWText(wchar_t * t)
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{
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if(origText)
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free(origText);
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if(text)
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delete[] text;
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if(textDynNum > 0)
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{
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for(int i=0; i < textDynNum; i++)
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if(textDyn[i])
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delete[] textDyn[i];
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}
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origText = NULL;
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text = NULL;
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textDynNum = 0;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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if(t)
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text = wcsdup(t);
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}
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int GuiText::GetLength()
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{
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if(!text)
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return 0;
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return wcslen(text);
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}
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void GuiText::SetPresets(int sz, GXColor c, int w, u16 s, int h, int v)
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{
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presetSize = sz;
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presetColor = c;
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presetStyle = s;
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presetMaxWidth = w;
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presetAlignmentHor = h;
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presetAlignmentVert = v;
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}
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void GuiText::SetFontSize(int s)
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{
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size = s;
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}
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void GuiText::SetMaxWidth(int width)
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{
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maxWidth = width;
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for(int i=0; i < textDynNum; i++)
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{
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if(textDyn[i])
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{
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delete[] textDyn[i];
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textDyn[i] = NULL;
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}
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}
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textDynNum = 0;
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}
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int GuiText::GetTextWidth()
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{
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if(!text)
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return 0;
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if(currentSize != size)
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{
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ChangeFontSize(size);
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if(!fontSystem[size])
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fontSystem[size] = new FreeTypeGX(size);
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currentSize = size;
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}
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return fontSystem[size]->getWidth(text);
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}
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void GuiText::SetWrap(bool w, int width)
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{
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wrap = w;
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maxWidth = width;
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for(int i=0; i < textDynNum; i++)
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{
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if(textDyn[i])
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{
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delete[] textDyn[i];
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textDyn[i] = NULL;
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}
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}
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textDynNum = 0;
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}
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void GuiText::SetScroll(int s)
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{
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if(textScroll == s)
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return;
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for(int i=0; i < textDynNum; i++)
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{
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if(textDyn[i])
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{
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delete[] textDyn[i];
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textDyn[i] = NULL;
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}
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}
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textDynNum = 0;
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textScroll = s;
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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textScrollDelay = TEXT_SCROLL_DELAY;
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}
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void GuiText::SetColor(GXColor c)
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{
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color = c;
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alpha = c.a;
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}
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void GuiText::SetStyle(u16 s)
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{
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style = s;
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}
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void GuiText::SetAlignment(int hor, int vert)
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{
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style = 0;
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switch(hor)
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{
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case ALIGN_LEFT:
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style |= FTGX_JUSTIFY_LEFT;
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break;
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case ALIGN_RIGHT:
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style |= FTGX_JUSTIFY_RIGHT;
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break;
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default:
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style |= FTGX_JUSTIFY_CENTER;
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break;
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}
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switch(vert)
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{
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case ALIGN_TOP:
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style |= FTGX_ALIGN_TOP;
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break;
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case ALIGN_BOTTOM:
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style |= FTGX_ALIGN_BOTTOM;
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break;
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default:
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style |= FTGX_ALIGN_MIDDLE;
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break;
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}
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alignmentHor = hor;
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alignmentVert = vert;
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}
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void GuiText::ResetText()
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{
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if(!origText)
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return;
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if(text)
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delete[] text;
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text = charToWideChar(gettext(origText));
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for(int i=0; i < textDynNum; i++)
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{
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if(textDyn[i])
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{
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delete[] textDyn[i];
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textDyn[i] = NULL;
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}
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}
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textDynNum = 0;
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currentSize = 0;
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}
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/**
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* Draw the text on screen
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*/
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void GuiText::Draw()
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{
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if(!text)
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return;
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if(!this->IsVisible())
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return;
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GXColor c = color;
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c.a = this->GetAlpha();
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int newSize = size*this->GetScale();
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if(newSize > MAX_FONT_SIZE)
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newSize = MAX_FONT_SIZE;
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if(newSize != currentSize)
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{
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ChangeFontSize(newSize);
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if(!fontSystem[newSize])
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fontSystem[newSize] = new FreeTypeGX(newSize);
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currentSize = newSize;
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}
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if(maxWidth == 0)
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{
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fontSystem[currentSize]->drawText(this->GetLeft(), this->GetTop(), text, c, style);
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this->UpdateEffects();
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return;
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}
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u32 textlen = wcslen(text);
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if(wrap)
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{
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if(textDynNum == 0)
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{
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u32 n = 0, ch = 0;
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int linenum = 0;
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int lastSpace = -1;
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int lastSpaceIndex = -1;
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while(ch < textlen && linenum < 20)
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{
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if(n == 0)
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textDyn[linenum] = new wchar_t[textlen + 1];
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textDyn[linenum][n] = text[ch];
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textDyn[linenum][n+1] = 0;
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if(text[ch] == ' ' || ch == textlen-1)
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{
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if(fontSystem[currentSize]->getWidth(textDyn[linenum]) > maxWidth)
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{
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if(lastSpace >= 0)
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{
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textDyn[linenum][lastSpaceIndex] = 0; // discard space, and everything after
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ch = lastSpace; // go backwards to the last space
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lastSpace = -1; // we have used this space
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lastSpaceIndex = -1;
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}
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++linenum;
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n = -1;
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}
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else if(ch == textlen-1)
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{
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++linenum;
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}
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}
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if(text[ch] == ' ' && n >= 0)
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{
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lastSpace = ch;
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lastSpaceIndex = n;
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}
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++ch;
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++n;
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}
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textDynNum = linenum;
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}
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int lineheight = newSize + 6;
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int voffset = 0;
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if(alignmentVert == ALIGN_MIDDLE)
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voffset = (lineheight >> 1) * (1-textDynNum);
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int left = this->GetLeft();
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int top = this->GetTop() + voffset;
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for(int i=0; i < textDynNum; ++i)
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fontSystem[currentSize]->drawText(left, top+i*lineheight, textDyn[i], c, style);
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}
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else
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{
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if(textDynNum == 0)
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{
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textDynNum = 1;
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textDyn[0] = wcsdup(text);
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int len = wcslen(textDyn[0]);
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while(fontSystem[currentSize]->getWidth(textDyn[0]) > maxWidth)
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textDyn[0][--len] = 0;
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}
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if(textScroll == SCROLL_HORIZONTAL)
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{
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if(fontSystem[currentSize]->getWidth(text) > maxWidth && (FrameTimer % textScrollDelay == 0))
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{
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if(textScrollInitialDelay)
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{
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--textScrollInitialDelay;
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}
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else
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{
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++textScrollPos;
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if((u32)textScrollPos > textlen-1)
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{
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textScrollPos = 0;
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textScrollInitialDelay = TEXT_SCROLL_INITIAL_DELAY;
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}
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wcscpy(textDyn[0], &text[textScrollPos]);
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u32 dynlen = wcslen(textDyn[0]);
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if(dynlen+2 < textlen)
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{
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textDyn[0][dynlen] = ' ';
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textDyn[0][dynlen+1] = ' ';
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textDyn[0][dynlen+2] = 0;
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dynlen += 2;
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}
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if(fontSystem[currentSize]->getWidth(textDyn[0]) > maxWidth)
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{
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while(fontSystem[currentSize]->getWidth(textDyn[0]) > maxWidth)
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textDyn[0][--dynlen] = 0;
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}
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else
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{
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int i = 0;
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while(fontSystem[currentSize]->getWidth(textDyn[0]) < maxWidth && dynlen+1 < textlen)
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{
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textDyn[0][dynlen] = text[i++];
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textDyn[0][++dynlen] = 0;
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}
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if(fontSystem[currentSize]->getWidth(textDyn[0]) > maxWidth)
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textDyn[0][dynlen-2] = 0;
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else
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textDyn[0][dynlen-1] = 0;
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}
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}
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}
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}
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fontSystem[currentSize]->drawText(this->GetLeft(), this->GetTop(), textDyn[0], c, style);
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}
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this->UpdateEffects();
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}
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