mirror of https://github.com/ZDoom/raze-gles.git
249 lines
6.9 KiB
C++
249 lines
6.9 KiB
C++
/*
|
|
** v_text.cpp
|
|
** Draws text to a canvas. Also has a text line-breaker thingy.
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 1998-2006 Randy Heit
|
|
** All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions
|
|
** are met:
|
|
**
|
|
** 1. Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** 2. Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in the
|
|
** documentation and/or other materials provided with the distribution.
|
|
** 3. The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <ctype.h>
|
|
#include <wctype.h>
|
|
|
|
#include "utf8.h"
|
|
#include "v_text.h"
|
|
|
|
#include "drawparms.h"
|
|
#include "v_draw.h"
|
|
#include "image.h"
|
|
#include "v_2ddrawer.h"
|
|
#include "../fonts/v_font.h"
|
|
|
|
class FFont;
|
|
|
|
//==========================================================================
|
|
//
|
|
// Internal texture drawing function
|
|
//
|
|
//==========================================================================
|
|
|
|
void DrawTexture(F2DDrawer *drawer, FTexture* img, double x, double y, int tags_first, ...)
|
|
{
|
|
Va_List tags;
|
|
va_start(tags.list, tags_first);
|
|
DrawParms parms;
|
|
|
|
bool res = ParseDrawTextureTags(img, x, y, tags_first, tags, &parms, false);
|
|
va_end(tags.list);
|
|
if (!res)
|
|
{
|
|
return;
|
|
}
|
|
drawer->AddTexture(img, parms);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// DrawChar
|
|
//
|
|
// Write a single character using the given font
|
|
//
|
|
//==========================================================================
|
|
|
|
void DrawChar (F2DDrawer* drawer, FFont *font, int normalcolor, double x, double y, int character, int tag_first, ...)
|
|
{
|
|
if (font == NULL)
|
|
return;
|
|
|
|
if (normalcolor >= NumTextColors)
|
|
normalcolor = CR_UNTRANSLATED;
|
|
|
|
FTexture *pic;
|
|
int dummy;
|
|
bool redirected;
|
|
|
|
if (NULL != (pic = font->GetChar (character, normalcolor, &dummy, &redirected)))
|
|
{
|
|
DrawParms parms;
|
|
Va_List tags;
|
|
va_start(tags.list, tag_first);
|
|
bool res = ParseDrawTextureTags(pic, x, y, tag_first, tags, &parms, false);
|
|
va_end(tags.list);
|
|
if (!res)
|
|
{
|
|
return;
|
|
}
|
|
PalEntry color = 0xffffffff;
|
|
parms.color = PalEntry((color.a * parms.color.a) / 255, (color.r * parms.color.r) / 255, (color.g * parms.color.g) / 255, (color.b * parms.color.b) / 255);
|
|
drawer->AddTexture(pic, parms);
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// DrawText
|
|
//
|
|
// Write a string using the given font
|
|
//
|
|
//==========================================================================
|
|
|
|
// This is only needed as a dummy. The code using wide strings does not need color control.
|
|
EColorRange V_ParseFontColor(const char32_t *&color_value, int normalcolor, int boldcolor) { return CR_UNTRANSLATED; }
|
|
|
|
template<class chartype>
|
|
void DrawTextCommon(F2DDrawer* drawer, FFont *font, int normalcolor, double x, double y, const chartype *string, DrawParms &parms)
|
|
{
|
|
int w;
|
|
const chartype *ch;
|
|
int c;
|
|
double cx;
|
|
double cy;
|
|
int boldcolor;
|
|
FRemapTable *range;
|
|
int kerning;
|
|
FTexture *pic;
|
|
|
|
if (parms.celly == 0) parms.celly = font->GetHeight() + 1;
|
|
parms.celly *= parms.scaley;
|
|
|
|
if (normalcolor >= NumTextColors)
|
|
normalcolor = CR_UNTRANSLATED;
|
|
boldcolor = normalcolor ? normalcolor - 1 : NumTextColors - 1;
|
|
|
|
PalEntry colorparm = parms.color;
|
|
PalEntry color = 0xffffffff;
|
|
range = font->GetColorTranslation((EColorRange)normalcolor, &color);
|
|
parms.color = PalEntry(colorparm.a, (color.r * colorparm.r) / 255, (color.g * colorparm.g) / 255, (color.b * colorparm.b) / 255);
|
|
|
|
kerning = font->GetDefaultKerning();
|
|
|
|
ch = string;
|
|
cx = x;
|
|
cy = y;
|
|
|
|
if (parms.monospace == EMonospacing::CellCenter)
|
|
cx += parms.spacing / 2;
|
|
else if (parms.monospace == EMonospacing::CellRight)
|
|
cx += parms.spacing;
|
|
|
|
|
|
auto currentcolor = normalcolor;
|
|
while (ch - string < parms.maxstrlen)
|
|
{
|
|
c = GetCharFromString(ch);
|
|
if (!c)
|
|
break;
|
|
|
|
if (c == TEXTCOLOR_ESCAPE)
|
|
{
|
|
EColorRange newcolor = V_ParseFontColor(ch, normalcolor, boldcolor);
|
|
if (newcolor != CR_UNDEFINED)
|
|
{
|
|
range = font->GetColorTranslation(newcolor, &color);
|
|
parms.color = PalEntry(colorparm.a, (color.r * colorparm.r) / 255, (color.g * colorparm.g) / 255, (color.b * colorparm.b) / 255);
|
|
currentcolor = newcolor;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (c == '\n')
|
|
{
|
|
cx = x;
|
|
cy += parms.celly;
|
|
continue;
|
|
}
|
|
|
|
bool redirected = false;
|
|
if (NULL != (pic = font->GetChar(c, currentcolor, &w, &redirected)))
|
|
{
|
|
SetTextureParms(&parms, pic, cx, cy);
|
|
if (parms.cellx)
|
|
{
|
|
w = parms.cellx;
|
|
parms.destwidth = parms.cellx;
|
|
parms.destheight = parms.celly;
|
|
}
|
|
if (parms.monospace == EMonospacing::CellLeft)
|
|
parms.left = 0;
|
|
else if (parms.monospace == EMonospacing::CellCenter)
|
|
parms.left = w / 2.;
|
|
else if (parms.monospace == EMonospacing::CellRight)
|
|
parms.left = w;
|
|
|
|
drawer->AddTexture(pic, parms);
|
|
}
|
|
if (parms.monospace == EMonospacing::Off)
|
|
{
|
|
cx += (w + kerning + parms.spacing) * parms.scalex;
|
|
}
|
|
else
|
|
{
|
|
cx += (parms.spacing) * parms.scalex;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DrawText(F2DDrawer* drawer, FFont *font, int normalcolor, double x, double y, const char *string, int tag_first, ...)
|
|
{
|
|
Va_List tags;
|
|
DrawParms parms;
|
|
|
|
if (font == NULL || string == NULL)
|
|
return;
|
|
|
|
va_start(tags.list, tag_first);
|
|
bool res = ParseDrawTextureTags(nullptr, 0, 0, tag_first, tags, &parms, true);
|
|
va_end(tags.list);
|
|
if (!res)
|
|
{
|
|
return;
|
|
}
|
|
DrawTextCommon(drawer, font, normalcolor, x, y, (const uint8_t*)string, parms);
|
|
}
|
|
|
|
void DrawText(F2DDrawer* drawer, FFont *font, int normalcolor, double x, double y, const char32_t *string, int tag_first, ...)
|
|
{
|
|
Va_List tags;
|
|
DrawParms parms;
|
|
|
|
if (font == NULL || string == NULL)
|
|
return;
|
|
|
|
va_start(tags.list, tag_first);
|
|
bool res = ParseDrawTextureTags(nullptr, 0, 0, tag_first, tags, &parms, true);
|
|
va_end(tags.list);
|
|
if (!res)
|
|
{
|
|
return;
|
|
}
|
|
DrawTextCommon(drawer, font, normalcolor, x, y, string, parms);
|
|
}
|
|
|