ultimatepp/uppsrc/Draw/FontWin32.cpp
cxl 9d2e3258a6 Draw: GetTextSize sanitized for <32 characters
git-svn-id: svn://ultimatepp.org/upp/trunk@11765 f0d560ea-af0d-0410-9eb7-867de7ffcac7
2018-02-06 10:50:38 +00:00

424 lines
11 KiB
C++

#include "Draw.h"
namespace Upp {
#ifndef CUSTOM_FONTSYS
#ifdef PLATFORM_WIN32
#define LLOG(x) // LOG(x)
#define LTIMING(x) // TIMING(x)
#define FONTCACHE 96
struct HFontEntry {
Font font;
HFONT hfont;
int angle;
};
HFONT GetWin32Font(Font fnt, int angle)
{
LTIMING("GetWin32Font");
static HFontEntry cache[FONTCACHE];
ONCELOCK {
for(int i = 0; i < FONTCACHE; i++)
cache[i].font.Height(-30000);
}
HFontEntry be;
be = cache[0];
for(int i = 0; i < FONTCACHE; i++) {
HFontEntry e = cache[i];
if(i)
cache[i] = be;
if(e.font == fnt && e.angle == angle) {
if(i)
cache[0] = e;
return e.hfont;
}
be = e;
}
LTIMING("GetWin32Font2");
if(be.hfont)
DeleteObject(be.hfont);
be.font = fnt;
be.angle = angle;
#ifdef PLATFORM_WINCE
LOGFONT lfnt;
Zero(lfnt);
lfnt.lfHeight = fnt.GetHeight() ? -abs(fnt.GetHeight()) : -12;
lfnt.lfWeight = fnt.IsBold() ? FW_BOLD : FW_NORMAL;
lfnt.lfItalic = fnt.IsItalic();
lfnt.lfUnderline = fnt.IsUnderline();
lfnt.lfStrikeOut = fnt.IsStrikeout();
wcscpy(lfnt.lfFaceName, ToSystemCharset(fnt.GetFaceName()));
be.hfont = CreateFontIndirect(&lfnt);
#else
be.hfont = CreateFont(
fnt.GetHeight() ? -abs(fnt.GetHeight()) : -12,
fnt.GetWidth(), angle, angle, fnt.IsBold() ? FW_BOLD : FW_NORMAL,
fnt.IsItalic(), fnt.IsUnderline(), fnt.IsStrikeout(),
fnt.GetFace() == Font::SYMBOL ? SYMBOL_CHARSET : DEFAULT_CHARSET,
fnt.IsTrueTypeOnly() ? OUT_TT_ONLY_PRECIS : OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,
fnt.IsNonAntiAliased() ? NONANTIALIASED_QUALITY : DEFAULT_QUALITY,
DEFAULT_PITCH|FF_DONTCARE,
fnt.GetFaceName()
);
#endif
cache[0] = be;
return be.hfont;
}
/*
int sGetCW(HDC hdc, wchar *h, int n)
{
SIZE sz;
return GetTextExtentPoint32W(hdc, h, n, &sz) ? sz.cx : 0;
}
*/
static void Win32_GetGlyphIndices(HDC hdc, LPCWSTR s, int n, LPWORD r, DWORD flag)
{
typedef DWORD (WINAPI *GGIW)(HDC, LPCWSTR, int, LPWORD, DWORD);
static GGIW fn;
ONCELOCK
if(HMODULE hDLL = LoadLibrary("gdi32"))
fn = (GGIW) GetProcAddress(hDLL, "GetGlyphIndicesW");
if(fn)
fn(hdc, s, n, r, flag);
else
memset(r, 0, n * sizeof(WORD));
}
HDC Win32_IC()
{
static HDC hdc;
ONCELOCK {
hdc = CreateIC("DISPLAY", NULL, NULL, NULL);
}
return hdc;
}
CommonFontInfo GetFontInfoSys(Font font)
{
CommonFontInfo fi;
memset(&fi, 0, sizeof(fi));
HFONT hfont = GetWin32Font(font, 0);
if(hfont) {
HDC hdc = Win32_IC();
HFONT ohfont = (HFONT) ::SelectObject(hdc, hfont);
TEXTMETRIC tm;
::GetTextMetrics(hdc, &tm);
fi.ascent = tm.tmAscent;
fi.descent = tm.tmDescent;
fi.external = tm.tmExternalLeading;
fi.internal = tm.tmInternalLeading;
fi.height = fi.ascent + fi.descent;
fi.lineheight = fi.height + fi.external;
fi.overhang = tm.tmOverhang;
fi.avewidth = tm.tmAveCharWidth;
fi.maxwidth = tm.tmMaxCharWidth;
fi.firstchar = tm.tmFirstChar;
fi.charcount = tm.tmLastChar - tm.tmFirstChar + 1;
fi.default_char = tm.tmDefaultChar;
fi.fixedpitch = (tm.tmPitchAndFamily & TMPF_FIXED_PITCH) == 0;
fi.ttf = fi.scaleable = tm.tmPitchAndFamily & TMPF_TRUETYPE;
if(fi.scaleable) {
ABC abc;
GetCharABCWidths(hdc, 'o', 'o', &abc);
fi.spacebefore = abc.abcA;
fi.spaceafter = abc.abcC;
}
else
fi.spacebefore = fi.spaceafter = 0;
::SelectObject(hdc, ohfont);
}
return fi;
}
static VectorMap<String, FaceInfo> *sList;
static int CALLBACK Win32_AddFace(const LOGFONT *logfont, const TEXTMETRIC *, dword type, LPARAM param)
{
#ifdef PLATFORM_WINCE
const wchar *facename = (const wchar *)param;
if(facename && _wcsicmp(logfont->lfFaceName, facename))
return 1;
#else
const char *facename = (const char *)param;
if(facename && stricmp(logfont->lfFaceName, facename))
return 1;
#endif
if(logfont->lfFaceName[0] == '@')
return 1;
#ifdef PLATFORM_WINCE
FontFaceInfo& f = sFontFace().GetAdd(WString(logfont->lfFaceName).ToString());
f.name = FromSystemCharset(logfont->lfFaceName);
#else
String name = FromSystemCharset(logfont->lfFaceName);
if(FindIndex(Split("Courier New CE;Courier New CYR;Courier New Greek;"
"Courier New TUR;Courier New Baltic;Arial CE;Arial CYR;"
"Arial Greek;Arial TUR;Arial Baltic;Arial CE;Times New Roman CE;"
"Times New Roman CYR;Times New Roman Greek;Times New Roman TUR;"
"Times New Roman Baltic;Times New Roman CE", ';'), name) >= 0)
return 1;
int q = sList->Find(name);
FaceInfo& f = q < 0 ? sList->Add(logfont->lfFaceName) : (*sList)[q];
f.name = FromSystemCharset(logfont->lfFaceName);
#endif
if(q < 0)
f.info = Font::SCALEABLE;
if((logfont->lfPitchAndFamily & 3) == FIXED_PITCH)
f.info |= Font::FIXEDPITCH;
if(!(type & TRUETYPE_FONTTYPE))
f.info &= ~Font::SCALEABLE;
if(logfont->lfCharSet == SYMBOL_CHARSET || logfont->lfCharSet == OEM_CHARSET)
f.info |= Font::SPECIAL;
return facename ? 0 : 1;
}
static int Win32_EnumFace(HDC hdc, const char *face)
{
#ifdef PLATFORM_WINCE
return EnumFontFamilies(hdc, ToSystemCharset(face), Win32_AddFace, (LPARAM)~ToSystemCharset(face));
#else
return EnumFontFamilies(hdc, face, Win32_AddFace, (LPARAM)face);
#endif
}
static void Win32_ForceFace(HDC hdc, const char *face, const char *aface)
{
if(!aface)
aface = "Arial";
if(Win32_EnumFace(hdc, face) && Win32_EnumFace(hdc, aface))
Panic("Missing font " + String(face));
}
Vector<FaceInfo> GetAllFacesSys()
{
VectorMap<String, FaceInfo> list;
sList = &list;
list.Add("STDFONT").name = "STDFONT";
list.Top().info = 0;
#ifdef PLATFORM_WINCE
HDC hdc = CreateDC(NULL, NULL, NULL, NULL);
Win32_ForceFace(hdc, "Tahoma", NULL);
Win32_ForceFace(hdc, "Tahoma", "Tahoma");
Win32_ForceFace(hdc, "Courier New", "Tahoma");
Win32_ForceFace(hdc, "Tahoma", "Tahoma");
Win32_ForceFace(hdc, "Tahoma", "Tahoma");
Win32_ForceFace(hdc, "Tahoma", "Tahoma");
#else
HDC hdc = CreateIC("DISPLAY", NULL, NULL, NULL);
Win32_ForceFace(hdc, "Times New Roman", "Arial");
Win32_ForceFace(hdc, "Arial", "Arial");
Win32_ForceFace(hdc, "Courier New", "Arial");
Win32_ForceFace(hdc, "Symbol", "Arial");
Win32_ForceFace(hdc, "WingDings", "Arial");
Win32_ForceFace(hdc, "Tahoma", "Arial");
#endif
Win32_EnumFace(hdc, NULL);
DeleteDC(hdc);
return list.PickValues();
}
#define GLYPHINFOCACHE 31
#ifdef flagWINGL
#include <CoreGl/FontGl.h>
#include <CoreGl/ResGl.h>
GlyphInfo GetGlyphInfoSys(Font font, int chr)
{
static GlyphInfo gi;
const OpenGLFont& fi = resources.GetFont(font);
gi.width = chr < fi.chars.GetCount() ? int(fi.chars[chr].xadvance * fi.scale + 0.5f) : 0;
gi.lspc = 0;
gi.rspc = 0;
return gi;
}
#else
GlyphInfo GetGlyphInfoSys(Font font, int chr)
{
static Font fnt[GLYPHINFOCACHE];
static int pg[GLYPHINFOCACHE];
static GlyphInfo li[GLYPHINFOCACHE][256];
ONCELOCK {
for(int i = 0; i < GLYPHINFOCACHE; i++)
pg[i] = -1;
}
int page = chr >> 8;
int q = CombineHash(font, page) % GLYPHINFOCACHE;
if(fnt[q] != font || pg[q] != page) {
fnt[q] = font;
pg[q] = page;
HFONT hfont = GetWin32Font(font, 0);
if(!hfont) {
GlyphInfo n;
memset(&n, 0, sizeof(GlyphInfo));
return n;
}
HDC hdc = Win32_IC();
HFONT ohfont = (HFONT) ::SelectObject(hdc, hfont);
int from = page << 8;
GlyphInfo *t = li[q];
/* if(page >= 32) {
wchar h[3];
h[0] = 'x';
h[1] = 'x';
h[2] = 'x';
int w0 = sGetCW(hdc, h, 2);
for(int i = 0; i < 256; i++) {
h[1] = from + i;
t[i].width = sGetCW(hdc, h, 3) - w0;
t[i].lspc = t[i].rspc = 0;
}
}
else */{
bool abca = false, abcw = false;
Buffer<ABC> abc(256);
abcw = ::GetCharABCWidthsW(hdc, from, from + 256 - 1, abc);
#ifndef PLATFORM_WINCE
if(!abcw)
abca = ::GetCharABCWidthsA(hdc, from, from + 256 - 1, abc);
#endif
if(abcw)
{
for(ABC *s = abc, *lim = abc + 256; s < lim; s++, t++)
{
t->width = s->abcA + s->abcB + s->abcC;
t->lspc = s->abcA;
t->rspc = s->abcC;
}
}
else
{
Buffer<int> wb(256);
#ifdef PLATFORM_WINCE
::GetCharWidth32(hdc, from, from + 256 - 1, wb);
#else
::GetCharWidthW(hdc, from, from + 256 - 1, wb);
#endif
for(int *s = wb, *lim = wb + 256; s < lim; s++, t++)
{
t->width = *s - GetFontInfoSys(font).overhang;
if(abca)
{
ABC aa = abc[(byte)ToAscii(from++)];
t->lspc = aa.abcA;
t->rspc = aa.abcC;
}
else
t->lspc = t->rspc = 0;
}
}
}
#ifndef PLATFORM_WINCE
WORD pos[256];
WCHAR wch[256];
for(int i = 0; i < 256; i++)
wch[i] = from + i;
Win32_GetGlyphIndices(hdc, wch, 256, pos, 1);
for(int i = 0; i < 256; i++)
if(pos[i] == 0xffff) {
li[q][i].width = (int16)0x8000;
li[q][i].lspc = li[q][i].rspc = 0;
}
#endif
::SelectObject(hdc, ohfont);
}
return li[q][chr & 255];
}
#endif
String GetFontDataSys(Font font)
{
String r;
HFONT hfont = GetWin32Font(font, 0);
if(hfont) {
HDC hdc = Win32_IC();
HFONT ohfont = (HFONT) ::SelectObject(hdc, hfont);
DWORD size = GetFontData(hdc, 0, 0, NULL, 0);
if(size == GDI_ERROR) {
LLOG("PdfDraw::Finish: GDI_ERROR on font " << pdffont.GetKey(i));
return Null;
}
StringBuffer b(size);
GetFontData(hdc, 0, 0, b, size);
::SelectObject(hdc, ohfont);
r = b;
}
return r;
}
double fx_to_dbl(const FIXED& p) {
return double(p.value) + double(p.fract) * (1.0 / 65536.0);
}
Pointf fx_to_dbl(const Pointf& pp, const POINTFX& p) {
return Pointf(pp.x + fx_to_dbl(p.x), pp.y - fx_to_dbl(p.y));
}
void RenderCharPath(const char* gbuf, unsigned total_size, FontGlyphConsumer& sw, double xx, double yy)
{
const char* cur_glyph = gbuf;
const char* end_glyph = gbuf + total_size;
Pointf pp(xx, yy);
while(cur_glyph < end_glyph) {
const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph;
const char* end_poly = cur_glyph + th->cb;
const char* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER);
sw.Move(fx_to_dbl(pp, th->pfxStart));
while(cur_poly < end_poly) {
const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly;
if (pc->wType == TT_PRIM_LINE)
for(int i = 0; i < pc->cpfx; i++)
sw.Line(fx_to_dbl(pp, pc->apfx[i]));
if (pc->wType == TT_PRIM_QSPLINE)
for(int u = 0; u < pc->cpfx - 1; u++) {
Pointf b = fx_to_dbl(pp, pc->apfx[u]);
Pointf c = fx_to_dbl(pp, pc->apfx[u + 1]);
if (u < pc->cpfx - 2)
c = Mid(b, c);
sw.Quadratic(b, c);
}
cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx;
}
sw.Close();
cur_glyph += th->cb;
}
}
void RenderCharacterSys(FontGlyphConsumer& sw, double x, double y, int ch, Font fnt)
{
HFONT hfont = GetWin32Font(fnt, 0);
if(hfont) {
HDC hdc = Win32_IC();
HFONT ohfont = (HFONT) ::SelectObject(hdc, hfont);
GLYPHMETRICS gm;
MAT2 m_matrix;
memset(&m_matrix, 0, sizeof(m_matrix));
m_matrix.eM11.value = 1;
m_matrix.eM22.value = 1;
int gsz = GetGlyphOutlineW(hdc, ch, GGO_NATIVE, &gm, 0, NULL, &m_matrix);
if(gsz < 0)
return;
StringBuffer gb(gsz);
gsz = GetGlyphOutlineW(hdc, ch, GGO_NATIVE, &gm, gsz, ~gb, &m_matrix);
if(gsz < 0)
return;
RenderCharPath(~gb, gsz, sw, x, y + fnt.GetAscent());
::SelectObject(hdc, ohfont);
}
}
#endif
#endif
}