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Choose font by wxWidgetDialog

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This commit is contained in:
Filip Sykala 2021-09-09 19:36:51 +02:00
parent 578abe4cce
commit 9d52ceee44
6 changed files with 317 additions and 109 deletions
src/libslic3r
Emboss.cpp

201
src/libslic3r/Emboss.cpp
View file

@ -25,13 +25,7 @@ public:
Privat() = delete;
static std::optional<stbtt_fontinfo> load_font_info(const Emboss::Font &font);
struct Glyph
{
Polygons polygons;
int advance_width, left_side_bearing;
};
static std::optional<Glyph> get_glyph(stbtt_fontinfo &font_info, int unicode_letter, float flatness = 2.f);
static std::optional<Emboss::Glyph> get_glyph(stbtt_fontinfo &font_info, int unicode_letter, float flatness = 2.f);
};
std::optional<stbtt_fontinfo> Privat::load_font_info(const Emboss::Font &font)
@ -49,7 +43,7 @@ std::optional<stbtt_fontinfo> Privat::load_font_info(const Emboss::Font &font)
return font_info;
}
std::optional<Privat::Glyph> Privat::get_glyph(stbtt_fontinfo &font_info, int unicode_letter, float flatness)
std::optional<Emboss::Glyph> Privat::get_glyph(stbtt_fontinfo &font_info, int unicode_letter, float flatness)
{
int glyph_index = stbtt_FindGlyphIndex(&font_info, unicode_letter);
if (glyph_index == 0) {
@ -58,7 +52,7 @@ std::optional<Privat::Glyph> Privat::get_glyph(stbtt_fontinfo &font_info, int un
return {};
}
Privat::Glyph glyph;
Emboss::Glyph glyph;
stbtt_GetGlyphHMetrics(&font_info, glyph_index, &glyph.advance_width, &glyph.left_side_bearing);
stbtt_vertex *vertices;
@ -96,16 +90,15 @@ std::optional<Privat::Glyph> Privat::get_glyph(stbtt_fontinfo &font_info, int un
// change outer cw to ccw and inner ccw to cw order
std::reverse(pts.begin(), pts.end());
glyph.polygons.emplace_back(pts);
}
// fix for bad defined fonts
glyph.polygons = union_(glyph.polygons);
// inner cw - hole
// outer ccw - contour
return glyph;
}
#ifdef _WIN32
#include <windows.h>
#include <wingdi.h>
@ -210,23 +203,46 @@ void choose_font_dlg() {
void get_OS_font()
{
HGDIOBJ g_hfFont = GetStockObject(DEFAULT_GUI_FONT);
LOGFONT lf;
HGDIOBJ g_hfFont = GetStockObject(DEFAULT_GUI_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "Default WIN font is " << (std::wstring) lf.lfFaceName
<< std::endl;
std::wcout << "DEFAULT_GUI_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
g_hfFont = GetStockObject(OEM_FIXED_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "OEM_FIXED_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
g_hfFont = GetStockObject(ANSI_FIXED_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "ANSI_FIXED_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
g_hfFont = GetStockObject(ANSI_VAR_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "ANSI_VAR_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
g_hfFont = GetStockObject(SYSTEM_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "SYSTEM_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
g_hfFont = GetStockObject(DEVICE_DEFAULT_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "DEVICE_DEFAULT_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
g_hfFont = GetStockObject(SYSTEM_FIXED_FONT);
GetObject(g_hfFont, sizeof(LOGFONT), &lf);
std::wcout << "SYSTEM_FIXED_FONT is " << (std::wstring) lf.lfFaceName << std::endl;
}
//#include <wx/fontdlg.h>
Emboss::FontList Emboss::get_font_list()
{
//auto a = get_font_path(L"none");
//get_OS_font();
get_OS_font();
//choose_font_dlg();
//FontList list1 = get_font_list_by_enumeration();
//FontList list2 = get_font_list_by_register();
//FontList list3 = get_font_list_by_folder();
//FontList list3 = get_font_list_by_folder();
return get_font_list_by_register();
}
@ -337,9 +353,11 @@ Emboss::FontList Emboss::get_font_list_by_folder() {
std::wstring search_dir = std::wstring(winDir, winDir_size) + L"\\Fonts\\";
WIN32_FIND_DATA fd;
HANDLE hFind;
auto iterate_files = [&hFind, &fd, &search_dir, &result]() {
if (hFind == INVALID_HANDLE_VALUE) return;
// read all (real) files in current folder
// By https://en.wikipedia.org/wiki/TrueType has also suffix .tte
std::vector<std::wstring> suffixes = {L"*.ttf", L"*.ttc", L"*.tte"};
for (const std::wstring &suffix : suffixes) {
hFind = ::FindFirstFile((search_dir + suffix).c_str(), &fd);
if (hFind == INVALID_HANDLE_VALUE) continue;
do {
// skip folder . and ..
if (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) continue;
@ -347,13 +365,8 @@ Emboss::FontList Emboss::get_font_list_by_folder() {
// TODO: find font name instead of filename
result.emplace_back(file_name, search_dir + file_name);
} while (::FindNextFile(hFind, &fd));
::FindClose(hFind);
};
hFind = ::FindFirstFile((search_dir + L"*.ttf").c_str(), &fd);
iterate_files();
hFind = ::FindFirstFile((search_dir + L"*.ttc").c_str(), &fd);
iterate_files();
::FindClose(hFind);
}
return result;
}
@ -366,6 +379,34 @@ std::optional<std::wstring> Emboss::get_font_path(const std::wstring &font_face_
}
#endif
std::optional<Emboss::Font> Emboss::load_font(std::vector<unsigned char> data)
{
Font res;
res.buffer = std::move(data);
unsigned int index = 0;
int font_offset = 0;
while (font_offset >= 0) {
font_offset = stbtt_GetFontOffsetForIndex(res.buffer.data(), index++);
}
// at least one font must be inside collection
if (index < 1) {
std::cerr << "There is no font collection inside file.";
return {};
}
// select default font on index 0
res.index = 0;
res.count = index;
auto font_info = Privat::load_font_info(res);
if (!font_info.has_value()) return {};
// load information about line gap
stbtt_GetFontVMetrics(&(*font_info), &res.ascent, &res.descent,
&res.linegap);
return res;
}
std::optional<Emboss::Font> Emboss::load_font(const char *file_path)
{
FILE *file = fopen(file_path, "rb");
@ -386,52 +427,63 @@ std::optional<Emboss::Font> Emboss::load_font(const char *file_path)
}
rewind(file);
Font res;
res.buffer = std::vector<unsigned char>(size);
size_t count_loaded_bytes = fread((void *) &res.buffer.front(), 1, size, file);
unsigned int index = 0;
int font_offset = 0;
while (font_offset >= 0) {
font_offset = stbtt_GetFontOffsetForIndex(res.buffer.data(), index++);
std::vector<unsigned char> buffer(size);
size_t count_loaded_bytes = fread((void *) &buffer.front(), 1, size, file);
if (count_loaded_bytes != size) {
std::cerr << "Different loaded(from file) data size.";
return {};
}
// at least one font must be inside collection
if (index < 1) {
std::cerr << "There is no font collection inside file.";
return {};
}
// select default font on index 0
res.index = 0;
res.count = index;
auto font_info = Privat::load_font_info(res);
if (!font_info.has_value()) return {};
// load information about line gap
stbtt_GetFontVMetrics(&(*font_info), &res.ascent, &res.descent, &res.linegap);
return res;
return load_font(std::move(buffer));
}
Polygons Emboss::letter2polygons(const Font &font, char letter, float flatness)
#ifdef _WIN32
std::optional<Emboss::Font> Emboss::load_font(HFONT hfont)
{
HDC hdc = ::CreateCompatibleDC(NULL);
if (hdc == NULL) {
std::cerr << "Can't create HDC by CreateCompatibleDC(NULL).";
return {};
}
::SelectObject(hdc, hfont);
size_t size = ::GetFontData(hdc, 0, 0, NULL, 0);
if (size == 0) {
std::cerr << "HFONT doesn't have size.";
::DeleteDC(hdc);
return {};
}
std::vector<unsigned char> buffer(size);
size_t loaded_size = ::GetFontData(hdc, 0, 0, buffer.data(), size);
::DeleteDC(hdc);
if (size != loaded_size) {
std::cerr << "Different loaded(from HFONT) data size.";
return {};
}
return load_font(std::move(buffer));
}
#endif // _WIN32
std::optional<Emboss::Glyph> Emboss::letter2glyph(const Font &font,
int letter,
float flatness)
{
auto font_info_opt = Privat::load_font_info(font);
if (!font_info_opt.has_value()) return Polygons();
if (!font_info_opt.has_value()) return {};
stbtt_fontinfo *font_info = &(*font_info_opt);
auto glyph_opt = Privat::get_glyph(*font_info_opt, (int) letter, flatness);
if (!glyph_opt.has_value()) return Polygons();
return union_(glyph_opt->polygons);
return Privat::get_glyph(*font_info_opt, (int) letter, flatness);
}
Polygons Emboss::text2polygons(const Font & font,
const char * text,
const FontProp &font_prop)
const FontProp &font_prop,
Glyphs & cache)
{
auto font_info_opt = Privat::load_font_info(font);
if (!font_info_opt.has_value()) return Polygons();
stbtt_fontinfo *font_info = &(*font_info_opt);
std::optional<stbtt_fontinfo> font_info_opt;
Point cursor(0, 0);
Polygons result;
@ -443,16 +495,27 @@ Polygons Emboss::text2polygons(const Font & font,
continue;
}
int unicode = static_cast<int>(wc);
auto glyph_opt = Privat::get_glyph(*font_info_opt, unicode, font_prop.flatness);
if (!glyph_opt.has_value()) continue;
std::optional<Glyph> glyph_opt;
auto glyph_item = cache.find(unicode);
if (glyph_item != cache.end()) glyph_opt = glyph_item->second;
else {
if (!font_info_opt.has_value()) {
font_info_opt = Privat::load_font_info(font);
// can load font info?
if (!font_info_opt.has_value()) return Polygons();
}
glyph_opt = Privat::get_glyph(*font_info_opt, unicode,
font_prop.flatness);
// has definition inside of font?
if (!glyph_opt.has_value()) continue;
cache[unicode] = *glyph_opt;
}
// move glyph to cursor position
Polygons polygons = glyph_opt->polygons; // copy
for (Polygon &polygon : polygons)
for (Point &p : polygon.points) p += cursor;
polygon.translate(cursor);
cursor.x() += glyph_opt->advance_width + font_prop.char_gap;
polygons_append(result, polygons);
}
return union_(result);