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Code Issues Releases Wiki Activity

rogueviz:: dialog_add_latex now can have LATEX_COLOR flag to display text colored in Latex

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This commit is contained in:
Zeno Rogue 2022-07-21 03:28:54 +02:00
parent 238828e300
commit b07b805b33
2 changed files with 22 additions and 12 deletions
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28
rogueviz/presentation.cpp
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@ -154,9 +154,9 @@ void show_picture(presmode mode, string s) {
}); });
} }
string gen_latex(presmode mode, string s, int res) { string gen_latex(presmode mode, string s, int res, flagtype flags) {
unsigned hash = 0; unsigned hash = 0;
for(char c: s) hash = (hash << 3) ^ hash ^ c; for(char c: s) hash = (hash << 3) ^ hash ^ c ^ flags;
string filename = format("latex-cache/%08X.png", hash); string filename = format("latex-cache/%08X.png", hash);
if(mode == pmStartAll) { if(mode == pmStartAll) {
if(!file_exists(filename)) { if(!file_exists(filename)) {
@ -166,6 +166,7 @@ string gen_latex(presmode mode, string s, int res) {
"\\documentclass[border=2pt]{standalone}\n" "\\documentclass[border=2pt]{standalone}\n"
"\\usepackage{amsmath}\n" "\\usepackage{amsmath}\n"
"\\usepackage{varwidth}\n" "\\usepackage{varwidth}\n"
"\\usepackage{color}\n"
"\\begin{document}\n" "\\begin{document}\n"
"\\begin{varwidth}{\\linewidth}\n" "\\begin{varwidth}{\\linewidth}\n"
"%s" "%s"
@ -173,7 +174,11 @@ string gen_latex(presmode mode, string s, int res) {
"\\end{document}\n", s.c_str()); "\\end{document}\n", s.c_str());
fclose(f); fclose(f);
hr::ignore(system("cd latex-cache; pdflatex rogueviz-latex.tex")); hr::ignore(system("cd latex-cache; pdflatex rogueviz-latex.tex"));
string pngline = "cd latex-cache; pdftopng -r " + its(res) + " rogueviz-latex.pdf t"; string pngline =
(flags & LATEX_COLOR) ?
"cd latex-cache; pdftopng -alpha -r " + its(res) + " rogueviz-latex.pdf t"
: "cd latex-cache; pdftopng -r " + its(res) + " rogueviz-latex.pdf t";
println(hlog, "calling: ", pngline);
hr::ignore(system(pngline.c_str())); hr::ignore(system(pngline.c_str()));
rename("latex-cache/t-000001.png", filename.c_str()); rename("latex-cache/t-000001.png", filename.c_str());
} }
@ -182,17 +187,18 @@ string gen_latex(presmode mode, string s, int res) {
} }
void show_latex(presmode mode, string s) { void show_latex(presmode mode, string s) {
show_picture(mode, gen_latex(mode, s, 2400)); show_picture(mode, gen_latex(mode, s, 2400, 0));
} }
void dialog_add_latex(string s, color_t col, int size) { void dialog_add_latex(string s, color_t col, int size, flagtype flags) {
string fn = gen_latex(pmStart, s, 600); string fn = gen_latex(pmStart, s, 600, flags);
if(!textures.count(fn)) { if(!textures.count(fn)) {
gen_latex(pmStartAll, s, 600); gen_latex(pmStartAll, s, 600, flags);
auto& tex = textures[fn]; auto& tex = textures[fn];
tex.original = true; tex.original = true;
tex.twidth = 4096; tex.twidth = 4096;
println(hlog, "rt = ", tex.readtexture(fn)); println(hlog, "rt = ", tex.readtexture(fn));
if(!(flags & LATEX_COLOR))
for(int y=0; y<tex.theight; y++) for(int y=0; y<tex.theight; y++)
for(int x=0; x<tex.twidth; x++) { for(int x=0; x<tex.twidth; x++) {
auto& pix = tex.get_texture_pixel(x, y); auto& pix = tex.get_texture_pixel(x, y);
@ -237,9 +243,11 @@ void dialog_add_latex(string s, color_t col, int size) {
bool rv_latex = false; bool rv_latex = false;
void dialog_may_latex(string latex, string normal, color_t col, int size) { void dialog_may_latex(string latex, string normal, color_t col, int size, flagtype flags) {
if(rv_latex) if(rv_latex) {
dialog_add_latex(latex, (col << 8) | 0xFF, size * 3/2); if(flags & LATEX_COLOR) col = 0xFFFFFFFF;
dialog_add_latex(latex, (col << 8) | 0xFF, size * 3/2, flags);
}
else { else {
dialog::addInfo(normal, col); dialog::addInfo(normal, col);
dialog::items.back().scale = size; dialog::items.back().scale = size;

6
rogueviz/rogueviz.h
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@ -231,9 +231,11 @@ function<void(presmode)> roguevizslide_action(char c, const T& t, const U& act)
void use_angledir(presmode mode, bool reset); void use_angledir(presmode mode, bool reset);
void slide_error(presmode mode, string s); void slide_error(presmode mode, string s);
static const flagtype LATEX_COLOR = 1;
void show_latex(presmode mode, string s); void show_latex(presmode mode, string s);
void dialog_add_latex(string s, color_t color, int size = 100); void dialog_add_latex(string s, color_t color, int size = 100, flagtype flag = 0);
void dialog_may_latex(string latex, string normal, color_t col = dialog::dialogcolor, int size = 100); void dialog_may_latex(string latex, string normal, color_t col = dialog::dialogcolor, int size = 100, flagtype flag = 0);
inline ld angle = 0; inline ld angle = 0;
inline int dir = -1; inline int dir = -1;