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

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
View File

@ -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;
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);
if(mode == pmStartAll) {
if(!file_exists(filename)) {
@ -166,6 +166,7 @@ string gen_latex(presmode mode, string s, int res) {
"\\documentclass[border=2pt]{standalone}\n"
"\\usepackage{amsmath}\n"
"\\usepackage{varwidth}\n"
"\\usepackage{color}\n"
"\\begin{document}\n"
"\\begin{varwidth}{\\linewidth}\n"
"%s"
@ -173,7 +174,11 @@ string gen_latex(presmode mode, string s, int res) {
"\\end{document}\n", s.c_str());
fclose(f);
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()));
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) {
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) {
string fn = gen_latex(pmStart, s, 600);
void dialog_add_latex(string s, color_t col, int size, flagtype flags) {
string fn = gen_latex(pmStart, s, 600, flags);
if(!textures.count(fn)) {
gen_latex(pmStartAll, s, 600);
gen_latex(pmStartAll, s, 600, flags);
auto& tex = textures[fn];
tex.original = true;
tex.twidth = 4096;
println(hlog, "rt = ", tex.readtexture(fn));
if(!(flags & LATEX_COLOR))
for(int y=0; y<tex.theight; y++)
for(int x=0; x<tex.twidth; x++) {
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;
void dialog_may_latex(string latex, string normal, color_t col, int size) {
if(rv_latex)
dialog_add_latex(latex, (col << 8) | 0xFF, size * 3/2);
void dialog_may_latex(string latex, string normal, color_t col, int size, flagtype flags) {
if(rv_latex) {
if(flags & LATEX_COLOR) col = 0xFFFFFFFF;
dialog_add_latex(latex, (col << 8) | 0xFF, size * 3/2, flags);
}
else {
dialog::addInfo(normal, col);
dialog::items.back().scale = size;

6
rogueviz/rogueviz.h
View File

@ -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 slide_error(presmode mode, string s);
static const flagtype LATEX_COLOR = 1;
void show_latex(presmode mode, string s);
void dialog_add_latex(string s, color_t color, int size = 100);
void dialog_may_latex(string latex, string normal, color_t col = dialog::dialogcolor, 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, flagtype flag = 0);
inline ld angle = 0;
inline int dir = -1;