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polybar/include/x11/fontmanager.hpp
2016-11-03 12:54:32 +01:00

92 lines
1.9 KiB
C++

#pragma once
#include <X11/Xft/Xft.h>
#include <X11/Xlib-xcb.h>
#include <xcb/xcbext.h>
#include "common.hpp"
#include "components/logger.hpp"
#include "x11/color.hpp"
#include "x11/connection.hpp"
#include "x11/types.hpp"
#include "x11/xlib.hpp"
LEMONBUDDY_NS
#define XFT_MAXCHARS (1 << 16)
extern array<char, XFT_MAXCHARS> xft_widths;
extern array<wchar_t, XFT_MAXCHARS> xft_chars;
struct fonttype {
fonttype() {}
XftFont* xft;
xcb_font_t ptr;
int offset_y = 0;
int ascent = 0;
int descent = 0;
int height = 0;
int width = 0;
uint16_t char_max = 0;
uint16_t char_min = 0;
vector<xcb_charinfo_t> width_lut;
};
struct fonttype_deleter {
void operator()(fonttype* f) {
if (f->xft != nullptr)
XftFontClose(xlib::get_display(), f->xft);
else
xcb_close_font(xutils::get_connection(), f->ptr);
}
};
using font_t = unique_ptr<fonttype, fonttype_deleter>;
class fontmanager {
public:
explicit fontmanager(connection& conn, const logger& logger);
~fontmanager();
void set_preferred_font(int index);
bool load(string name, int fontindex = -1, int offset_y = 0);
font_t& match_char(uint16_t chr);
int char_width(font_t& font, uint16_t chr);
XftColor xftcolor();
void allocate_color(XRenderColor color, bool initial_alloc = false);
void set_gcontext_font(gcontext& gc, xcb_font_t font);
protected:
bool open_xcb_font(font_t& fontptr, string fontname);
bool has_glyph(font_t& font, uint16_t chr);
private:
connection& m_connection;
const logger& m_logger;
Display* m_display = nullptr;
Visual* m_visual = nullptr;
Colormap m_colormap;
map<int, font_t> m_fonts;
int m_fontindex = -1;
XftColor m_xftcolor;
};
namespace {
/**
* Configure injection module
*/
template <typename T = unique_ptr<fontmanager>>
di::injector<T> configure_fontmanager() {
return di::make_injector(configure_connection(), configure_logger());
}
}
LEMONBUDDY_NS_END