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#include "util.hpp"
Semaphore::Semaphore(int count)
: m_count(count) {}
void Semaphore::notify() {
std::unique_lock<std::mutex> lock(m_mutex);
m_count++;
lock.unlock();
m_cv.notify_one();
}
void Semaphore::wait() {
std::unique_lock<std::mutex> lock(m_mutex);
while (m_count == 0)
m_cv.wait(lock);
m_count--;
}
void LaunchBrowser(Glib::ustring url) {
GError *err = nullptr;
if (!gtk_show_uri_on_window(nullptr, url.c_str(), GDK_CURRENT_TIME, &err))
printf("failed to open uri: %s\n", err->message);
}
void GetImageDimensions(int inw, int inh, int &outw, int &outh, int clampw, int clamph) {
const auto frac = static_cast<float>(inw) / inh;
outw = inw;
outh = inh;
if (outw > clampw) {
outw = clampw;
outh = clampw / frac;
}
if (outh > clamph) {
outh = clamph;
outw = clamph * frac;
}
}
std::vector<uint8_t> ReadWholeFile(std::string path) {
std::vector<uint8_t> ret;
FILE *fp = std::fopen(path.c_str(), "rb");
if (fp == nullptr)
return ret;
std::fseek(fp, 0, SEEK_END);
int len = std::ftell(fp);
std::rewind(fp);
ret.resize(len);
std::fread(ret.data(), 1, ret.size(), fp);
std::fclose(fp);
return ret;
}
std::string HumanReadableBytes(uint64_t bytes) {
constexpr static const char *x[] = { "B", "KB", "MB", "GB", "TB" };
int order = 0;
while (bytes >= 1000 && order < 4) { // 4=len(x)-1
order++;
bytes /= 1000;
}
return std::to_string(bytes) + x[order];
}
std::string IntToCSSColor(int color) {
int r = (color & 0xFF0000) >> 16;
int g = (color & 0x00FF00) >> 8;
int b = (color & 0x0000FF) >> 0;
std::stringstream ss;
ss << std::hex << std::setw(2) << std::setfill('0') << r
<< std::hex << std::setw(2) << std::setfill('0') << g
<< std::hex << std::setw(2) << std::setfill('0') << b;
return ss.str();
}
void AddWidgetMenuHandler(Gtk::Widget *widget, Gtk::Menu &menu) {
widget->signal_button_press_event().connect([&menu](GdkEventButton *ev) -> bool {
if (ev->type == GDK_BUTTON_PRESS && ev->button == GDK_BUTTON_SECONDARY) {
menu.popup_at_pointer(reinterpret_cast<const GdkEvent *>(ev));
return true;
}
return false;
// clang-format off
}, false);
// clang-format on
}
std::vector<std::string> StringSplit(const std::string &str, const char *delim) {
std::vector<std::string> parts;
char *token = std::strtok(const_cast<char *>(str.c_str()), delim);
while (token != nullptr) {
parts.push_back(token);
token = std::strtok(nullptr, delim);
}
return parts;
}
std::string GetExtension(std::string url) {
url = StringSplit(url, "?")[0];
url = StringSplit(url, "/").back();
return url.find(".") != std::string::npos ? url.substr(url.find_last_of(".")) : "";
}
bool IsURLViewableImage(const std::string &url) {
const auto ext = GetExtension(url);
static const char *exts[] = { ".jpeg",
".jpg",
".png", nullptr };
const char *str = ext.c_str();
for (int i = 0; exts[i] != nullptr; i++)
if (strcmp(str, exts[i]) == 0)
return true;
return false;
}
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