Ken Van Hoeylandt c3bcf93698
Refactor app launching (#174)
- Refactor the way apps work: Instead of a C interface, they are now C++ classes. The main reasoning is that attaching data to an app was cumbersome. Having different implementations for different kinds of apps was cumbersome too. (3 or 4 layers of manifest nesting for the TactilityC project)
- External apps are still written in C, but they get a createData/destroyData in their manifest, so:
- External apps now have their own manifest.
- All functions in the original AppManifest are removed and replaced by a single `createApp` function
- External apps now automatically register (each app individually!) when they run the first time. As a side-effect they become visible in the `AppList` app!
- Adapted all apps for the new interface.
- Adapted all internal logic for these changes (Gui, ViewPort, Loader, AppContext, AppInstance, etc.)
- Rewrote parts of Loader to use std::shared_ptr to make the code much safer.
- Added a refcount check for the `AppInstance` and `App` at the end of their lifecycle. Show warning if refcount is too high.
2025-01-21 17:48:32 +01:00

75 lines
2.4 KiB
C++

#pragma once
#include <algorithm>
#include <cstdio>
#include <string>
#include <vector>
namespace tt::string {
/**
* Find the last occurrence of a character.
* @param[in] text the text to search in
* @param[in] from_index the index to search from (searching from right to left)
* @param[in] find the character to search for
* @return the index of the found character, or -1 if none found
*/
int findLastIndex(const char* text, size_t from_index, char find);
/**
* Given a filesystem path as input, try and get the parent path.
* @param[in] path input path
* @param[out] output an output buffer that is allocated to at least the size of "current"
* @return true when successful
*/
bool getPathParent(const std::string& path, std::string& output);
/**
* Given a filesystem path as input, get the last segment of a path
* @param[in] path input path
*/
std::string getLastPathSegment(const std::string& path);
/**
* Splits the provided input into separate pieces with delimiter as separator text.
* When the input string is empty, the output list will be empty too.
*
* @param input the input to split up
* @param delimiter a non-empty string to recognize as separator
*/
std::vector<std::string> split(const std::string& input, const std::string& delimiter);
/**
* Join a set of tokens into a single string, given a delimiter (separator).
* If the input is an empty list, the result will be an empty string.
* The delimeter is only placed inbetween tokens and not appended at the end of the resulting string.
*
* @param input the tokens to join together
* @param delimiter the separator to join with
*/
std::string join(const std::vector<std::string>& input, const std::string& delimiter);
/**
* Returns the lowercase value of a string.
* @param[in] the string with lower and/or uppercase characters
* @return a string with only lowercase characters
*/
template <typename T>
std::basic_string<T> lowercase(const std::basic_string<T>& input) {
std::basic_string<T> output = input;
std::transform(
output.begin(),
output.end(),
output.begin(),
[](const T character) { return static_cast<T>(std::tolower(character)); }
);
return std::move(output);
}
/**
* @return the first part of a file name right up (and excluding) the first period character.
*/
std::string removeFileExtension(const std::string& input);
} // namespace