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Document some of the utils functions

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Originally committed to SVN as r6614.
This commit is contained in:
Thomas Goyne 2012-03-27 00:49:33 +00:00
parent e6f55bdbcb
commit 30f0a56832
2 changed files with 41 additions and 74 deletions
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71
aegisub/src/utils.cpp
View file

@ -43,7 +43,6 @@
#include <wx/dcmemory.h>
#include <wx/filename.h>
#include <wx/log.h>
#include <wx/stdpaths.h>
#include <wx/window.h>
#endif
@ -56,30 +55,16 @@
#include "utils.h"
/// @brief Make a path relative to reference
/// @param _path
/// @param reference
/// @return
///
wxString MakeRelativePath(wxString _path,wxString reference) {
if (_path.IsEmpty()) return "";
if (_path.Left(1) == "?") return _path;
wxString MakeRelativePath(wxString _path, wxString reference) {
if (_path.empty() || _path[0] == '?') return _path;
wxFileName path(_path);
wxFileName refPath(reference);
path.MakeRelativeTo(refPath.GetPath());
return path.GetFullPath();
}
/// @brief Extract original path from relative
/// @param _path
/// @param reference
/// @return
///
wxString DecodeRelativePath(wxString _path,wxString reference) {
if (_path.IsEmpty()) return "";
if (_path.Left(1) == "?") return _path;
if (_path.empty() || _path[0] == '?') return _path;
wxFileName path(_path);
wxFileName refPath(reference);
if (!path.IsAbsolute()) path.MakeAbsolute(refPath.GetPath());
@ -91,26 +76,15 @@ wxString DecodeRelativePath(wxString _path,wxString reference) {
#endif
}
/// @brief Float to string
/// @param value
/// @return
///
wxString AegiFloatToString(double value) {
return wxString::Format("%g",value);
}
/// @brief Int to string
/// @param value
/// @return
///
wxString AegiIntegerToString(int value) {
return wxString::Format("%i",value);
}
/// @brief There shall be no kiB, MiB stuff here Pretty reading of size
/// @param bytes
/// @return
///
wxString PrettySize(int bytes) {
// Suffixes
wxArrayString suffix;
@ -141,12 +115,6 @@ wxString PrettySize(int bytes) {
return final + suffix[i];
}
/// @brief Code from http://bob.allegronetwork.com/prog/tricks.html Get the smallest power of two that is greater or equal to x
/// @param x
/// @return
///
int SmallestPowerOf2(int x) {
x--;
x |= (x >> 1);
@ -158,7 +126,7 @@ int SmallestPowerOf2(int x) {
return x;
}
void GetWordBoundaries(const wxString text, IntPairVector &results, int start, int end) {
void GetWordBoundaries(wxString const& text, IntPairVector &results, int start, int end) {
int depth = 0;
bool in_draw_mode = false;
if (end < 0) end = text.size();
@ -227,7 +195,6 @@ void GetWordBoundaries(const wxString text, IntPairVector &results, int start, i
}
}
/// @brief Determine whether wchar 'c' is a whitespace character
bool IsWhitespace(wchar_t c)
{
const wchar_t whitespaces[] = {
@ -241,7 +208,6 @@ bool IsWhitespace(wchar_t c)
return std::binary_search(whitespaces, whitespaces + num_chars, c);
}
/// @brief Returns true if str is empty of consists of only whitespace
bool StringEmptyOrWhitespace(const wxString &str)
{
for (size_t i = 0; i < str.size(); ++i)
@ -251,14 +217,6 @@ bool StringEmptyOrWhitespace(const wxString &str)
return true;
}
/// @brief wxString::ToLong() is slow and not as flexible String to integer
/// @param str
/// @param start
/// @param end
/// @return
///
int AegiStringToInt(const wxString &str,int start,int end) {
// Initialize to zero and get length if end set to -1
int sign = 1;
@ -279,16 +237,6 @@ int AegiStringToInt(const wxString &str,int start,int end) {
return value*sign;
}
/// @brief String to fixed point
/// @param str
/// @param decimalPlaces
/// @param start
/// @param end
/// @return
///
int AegiStringToFix(const wxString &str,size_t decimalPlaces,int start,int end) {
// Parts of the number
int sign = 1;
@ -333,13 +281,7 @@ int AegiStringToFix(const wxString &str,size_t decimalPlaces,int start,int end)
return (major + minor)*sign;
}
/// @brief This is needed because wxIcon has to be 16x16 to work properly on win32 Convert a wxBitmap to wxIcon
/// @param iconBmp
/// @return
///
wxIcon BitmapToIcon(wxBitmap iconBmp) {
wxIcon BitmapToIcon(wxBitmap const& iconBmp) {
// Create the icon and background bmp
wxIcon ico;
wxBitmap bmp(16,16);
@ -360,9 +302,6 @@ wxIcon BitmapToIcon(wxBitmap iconBmp) {
return ico;
}
/// @brief just before this is called. It is assumed that something has prepared closing the current instance Start Aegisub again
///
void RestartAegisub() {
#if defined(__WXMSW__)
wxStandardPaths stand;

44
aegisub/src/utils.h
View file

@ -45,28 +45,58 @@
#include <vector>
#include <wx/icon.h>
#include <wx/menuitem.h>
#include <wx/thread.h>
#endif
class wxMouseEvent;
class wxWindow;
/// DOCME
typedef std::vector<std::pair<int,int> > IntPairVector;
/// @brief Make a path relative to reference
wxString MakeRelativePath(wxString path,wxString reference);
/// @brief Extract original path from relative
wxString DecodeRelativePath(wxString path,wxString reference);
wxString AegiFloatToString(double value);
wxString AegiIntegerToString(int value);
wxString PrettySize(int bytes);
/// @brief Get the smallest power of two that is greater or equal to x
///
/// Algorithm from http://bob.allegronetwork.com/prog/tricks.html
int SmallestPowerOf2(int x);
void GetWordBoundaries(const wxString text,IntPairVector &results,int start=0,int end=-1);
/// Get the indices in text which are the beginnings of words
/// @param text Text to split into words
/// @param[out] results Vector of indices which are the beginnings of words
/// @param start First index in text to check
/// @param end Last index in text to check, or -1 for end
///
/// This is ASS-specific and not a general purpose word boundary finder; words
/// within override blocks or drawing blocks are ignored
void GetWordBoundaries(wxString const& text, IntPairVector &results, int start=0, int end=-1);
/// Check if wchar 'c' is a whitespace character
bool IsWhitespace(wchar_t c);
/// Check if every character in str is whitespace
bool StringEmptyOrWhitespace(const wxString &str);
/// @brief String to integer
///
/// wxString::ToLong() is slow and not as flexible
int AegiStringToInt(const wxString &str,int start=0,int end=-1);
int AegiStringToFix(const wxString &str,size_t decimalPlaces,int start=0,int end=-1);
wxIcon BitmapToIcon(wxBitmap bmp);
/// @brief Convert a wxBitmap to wxIcon
///
/// This is needed because wxIcon has to be 16x16 to work properly on win32
wxIcon BitmapToIcon(wxBitmap const& bmp);
/// @brief Launch a new copy of Aegisub.
///
/// Contrary to what the name suggests, this does not close the currently
/// running process.
void RestartAegisub();
/// Forward a mouse wheel event to the window under the mouse if needed
@ -79,16 +109,14 @@ bool ForwardMouseWheelEvent(wxWindow *source, wxMouseEvent &evt);
/// @brief Templated abs() function
template <typename T> T tabs(T x) { return x < 0 ? -x : x; }
/// Get the middle value of a, b, and c (i.e. clamp b to [a,c])
/// @precondition a <= c
template<typename T> inline T mid(T a, T b, T c) { return std::max(a, std::min(b, c)); }
#ifndef FORCEINLINE
#ifdef __VISUALC__
/// DOCME
#define FORCEINLINE __forceinline
#else
/// DOCME
#define FORCEINLINE inline
// __attribute__((always_inline)) gives me errors on g++ ~amz
#endif