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Aegisub/aegisub/src/utils.cpp

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// Copyright (c) 2005-2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
///////////
// Headers
#include "config.h"
#include <wx/wxprec.h>
#include <wx/filename.h>
#include <wx/menu.h>
#include <wx/dcmemory.h>
#include <wx/stdpaths.h>
#include "utils.h"
#ifdef __UNIX__
#include <unistd.h>
#endif
#ifdef __APPLE__
extern "C" {
#include "libosxutil/libosxutil.h"
}
#endif
#ifndef __LINUX__
//////////////////////////
// Absolute of 64 bit int
int64_t abs64(int64_t input) {
if (input < 0) return -input;
return input;
}
#endif
///////////////////////////////////////
// Count number of matches of a substr
int CountMatches(wxString parent,wxString child) {
size_t pos = wxString::npos;
int n = 0;
while ((pos = parent.find(child,pos+1)) != wxString::npos) n++;
return n;
}
/////////////////////////////////////
// Make a path relative to reference
wxString MakeRelativePath(wxString _path,wxString reference) {
if (_path.IsEmpty()) return _T("");
if (_path.Left(1) == _T("?")) return _path;
wxFileName path(_path);
wxFileName refPath(reference);
path.MakeRelativeTo(refPath.GetPath());
return path.GetFullPath();
}
///////////////////////////////////////
// Extract original path from relative
wxString DecodeRelativePath(wxString _path,wxString reference) {
if (_path.IsEmpty()) return _T("");
if (_path.Left(1) == _T("?")) return _path;
wxFileName path(_path);
wxFileName refPath(reference);
if (!path.IsAbsolute()) path.MakeAbsolute(refPath.GetPath());
#ifdef __UNIX__
return path.GetFullPath(wxPATH_UNIX); // also works on windows
// No, it doesn't, this ommits drive letter in Windows. ~ amz
#else
return path.GetFullPath();
#endif
}
////////////////
// Pretty float
wxString PrettyFloat(wxString src) {
if (src.Contains(_T("."))) {
size_t len = src.Length();
while (src.Right(1) == _T("0")) {
len--;
src.Truncate(len);
}
if (src.Right(1) == _T(".")) {
len--;
src.Truncate(len);
}
}
return src;
}
wxString PrettyFloatF(float src) { return PrettyFloat(wxString::Format(_T("%f"),src)); }
wxString PrettyFloatD(double src) { return PrettyFloat(wxString::Format(_T("%f"),src)); }
///////////////////
// Float to string
wxString AegiFloatToString(double value) {
return PrettyFloat(wxString::Format(_T("%f"),value));
}
/////////////////
// Int to string
wxString AegiIntegerToString(int value) {
return wxString::Format(_T("%i"),value);
}
//////////////////////////
// Pretty reading of size
// There shall be no kiB, MiB stuff here
wxString PrettySize(int bytes) {
// Suffixes
wxArrayString suffix;
suffix.Add(_T(""));
suffix.Add(_T(" kB"));
suffix.Add(_T(" MB"));
suffix.Add(_T(" GB"));
suffix.Add(_T(" TB"));
suffix.Add(_T(" PB"));
// Set size
int i = 0;
double size = bytes;
while (size > 1024) {
size = size / 1024.0;
i++;
if (i == 6) {
i--;
break;
}
}
// Set number of decimal places
wxString final;
if (size < 10) final = wxString::Format(_T("%.2f"),size);
else if (size < 100) final = wxString::Format(_T("%.1f"),size);
else final = wxString::Format(_T("%.0f"),size);
return final + suffix[i];
}
//////////////////////////////////
// Append a menu item with bitmap
wxMenuItem* AppendBitmapMenuItem (wxMenu* parentMenu,int id,wxString text,wxString help,wxBitmap bmp,int pos) {
wxMenuItem *cur = new wxMenuItem(parentMenu,id,text,help);
// Mac software does not use icons in menus so we shouldn't either
#ifndef __APPLE__
cur->SetBitmap(bmp);
#endif
if (pos == -1) parentMenu->Append(cur);
else parentMenu->Insert(pos,cur);
return cur;
}
///////////////////////////////////////////////////////////////
// Get the smallest power of two that is greater or equal to x
// Code from http://bob.allegronetwork.com/prog/tricks.html
int SmallestPowerOf2(int x) {
x--;
x |= (x >> 1);
x |= (x >> 2);
x |= (x >> 4);
x |= (x >> 8);
x |= (x >> 16);
x++;
return x;
}
///////////////////////
// Get word boundaries
void GetWordBoundaries(const wxString text,IntPairVector &results,int start,int end) {
// Variables
wxChar cur;
int curPos;
int lastpos = -1;
int depth = 0;
if (end < 0) end = text.Length();
bool isDelim;
// Delimiters
const wchar_t delim_chars[] = {
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0028,
0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f, 0x003a,
0x003b, 0x003d, 0x003f, 0x0040, 0x005b, 0x005c, 0x005d, 0x005e,
0x005f, 0x0060, 0x007b, 0x007c, 0x007d, 0x007e, 0x00a1, 0x00a2,
0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, 0x00a8, 0x00aa, 0x00ab,
0x00b0, 0x00b6, 0x00b7, 0x00ba, 0x00bb, 0x00bf, 0x02dc, 0x0e3f,
0x2010, 0x2013, 0x2014, 0x2015, 0x2018, 0x2019, 0x201c, 0x201d,
0x2020, 0x2021, 0x2022, 0x2025, 0x2026, 0x2026, 0x2030, 0x2031,
0x2032, 0x203b, 0x203b, 0x203d, 0x2042, 0x2044, 0x20a6, 0x20a9,
0x20aa, 0x20ac, 0x20ad, 0x2116, 0x2234, 0x2235, 0x2420, 0x2422,
0x2423, 0x2506, 0x25ca, 0x2605, 0x261e, 0x2e2e, 0x3000, 0x3001,
0x3002, 0x3008, 0x3009, 0x300a, 0x300b, 0x300c, 0x300d, 0x300e,
0x300f, 0x3010, 0x3011, 0x3014, 0x3015, 0x3016, 0x3017, 0x3018,
0x3019, 0x301a, 0x301b, 0x301c, 0x3030, 0x303d, 0x30fb, 0xff0a,
0xff5b, 0xff5d, 0xff5e, 0
};
wxString delim(delim_chars);
// Scan
for (int i=start;i<end+1;i++) {
// Current character
curPos = i;
if (i < end) cur = text[i];
else cur = '.';
isDelim = false;
// Increase depth
if (cur == '{') {
depth++;
if (depth == 1) {
if (lastpos+1 != curPos) {
results.push_back(std::pair<int,int>(lastpos+1,curPos));
}
continue;
}
}
// Decrease depth
if (cur == '}') {
depth--;
if (depth == 0) {
lastpos = i;
continue;
}
}
// Wrong depth
if (depth != 0) continue;
// Check if it is \n or \N
if (cur == '\\' && i < end-1 && (text[i+1] == 'N' || text[i+1] == 'n' || text[i+1] == 'h')) {
isDelim = true;
i++;
}
// Check for standard delimiters
if (delim.Find(cur) != wxNOT_FOUND) {
isDelim = true;
}
// Is delimiter?
if (isDelim) {
if (lastpos+1 != curPos) {
results.push_back(std::pair<int,int>(lastpos+1,curPos));
}
lastpos = i;
}
}
}
/////////////////////////////////////////////////////////
// Determine whether wchar 'c' is a whitespace character
bool IsWhitespace(wchar_t c)
{
const wchar_t whitespaces[] = {
// http://en.wikipedia.org/wiki/Space_(punctuation)#Table_of_spaces
0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x0020, 0x0085, 0x00A0,
0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005,
0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x2028, 0x2029, 0x202F,
0x025F, 0x3000, 0xFEFF
};
const size_t num_chars = sizeof(whitespaces) / sizeof(whitespaces[0]);
for (size_t i = 0; i < num_chars; ++i)
if (whitespaces[i] == c)
return true;
return false;
}
///////////////////////////////////////////////////////////////
// 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)
if (!IsWhitespace(str[i]))
return false;
return true;
}
/////////////////////
// String to integer
// wxString::ToLong() is slow and not as flexible
int AegiStringToInt(const wxString &str,int start,int end) {
// Initialize to zero and get length if end set to -1
int sign = 1;
int value = 0;
if (end == -1) end = str.Length();
for (int pos=start;pos<end;pos++) {
// Get value and check if it's a number
int val = (int)(str[pos]);
if (val == _T(' ') || val == _T('\t')) continue;
if (val == _T('-')) sign = -1;
if (val < _T('0') || val > _T('9')) break;
// Shift value to next decimal place and increment the value just read
value = value * 10 + (val - _T('0'));
}
return value*sign;
}
/////////////////////////
// String to fixed point
int AegiStringToFix(const wxString &str,size_t decimalPlaces,int start,int end) {
// Parts of the number
int sign = 1;
int major = 0;
int minor = 0;
if (end == -1) end = str.Length();
bool inMinor = false;
int *dst = &major;
size_t mCount = 0;
for (int pos=start;pos<end;pos++) {
// Get value and check if it's a number
int val = (int)(str[pos]);
if (val == _T(' ') || val == _T('\t')) continue;
if (val == _T('-')) sign = -1;
// Switch to minor
if (val == _T('.') || val == _T(',')) {
if (inMinor) break;
inMinor = true;
dst = &minor;
mCount = 0;
continue;
}
if (val < _T('0') || val > _T('9')) break;
*dst = (*dst * 10) + (val - _T('0'));
mCount++;
}
// Change minor to have the right number of decimal places
while (mCount > decimalPlaces) {
minor /= 10;
mCount--;
}
while (mCount < decimalPlaces) {
minor *= 10;
mCount++;
}
// Shift major and return
for (size_t i=0;i<decimalPlaces;i++) major *= 10;
return (major + minor)*sign;
}
////////////////////////////////
// Convert a wxBitmap to wxIcon
// This is needed because wxIcon has to be 16x16 to work properly on win32
wxIcon BitmapToIcon(wxBitmap iconBmp) {
// Create the icon and background bmp
wxIcon ico;
wxBitmap bmp(16,16);
// Blit bitmap into 16x16 one (don't remove brackets)
{
wxMemoryDC dc;
dc.SelectObject(bmp);
dc.SetBackground(wxColour(192,192,192));
dc.Clear();
dc.DrawBitmap(iconBmp,0,0,false);
}
// Create mask and convert to icon
wxMask *mask = new wxMask(bmp,wxColour(192,192,192));
bmp.SetMask(mask);
ico.CopyFromBitmap(bmp);
return ico;
}
///////////////////////
// Start Aegisub again
// It is assumed that something has prepared closing the current instance
// just before this is called.
void RestartAegisub() {
#if defined(__WXMSW__)
wxStandardPaths stand;
wxExecute(_T("\"") + stand.GetExecutablePath() + _T("\""));
#elif defined(__WXMAC__)
char *bundle_path = OSX_GetBundlePath();
char *support_path = OSX_GetBundleSupportFilesDirectory();
if (!bundle_path || !support_path) return; // oops
wxExecute(wxString::Format(_T("%s/MacOS/restart-helper /usr/bin/open \"%s\""), wxString(support_path, wxConvUTF8).c_str(), wxString(bundle_path, wxConvUTF8).c_str()));
free(bundle_path);
free(support_path);
#else
wxStandardPaths stand;
wxExecute(stand.GetExecutablePath());
#endif
}
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