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Dependencies: SDFileSystem_Warning_Fixed
FileSelectorWav.cpp
- Committer:
- MikamiUitOpen
- Date:
- 2017-03-16
- Revision:
- 12:f73e11831c1c
- Parent:
- 11:c33c711a5712
- Child:
- 17:abfd6af9a236
File content as of revision 12:f73e11831c1c:
//--------------------------------------------------------------
// FileSelector class
// SD カード内のファイル名の一覧を表示し,ファイルを選択する
//
// 2017/03/17, Copyright (c) 2017 MIKAMI, Naoki
//--------------------------------------------------------------
#include "FileSelectorWav.hpp"
namespace Mikami
{
FileSelector::FileSelector(uint8_t x0, uint8_t y0, int maxFiles,
int maxNameLength, SD_WavReader &reader)
: X_(x0), Y_(y0),
MAX_FILES_(maxFiles), MAX_NAME_LENGTH_(maxNameLength),
fileNames_(maxFiles), fileNameLabels_(MAX_LIST_PAGE_),
next_(50, 238, 64, 36, 2, (string[]){"<", ">"}, 10, 0, 2, -1, Font24),
pageLabel_(210, 250, Label::LEFT, Font16),
lcd_(GuiBase::GetLcd()), sdReader_(reader), page_(1)
{
Array<string> nonString(MAX_LIST_PAGE_, "");
rect_ = new ButtonGroup(X_, Y_, W_H_, W_H_, MAX_LIST_PAGE_,
nonString, 0, V_L_-W_H_, 1,
-1, Font12, 0, GuiBase::ENUM_BACK,
BASE_COLOR_, TOUCHED_COLOR_);
rect_->EraseAll();
next_.EraseAll();
// Label を生成
for (int n=0; n<MAX_LIST_PAGE_; n++)
fileNameLabels_[n] = new Label(X_+30, Y_+5+V_L_*n, "",
Label::LEFT, Font16, BASE_COLOR_);
}
FileSelector::~FileSelector()
{
delete rect_;
for (int n=0; n<MAX_LIST_PAGE_; n++) delete fileNameLabels_[n];
}
bool FileSelector::CreateTable()
{
DIR* dp = opendir("/sd");
fileCount_ = 0;
if (dp != NULL)
{
dirent* entry;
for (int n=0; n<256; n++)
{
entry = readdir(dp);
if (entry == NULL) break;
string strName = entry->d_name;
if ( (strName.find(".wav") != string::npos) ||
(strName.find(".WAV") != string::npos) )
{
sdReader_.Open(strName); // ファイルオープン
// PCM,16 ビットステレオ,標本化周波数 44.1 kHz 以外のファイルは除外
if (sdReader_.IsWavFile())
fileNames_[fileCount_++] = strName;
sdReader_.Close();
}
if (fileCount_ >= MAX_FILES_) break;
}
closedir(dp);
}
else
return false;
if (fileCount_ == 0) return false;
div_t m = div(fileCount_, MAX_LIST_PAGE_);
maxPage_ = (m.rem == 0) ? m.quot : m.quot+1;
rect_->EraseAll();
return true;
}
// ファイルを選択する
bool FileSelector::Select(string &fileName)
{
int m;
if (next_.GetTouchedNumber(m))
{
if (m==0) page_--;
else page_++;
DisplayFileList(false);
wait_ms(200);
}
int n;
if (rect_->GetTouchedNumber(n))
{
int k = (page_ - 1)*MAX_LIST_PAGE_ + n;
fileNameLabels_[n]->Draw(GetFileNameNoExt(k), TOUCHED_COLOR_);
fileName = fileNames_[k];
return true;
}
else
return false;
}
// ファイルの一覧の表示
void FileSelector::DisplayFileList(bool sortEnable)
{
if (sortEnable)
std::sort((string *)fileNames_,
(string *)fileNames_+fileCount_);
Erase(X_, Y_, MAX_NAME_LENGTH_*((sFONT *)(&Font16))->Width, 272-Y_);
div_t m = div(fileCount_, MAX_LIST_PAGE_);
int count = (m.quot >= page_) ? MAX_LIST_PAGE_ : m.rem;
for (int n=0; n<count; n++) rect_->Draw(n);
for (int n=0; n<count; n++)
fileNameLabels_[n]->Draw(GetFileNameNoExt(n+(page_-1)*MAX_LIST_PAGE_));
// 前のページ,次のページの選択ボタンなどを表示する
next_.ActivateAll();
next_.DrawAll();
if (page_ == 1) next_.Inactivate(0);
if (page_ == maxPage_) next_.Inactivate(1);
char page[6];
sprintf(page, "%d/%d", page_, maxPage_);
pageLabel_.Draw(page);
}
// ファイルの一覧の消去
void FileSelector::Erase(uint16_t x, uint16_t y, uint16_t width, uint16_t height,
uint32_t color)
{
lcd_.SetTextColor(color);
lcd_.FillRect(x, y, width, height);
}
// 拡張子を削除したファイル名を取得
string FileSelector::GetFileNameNoExt(int n)
{
string name = fileNames_[n];
int k = name.rfind(".");
if (k != string::npos)
return name.erase(k);
else
return name;
}
}