mirror of
git://projects.qi-hardware.com/gmenu2x.git
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This operation is not so slow that it really needs caching. Also reducing the delay before showing a directory will have more impact on the user experience than a slightly faster paint.
225 lines
6.4 KiB
C++
225 lines
6.4 KiB
C++
/***************************************************************************
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* Copyright (C) 2006 by Massimiliano Torromeo *
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* massimiliano.torromeo@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include "selector.h"
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#include "debug.h"
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#include "filelister.h"
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#include "gmenu2x.h"
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#include "linkapp.h"
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#include "menu.h"
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#include "surface.h"
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#include "utilities.h"
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#include <SDL.h>
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#include <algorithm>
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//for browsing the filesystem
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <fstream>
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using namespace std;
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Selector::Selector(GMenu2X *gmenu2x, LinkApp *link, const string &selectorDir) :
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Dialog(gmenu2x)
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{
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this->link = link;
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selRow = 0;
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if (selectorDir.empty())
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dir = link->getSelectorDir();
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else
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dir = selectorDir;
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if (dir[dir.length()-1]!='/') dir += "/";
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}
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int Selector::exec(int startSelection) {
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FileLister fl(dir, link->getSelectorBrowser());
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fl.setFilter(link->getSelectorFilter());
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fl.browse();
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OffscreenSurface bg(*gmenu2x->bg);
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drawTitleIcon(bg, link->getIconPath(), true);
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writeTitle(bg, link->getTitle());
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writeSubTitle(bg, link->getDescription());
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if (link->getSelectorBrowser()) {
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gmenu2x->drawButton(bg, "start", gmenu2x->tr["Exit"],
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gmenu2x->drawButton(bg, "accept", gmenu2x->tr["Select"],
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gmenu2x->drawButton(bg, "cancel", gmenu2x->tr["Up one folder"],
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gmenu2x->drawButton(bg, "left", "", 5)-10)));
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} else {
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gmenu2x->drawButton(bg, "start", gmenu2x->tr["Exit"],
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gmenu2x->drawButton(bg, "cancel", "",
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gmenu2x->drawButton(bg, "accept", gmenu2x->tr["Select"], 5)) - 10);
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}
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unsigned int top, height;
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tie(top, height) = gmenu2x->getContentArea();
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int fontheight = gmenu2x->font->getLineSpacing();
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if (link->getSelectorBrowser())
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fontheight = constrain(fontheight, 20, 40);
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unsigned int nb_elements = height / fontheight;
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bg.convertToDisplayFormat();
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unsigned int firstElement = 0;
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unsigned int selected = constrain(startSelection, 0, fl.size() - 1);
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prepare(fl);
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auto folderIcon = gmenu2x->sc.skinRes("imgs/folder.png");
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if (!folderIcon) {
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folderIcon = gmenu2x->sc.addSkinRes("imgs/folder.png");
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}
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bool close = false, result = true;
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while (!close) {
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OutputSurface& s = *gmenu2x->s;
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bg.blit(s, 0, 0);
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if (selected >= firstElement + nb_elements)
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firstElement = selected - nb_elements + 1;
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if (selected < firstElement)
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firstElement = selected;
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//Screenshot
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if (fl.isFile(selected)) {
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string path = screendir + trimExtension(fl[selected]) + ".png";
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auto screenshot = OffscreenSurface::loadImage(path, "", false);
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if (screenshot) {
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screenshot->blitRight(s, 320, 0, 320, 240, 128u);
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}
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}
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//Selection
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unsigned int iY = top + (selected - firstElement) * fontheight;
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if (selected<fl.size())
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s.box(1, iY, 309, fontheight, gmenu2x->skinConfColors[COLOR_SELECTION_BG]);
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//Files & Dirs
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s.setClipRect(0, top, 311, height);
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for (unsigned int i = firstElement; i < fl.size()
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&& i < firstElement + nb_elements; i++) {
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iY = i-firstElement;
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if (fl.isDirectory(i)) {
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folderIcon->blit(s, 4, top + (iY * fontheight));
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gmenu2x->font->write(s, fl[i], 21,
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top + (iY * fontheight) + (fontheight / 2),
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Font::HAlignLeft, Font::VAlignMiddle);
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} else
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gmenu2x->font->write(s, trimExtension(fl[i]), 4,
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top + (iY * fontheight) + (fontheight / 2),
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Font::HAlignLeft, Font::VAlignMiddle);
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}
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s.clearClipRect();
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gmenu2x->drawScrollBar(nb_elements, fl.size(), firstElement);
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s.flip();
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switch (gmenu2x->input.waitForPressedButton()) {
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case InputManager::SETTINGS:
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close = true;
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result = false;
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break;
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case InputManager::UP:
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if (selected == 0) selected = fl.size() -1;
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else selected -= 1;
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break;
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case InputManager::ALTLEFT:
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if ((int)(selected - nb_elements + 1) < 0)
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selected = 0;
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else
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selected -= nb_elements - 1;
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break;
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case InputManager::DOWN:
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if (selected+1>=fl.size()) selected = 0;
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else selected += 1;
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break;
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case InputManager::ALTRIGHT:
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if (selected + nb_elements - 1 >= fl.size())
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selected = fl.size() - 1;
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else
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selected += nb_elements - 1;
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break;
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case InputManager::CANCEL:
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if (!link->getSelectorBrowser()) {
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close = true;
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result = false;
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break;
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}
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case InputManager::LEFT:
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if (link->getSelectorBrowser()) {
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string::size_type p = dir.rfind("/", dir.size()-2);
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if (p==string::npos || dir.compare(0, 1, "/") != 0 || dir.length() < 2) {
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close = true;
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result = false;
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} else {
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dir = dir.substr(0,p+1);
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selected = 0;
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firstElement = 0;
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prepare(fl);
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}
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}
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break;
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case InputManager::ACCEPT:
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if (fl.isFile(selected)) {
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file = fl[selected];
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close = true;
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} else {
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dir = dir+fl[selected];
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char *buf = realpath(dir.c_str(), NULL);
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dir = (string) buf + '/';
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free(buf);
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selected = 0;
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firstElement = 0;
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prepare(fl);
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}
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break;
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default:
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break;
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}
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}
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return result ? (int)selected : -1;
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}
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void Selector::prepare(FileLister& fl) {
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fl.setPath(dir);
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screendir = dir;
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if (!screendir.empty() && screendir[screendir.length() - 1] != '/') {
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screendir += "/";
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}
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screendir += "previews/";
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}
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