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372
irr/src/CGUIFileOpenDialog.cpp
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372
irr/src/CGUIFileOpenDialog.cpp
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// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "CGUIFileOpenDialog.h"
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#include "IGUISkin.h"
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#include "IGUIEnvironment.h"
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#include "IVideoDriver.h"
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#include "IGUIButton.h"
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#include "IGUIStaticText.h"
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#include "IGUIFont.h"
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#include "IGUIFontBitmap.h"
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#include "IFileList.h"
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#include "os.h"
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namespace irr
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{
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namespace gui
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{
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const s32 FOD_WIDTH = 350;
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const s32 FOD_HEIGHT = 250;
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//! constructor
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CGUIFileOpenDialog::CGUIFileOpenDialog(const wchar_t *title,
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IGUIEnvironment *environment, IGUIElement *parent, s32 id,
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bool restoreCWD, io::path::char_type *startDir) :
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IGUIFileOpenDialog(environment, parent, id,
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core::rect<s32>((parent->getAbsolutePosition().getWidth() - FOD_WIDTH) / 2,
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(parent->getAbsolutePosition().getHeight() - FOD_HEIGHT) / 2,
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(parent->getAbsolutePosition().getWidth() - FOD_WIDTH) / 2 + FOD_WIDTH,
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(parent->getAbsolutePosition().getHeight() - FOD_HEIGHT) / 2 + FOD_HEIGHT)),
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FileNameText(0), FileList(0), Dragging(false)
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{
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#ifdef _DEBUG
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IGUIElement::setDebugName("CGUIFileOpenDialog");
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#endif
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Text = title;
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FileSystem = Environment ? Environment->getFileSystem() : 0;
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if (FileSystem) {
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FileSystem->grab();
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if (restoreCWD)
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RestoreDirectory = FileSystem->getWorkingDirectory();
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if (startDir) {
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StartDirectory = startDir;
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FileSystem->changeWorkingDirectoryTo(startDir);
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}
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} else
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return;
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IGUISpriteBank *sprites = 0;
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video::SColor color(255, 255, 255, 255);
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IGUISkin *skin = Environment->getSkin();
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if (skin) {
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sprites = skin->getSpriteBank();
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color = skin->getColor(EGDC_WINDOW_SYMBOL);
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}
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const s32 buttonw = skin ? skin->getSize(EGDS_WINDOW_BUTTON_WIDTH) : 2;
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const s32 posx = RelativeRect.getWidth() - buttonw - 4;
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CloseButton = Environment->addButton(core::rect<s32>(posx, 3, posx + buttonw, 3 + buttonw), this, -1,
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L"", skin ? skin->getDefaultText(EGDT_WINDOW_CLOSE) : L"Close");
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CloseButton->setSubElement(true);
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CloseButton->setTabStop(false);
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if (sprites && skin) {
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CloseButton->setSpriteBank(sprites);
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CloseButton->setSprite(EGBS_BUTTON_UP, skin->getIcon(EGDI_WINDOW_CLOSE), color);
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CloseButton->setSprite(EGBS_BUTTON_DOWN, skin->getIcon(EGDI_WINDOW_CLOSE), color);
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}
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CloseButton->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_UPPERLEFT);
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CloseButton->grab();
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OKButton = Environment->addButton(
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core::rect<s32>(RelativeRect.getWidth() - 80, 30, RelativeRect.getWidth() - 10, 50),
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this, -1, skin ? skin->getDefaultText(EGDT_MSG_BOX_OK) : L"OK");
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OKButton->setSubElement(true);
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OKButton->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_UPPERLEFT);
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OKButton->grab();
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CancelButton = Environment->addButton(
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core::rect<s32>(RelativeRect.getWidth() - 80, 55, RelativeRect.getWidth() - 10, 75),
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this, -1, skin ? skin->getDefaultText(EGDT_MSG_BOX_CANCEL) : L"Cancel");
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CancelButton->setSubElement(true);
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CancelButton->setAlignment(EGUIA_LOWERRIGHT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_UPPERLEFT);
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CancelButton->grab();
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FileBox = Environment->addListBox(core::rect<s32>(10, 55, RelativeRect.getWidth() - 90, 230), this, -1, true);
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FileBox->setSubElement(true);
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FileBox->setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
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FileBox->grab();
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FileNameText = Environment->addEditBox(0, core::rect<s32>(10, 30, RelativeRect.getWidth() - 90, 50), true, this);
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FileNameText->setSubElement(true);
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FileNameText->setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_UPPERLEFT);
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FileNameText->grab();
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setTabGroup(true);
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fillListBox();
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}
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//! destructor
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CGUIFileOpenDialog::~CGUIFileOpenDialog()
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{
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if (CloseButton)
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CloseButton->drop();
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if (OKButton)
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OKButton->drop();
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if (CancelButton)
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CancelButton->drop();
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if (FileBox)
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FileBox->drop();
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if (FileNameText)
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FileNameText->drop();
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if (FileSystem) {
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// revert to original CWD if path was set in constructor
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if (RestoreDirectory.size())
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FileSystem->changeWorkingDirectoryTo(RestoreDirectory);
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FileSystem->drop();
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}
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if (FileList)
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FileList->drop();
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}
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//! returns the filename of the selected file. Returns NULL, if no file was selected.
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const wchar_t *CGUIFileOpenDialog::getFileName() const
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{
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return FileNameW.c_str();
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}
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const io::path &CGUIFileOpenDialog::getFileNameP() const
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{
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return FileName;
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}
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//! Returns the directory of the selected file. Returns NULL, if no directory was selected.
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const io::path &CGUIFileOpenDialog::getDirectoryName() const
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{
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return FileDirectoryFlat;
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}
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const wchar_t *CGUIFileOpenDialog::getDirectoryNameW() const
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{
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return FileDirectoryFlatW.c_str();
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}
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void CGUIFileOpenDialog::setFileName(const irr::io::path &name)
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{
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FileName = name;
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pathToStringW(FileNameW, FileName);
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}
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void CGUIFileOpenDialog::setDirectoryName(const irr::io::path &name)
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{
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FileDirectory = name;
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FileDirectoryFlat = name;
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FileSystem->flattenFilename(FileDirectoryFlat);
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pathToStringW(FileDirectoryFlatW, FileDirectoryFlat);
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}
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//! called if an event happened.
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bool CGUIFileOpenDialog::OnEvent(const SEvent &event)
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{
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if (isEnabled()) {
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switch (event.EventType) {
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case EET_GUI_EVENT:
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switch (event.GUIEvent.EventType) {
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case EGET_ELEMENT_FOCUS_LOST:
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Dragging = false;
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break;
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case EGET_BUTTON_CLICKED:
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if (event.GUIEvent.Caller == CloseButton ||
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event.GUIEvent.Caller == CancelButton) {
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sendCancelEvent();
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remove();
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return true;
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} else if (event.GUIEvent.Caller == OKButton) {
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if (FileDirectory != L"") {
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sendSelectedEvent(EGET_DIRECTORY_SELECTED);
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}
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if (FileName != L"") {
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sendSelectedEvent(EGET_FILE_SELECTED);
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remove();
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return true;
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}
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}
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break;
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case EGET_LISTBOX_CHANGED: {
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s32 selected = FileBox->getSelected();
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if (FileList && FileSystem) {
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if (FileList->isDirectory(selected)) {
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setFileName("");
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setDirectoryName(FileList->getFullFileName(selected));
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} else {
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setDirectoryName("");
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setFileName(FileList->getFullFileName(selected));
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}
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return true;
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}
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} break;
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case EGET_LISTBOX_SELECTED_AGAIN: {
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const s32 selected = FileBox->getSelected();
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if (FileList && FileSystem) {
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if (FileList->isDirectory(selected)) {
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setDirectoryName(FileList->getFullFileName(selected));
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FileSystem->changeWorkingDirectoryTo(FileDirectory);
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fillListBox();
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setFileName("");
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} else {
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setFileName(FileList->getFullFileName(selected));
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}
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return true;
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}
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} break;
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case EGET_EDITBOX_ENTER:
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if (event.GUIEvent.Caller == FileNameText) {
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io::path dir(FileNameText->getText());
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if (FileSystem->changeWorkingDirectoryTo(dir)) {
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fillListBox();
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setFileName("");
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}
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return true;
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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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break;
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case EET_MOUSE_INPUT_EVENT:
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switch (event.MouseInput.Event) {
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case EMIE_MOUSE_WHEEL:
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return FileBox->OnEvent(event);
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case EMIE_LMOUSE_PRESSED_DOWN:
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DragStart.X = event.MouseInput.X;
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DragStart.Y = event.MouseInput.Y;
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Dragging = true;
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return true;
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case EMIE_LMOUSE_LEFT_UP:
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Dragging = false;
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return true;
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case EMIE_MOUSE_MOVED:
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if (!event.MouseInput.isLeftPressed())
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Dragging = false;
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if (Dragging) {
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// gui window should not be dragged outside its parent
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if (Parent)
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if (event.MouseInput.X < Parent->getAbsolutePosition().UpperLeftCorner.X + 1 ||
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event.MouseInput.Y < Parent->getAbsolutePosition().UpperLeftCorner.Y + 1 ||
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event.MouseInput.X > Parent->getAbsolutePosition().LowerRightCorner.X - 1 ||
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event.MouseInput.Y > Parent->getAbsolutePosition().LowerRightCorner.Y - 1)
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return true;
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move(core::position2d<s32>(event.MouseInput.X - DragStart.X, event.MouseInput.Y - DragStart.Y));
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DragStart.X = event.MouseInput.X;
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DragStart.Y = event.MouseInput.Y;
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return true;
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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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default:
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break;
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}
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}
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return IGUIElement::OnEvent(event);
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}
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//! draws the element and its children
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void CGUIFileOpenDialog::draw()
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{
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if (!IsVisible)
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return;
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IGUISkin *skin = Environment->getSkin();
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core::rect<s32> rect = AbsoluteRect;
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rect = skin->draw3DWindowBackground(this, true, skin->getColor(EGDC_ACTIVE_BORDER),
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rect, &AbsoluteClippingRect);
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if (Text.size()) {
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rect.UpperLeftCorner.X += 2;
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rect.LowerRightCorner.X -= skin->getSize(EGDS_WINDOW_BUTTON_WIDTH) + 5;
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IGUIFont *font = skin->getFont(EGDF_WINDOW);
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if (font)
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font->draw(Text.c_str(), rect,
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skin->getColor(EGDC_ACTIVE_CAPTION),
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false, true, &AbsoluteClippingRect);
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}
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IGUIElement::draw();
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}
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void CGUIFileOpenDialog::pathToStringW(irr::core::stringw &result, const irr::io::path &p)
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{
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core::multibyteToWString(result, p);
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}
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//! fills the listbox with files.
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void CGUIFileOpenDialog::fillListBox()
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{
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IGUISkin *skin = Environment->getSkin();
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if (!FileSystem || !FileBox || !skin)
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return;
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if (FileList)
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FileList->drop();
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FileBox->clear();
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FileList = FileSystem->createFileList();
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core::stringw s;
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if (FileList) {
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for (u32 i = 0; i < FileList->getFileCount(); ++i) {
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pathToStringW(s, FileList->getFileName(i));
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FileBox->addItem(s.c_str(), skin->getIcon(FileList->isDirectory(i) ? EGDI_DIRECTORY : EGDI_FILE));
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}
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}
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if (FileNameText) {
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setDirectoryName(FileSystem->getWorkingDirectory());
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pathToStringW(s, FileDirectory);
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FileNameText->setText(s.c_str());
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}
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}
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//! sends the event that the file has been selected.
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void CGUIFileOpenDialog::sendSelectedEvent(EGUI_EVENT_TYPE type)
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{
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SEvent event;
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event.EventType = EET_GUI_EVENT;
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event.GUIEvent.Caller = this;
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event.GUIEvent.Element = 0;
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event.GUIEvent.EventType = type;
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Parent->OnEvent(event);
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}
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//! sends the event that the file choose process has been cancelled
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void CGUIFileOpenDialog::sendCancelEvent()
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{
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SEvent event;
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event.EventType = EET_GUI_EVENT;
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event.GUIEvent.Caller = this;
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event.GUIEvent.Element = 0;
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event.GUIEvent.EventType = EGET_FILE_CHOOSE_DIALOG_CANCELLED;
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Parent->OnEvent(event);
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}
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} // end namespace gui
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} // end namespace irr
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