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First check-in of the "jucequake": a major re-organisation of the library to break it up into modules. For more details about this, see the website forum..

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Julian Storer 2011-08-12 10:04:52 +01:00
parent 1a21c89755
commit b70e0a28d2
1527 changed files with 90380 additions and 396643 deletions
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283
src/native/windows/juce_win32_FileChooser.cpp
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/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-11 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online at www.gnu.org/licenses.
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
// (This file gets included by juce_win32_NativeCode.cpp, rather than being
// compiled on its own).
#if JUCE_INCLUDED_FILE
//==============================================================================
namespace FileChooserHelpers
{
static bool areThereAnyAlwaysOnTopWindows()
{
for (int i = Desktop::getInstance().getNumComponents(); --i >= 0;)
{
Component* c = Desktop::getInstance().getComponent (i);
if (c != nullptr && c->isAlwaysOnTop() && c->isShowing())
return true;
}
return false;
}
struct FileChooserCallbackInfo
{
String initialPath;
String returnedString; // need this to get non-existent pathnames from the directory chooser
ScopedPointer<Component> customComponent;
};
static int CALLBACK browseCallbackProc (HWND hWnd, UINT msg, LPARAM lParam, LPARAM lpData)
{
FileChooserCallbackInfo* info = (FileChooserCallbackInfo*) lpData;
if (msg == BFFM_INITIALIZED)
SendMessage (hWnd, BFFM_SETSELECTIONW, TRUE, (LPARAM) info->initialPath.toWideCharPointer());
else if (msg == BFFM_VALIDATEFAILEDW)
info->returnedString = (LPCWSTR) lParam;
else if (msg == BFFM_VALIDATEFAILEDA)
info->returnedString = (const char*) lParam;
return 0;
}
static UINT_PTR CALLBACK openCallback (HWND hdlg, UINT uiMsg, WPARAM /*wParam*/, LPARAM lParam)
{
if (uiMsg == WM_INITDIALOG)
{
Component* customComp = ((FileChooserCallbackInfo*) (((OPENFILENAMEW*) lParam)->lCustData))->customComponent;
HWND dialogH = GetParent (hdlg);
jassert (dialogH != 0);
if (dialogH == 0)
dialogH = hdlg;
RECT r, cr;
GetWindowRect (dialogH, &r);
GetClientRect (dialogH, &cr);
SetWindowPos (dialogH, 0,
r.left, r.top,
customComp->getWidth() + jmax (150, (int) (r.right - r.left)),
jmax (150, (int) (r.bottom - r.top)),
SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER);
customComp->setBounds (cr.right, cr.top, customComp->getWidth(), cr.bottom - cr.top);
customComp->addToDesktop (0, dialogH);
}
else if (uiMsg == WM_NOTIFY)
{
LPOFNOTIFY ofn = (LPOFNOTIFY) lParam;
if (ofn->hdr.code == CDN_SELCHANGE)
{
FileChooserCallbackInfo* info = (FileChooserCallbackInfo*) ofn->lpOFN->lCustData;
FilePreviewComponent* comp = dynamic_cast<FilePreviewComponent*> (info->customComponent->getChildComponent(0));
if (comp != nullptr)
{
WCHAR path [MAX_PATH * 2] = { 0 };
CommDlg_OpenSave_GetFilePath (GetParent (hdlg), (LPARAM) &path, MAX_PATH);
comp->selectedFileChanged (File (path));
}
}
}
return 0;
}
class CustomComponentHolder : public Component
{
public:
CustomComponentHolder (Component* customComp)
{
setVisible (true);
setOpaque (true);
addAndMakeVisible (customComp);
setSize (jlimit (20, 800, customComp->getWidth()), customComp->getHeight());
}
void paint (Graphics& g)
{
g.fillAll (Colours::lightgrey);
}
void resized()
{
Component* const c = getChildComponent(0);
if (c != nullptr)
c->setBounds (getLocalBounds());
}
private:
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (CustomComponentHolder);
};
}
//==============================================================================
void FileChooser::showPlatformDialog (Array<File>& results, const String& title_, const File& currentFileOrDirectory,
const String& filter, bool selectsDirectory, bool /*selectsFiles*/,
bool isSaveDialogue, bool warnAboutOverwritingExistingFiles,
bool selectMultipleFiles, FilePreviewComponent* extraInfoComponent)
{
using namespace FileChooserHelpers;
const String title (title_);
HeapBlock<WCHAR> files;
const int charsAvailableForResult = 32768;
files.calloc (charsAvailableForResult + 1);
int filenameOffset = 0;
FileChooserCallbackInfo info;
// use a modal window as the parent for this dialog box
// to block input from other app windows
Component parentWindow (String::empty);
const Rectangle<int> mainMon (Desktop::getInstance().getMainMonitorArea());
parentWindow.setBounds (mainMon.getX() + mainMon.getWidth() / 4,
mainMon.getY() + mainMon.getHeight() / 4,
0, 0);
parentWindow.setOpaque (true);
parentWindow.setAlwaysOnTop (areThereAnyAlwaysOnTopWindows());
parentWindow.addToDesktop (0);
if (extraInfoComponent == nullptr)
parentWindow.enterModalState();
if (currentFileOrDirectory.isDirectory())
{
info.initialPath = currentFileOrDirectory.getFullPathName();
}
else
{
currentFileOrDirectory.getFileName().copyToUTF16 (files, charsAvailableForResult * sizeof (WCHAR));
info.initialPath = currentFileOrDirectory.getParentDirectory().getFullPathName();
}
if (selectsDirectory)
{
BROWSEINFO bi = { 0 };
bi.hwndOwner = (HWND) parentWindow.getWindowHandle();
bi.pszDisplayName = files;
bi.lpszTitle = title.toWideCharPointer();
bi.lParam = (LPARAM) &info;
bi.lpfn = browseCallbackProc;
#ifdef BIF_USENEWUI
bi.ulFlags = BIF_USENEWUI | BIF_VALIDATE;
#else
bi.ulFlags = 0x50;
#endif
LPITEMIDLIST list = SHBrowseForFolder (&bi);
if (! SHGetPathFromIDListW (list, files))
{
files[0] = 0;
info.returnedString = String::empty;
}
LPMALLOC al;
if (list != 0 && SUCCEEDED (SHGetMalloc (&al)))
al->Free (list);
if (info.returnedString.isNotEmpty())
{
results.add (File (String (files)).getSiblingFile (info.returnedString));
return;
}
}
else
{
DWORD flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_NOCHANGEDIR | OFN_HIDEREADONLY;
if (warnAboutOverwritingExistingFiles)
flags |= OFN_OVERWRITEPROMPT;
if (selectMultipleFiles)
flags |= OFN_ALLOWMULTISELECT;
if (extraInfoComponent != nullptr)
{
flags |= OFN_ENABLEHOOK;
info.customComponent = new CustomComponentHolder (extraInfoComponent);
info.customComponent->enterModalState();
}
const int filterSpaceNumChars = 2048;
HeapBlock<WCHAR> filters;
filters.calloc (filterSpaceNumChars);
const int bytesWritten = filter.copyToUTF16 (filters.getData(), filterSpaceNumChars * sizeof (WCHAR));
filter.copyToUTF16 (filters + (bytesWritten / sizeof (WCHAR)) + 1,
(filterSpaceNumChars - 1) * sizeof (WCHAR) - bytesWritten);
OPENFILENAMEW of = { 0 };
String localPath (info.initialPath);
#ifdef OPENFILENAME_SIZE_VERSION_400W
of.lStructSize = OPENFILENAME_SIZE_VERSION_400W;
#else
of.lStructSize = sizeof (of);
#endif
of.hwndOwner = (HWND) parentWindow.getWindowHandle();
of.lpstrFilter = filters.getData();
of.nFilterIndex = 1;
of.lpstrFile = files;
of.nMaxFile = charsAvailableForResult;
of.lpstrInitialDir = localPath.toWideCharPointer();
of.lpstrTitle = title.toWideCharPointer();
of.Flags = flags;
of.lCustData = (LPARAM) &info;
if (extraInfoComponent != nullptr)
of.lpfnHook = &openCallback;
if (! (isSaveDialogue ? GetSaveFileName (&of)
: GetOpenFileName (&of)))
return;
filenameOffset = of.nFileOffset;
}
if (selectMultipleFiles && filenameOffset > 0 && files [filenameOffset - 1] == 0)
{
const WCHAR* filename = files + filenameOffset;
while (*filename != 0)
{
results.add (File (String (files) + "\\" + String (filename)));
filename += wcslen (filename) + 1;
}
}
else if (files[0] != 0)
{
results.add (File (String (files)));
}
}
#endif