void
LocaleWindow::_EnableDisableLanguages()
{
DisableUpdates();
for (int32 i = 0; i < fLanguageListView->FullListCountItems(); i++) {
LanguageListItem* item = static_cast<LanguageListItem*>(
fLanguageListView->FullListItemAt(i));
bool enable = fPreferredListView->ItemForLanguageID(item->ID()) == NULL;
if (item->IsEnabled() != enable) {
item->SetEnabled(enable);
int32 visibleIndex = fLanguageListView->IndexOf(item);
if (visibleIndex >= 0) {
if (!enable)
fLanguageListView->Deselect(visibleIndex);
fLanguageListView->InvalidateItem(visibleIndex);
}
}
}
SettingsChanged();
EnableUpdates();
}
/** Creates and feeds a LanguageListItem for a single language node
*
* The created LanguageListItem sin't push_back here. It is passed
* to treatLanguageCountries to be pushed back later as each
* Language/Country pair is a new entry in the language list
*
*/
void RainbruRPG::Options::xmlLanguage::treatOneLanguage(TiXmlElement* e){
LanguageListItem lli;
lli.setLanguageCode(getCommonCode(e));
lli.setLanguageText(getCommonText(e));
treatLanguageCountries(e, lli);
}
static int
compare_typed_list_items(const BListItem* _a, const BListItem* _b)
{
// TODO: sort them using collators.
LanguageListItem* a = (LanguageListItem*)_a;
LanguageListItem* b = (LanguageListItem*)_b;
return strcasecmp(a->Text(), b->Text());
}
static int
compare_typed_list_items(const BListItem* _a, const BListItem* _b)
{
static BCollator collator;
LanguageListItem* a = (LanguageListItem*)_a;
LanguageListItem* b = (LanguageListItem*)_b;
return collator.Compare(a->Text(), b->Text());
}
LanguageListItem::LanguageListItem(const LanguageListItem& other)
:
BStringItem(other.Text()),
fID(other.fID),
fCode(other.fCode)
{
}
LanguageListItem*
LanguageListView::ItemForLanguageCode(const char* code, int32* _index) const
{
for (int32 index = 0; index < FullListCountItems(); index++) {
LanguageListItem* item
= static_cast<LanguageListItem*>(FullListItemAt(index));
if (item->Code() == code) {
if (_index != NULL)
*_index = index;
return item;
}
}
return NULL;
}
void
LocaleWindow::_PreferredLanguagesChanged()
{
BMessage preferredLanguages;
int index = 0;
while (index < fPreferredListView->FullListCountItems()) {
// only include subitems: we can guess the superitem from them anyway
LanguageListItem* item = static_cast<LanguageListItem*>(
fPreferredListView->FullListItemAt(index));
if (item != NULL)
preferredLanguages.AddString("language", item->ID());
index++;
}
MutableLocaleRoster::Default()->SetPreferredLanguages(&preferredLanguages);
_EnableDisableLanguages();
}
void
LocaleWindow::_PreferredLanguagesChanged()
{
BMessage update(kMsgSettingsChanged);
int index = 0;
while (index < fPreferredListView->FullListCountItems()) {
// only include subitems: we can guess the superitem
// from them anyway
LanguageListItem* item = static_cast<LanguageListItem*>(
fPreferredListView->FullListItemAt(index));
if (item != NULL)
update.AddString("language", item->ID());
index++;
}
be_app_messenger.SendMessage(&update);
_EnableDisableLanguages();
}
LocaleWindow::LocaleWindow()
:
BWindow(BRect(0, 0, 0, 0), B_TRANSLATE_SYSTEM_NAME("Locale"), B_TITLED_WINDOW,
B_QUIT_ON_WINDOW_CLOSE | B_ASYNCHRONOUS_CONTROLS
| B_AUTO_UPDATE_SIZE_LIMITS),
fInitialConventionsItem(NULL),
fDefaultConventionsItem(NULL),
fFilesystemTranslationCheckbox(NULL)
{
SetLayout(new BGroupLayout(B_HORIZONTAL));
float spacing = be_control_look->DefaultItemSpacing();
BTabView* tabView = new BTabView("tabview");
BGroupView* languageTab = new BGroupView(B_TRANSLATE("Language"),
B_HORIZONTAL, spacing);
// first list: available languages
fLanguageListView = new LanguageListView("available",
B_MULTIPLE_SELECTION_LIST);
BScrollView* scrollView = new BScrollView("scroller", fLanguageListView,
B_WILL_DRAW | B_FRAME_EVENTS, true, true);
fLanguageListView->SetInvocationMessage(new BMessage(kMsgLanguageInvoked));
fLanguageListView->SetDragMessage(new BMessage(kMsgLanguageDragged));
BFont font;
fLanguageListView->GetFont(&font);
// Fill the language list from the LocaleRoster data
BMessage availableLanguages;
if (BLocaleRoster::Default()->GetAvailableLanguages(&availableLanguages)
== B_OK) {
BString currentID;
LanguageListItem* lastAddedCountryItem = NULL;
for (int i = 0; availableLanguages.FindString("language", i, ¤tID)
== B_OK; i++) {
// Now get the human-readable, native name for each language
BString name;
BLanguage currentLanguage(currentID.String());
currentLanguage.GetNativeName(name);
// TODO: the following block fails to detect a couple of language
// names as containing glyphs we can't render. Why's that?
bool hasGlyphs[name.CountChars()];
font.GetHasGlyphs(name.String(), name.CountChars(), hasGlyphs);
for (int32 i = 0; i < name.CountChars(); ++i) {
if (!hasGlyphs[i]) {
// replace by name translated to current language
currentLanguage.GetName(name);
break;
}
}
LanguageListItem* item = new LanguageListItem(name,
currentID.String(), currentLanguage.Code(),
currentLanguage.CountryCode());
if (currentLanguage.IsCountrySpecific()
&& lastAddedCountryItem != NULL
&& lastAddedCountryItem->Code() == item->Code()) {
fLanguageListView->AddUnder(item, lastAddedCountryItem);
} else {
// This is a language variant, add it at top-level
fLanguageListView->AddItem(item);
if (!currentLanguage.IsCountrySpecific()) {
item->SetExpanded(false);
lastAddedCountryItem = item;
}
}
}
fLanguageListView->FullListSortItems(compare_typed_list_items);
} else {
BAlert* alert = new BAlert("Error",
B_TRANSLATE("Unable to find the available languages! You can't "
"use this preflet!"),
B_TRANSLATE("OK"), NULL, NULL,
B_WIDTH_AS_USUAL, B_OFFSET_SPACING, B_STOP_ALERT);
alert->Go();
}
// Second list: active languages
fPreferredListView = new LanguageListView("preferred",
B_MULTIPLE_SELECTION_LIST);
BScrollView* scrollViewEnabled = new BScrollView("scroller",
fPreferredListView, B_WILL_DRAW | B_FRAME_EVENTS, true, true);
fPreferredListView->SetInvocationMessage(
new BMessage(kMsgPreferredLanguageInvoked));
fPreferredListView->SetDeleteMessage(
new BMessage(kMsgPreferredLanguageDeleted));
fPreferredListView->SetDragMessage(
new BMessage(kMsgPreferredLanguageDragged));
BLayoutBuilder::Group<>(languageTab)
.AddGroup(B_VERTICAL, spacing)
.Add(new BStringView("", B_TRANSLATE("Available languages")))
.Add(scrollView)
.End()
.AddGroup(B_VERTICAL, spacing)
.Add(new BStringView("", B_TRANSLATE("Preferred languages")))
.Add(scrollViewEnabled)
.End()
.SetInsets(spacing, spacing, spacing, spacing);
BView* countryTab = new BView(B_TRANSLATE("Formatting"), B_WILL_DRAW);
countryTab->SetLayout(new BGroupLayout(B_VERTICAL, 0));
fConventionsListView = new LanguageListView("formatting",
B_SINGLE_SELECTION_LIST);
scrollView = new BScrollView("scroller", fConventionsListView,
B_WILL_DRAW | B_FRAME_EVENTS, true, true);
fConventionsListView->SetSelectionMessage(
new BMessage(kMsgConventionsSelection));
// get all available formatting conventions (by language)
BFormattingConventions defaultConventions;
BLocale::Default()->GetFormattingConventions(&defaultConventions);
BString conventionID;
fInitialConventionsItem = NULL;
LanguageListItem* lastAddedConventionsItem = NULL;
for (int i = 0;
availableLanguages.FindString("language", i, &conventionID) == B_OK;
i++) {
BFormattingConventions convention(conventionID);
BString conventionName;
convention.GetName(conventionName);
LanguageListItem* item = new LanguageListItem(conventionName,
conventionID, convention.LanguageCode(), convention.CountryCode());
if (!strcmp(conventionID, "en_US"))
fDefaultConventionsItem = item;
if (conventionID.FindFirst('_') >= 0
&& lastAddedConventionsItem != NULL
&& lastAddedConventionsItem->Code() == item->Code()) {
if (!strcmp(conventionID, defaultConventions.ID())) {
fConventionsListView->Expand(lastAddedConventionsItem);
fInitialConventionsItem = item;
}
fConventionsListView->AddUnder(item, lastAddedConventionsItem);
} else {
// This conventions-item isn't country-specific, add it at top-level
fConventionsListView->AddItem(item);
if (conventionID.FindFirst('_') < 0) {
item->SetExpanded(false);
lastAddedConventionsItem = item;
}
if (!strcmp(conventionID, defaultConventions.ID()))
fInitialConventionsItem = item;
}
}
fConventionsListView->FullListSortItems(compare_typed_list_items);
if (fInitialConventionsItem != NULL) {
fConventionsListView->Select(fConventionsListView->IndexOf(
fInitialConventionsItem));
}
fConventionsListView->SetExplicitMinSize(BSize(20 * be_plain_font->Size(),
B_SIZE_UNSET));
fFormatView = new FormatSettingsView();
countryTab->AddChild(BLayoutBuilder::Group<>(B_HORIZONTAL, spacing)
.AddGroup(B_VERTICAL, 3)
.Add(scrollView)
.End()
.Add(fFormatView)
.SetInsets(spacing, spacing, spacing, spacing));
BView* optionsTab = new BView(B_TRANSLATE("Options"), B_WILL_DRAW);
optionsTab->SetLayout(new BGroupLayout(B_VERTICAL, 0));
fFilesystemTranslationCheckbox = new BCheckBox("filesystemTranslation",
B_TRANSLATE("Translate application and folder names in Deskbar and Tracker."),
new BMessage(kMsgFilesystemTranslationChanged));
fFilesystemTranslationCheckbox->SetValue(
BLocaleRoster::Default()->IsFilesystemTranslationPreferred());
optionsTab->AddChild(BLayoutBuilder::Group<>(B_VERTICAL, spacing)
.Add(fFilesystemTranslationCheckbox)
.AddGlue()
.SetInsets(spacing, spacing, spacing, spacing));
tabView->AddTab(languageTab);
tabView->AddTab(countryTab);
tabView->AddTab(optionsTab);
BButton* button
= new BButton(B_TRANSLATE("Defaults"), new BMessage(kMsgDefaults));
fRevertButton
= new BButton(B_TRANSLATE("Revert"), new BMessage(kMsgRevert));
fRevertButton->SetEnabled(false);
BLayoutBuilder::Group<>(this, B_VERTICAL, spacing)
.Add(tabView)
.AddGroup(B_HORIZONTAL, spacing)
.Add(button)
.Add(fRevertButton)
.AddGlue()
.End()
.SetInsets(spacing, spacing, spacing, spacing)
.End();
_Refresh(true);
_SettingsReverted();
CenterOnScreen();
}
void
LocaleWindow::MessageReceived(BMessage* message)
{
switch (message->what) {
case kMsgDefaults:
_Defaults();
break;
case kMsgRevert:
{
_Revert();
fFormatView->Revert();
fConventionsListView->DeselectAll();
if (fInitialConventionsItem != NULL) {
BListItem* superitem
= fConventionsListView->Superitem(fInitialConventionsItem);
if (superitem != NULL)
superitem->SetExpanded(true);
fConventionsListView->Select(fConventionsListView->IndexOf(
fInitialConventionsItem));
fConventionsListView->ScrollToSelection();
}
_SettingsReverted();
break;
}
case kMsgSettingsChanged:
_SettingsChanged();
break;
case kMsgLanguageDragged:
{
void* target = NULL;
if (message->FindPointer("drop_target", &target) != B_OK
|| target != fPreferredListView)
break;
// Add from available languages to preferred languages
int32 dropIndex;
if (message->FindInt32("drop_index", &dropIndex) != B_OK)
dropIndex = fPreferredListView->CountItems();
int32 index = 0;
for (int32 i = 0; message->FindInt32("index", i, &index) == B_OK;
i++) {
LanguageListItem* item = static_cast<LanguageListItem*>(
fLanguageListView->FullListItemAt(index));
_InsertPreferredLanguage(item, dropIndex++);
}
break;
}
case kMsgLanguageInvoked:
{
int32 index = 0;
for (int32 i = 0; message->FindInt32("index", i, &index) == B_OK;
i++) {
LanguageListItem* item = static_cast<LanguageListItem*>(
fLanguageListView->ItemAt(index));
_InsertPreferredLanguage(item);
}
break;
}
case kMsgPreferredLanguageDragged:
{
void* target = NULL;
if (fPreferredListView->CountItems() == 1
|| message->FindPointer("drop_target", &target) != B_OK)
break;
if (target == fPreferredListView) {
// change ordering
int32 dropIndex = message->FindInt32("drop_index");
int32 index = 0;
if (message->FindInt32("index", &index) == B_OK
&& dropIndex != index) {
BListItem* item = fPreferredListView->RemoveItem(index);
if (dropIndex > index)
index--;
fPreferredListView->AddItem(item, dropIndex);
_PreferredLanguagesChanged();
}
break;
}
// supposed to fall through - remove item
}
case kMsgPreferredLanguageDeleted:
case kMsgPreferredLanguageInvoked:
{
if (fPreferredListView->CountItems() == 1)
break;
// Remove from preferred languages
int32 index = 0;
if (message->FindInt32("index", &index) == B_OK) {
delete fPreferredListView->RemoveItem(index);
_PreferredLanguagesChanged();
if (message->what == kMsgPreferredLanguageDeleted)
fPreferredListView->Select(index);
}
break;
}
case kMsgConventionsSelection:
{
// Country selection changed.
// Get the new selected country from the ListView and send it to the
// main app event handler.
void* listView;
if (message->FindPointer("source", &listView) != B_OK)
break;
BListView* conventionsList = static_cast<BListView*>(listView);
if (conventionsList == NULL)
break;
LanguageListItem* item = static_cast<LanguageListItem*>
(conventionsList->ItemAt(conventionsList->CurrentSelection()));
if (item == NULL)
break;
BFormattingConventions conventions(item->ID());
MutableLocaleRoster::Default()->SetDefaultFormattingConventions(
conventions);
_SettingsChanged();
fFormatView->Refresh();
break;
}
case kMsgFilesystemTranslationChanged:
{
MutableLocaleRoster::Default()->SetFilesystemTranslationPreferred(
fFilesystemTranslationCheckbox->Value());
BAlert* alert = new BAlert(B_TRANSLATE("Locale"),
B_TRANSLATE("Deskbar and Tracker need to be restarted for this "
"change to take effect. Would you like to restart them now?"),
B_TRANSLATE("Cancel"), B_TRANSLATE("Restart"), NULL,
B_WIDTH_FROM_WIDEST, B_IDEA_ALERT);
alert->SetShortcut(0, B_ESCAPE);
alert->Go(new BInvoker(new BMessage(kMsgRestartTrackerAndDeskbar),
NULL, be_app));
break;
}
default:
BWindow::MessageReceived(message);
break;
}
}
LocaleWindow::LocaleWindow()
:
BWindow(BRect(0, 0, 0, 0), "Locale", B_TITLED_WINDOW, B_QUIT_ON_WINDOW_CLOSE
| B_ASYNCHRONOUS_CONTROLS | B_AUTO_UPDATE_SIZE_LIMITS)
{
BCountry* defaultCountry;
be_locale_roster->GetDefaultCountry(&defaultCountry);
SetLayout(new BGroupLayout(B_HORIZONTAL));
float spacing = be_control_look->DefaultItemSpacing();
BTabView* tabView = new BTabView("tabview");
BGroupView* languageTab = new BGroupView(B_TRANSLATE("Language"),
B_HORIZONTAL, spacing);
// first list: available languages
fLanguageListView = new LanguageListView("available",
B_MULTIPLE_SELECTION_LIST);
BScrollView* scrollView = new BScrollView("scroller", fLanguageListView,
B_WILL_DRAW | B_FRAME_EVENTS, false, true);
fLanguageListView->SetInvocationMessage(new BMessage(kMsgLanguageInvoked));
fLanguageListView->SetDragMessage(new BMessage(kMsgLanguageDragged));
// Fill the language list from the LocaleRoster data
BMessage installedLanguages;
if (be_locale_roster->GetInstalledLanguages(&installedLanguages) == B_OK) {
BString currentID;
LanguageListItem* lastAddedCountryItem = NULL;
for (int i = 0; installedLanguages.FindString("langs", i, ¤tID)
== B_OK; i++) {
// Now get an human-readable, localized name for each language
BLanguage* currentLanguage;
be_locale_roster->GetLanguage(currentID.String(),
¤tLanguage);
BString name;
currentLanguage->GetName(name);
// TODO: as long as the app_server doesn't support font overlays,
// use the translated name if problematic characters are used...
const char* string = name.String();
while (uint32 code = BUnicodeChar::FromUTF8(&string)) {
if (code > 1424) {
currentLanguage->GetTranslatedName(name);
break;
}
}
LanguageListItem* item = new LanguageListItem(name,
currentID.String(), currentLanguage->Code());
if (currentLanguage->IsCountrySpecific()
&& lastAddedCountryItem != NULL
&& lastAddedCountryItem->Code() == item->Code()) {
fLanguageListView->AddUnder(item, lastAddedCountryItem);
} else {
// This is a language variant, add it at top-level
fLanguageListView->AddItem(item);
if (!currentLanguage->IsCountrySpecific()) {
item->SetExpanded(false);
lastAddedCountryItem = item;
}
}
delete currentLanguage;
}
fLanguageListView->FullListSortItems(compare_typed_list_items);
} else {
BAlert* alert = new BAlert("Error",
B_TRANSLATE("Unable to find the available languages! You can't "
"use this preflet!"),
B_TRANSLATE("OK"), NULL, NULL,
B_WIDTH_AS_USUAL, B_OFFSET_SPACING, B_STOP_ALERT);
alert->Go();
}
// Second list: active languages
fPreferredListView = new LanguageListView("preferred",
B_MULTIPLE_SELECTION_LIST);
BScrollView* scrollViewEnabled = new BScrollView("scroller",
fPreferredListView, B_WILL_DRAW | B_FRAME_EVENTS, false, true);
fPreferredListView->SetInvocationMessage(
new BMessage(kMsgPreferredLanguageInvoked));
fPreferredListView->SetDeleteMessage(
new BMessage(kMsgPreferredLanguageDeleted));
fPreferredListView->SetDragMessage(
new BMessage(kMsgPreferredLanguageDragged));
BLayoutBuilder::Group<>(languageTab)
.AddGroup(B_VERTICAL, spacing)
.Add(new BStringView("", B_TRANSLATE("Available languages")))
.Add(scrollView)
.End()
.AddGroup(B_VERTICAL, spacing)
.Add(new BStringView("", B_TRANSLATE("Preferred languages")))
.Add(scrollViewEnabled)
.End()
.SetInsets(spacing, spacing, spacing, spacing);
BView* countryTab = new BView(B_TRANSLATE("Country"), B_WILL_DRAW);
countryTab->SetLayout(new BGroupLayout(B_VERTICAL, 0));
BListView* listView = new BListView("country", B_SINGLE_SELECTION_LIST);
scrollView = new BScrollView("scroller", listView,
B_WILL_DRAW | B_FRAME_EVENTS, false, true);
listView->SetSelectionMessage(new BMessage(kMsgCountrySelection));
// get all available countries from ICU
// Use DateFormat::getAvailableLocale so we get only the one we can
// use. Maybe check the NumberFormat one and see if there is more.
int32_t localeCount;
const Locale* currentLocale = Locale::getAvailableLocales(localeCount);
for (int index = 0; index < localeCount; index++) {
UnicodeString countryFullName;
BString string;
BStringByteSink sink(&string);
currentLocale[index].getDisplayName(countryFullName);
countryFullName.toUTF8(sink);
LanguageListItem* item
= new LanguageListItem(string, currentLocale[index].getName(),
NULL);
listView->AddItem(item);
if (!strcmp(currentLocale[index].getName(), defaultCountry->Code()))
listView->Select(listView->CountItems() - 1);
}
// TODO: find a real solution intead of this hack
listView->SetExplicitMinSize(
BSize(25 * be_plain_font->Size(), B_SIZE_UNSET));
fFormatView = new FormatView(defaultCountry);
countryTab->AddChild(BLayoutBuilder::Group<>(B_HORIZONTAL, spacing)
.AddGroup(B_VERTICAL, 3)
.Add(scrollView)
.End()
.Add(fFormatView)
.SetInsets(spacing, spacing, spacing, spacing));
listView->ScrollToSelection();
tabView->AddTab(languageTab);
tabView->AddTab(countryTab);
BButton* button = new BButton(B_TRANSLATE("Defaults"),
new BMessage(kMsgDefaults));
fRevertButton = new BButton(B_TRANSLATE("Revert"),
new BMessage(kMsgRevert));
fRevertButton->SetEnabled(false);
BLayoutBuilder::Group<>(this, B_VERTICAL, spacing)
.Add(tabView)
.AddGroup(B_HORIZONTAL, spacing)
.Add(button)
.Add(fRevertButton)
.AddGlue()
.End()
.SetInsets(spacing, spacing, spacing, spacing)
.End();
_UpdatePreferredFromLocaleRoster();
SettingsReverted();
CenterOnScreen();
}
void
LocaleWindow::MessageReceived(BMessage* message)
{
switch (message->what) {
case kMsgDefaults:
_Defaults();
break;
case kMsgRevert:
be_app_messenger.SendMessage(message);
_UpdatePreferredFromLocaleRoster();
break;
case kMsgLanguageDragged:
{
void* target = NULL;
if (message->FindPointer("drop_target", &target) != B_OK
|| target != fPreferredListView)
break;
// Add from available languages to preferred languages
int32 dropIndex;
if (message->FindInt32("drop_index", &dropIndex) != B_OK)
dropIndex = fPreferredListView->CountItems();
int32 index = 0;
for (int32 i = 0; message->FindInt32("index", i, &index) == B_OK;
i++) {
LanguageListItem* item = static_cast<LanguageListItem*>(
fLanguageListView->FullListItemAt(index));
_InsertPreferredLanguage(item, dropIndex++);
}
break;
}
case kMsgLanguageInvoked:
{
int32 index = 0;
for (int32 i = 0; message->FindInt32("index", i, &index) == B_OK;
i++) {
LanguageListItem* item = static_cast<LanguageListItem*>(
fLanguageListView->ItemAt(index));
_InsertPreferredLanguage(item);
}
break;
}
case kMsgPreferredLanguageDragged:
{
void* target = NULL;
if (fPreferredListView->CountItems() == 1
|| message->FindPointer("drop_target", &target) != B_OK)
break;
if (target == fPreferredListView) {
// change ordering
int32 dropIndex = message->FindInt32("drop_index");
int32 index = 0;
if (message->FindInt32("index", &index) == B_OK
&& dropIndex != index) {
BListItem* item = fPreferredListView->RemoveItem(index);
if (dropIndex > index)
index--;
fPreferredListView->AddItem(item, dropIndex);
_PreferredLanguagesChanged();
}
break;
}
// supposed to fall through - remove item
}
case kMsgPreferredLanguageDeleted:
case kMsgPreferredLanguageInvoked:
{
if (fPreferredListView->CountItems() == 1)
break;
// Remove from preferred languages
int32 index = 0;
if (message->FindInt32("index", &index) == B_OK) {
delete fPreferredListView->RemoveItem(index);
_PreferredLanguagesChanged();
if (message->what == kMsgPreferredLanguageDeleted)
fPreferredListView->Select(index);
}
break;
}
case kMsgCountrySelection:
{
// Country selection changed.
// Get the new selected country from the ListView and send it to the
// main app event handler.
void* listView;
if (message->FindPointer("source", &listView) != B_OK)
break;
BListView* countryList = static_cast<BListView*>(listView);
LanguageListItem* item = static_cast<LanguageListItem*>
(countryList->ItemAt(countryList->CurrentSelection()));
BMessage newMessage(kMsgSettingsChanged);
newMessage.AddString("country", item->ID());
be_app_messenger.SendMessage(&newMessage);
SettingsChanged();
BCountry* country = new BCountry(item->ID());
fFormatView->SetCountry(country);
break;
}
default:
BWindow::MessageReceived(message);
break;
}
}
bool
LanguageListView::InitiateDrag(BPoint point, int32 dragIndex,
bool /*wasSelected*/)
{
if (fDragMessage == NULL)
return false;
BListItem* item = ItemAt(CurrentSelection(0));
if (item == NULL) {
// workaround for a timing problem
// TODO: this should support extending the selection
item = ItemAt(dragIndex);
Select(dragIndex);
}
if (item == NULL)
return false;
// create drag message
BMessage message = *fDragMessage;
message.AddPointer("listview", this);
for (int32 i = 0;; i++) {
int32 index = CurrentSelection(i);
if (index < 0)
break;
message.AddInt32("index", index);
}
// figure out drag rect
BRect dragRect(0.0, 0.0, Bounds().Width(), -1.0);
int32 numItems = 0;
bool fade = false;
// figure out, how many items fit into our bitmap
for (int32 i = 0, index; message.FindInt32("index", i, &index) == B_OK;
i++) {
BListItem* item = ItemAt(index);
if (item == NULL)
break;
dragRect.bottom += ceilf(item->Height()) + 1.0;
numItems++;
if (dragRect.Height() > MAX_DRAG_HEIGHT) {
dragRect.bottom = MAX_DRAG_HEIGHT;
fade = true;
break;
}
}
BBitmap* dragBitmap = new BBitmap(dragRect, B_RGB32, true);
if (dragBitmap->IsValid()) {
BView* view = new BView(dragBitmap->Bounds(), "helper", B_FOLLOW_NONE,
B_WILL_DRAW);
dragBitmap->AddChild(view);
dragBitmap->Lock();
BRect itemBounds(dragRect) ;
itemBounds.bottom = 0.0;
// let all selected items, that fit into our drag_bitmap, draw
for (int32 i = 0; i < numItems; i++) {
int32 index = message.FindInt32("index", i);
LanguageListItem* item
= static_cast<LanguageListItem*>(ItemAt(index));
itemBounds.bottom = itemBounds.top + ceilf(item->Height());
if (itemBounds.bottom > dragRect.bottom)
itemBounds.bottom = dragRect.bottom;
item->DrawItem(view, itemBounds);
itemBounds.top = itemBounds.bottom + 1.0;
}
// make a black frame arround the edge
view->SetHighColor(0, 0, 0, 255);
view->StrokeRect(view->Bounds());
view->Sync();
uint8* bits = (uint8*)dragBitmap->Bits();
int32 height = (int32)dragBitmap->Bounds().Height() + 1;
int32 width = (int32)dragBitmap->Bounds().Width() + 1;
int32 bpr = dragBitmap->BytesPerRow();
if (fade) {
for (int32 y = 0; y < height - ALPHA / 2; y++, bits += bpr) {
uint8* line = bits + 3;
for (uint8* end = line + 4 * width; line < end; line += 4)
*line = ALPHA;
}
for (int32 y = height - ALPHA / 2; y < height;
y++, bits += bpr) {
uint8* line = bits + 3;
for (uint8* end = line + 4 * width; line < end; line += 4)
*line = (height - y) << 1;
}
} else {
for (int32 y = 0; y < height; y++, bits += bpr) {
uint8* line = bits + 3;
for (uint8* end = line + 4 * width; line < end; line += 4)
*line = ALPHA;
}
}
dragBitmap->Unlock();
} else {
delete dragBitmap;
dragBitmap = NULL;
}
if (dragBitmap != NULL)
DragMessage(&message, dragBitmap, B_OP_ALPHA, BPoint(0.0, 0.0));
else
DragMessage(&message, dragRect.OffsetToCopy(point), this);
return true;
}
