本文整理汇总了C++中BScrollBar类的典型用法代码示例。如果您正苦于以下问题：C++ BScrollBar类的具体用法？C++ BScrollBar怎么用？C++ BScrollBar使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了BScrollBar类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: r
int32
LibraryWindow::ScanThread(void *data)
{
LibraryWindow *win = (LibraryWindow *)data;
float maxwidth;
BRect r(5,5,105,20);
BView *systemheader = win->AddHeader(r.LeftTop(),TR("System Libraries:"));
win->Lock();
r = systemheader->Frame();
win->Unlock();
maxwidth = r.right;
r.OffsetBy(0,r.Height() + 10);
DPath sysPath = GetSystemPath(B_USER_DEVELOP_DIRECTORY);
sysPath << "lib/x86";
BRect out = win->ScanFolder(r.LeftTop(),sysPath.GetFullPath(),&maxwidth);
if (out != BRect(0,0,-1,-1))
{
r = out;
r.OffsetBy(0,10);
}
if (gPlatform == PLATFORM_HAIKU || gPlatform == PLATFORM_HAIKU_GCC4)
{
BView *commonheader = win->AddHeader(r.LeftTop(),TR("Common Libraries:"));
win->Lock();
r = commonheader->Frame();
win->Unlock();
maxwidth = MAX(r.right,maxwidth);
r.OffsetBy(0,r.Height() + 10);
out = win->ScanFolder(r.LeftTop(),GetSystemPath(B_USER_LIB_DIRECTORY).GetFullPath(),
&maxwidth);
if (out != BRect(0,0,-1,-1))
{
r = out;
r.OffsetBy(0,10);
}
}
BView *userheader = win->AddHeader(r.LeftTop(),TR("User Libraries:"));
win->Lock();
r = userheader->Frame();
win->Unlock();
maxwidth = MAX(r.right,maxwidth);
r.OffsetBy(0,r.Height() + 10);
out = win->ScanFolder(r.LeftTop(),GetSystemPath(B_USER_LIB_DIRECTORY).GetFullPath(),
&maxwidth);
if (out.IsValid())
{
r = out;
r.OffsetBy(0,10);
}
win->Lock();
BView *top = win->GetBackgroundView();
BScrollView *scrollView = (BScrollView*)top->FindView("scrollView");
BScrollBar *vbar = scrollView->ScrollBar(B_VERTICAL);
vbar->SetRange(0, r.bottom - scrollView->Bounds().Height());
vbar->SetSteps(r.Height() * 2.0,r.Height() * 8.0);
gSettings.Lock();
BRect savedframe;
if (gSettings.FindRect("libwin_frame",&savedframe) == B_OK)
win->ResizeTo(savedframe.Width(),savedframe.Height());
gSettings.Unlock();
BStringView *label = (BStringView*)top->FindView("label");
label->SetText(TR("Choose the system libraries for your project."));
float minw = label->Frame().right + 10;
win->SetSizeLimits(minw,30000,200,30000);
if (win->Bounds().Width() < minw)
win->ResizeTo(minw,win->Bounds().Height());
win->fScanThread = -1;
win->Unlock();
return 0;
}示例2: switch
//.........这里部分代码省略.........
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( ++endPos < len);
if (mods & B_SHIFT_KEY) {
Select( startPos, wordEnd);
} else
Select( wordEnd, wordEnd);
}
ScrollToSelection();
} else
inherited::KeyDown( bytes, numBytes);
break;
}
case B_LEFT_ARROW: {
// implement word-wise movement:
int32 mods = Window()->CurrentMessage()->FindInt32("modifiers");
if (mods & (B_LEFT_CONTROL_KEY | B_RIGHT_OPTION_KEY)) {
int32 startPos, endPos;
GetSelection( &startPos, &endPos);
if (!startPos)
break;
if (startPos==endPos && (mods & B_SHIFT_KEY))
m_selection_start=B_LEFT_ARROW;
int32 wordStart, wordEnd;
if (mods & B_SHIFT_KEY && m_selection_start==B_RIGHT_ARROW) {
--endPos;
do {
FindWord( endPos, &wordStart, &wordEnd);
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( --endPos > 0);
Select( startPos, MAX( startPos, wordStart));
} else {
--startPos;
do {
FindWord( startPos, &wordStart, &wordEnd);
if (wordEnd > wordStart+1)
break;
if (wordEnd == wordStart+1 && ByteAt( wordStart)!=' ')
break;
} while( --startPos > 0);
if (mods & B_SHIFT_KEY)
Select( wordStart, endPos);
else
Select( wordStart, wordStart);
}
ScrollToSelection();
} else
inherited::KeyDown( bytes, numBytes);
break;
}
default:
inherited::KeyDown( bytes, numBytes);
break;
}
} else if ( numBytes == 1 ) {
// in read-only mode, we use cursor-keys to move scrollbar, and
// we remap HOME / END to the vertical scrollbar (not the horizontal,
// which is default).
switch( bytes[0]) {
case B_PAGE_UP:
case B_PAGE_DOWN:
case B_UP_ARROW:
case B_DOWN_ARROW:
case B_HOME:
case B_END: {
// move vertical scrollbar:
float min, max, smallStep, bigStep, value;
BScrollBar* bar = ScrollBar( B_VERTICAL);
if (!bar) return;
bar->GetRange( &min, &max);
bar->GetSteps( &smallStep, &bigStep);
value = bar->Value();
if (bytes[0] == B_UP_ARROW) {
value = MAX( value-smallStep, min);
} else if (bytes[0] == B_DOWN_ARROW) {
value = MIN( value+smallStep, max);
} else if (bytes[0] == B_PAGE_UP) {
value = MAX( value-bigStep, min);
} else if (bytes[0] == B_PAGE_DOWN) {
value = MIN( value+bigStep, max);
} else if (bytes[0] == B_HOME) {
value = min;
} else if (bytes[0] == B_END) {
value = max;
}
bar->SetValue( value);
break;
}
default:
BTextView::KeyDown( bytes, numBytes);
break;
}
} else
inherited::KeyDown( bytes, numBytes);
}示例3: BFilePanel
// SavePanel class
SavePanel::SavePanel(const char* name,
BMessenger* target,
entry_ref* startDirectory,
uint32 nodeFlavors,
bool allowMultipleSelection,
BMessage* message,
BRefFilter* filter,
bool modal,
bool hideWhenDone)
: BFilePanel(B_SAVE_PANEL, target, startDirectory,
nodeFlavors, allowMultipleSelection,
message, filter, modal, hideWhenDone),
BHandler(name),
fConfigWindow(NULL),
fFormatM(NULL),
fExportMode(EXPORT_MODE_ICON_RDEF)
{
BWindow* window = Window();
if (!window || !window->Lock())
return;
window->SetTitle(B_TRANSLATE("Save image"));
// add this instance as BHandler to the window's looper
window->AddHandler(this);
// find a couple of important views and mess with their layout
BView* background = Window()->ChildAt(0);
BButton* cancel = dynamic_cast<BButton*>(background->FindView("cancel button"));
BView* textview = background->FindView("text view");
BScrollBar* hscrollbar = dynamic_cast<BScrollBar*>(background->FindView("HScrollBar"));
if (!background || !cancel || !textview || !hscrollbar) {
printf("SavePanel::SavePanel() - couldn't find necessary controls.\n");
return;
}
_BuildMenu();
BRect rect = textview->Frame();
rect.top = cancel->Frame().top;
font_height fh;
be_plain_font->GetHeight(&fh);
rect.bottom = rect.top + fh.ascent + fh.descent + 5.0;
fFormatMF = new BMenuField(rect, "format popup", B_TRANSLATE("Format"),
fFormatM, true,
B_FOLLOW_LEFT | B_FOLLOW_BOTTOM,
B_WILL_DRAW | B_NAVIGABLE);
fFormatMF->SetDivider(be_plain_font->StringWidth(
B_TRANSLATE("Format")) + 7);
fFormatMF->MenuBar()->ResizeToPreferred();
fFormatMF->ResizeToPreferred();
float height = fFormatMF->Bounds().Height() + 8.0;
// find all the views that are in the way and
// move up them up the height of the menu field
BView *poseview = background->FindView("PoseView");
if (poseview) poseview->ResizeBy(0, -height);
BButton *insert = (BButton *)background->FindView("default button");
if (hscrollbar) hscrollbar->MoveBy(0, -height);
BScrollBar *vscrollbar = (BScrollBar *)background->FindView("VScrollBar");
if (vscrollbar) vscrollbar->ResizeBy(0, -height);
BView *countvw = (BView *)background->FindView("CountVw");
if (countvw) countvw->MoveBy(0, -height);
textview->MoveBy(0, -height);
#if HAIKU_TARGET_PLATFORM_DANO
fFormatMF->MoveTo(textview->Frame().left, fFormatMF->Frame().top + 2);
#else
fFormatMF->MoveTo(textview->Frame().left, fFormatMF->Frame().top);
#endif
background->AddChild(fFormatMF);
// Build the "Settings" button relative to the format menu
rect = cancel->Frame();
rect.OffsetTo(fFormatMF->Frame().right + 5.0, rect.top);
fSettingsB = new BButton(rect, "settings",
B_TRANSLATE("Settings"B_UTF8_ELLIPSIS),
new BMessage(MSG_SETTINGS),
B_FOLLOW_LEFT | B_FOLLOW_BOTTOM,
B_WILL_DRAW | B_NAVIGABLE);
fSettingsB->ResizeToPreferred();
background->AddChild(fSettingsB);
fSettingsB->SetTarget(this);
textview->ResizeTo(fSettingsB->Frame().right - fFormatMF->Frame().left,
textview->Frame().Height());
// Make sure the smallest window won't draw the "Settings" button over anything else
float minWindowWidth = textview->Bounds().Width()
+ cancel->Bounds().Width()
+ (insert ? insert->Bounds().Width() : 0.0)
+ 90;
Window()->SetSizeLimits(minWindowWidth, 10000, 250, 10000);
if (Window()->Bounds().IntegerWidth() + 1 < minWindowWidth)
Window()->ResizeTo(minWindowWidth, Window()->Bounds().Height());
//.........这里部分代码省略.........
示例4: DWindow
//.........这里部分代码省略.........
r = label->Frame();
r.OffsetBy(0,r.Height() + 5.0);
// We create a button now so that the list expands to fill the entire window
// while leaving space for the two buttons at the bottom. Note that we do not
// actually add the button to the window until later to preserve proper
// keyboard navigation order
BButton *add = new BButton(BRect(0,0,1,1),"addbutton",TR("Add…"),
new BMessage(M_SHOW_ADD_PATH),
B_FOLLOW_LEFT | B_FOLLOW_BOTTOM);
add->ResizeToPreferred();
add->MoveTo(5,fGeneralView->Bounds().bottom - 10.0 - add->Frame().Height());
r.right = bounds.right - 10.0 - B_V_SCROLL_BAR_WIDTH;
r.bottom = add->Frame().top - 10.0 - B_H_SCROLL_BAR_HEIGHT;
fIncludeList = new IncludeList(r,fProject->GetPath().GetFolder());
BScrollView *scrollView = new BScrollView("scrollview",fIncludeList,
B_FOLLOW_ALL,0, true, true);
scrollView->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
fGeneralView->AddChild(scrollView);
float width = 0.0;
for (int32 i = 0; i < fProject->CountLocalIncludes(); i++)
{
BStringItem *item = new BStringItem(fProject->LocalIncludeAt(i).Relative().String());
float strwidth = fIncludeList->StringWidth(item->Text());
width = MAX(width, strwidth);
fIncludeList->AddItem(item);
}
if (width > fIncludeList->Bounds().Width())
{
BScrollBar *hbar = scrollView->ScrollBar(B_HORIZONTAL);
hbar->SetRange(0.0, width - fIncludeList->Bounds().Width());
}
SetToolTip(fIncludeList,TR("The folders you want Paladin to search for header files"));
fGeneralView->AddChild(add);
BButton *remove = new BButton(BRect(0,0,1,1),"removebutton",TR("Remove"),
new BMessage(M_REMOVE_PATH),
B_FOLLOW_LEFT | B_FOLLOW_BOTTOM);
remove->ResizeToPreferred();
remove->MoveTo(add->Frame().right + 10.0, add->Frame().top);
fGeneralView->AddChild(remove);
r = bounds;
fBuildView = new BView(bounds.OffsetByCopy(5,5),TR("Build"),B_FOLLOW_ALL,B_WILL_DRAW);
fBuildView->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
fTabView->AddTab(fBuildView);
menu = new BMenu(TR("Optimization"));
menu->AddItem(new BMenuItem(TR("None"),new BMessage(M_SET_OP_VALUE)));
menu->AddItem(new BMenuItem(TR("Some"),new BMessage(M_SET_OP_VALUE)));
menu->AddItem(new BMenuItem(TR("More"),new BMessage(M_SET_OP_VALUE)));
menu->AddItem(new BMenuItem(TR("Full"),new BMessage(M_SET_OP_VALUE)));
r.right = (bounds.right - 5.0) / 2.0;
r.bottom = r.top + 25;
fOpField = new BMenuField(r,"optimize",TR("Optimize"),menu);
fBuildView->AddChild(fOpField);
fOpField->SetDivider(fOpField->StringWidth(TR("Optimize")) + 5.0);
SetToolTip(fOpField,TR("Compiler optimization level. Disabled when debugging info is checked."));示例5: Bounds
void ColumnListView::UpdateScrollBars()
{
if(fScrollView)
{
//Figure out the bounds and scroll if necessary
BRect ViewBounds;
float DeltaX,DeltaY;
do
{
ViewBounds = Bounds();
//Figure out the width of the page rectangle
fPageWidth = fDataWidth;
fPageHeight = fDataHeight;
//If view runs past the end, make more visible at the beginning
DeltaX = 0.0;
if(ViewBounds.right > fDataWidth && ViewBounds.left > 0)
{
DeltaX = ViewBounds.right-fDataWidth;
if(DeltaX > ViewBounds.left)
DeltaX = ViewBounds.left;
}
DeltaY = 0.0;
if(ViewBounds.bottom > fDataHeight && ViewBounds.top > 0)
{
DeltaY = ViewBounds.bottom-fDataHeight;
if(DeltaY > ViewBounds.top)
DeltaY = ViewBounds.top;
}
if(DeltaX != 0.0 || DeltaY != 0.0)
{
ScrollTo(BPoint(ViewBounds.left-DeltaX,ViewBounds.top-DeltaY));
ViewBounds = Bounds();
}
if(ViewBounds.right-ViewBounds.left > fDataWidth)
fPageWidth = ViewBounds.right;
if(ViewBounds.bottom-ViewBounds.top > fDataHeight)
fPageHeight = ViewBounds.bottom;
}while(DeltaX != 0.0 || DeltaY != 0.0);
//Figure out the ratio of the bounds rectangle width or height to the page rectangle width or height
float WidthProp = (ViewBounds.right-ViewBounds.left)/fPageWidth;
float HeightProp = (ViewBounds.bottom-ViewBounds.top)/fPageHeight;
BScrollBar* HScrollBar = fScrollView->ScrollBar(B_HORIZONTAL);
BScrollBar* VScrollBar = fScrollView->ScrollBar(B_VERTICAL);
//Set the scroll bar ranges and proportions. If the whole document is visible, inactivate the
//slider
if(HScrollBar)
{
if(WidthProp >= 1.0 && ViewBounds.left == 0.0)
HScrollBar->SetRange(0.0,0.0);
else
HScrollBar->SetRange(0.0,fPageWidth-(ViewBounds.right-ViewBounds.left));
HScrollBar->SetProportion(WidthProp);
//Set the step values
HScrollBar->SetSteps(20.0,ViewBounds.right-ViewBounds.left);
}
if(VScrollBar)
{
if(HeightProp >= 1.0 && ViewBounds.top == 0.0)
{
VScrollBar->SetRange(0.0,0.0);
if(fFillerView)
fFillerView->SetViewColor(BeInactiveControlGrey);
}
else
{
VScrollBar->SetRange(0.0,fPageHeight-(ViewBounds.bottom-ViewBounds.top));
if(fFillerView)
fFillerView->SetViewColor(BeBackgroundGrey);
}
VScrollBar->SetProportion(HeightProp);
}
}
}示例6: switch
void ChatWindow::MessageReceived( BMessage* aMessage ) {
switch( aMessage->what ) {
case SHOW_MESSAGE:
{
const char *msg;
aMessage->FindString( "msg", &msg );
time_t _now = time( NULL );
struct tm *now = localtime( &_now );
BString *str = NULL;
BString *str2 = NULL;
char *string = NULL;
Person *person = NULL;
for( int i = 0; i < iWindow->GetProfile()->GetUserlist()->GetList()->CountItems(); i++ ) {
person = ( Person* ) iWindow->GetProfile()->GetUserlist()->GetList()->ItemAt( i );
if( iWho == person->GetUIN() ) {
str = new BString();
str->SetTo( person->GetDisplay() );
break;
}
}
if( !str ) {
str = new BString();
*str << ( int32 ) iWho;
}
BFont *font = new BFont( be_plain_font );
font->SetSize( 16.0 );
font->SetEncoding( B_ISO_8859_2 );
rgb_color yellow = { 255, 255, 0, 0 };
rgb_color red = { 255, 0, 0, 0 };
rgb_color white = { 255, 255, 255, 0 };
string = ( char* ) calloc( strlen( "[00:00] " ), 1 );
sprintf( string, "[%02d:%02d] ", now->tm_hour, now->tm_min);
str2 = new BString();
str2->SetTo( string );
free( string );
iChat->SetFontAndColor( iChat->TextLength(), iChat->TextLength() + str2->Length(), font, B_FONT_ALL, &yellow );
iChat->Insert( iChat->TextLength(), str2->String(), str2->Length() );
str->Append( ": " );
iChat->SetFontAndColor( iChat->TextLength(), iChat->TextLength() + str->Length(), font, B_FONT_ALL, &red );
iChat->Insert( iChat->TextLength(), str->String(), str->Length() );
str2->SetTo( msg );
str2->Append( "\n" );
iChat->SetFontAndColor( iChat->TextLength(), iChat->TextLength() + str2->Length(), font, B_FONT_ALL, &white );
iChat->Insert( iChat->TextLength(), str2->String(), str2->Length() );
BScrollBar * scrollBar = iScrollView->ScrollBar( B_VERTICAL );
if( scrollBar->LockLooper() ) {
float max,min;
scrollBar->GetRange( &min, &max );
scrollBar->SetValue( max );
scrollBar->UnlockLooper();
}
delete str;
delete str2;
break;
}
case BEGG_SEND:
{
if( iSayControl->LockLooper()) {
if( !(*iSayControl->Text() ) ) {
/* nothing to send */
iSayControl->UnlockLooper();
break;
}
/* first we add message into chat window */
time_t _now = time( NULL );
struct tm * now = localtime( &_now );
BString str;
BString str2;
char *string;
// int id = iNetwork->GetIdent();
BFont *font = new BFont( be_plain_font );
font->SetSize( 16.0 );
font->SetEncoding( B_ISO_8859_2 );
rgb_color yellow = { 255, 255, 0, 0 };
rgb_color green = { 0, 255, 0, 0 };
rgb_color white = { 255, 255, 255, 0 };
string = ( char* ) calloc( strlen( "[00:00] " ), 1 );
sprintf( string, "[%02d:%02d] ", now->tm_hour, now->tm_min );
str2.SetTo( string );
free( string );
iChat->SetFontAndColor( iChat->TextLength(), iChat->TextLength() + str2.Length(), font, B_FONT_ALL, &yellow );
iChat->Insert( iChat->TextLength(), str2.String(), str2.Length() );
str.SetTo( iWindow->GetProfile()->GetProfileName() );
str.Append( ": " );
iChat->SetFontAndColor( iChat->TextLength(), iChat->TextLength() + str.Length(), font, B_FONT_ALL, &green );
iChat->Insert( iChat->TextLength(), str.String(), str.Length() );
str2.SetTo( iSayControl->Text() );
str2.Append( "\n" );
iChat->SetFontAndColor( iChat->TextLength(), iChat->TextLength() + str2.Length(), font, B_FONT_ALL, &white );
iChat->Insert( iChat->TextLength(), str2.String(), str2.Length() );
/* scroll down */
BScrollBar * scrollBar = iScrollView->ScrollBar( B_VERTICAL );
if( scrollBar->LockLooper() ) {
float max,min;
//.........这里部分代码省略.........