// constructor
VolumeSlider::VolumeSlider(BRect frame, const char* name,
int32 minValue, int32 maxValue,
BMessage* message, BHandler* target)
: BControl(frame, name, NULL, message, B_FOLLOW_LEFT | B_FOLLOW_TOP,
B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE),
fLeftSideBits(NULL),
fRightSideBits(NULL),
fKnobBits(NULL),
fTracking(false),
fMuted(false),
fMinValue(minValue),
fMaxValue(maxValue)
{
SetTarget(target);
// create bitmaps
BRect r(0.0, 0.0,
kVolumeSliderBitmapWidth - 1, kVolumeSliderBitmapHeight - 1);
fLeftSideBits = new BBitmap(r, B_CMAP8);
fRightSideBits = new BBitmap(r, B_CMAP8);
r.Set(0.0, 0.0,
kVolumeSliderKnobWidth - 1, kVolumeSliderKnobHeight - 1);
fKnobBits = new BBitmap(r, B_CMAP8);
_MakeBitmaps();
}
status_t
BIconButton::SetIcon(const BMimeType* fileType, bool small)
{
status_t status = fileType ? fileType->InitCheck() : B_BAD_VALUE;
if (status >= B_OK) {
BBitmap* mimeBitmap = new(std::nothrow) BBitmap(BRect(0.0, 0.0, 15.0,
15.0), B_CMAP8);
if (mimeBitmap && mimeBitmap->IsValid()) {
status = fileType->GetIcon(mimeBitmap, small ? B_MINI_ICON
: B_LARGE_ICON);
if (status >= B_OK) {
if (BBitmap* bitmap = _ConvertToRGB32(mimeBitmap)) {
status = _MakeBitmaps(bitmap);
delete bitmap;
} else {
printf("BIconButton::SetIcon() - B_RGB32 bitmap is not "
"valid\n");
}
} else {
printf("BIconButton::SetIcon() - fileType->GetIcon() failed: "
"%s\n", strerror(status));
}
} else
printf("BIconButton::SetIcon() - B_CMAP8 bitmap is not valid\n");
delete mimeBitmap;
} else {
printf("BIconButton::SetIcon() - fileType is not valid: %s\n",
strerror(status));
}
return status;
}
status_t
BIconButton::SetIcon(const BBitmap* bitmap, uint32 flags)
{
if (bitmap && bitmap->ColorSpace() == B_CMAP8) {
status_t status = bitmap->InitCheck();
if (status >= B_OK) {
if (BBitmap* rgb32Bitmap = _ConvertToRGB32(bitmap)) {
status = _MakeBitmaps(rgb32Bitmap);
delete rgb32Bitmap;
} else
status = B_NO_MEMORY;
}
return status;
} else
return _MakeBitmaps(bitmap);
}
// SetMuted
void
VolumeSlider::SetMuted(bool mute)
{
if (mute == fMuted)
return;
fMuted = mute;
_MakeBitmaps();
Invalidate();
}
// SetEnabled
void
VolumeSlider::SetEnabled(bool enable)
{
if (enable == IsEnabled())
return;
BControl::SetEnabled(enable);
_MakeBitmaps();
Invalidate();
}
status_t
BIconButton::SetIcon(const char* pathToBitmap)
{
if (pathToBitmap == NULL)
return B_BAD_VALUE;
status_t status = B_BAD_VALUE;
BBitmap* fileBitmap = NULL;
// try to load bitmap from either relative or absolute path
BEntry entry(pathToBitmap, true);
if (!entry.Exists()) {
app_info info;
status = be_app->GetAppInfo(&info);
if (status == B_OK) {
BEntry app_entry(&info.ref, true);
BPath path;
app_entry.GetPath(&path);
status = path.InitCheck();
if (status == B_OK) {
status = path.GetParent(&path);
if (status == B_OK) {
status = path.Append(pathToBitmap, true);
if (status == B_OK)
fileBitmap = BTranslationUtils::GetBitmap(path.Path());
else {
printf("BIconButton::SetIcon() - path.Append() failed: "
"%s\n", strerror(status));
}
} else {
printf("BIconButton::SetIcon() - path.GetParent() failed: "
"%s\n", strerror(status));
}
} else {
printf("BIconButton::SetIcon() - path.InitCheck() failed: "
"%s\n", strerror(status));
}
} else {
printf("BIconButton::SetIcon() - be_app->GetAppInfo() failed: "
"%s\n", strerror(status));
}
} else
fileBitmap = BTranslationUtils::GetBitmap(pathToBitmap);
if (fileBitmap) {
status = _MakeBitmaps(fileBitmap);
delete fileBitmap;
} else
status = B_ERROR;
return status;
}
status_t
BIconButton::SetIcon(const unsigned char* bitsFromQuickRes,
uint32 width, uint32 height, color_space format, bool convertToBW)
{
status_t status = B_BAD_VALUE;
if (bitsFromQuickRes && width > 0 && height > 0) {
BBitmap* quickResBitmap = new(std::nothrow) BBitmap(BRect(0.0, 0.0,
width - 1.0, height - 1.0), format);
status = quickResBitmap ? quickResBitmap->InitCheck() : B_ERROR;
if (status >= B_OK) {
// It doesn't look right to copy BitsLength() bytes, but bitmaps
// exported from QuickRes still contain their padding, so it is
// all right.
memcpy(quickResBitmap->Bits(), bitsFromQuickRes,
quickResBitmap->BitsLength());
if (format != B_RGB32 && format != B_RGBA32
&& format != B_RGB32_BIG && format != B_RGBA32_BIG) {
// colorspace needs conversion
BBitmap* bitmap = new(std::nothrow) BBitmap(
quickResBitmap->Bounds(), B_RGB32, true);
if (bitmap && bitmap->IsValid()) {
BView* helper = new BView(bitmap->Bounds(), "helper",
B_FOLLOW_NONE, B_WILL_DRAW);
if (bitmap->Lock()) {
bitmap->AddChild(helper);
helper->SetHighColor(ui_color(B_PANEL_BACKGROUND_COLOR));
helper->FillRect(helper->Bounds());
helper->SetDrawingMode(B_OP_OVER);
helper->DrawBitmap(quickResBitmap, BPoint(0.0, 0.0));
helper->Sync();
bitmap->Unlock();
}
status = _MakeBitmaps(bitmap);
} else {
printf("BIconButton::SetIcon() - B_RGB32 bitmap is not "
"valid\n");
}
delete bitmap;
} else {
// native colorspace (32 bits)
if (convertToBW) {
// convert to gray scale icon
uint8* bits = (uint8*)quickResBitmap->Bits();
uint32 bpr = quickResBitmap->BytesPerRow();
for (uint32 y = 0; y < height; y++) {
uint8* handle = bits;
uint8 gray;
for (uint32 x = 0; x < width; x++) {
gray = uint8((116 * handle[0] + 600 * handle[1]
+ 308 * handle[2]) / 1024);
handle[0] = gray;
handle[1] = gray;
handle[2] = gray;
handle += 4;
}
bits += bpr;
}
}
status = _MakeBitmaps(quickResBitmap);
}
} else {
printf("BIconButton::SetIcon() - error allocating bitmap: "
"%s\n", strerror(status));
}
delete quickResBitmap;
}
return status;
}
status_t
BIcon::SetTo(const BBitmap* bitmap, uint32 flags)
{
if (!bitmap->IsValid())
return B_BAD_VALUE;
DeleteBitmaps();
// check the color space
bool hasAlpha = false;
bool canUseForMakeBitmaps = false;
switch (bitmap->ColorSpace()) {
case B_RGBA32:
case B_RGBA32_BIG:
hasAlpha = true;
// fall through
case B_RGB32:
case B_RGB32_BIG:
canUseForMakeBitmaps = true;
break;
case B_UVLA32:
case B_LABA32:
case B_HSIA32:
case B_HSVA32:
case B_HLSA32:
case B_CMYA32:
case B_RGBA15:
case B_RGBA15_BIG:
case B_CMAP8:
hasAlpha = true;
break;
default:
break;
}
BBitmap* trimmedBitmap = NULL;
// trim the bitmap, if requested and the bitmap actually has alpha
status_t error;
if ((flags & (B_TRIM_ICON_BITMAP | B_TRIM_ICON_BITMAP_KEEP_ASPECT)) != 0
&& hasAlpha) {
if (bitmap->ColorSpace() == B_RGBA32) {
error = _TrimBitmap(bitmap,
(flags & B_TRIM_ICON_BITMAP_KEEP_ASPECT) != 0, trimmedBitmap);
} else {
BBitmap* rgb32Bitmap = _ConvertToRGB32(bitmap, true);
if (rgb32Bitmap != NULL) {
error = _TrimBitmap(rgb32Bitmap,
(flags & B_TRIM_ICON_BITMAP_KEEP_ASPECT) != 0,
trimmedBitmap);
delete rgb32Bitmap;
} else
error = B_NO_MEMORY;
}
if (error != B_OK)
return error;
bitmap = trimmedBitmap;
canUseForMakeBitmaps = true;
}
// create the bitmaps
if (canUseForMakeBitmaps) {
error = _MakeBitmaps(bitmap, flags);
} else {
if (BBitmap* rgb32Bitmap = _ConvertToRGB32(bitmap, true)) {
error = _MakeBitmaps(rgb32Bitmap, flags);
delete rgb32Bitmap;
} else
error = B_NO_MEMORY;
}
delete trimmedBitmap;
return error;
}
