Added a simple image/icon view for the attributes.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6744 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
parent
609442f8f8
commit
7e55eac336
@ -16,10 +16,12 @@
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#include <ScrollView.h>
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#include <MenuField.h>
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#include <PopUpMenu.h>
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#include <Bitmap.h>
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#include <Alert.h>
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#include <Autolock.h>
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#include <Mime.h>
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#include <fs_attr.h>
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#include <TranslationUtils.h>
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#include <stdio.h>
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@ -121,6 +123,25 @@ class BooleanEditor : public BView {
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};
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class ImageView : public BView {
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public:
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ImageView(BRect rect, DataEditor &editor);
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virtual ~ImageView();
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virtual void AttachedToWindow();
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virtual void DetachedFromWindow();
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virtual void MessageReceived(BMessage *message);
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virtual void Draw(BRect updateRect);
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void UpdateImage();
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private:
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DataEditor &fEditor;
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BBitmap *fBitmap;
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BStringView *fDescriptionView;
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};
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//-----------------
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@ -149,6 +170,11 @@ GetTypeEditorFor(BRect rect, DataEditor &editor)
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case B_OFF_T_TYPE:
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case B_POINTER_TYPE:
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return new NumberEditor(rect, editor);
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case 'MICN':
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case 'ICON':
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case 'PNG ':
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case 'MSGG':
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return new ImageView(rect, editor);
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}
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return NULL;
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@ -880,7 +906,6 @@ BooleanEditor::UpdateMenuField()
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fEditor.Unlock();
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}
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}
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@ -924,6 +949,225 @@ BooleanEditor::MessageReceived(BMessage *message)
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// #pragma mark -
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ImageView::ImageView(BRect rect, DataEditor &editor)
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: BView(rect, "Image View", B_FOLLOW_NONE, B_WILL_DRAW),
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fEditor(editor),
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fBitmap(NULL)
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{
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if (editor.Type() == 'MICN' || editor.Type() == 'ICON')
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SetName("Icon View");
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fDescriptionView = new BStringView(Bounds(), "", "Could not read image", B_FOLLOW_NONE);
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fDescriptionView->SetAlignment(B_ALIGN_CENTER);
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AddChild(fDescriptionView);
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}
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ImageView::~ImageView()
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{
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delete fBitmap;
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}
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void
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ImageView::AttachedToWindow()
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{
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if (Parent() != NULL)
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SetViewColor(Parent()->ViewColor());
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else
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SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
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fEditor.StartWatching(this);
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UpdateImage();
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}
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void
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ImageView::DetachedFromWindow()
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{
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fEditor.StopWatching(this);
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}
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void
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ImageView::MessageReceived(BMessage *message)
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{
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switch (message->what) {
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case kMsgDataEditorUpdate:
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UpdateImage();
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break;
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default:
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BView::MessageReceived(message);
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}
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}
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void
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ImageView::Draw(BRect updateRect)
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{
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if (fBitmap != NULL)
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DrawBitmap(fBitmap, BPoint((Bounds().Width() - fBitmap->Bounds().Width()) / 2, 0));
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}
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void
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ImageView::UpdateImage()
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{
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// ToDo: add scroller if necessary?!
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BAutolock locker(fEditor);
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// we need all the data...
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size_t viewSize = fEditor.ViewSize();
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// that may need some more memory...
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if (viewSize < fEditor.FileSize())
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fEditor.SetViewSize(fEditor.FileSize());
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const char *data;
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if (fEditor.GetViewBuffer((const uint8 **)&data) != B_OK) {
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fEditor.SetViewSize(viewSize);
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return;
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}
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if (fBitmap != NULL && (fEditor.Type() == 'MICN' || fEditor.Type() == 'ICON')) {
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// optimize icon update...
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fBitmap->SetBits(data, fEditor.FileSize(), 0, B_CMAP8);
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fEditor.SetViewSize(viewSize);
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return;
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}
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delete fBitmap;
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fBitmap = NULL;
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switch (fEditor.Type()) {
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case 'MICN':
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fBitmap = new BBitmap(BRect(0, 0, 15, 15), B_CMAP8);
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if (fBitmap->InitCheck() == B_OK)
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fBitmap->SetBits(data, fEditor.FileSize(), 0, B_CMAP8);
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break;
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case 'ICON':
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fBitmap = new BBitmap(BRect(0, 0, 31, 31), B_CMAP8);
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if (fBitmap->InitCheck() == B_OK)
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fBitmap->SetBits(data, fEditor.FileSize(), 0, B_CMAP8);
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break;
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case 'PNG ':
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{
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BMemoryIO stream(data, fEditor.FileSize());
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fBitmap = BTranslationUtils::GetBitmap(&stream);
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break;
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}
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case 'MSGG':
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{
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BMessage message;
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// ToDo: this could be problematic if the data is not large
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// enough to contain the message...
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if (message.Unflatten(data) == B_OK)
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fBitmap = new BBitmap(&message);
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break;
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}
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}
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// Update the bitmap description. If no image can be displayed,
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// we will show our "unsupported" message
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if (fBitmap->InitCheck() != B_OK) {
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delete fBitmap;
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fBitmap = NULL;
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}
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if (fBitmap != NULL) {
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char buffer[256];
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const char *type;
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switch (fEditor.Type()) {
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case 'MICN':
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case 'ICON':
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type = "Icon";
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break;
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case 'PNG ':
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type = "PNG Format";
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break;
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case 'MSGG':
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type = "Flattened Bitmap";
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break;
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default:
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type = "Unknown Type";
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break;
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}
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const char *colorSpace;
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switch (fBitmap->ColorSpace()) {
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case B_GRAY1:
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case B_GRAY8:
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colorSpace = "Gray Scale";
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break;
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case B_CMAP8:
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colorSpace = "8 Bit Palette";
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break;
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case B_RGB32:
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case B_RGBA32:
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case B_RGB32_BIG:
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case B_RGBA32_BIG:
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colorSpace = "32 Bit";
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break;
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case B_RGB15:
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case B_RGBA15:
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case B_RGB15_BIG:
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case B_RGBA15_BIG:
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colorSpace = "15 Bit";
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break;
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case B_RGB16:
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case B_RGB16_BIG:
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colorSpace = "16 Bit";
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break;
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default:
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colorSpace = "Unknown Format";
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break;
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}
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snprintf(buffer, sizeof(buffer), "%s, %g x %g, %s", type,
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fBitmap->Bounds().Width() + 1, fBitmap->Bounds().Height() + 1, colorSpace);
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fDescriptionView->SetText(buffer);
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} else
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fDescriptionView->SetText("Could not read image");
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// Update the view size to match the image and its description
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fDescriptionView->ResizeToPreferred();
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BRect rect = fDescriptionView->Bounds();
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if (fBitmap != NULL) {
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BRect bounds = fBitmap->Bounds();
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rect.bottom += bounds.Height() + 5;
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float x = 0;
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if (bounds.Width() > rect.Width()) {
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rect.right = bounds.right;
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x = (bounds.Width() - rect.Width()) / 2;
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}
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// center description below the bitmap
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fDescriptionView->MoveTo(x, bounds.Height() + 5);
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}
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ResizeTo(rect.Width(), rect.Height());
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if (Parent()) {
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// center within parent view
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BRect parentBounds = Parent()->Bounds();
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MoveTo((parentBounds.Width() - rect.Width()) / 2,
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(parentBounds.Height() - rect.Height()) / 2);
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}
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Invalidate();
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// restore old view size
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fEditor.SetViewSize(viewSize);
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}
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// #pragma mark -
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AttributeWindow::AttributeWindow(BRect rect, entry_ref *ref, const char *attribute,
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const BMessage *settings)
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: ProbeWindow(rect, ref),
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@ -15,4 +15,4 @@ App DiskProbe :
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OpenWindow.cpp
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;
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LinkSharedOSLibs DiskProbe : be tracker ;
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LinkSharedOSLibs DiskProbe : be tracker translation ;
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