136 lines
2.1 KiB
C++
136 lines
2.1 KiB
C++
/*
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* Copyright 2009-2010, Pier Luigi Fiorini. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Pier Luigi Fiorini, pierluigi.fiorini@gmail.com
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*/
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#include <new>
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#include <Bitmap.h>
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#include <LayoutUtils.h>
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#include <TranslationUtils.h>
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#include "BitmapView.h"
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const float kMinWidth = 32.0f;
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const float kMinHeight = 32.0f;
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BitmapView::BitmapView(const char* name, uint32 flags)
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:
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BView(name, flags | B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE),
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fBitmap(NULL),
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fWidth(kMinWidth),
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fHeight(kMinHeight)
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{
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}
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BitmapView::~BitmapView()
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{
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delete fBitmap;
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fBitmap = NULL;
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}
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void
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BitmapView::AttachedToWindow()
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{
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// Set view color to parent's view color
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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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}
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status_t
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BitmapView::InitCheck()
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{
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if (fBitmap != NULL)
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return B_OK;
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return B_ERROR;
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}
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BBitmap*
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BitmapView::Bitmap() const
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{
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return fBitmap;
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}
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status_t
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BitmapView::SetBitmap(const char* filename)
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{
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delete fBitmap;
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fBitmap = BTranslationUtils::GetBitmap(filename);
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if (fBitmap == NULL)
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return B_ERROR;
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return B_OK;
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}
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status_t
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BitmapView::SetBitmap(const BBitmap* bitmap)
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{
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delete fBitmap;
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fBitmap = NULL;
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if (bitmap != NULL) {
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fBitmap = new(std::nothrow) BBitmap(bitmap);
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if (fBitmap == NULL)
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return B_NO_MEMORY;
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if (fBitmap->InitCheck() != B_OK)
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return fBitmap->InitCheck();
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fWidth = fBitmap->Bounds().Width();
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fHeight = fBitmap->Bounds().Height();
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Invalidate();
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}
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return B_OK;
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}
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BSize
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BitmapView::MinSize()
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{
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return BLayoutUtils::ComposeSize(ExplicitMinSize(),
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BSize(kMinWidth, kMinHeight));
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}
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BSize
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BitmapView::MaxSize()
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{
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return BLayoutUtils::ComposeSize(ExplicitMaxSize(),
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BSize(fWidth, fHeight));
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}
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BSize
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BitmapView::PreferredSize()
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{
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return BLayoutUtils::ComposeSize(ExplicitPreferredSize(),
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BSize(fWidth, fHeight));
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}
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void
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BitmapView::Draw(BRect frame)
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{
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if (fBitmap == NULL)
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return;
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SetDrawingMode(B_OP_ALPHA);
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SetBlendingMode(B_PIXEL_ALPHA, B_ALPHA_OVERLAY);
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DrawBitmap(fBitmap, fBitmap->Bounds(),
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Bounds(), B_FILTER_BITMAP_BILINEAR);
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}
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