mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-17 01:33:16 +03:00
8a99b045bc
The content thumbnailers for each frontend were being provided the contents url. This was only ever used to call the urldb thumbnail setting API. This changes it so the single callsite that passed a valid url adds the bitmap to that url itself in desktop_history.c instead of forcing every frontend to require the urldb API. Additionally the old API could pass the url as NULL which was causing asserts where this was not an expected parameter value. Because of this this fixes bug #2286 which was also present in the monkey frontend as both called nsurl_access() on the url without the NULL check and caused an assertion.
164 lines
3.9 KiB
C++
164 lines
3.9 KiB
C++
/*
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* Copyright 2008 François Revol <mmu_man@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* Page thumbnail creation (implementation).
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*
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* Thumbnails are created by setting the current drawing contexts to a BView
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* attached to the BBitmap we are passed, and plotting the page at a small
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* scale.
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*/
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#define __STDBOOL_H__ 1
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#include <assert.h>
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#include <sys/param.h>
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#include <Bitmap.h>
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#include <View.h>
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extern "C" {
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#include "content/content.h"
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#include "content/urldb.h"
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#include "desktop/plotters.h"
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#include "desktop/browser.h"
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#include "desktop/thumbnail.h"
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#include "image/bitmap.h"
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#include "desktop/font.h"
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#include "utils/log.h"
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}
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#include "beos/scaffolding.h"
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#include "beos/plotters.h"
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#include "beos/bitmap.h"
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// Zeta PRIVATE: in libzeta for now.
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extern status_t ScaleBitmap(const BBitmap& inBitmap, BBitmap& outBitmap);
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#warning XXX do we need to set bitmap:shadow ?
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/**
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* Create a thumbnail of a page.
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*
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* \param content content structure to thumbnail
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* \param bitmap the bitmap to draw to
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* \param url the URL the thumnail belongs to, or NULL
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*/
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bool thumbnail_create(hlcache_handle *content, struct bitmap *bitmap)
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{
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BBitmap *thumbnail;
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BBitmap *small;
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BBitmap *big;
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BView *oldView;
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BView *view;
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BView *thumbView;
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float width;
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float height;
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int big_width;
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int big_height;
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int depth;
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struct redraw_context ctx;
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ctx.interactive = false;
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ctx.background_images = true;
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ctx.plot = &nsbeos_plotters;
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assert(content);
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assert(bitmap);
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thumbnail = nsbeos_bitmap_get_primary(bitmap);
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width = thumbnail->Bounds().Width();
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height = thumbnail->Bounds().Height();
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depth = 32;
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big_width = MIN(content_get_width(content), 1024);
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big_height = (int)(((big_width * height) + (width / 2)) / width);
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BRect contentRect(0, 0, big_width - 1, big_height - 1);
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big = new BBitmap(contentRect, B_BITMAP_ACCEPTS_VIEWS, B_RGB32);
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if (big->InitCheck() < B_OK) {
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delete big;
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return false;
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}
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small = new BBitmap(thumbnail->Bounds(),
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B_BITMAP_ACCEPTS_VIEWS, B_RGB32);
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if (small->InitCheck() < B_OK) {
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delete small;
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delete big;
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return false;
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}
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//XXX: _lock ?
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// backup the current gc
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oldView = nsbeos_current_gc();
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view = new BView(contentRect, "thumbnailer",
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B_FOLLOW_NONE, B_WILL_DRAW);
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big->AddChild(view);
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thumbView = new BView(small->Bounds(), "thumbnail",
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B_FOLLOW_NONE, B_WILL_DRAW);
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small->AddChild(thumbView);
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view->LockLooper();
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/* impose our view on the content... */
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nsbeos_current_gc_set(view);
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/* render the content */
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thumbnail_redraw(content, big_width, big_height, &ctx);
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view->Sync();
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view->UnlockLooper();
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// restore the current gc
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nsbeos_current_gc_set(oldView);
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// now scale it down
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//XXX: use Zeta's bilinear scaler ?
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//#ifdef B_ZETA_VERSION
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// err = ScaleBitmap(*shot, *scaledBmp);
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//#else
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thumbView->LockLooper();
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thumbView->DrawBitmap(big, big->Bounds(), small->Bounds());
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thumbView->Sync();
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thumbView->UnlockLooper();
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small->LockBits();
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thumbnail->LockBits();
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// copy it to the bitmap
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memcpy(thumbnail->Bits(), small->Bits(), thumbnail->BitsLength());
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thumbnail->UnlockBits();
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small->UnlockBits();
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bitmap_modified(bitmap);
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// cleanup
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small->RemoveChild(thumbView);
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delete thumbView;
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delete small;
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big->RemoveChild(view);
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delete view;
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delete big;
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return true;
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}
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