mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-24 23:39:51 +03:00
17be8cf216
The netsurf core is driven from numerous operation tables most of which are now set through a common netsurf_register() interface. The font and plotting interfaces are currently separate and unlike all the other operation tables are modified for differing contexts. This change moves the font operations alongside all the other operations table and remove unnecessary interaction with the renderers font internals. Further this also removes the need for css internals to be visible in frontends.
169 lines
4.0 KiB
C++
169 lines
4.0 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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nsurl *url)
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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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/* register the thumbnail with the URL */
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if (url)
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urldb_set_thumbnail(url, bitmap);
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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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