1 /*
2 * Copyright 2006, The Android Open Source Project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "Node.h"
28 #include "PlatformGraphicsContext.h"
29 #include "SkCanvas.h"
30
31 namespace WebCore {
32
PlatformGraphicsContext(SkCanvas * canvas,WTF::Vector<Container> * buttons)33 PlatformGraphicsContext::PlatformGraphicsContext(SkCanvas* canvas, WTF::Vector<Container>* buttons)
34 : mCanvas(canvas), m_deleteCanvas(false), m_buttons(buttons)
35 {
36 }
37
PlatformGraphicsContext()38 PlatformGraphicsContext::PlatformGraphicsContext()
39 : mCanvas(new SkCanvas), m_deleteCanvas(true), m_buttons(0)
40 {
41 }
42
~PlatformGraphicsContext()43 PlatformGraphicsContext::~PlatformGraphicsContext()
44 {
45 if (m_deleteCanvas) {
46 // printf("-------------------- deleting offscreen canvas\n");
47 delete mCanvas;
48 }
49 }
50
storeButtonInfo(Node * node,const IntRect & r)51 void PlatformGraphicsContext::storeButtonInfo(Node* node, const IntRect& r)
52 {
53 if (m_buttons == NULL)
54 return;
55 // Check to see if we already have a Container for this node. If so, update
56 // it with the new rectangle and make the new recording canvas reference
57 // its picture.
58 Container* end = m_buttons->end();
59 for (Container* ptr = m_buttons->begin(); ptr != end; ptr++) {
60 if (ptr->matches(node)) {
61 mCanvas->drawPicture(*(ptr->picture()));
62 ptr->setRect(r);
63 return;
64 }
65 }
66 // We did not have a Container representing this node, so create a new one.
67 Container container(node, r);
68 // Place a reference to our subpicture in the Picture.
69 mCanvas->drawPicture(*(container.picture()));
70 // Keep track of the information about the button.
71 m_buttons->append(container);
72 }
73
74 } // WebCore
75