WebCore/platform/qt/ScrollViewCanvasQt.cpp

   1 /*
   2  * Copyright (C) 2006 Zack Rusin <zack@kde.org>
   3  * Copyright (C) 2006 George Staikos <staikos@kde.org>
   4  * Copyright (C) 2006 Dirk Mueller <mueller@kde.org>
   5  * Copyright (C) 2006 Simon Hausmann <hausmann@kde.org>
   6  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
   7  *
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  20  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  27  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include "config.h"
  33
  34 #include "ScrollViewCanvasQt.h"
  35 #include "ScrollViewCanvasQt.moc"
  36
  37 #include "FrameQt.h"
  38 #include "FrameView.h"
  39 #include "TypingCommand.h"
  40 #include "KeyboardCodes.h"
  41 #include "GraphicsContext.h"
  42 #include "SelectionController.h"
  43 #include "PlatformMouseEvent.h"
  44 #include "PlatformKeyboardEvent.h"
  45
  46 #include <QPainter>
  47 #include <QPaintEvent>
  48 #include <QMouseEvent>
  49
  50 namespace WebCore {
  51
  52 ScrollViewCanvasQt::ScrollViewCanvasQt(ScrollView* frameView, QWidget* parent)
  53     : QWidget(parent)
  54     , m_frameView(frameView)
  55 {
  56     setMouseTracking(true);
  57     setFocusPolicy(Qt::StrongFocus);
  58 }
  59
  60 void ScrollViewCanvasQt::paintEvent(QPaintEvent* ev)
  61 {
  62     FrameView* fv = static_cast<FrameView*>(m_frameView);
  63     if (!fv || !fv->frame())
  64         return;
  65
  66     QRect clip = ev->rect();
  67
  68     QPainter p(this);
  69     GraphicsContext ctx(&p);
  70
  71     fv->layout();
  72     fv->frame()->paint(&ctx, clip);
  73 }
  74
  75 QSize ScrollViewCanvasQt::sizeHint() const
  76 {
  77     return QSize(1024, 768);
  78 }
  79
  80 void ScrollViewCanvasQt::mouseMoveEvent(QMouseEvent* ev)
  81 {
  82     FrameView* fv = static_cast<FrameView*>(m_frameView);
  83     if (!fv || !fv->frame())
  84         return;
  85
  86     fv->handleMouseMoveEvent(PlatformMouseEvent(ev, 0));
  87 }
  88
  89 void ScrollViewCanvasQt::mousePressEvent(QMouseEvent* ev)
  90 {
  91     FrameView* fv = static_cast<FrameView*>(m_frameView);
  92     if (!fv || !fv->frame())
  93         return;
  94
  95     fv->handleMousePressEvent(PlatformMouseEvent(ev, 1));
  96 }
  97
  98 void ScrollViewCanvasQt::mouseReleaseEvent(QMouseEvent* ev)
  99 {
 100     FrameView* fv = static_cast<FrameView*>(m_frameView);
 101     if (!fv || !fv->frame())
 102         return;
 103
 104     fv->handleMouseReleaseEvent(PlatformMouseEvent(ev, 0));
 105 }
 106
 107 void ScrollViewCanvasQt::keyPressEvent(QKeyEvent* ev)
 108 {
 109     handleKeyEvent(ev, false);
 110 }
 111
 112 void ScrollViewCanvasQt::keyReleaseEvent(QKeyEvent* ev)
 113 {
 114     handleKeyEvent(ev, true);
 115 }
 116
 117 void ScrollViewCanvasQt::handleKeyEvent(QKeyEvent* ev, bool isKeyUp)
 118 {
 119     PlatformKeyboardEvent kevent(ev, isKeyUp);
 120
 121     FrameView* fv = static_cast<FrameView*>(m_frameView);
 122     FrameQt* frame = (fv ? static_cast<FrameQt*>(fv->frame()) : 0);
 123     if (!frame)
 124         return;
 125
 126     bool handled = frame->keyEvent(kevent);
 127
 128     if (!handled && !kevent.isKeyUp()) {
 129         Node* start = frame->selectionController()->start().node();
 130         if (start && start->isContentEditable()) {
 131             switch(kevent.WindowsKeyCode()) {
 132                 case VK_BACK:
 133                     TypingCommand::deleteKeyPressed(frame->document());
 134                     break;
 135                 case VK_DELETE:
 136                     TypingCommand::forwardDeleteKeyPressed(frame->document());
 137                     break;
 138                 case VK_LEFT:
 139                     frame->selectionController()->modify(SelectionController::MOVE, SelectionController::LEFT, CharacterGranularity);
 140                     break;
 141                 case VK_RIGHT:
 142                     frame->selectionController()->modify(SelectionController::MOVE, SelectionController::RIGHT, CharacterGranularity);
 143                     break;
 144                 case VK_UP:
 145                     frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, ParagraphGranularity);
 146                     break;
 147                 case VK_DOWN:
 148                     frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, ParagraphGranularity);
 149                     break;
 150                 default:
 151                     TypingCommand::insertText(frame->document(), kevent.text(), false);
 152
 153             }
 154
 155             handled = true;
 156         }
 157
 158         // FIXME: doScroll stuff()!
 159     }
 160 }
 161
 162 }
 163
 164 // vim: ts=4 sw=4 et