Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 212 insertions, 0 deletions

diff --git a/kolourpaint/views/kpunzoomedthumbnailview.cpp b/kolourpaint/views/kpunzoomedthumbnailview.cpp
new file mode 100644
index 00000000..09d5aed1
--- /dev/null
+++ b/kolourpaint/views/kpunzoomedthumbnailview.cpp
@@ -0,0 +1,212 @@
+
+/*
+   Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+   IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+   THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#define DEBUG_KP_UNZOOMED_THUMBNAIL_VIEW 0
+
+
+#include <kpunzoomedthumbnailview.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+
+#include <kpdocument.h>
+#include <kpviewmanager.h>
+#include <kpviewscrollablecontainer.h>
+
+
+struct kpUnzoomedThumbnailViewPrivate
+{
+};
+
+
+kpUnzoomedThumbnailView::kpUnzoomedThumbnailView (
+        kpDocument *document,
+        kpToolToolBar *toolToolBar,
+        kpViewManager *viewManager,
+        kpView *buddyView,
+        kpViewScrollableContainer *scrollableContainer,
+        QWidget *parent, const char *name)
+
+    : kpThumbnailView (document, toolToolBar, viewManager,
+                       buddyView,
+                       scrollableContainer,
+                       parent, name),
+      d (new kpUnzoomedThumbnailViewPrivate ())
+{
+    if (buddyViewScrollableContainer ())
+    {
+        connect (buddyViewScrollableContainer (),
+                SIGNAL (contentsMovingSoon (int, int)),
+                this,
+                SLOT (adjustToEnvironment ()));
+    }
+
+    // Call to virtual function - this is why the class is sealed
+    adjustToEnvironment ();
+}
+
+
+kpUnzoomedThumbnailView::~kpUnzoomedThumbnailView ()
+{
+    delete d;
+}
+
+
+// public virtual [base kpThumbnailView]
+QString kpUnzoomedThumbnailView::caption () const
+{
+    return i18n ("Unzoomed Mode - Thumbnail");
+}
+
+
+// public slot virtual [base kpView]
+void kpUnzoomedThumbnailView::adjustToEnvironment ()
+{
+    if (!buddyView () || !buddyViewScrollableContainer () || !document ())
+        return;
+
+    const int scrollViewContentsX =
+        buddyViewScrollableContainer ()->contentsXSoon ();
+    const int scrollViewContentsY =
+        buddyViewScrollableContainer ()->contentsYSoon ();
+
+#if DEBUG_KP_UNZOOMED_THUMBNAIL_VIEW
+    kdDebug () << "kpUnzoomedThumbnailView(" << name ()
+               << ")::adjustToEnvironment("
+               << scrollViewContentsX
+               << ","
+               << scrollViewContentsY
+               << ") width=" << width ()
+               << " height=" << height ()
+               << endl;
+#endif
+
+
+#if 1
+    int x;
+    if (document ()->width () > width ())
+    {
+        x = (int) buddyView ()->transformViewToDocX (scrollViewContentsX);
+        const int rightMostAllowedX = QMAX (0, document ()->width () - width ());
+    #if DEBUG_KP_UNZOOMED_THUMBNAIL_VIEW
+        kdDebug () << "\tdocX=" << x
+                << " docWidth=" << document ()->width ()
+                << " rightMostAllowedX=" << rightMostAllowedX
+                << endl;
+    #endif
+        if (x > rightMostAllowedX)
+            x = rightMostAllowedX;
+    }
+    // Thumbnail width <= doc width
+    else
+    {
+        // Centre X (rather than flush left to be consistent with
+        //           kpZoomedThumbnailView)
+        x = -(width () - document ()->width ()) / 2;
+    }
+
+
+    int y;
+    if (document ()->height () > height ())
+    {
+        y = (int) buddyView ()->transformViewToDocY (scrollViewContentsY);
+        const int bottomMostAllowedY = QMAX (0, document ()->height () - height ());
+    #if DEBUG_KP_UNZOOMED_THUMBNAIL_VIEW
+        kdDebug () << "\tdocY=" << y
+                    << " docHeight=" << document ()->height ()
+                    << " bottomMostAllowedY=" << bottomMostAllowedY
+                    << endl;
+    #endif
+        if (y > bottomMostAllowedY)
+            y = bottomMostAllowedY;
+    }
+    // Thumbnail height <= doc height
+    else
+    {
+        // Centre Y (rather than flush top to be consistent with
+        //           kpZoomedThumbnailView)
+        y = -(height () - document ()->height ()) / 2;
+    }
+// Prefer to keep visible area centred in thumbnail instead of flushed left.
+// Gives more editing context to the left and top.
+// But feels awkward for left-to-right users.  So disabled for now.
+// Not totally tested.
+#else
+    if (!buddyViewScrollableContainer ())
+        return;
+
+    QRect docRect = buddyView ()->transformViewToDoc (
+        QRect (buddyViewScrollableContainer ()->contentsXSoon (),
+               buddyViewScrollableContainer ()->contentsYSoon (),
+               QMIN (buddyView ()->width (), buddyViewScrollableContainer ()->visibleWidth ()),
+               QMIN (buddyView ()->height (), buddyViewScrollableContainer ()->visibleHeight ())));
+
+    x = docRect.x () - (width () - docRect.width ()) / 2;
+    kdDebug () << "\tnew suggest x=" << x << endl;
+    const int rightMostAllowedX = QMAX (0, document ()->width () - width ());
+    if (x < 0)
+        x = 0;
+    if (x > rightMostAllowedX)
+        x = rightMostAllowedX;
+
+    y = docRect.y () - (height () - docRect.height ()) / 2;
+    kdDebug () << "\tnew suggest y=" << y << endl;
+    const int bottomMostAllowedY = QMAX (0, document ()->height () - height ());
+    if (y < 0)
+        y = 0;
+    if (y > bottomMostAllowedY)
+        y = bottomMostAllowedY;
+#endif
+
+
+    if (viewManager ())
+    {
+        viewManager ()->setFastUpdates ();
+        viewManager ()->setQueueUpdates ();
+    }
+
+    {
+        // OPT: scrollView impl would be much, much faster
+        setOrigin (QPoint (-x, -y));
+        setMaskToCoverDocument ();
+
+        // Above might be a NOP even if e.g. doc size changed so force
+        // update
+        if (viewManager ())
+            viewManager ()->updateView (this);
+    }
+
+    if (viewManager ())
+    {
+        viewManager ()->restoreQueueUpdates ();
+        viewManager ()->restoreFastUpdates ();
+    }
+}
+
+
+#include <kpunzoomedthumbnailview.moc>