diff options
Diffstat (limited to 'kolourpaint/views/kpunzoomedthumbnailview.cpp')
| -rw-r--r-- | kolourpaint/views/kpunzoomedthumbnailview.cpp | 212 |
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> |