1 files changed, 96 insertions, 0 deletions
diff --git a/krita/plugins/tools/defaulttools/kis_tool_pan.cc b/krita/plugins/tools/defaulttools/kis_tool_pan.cc
new file mode 100644
index 00000000..56da211d
--- /dev/null
+++ b/krita/plugins/tools/defaulttools/kis_tool_pan.cc
@@ -0,0 +1,96 @@
+/*
+ *  Copyright (c) 2004 Adrian Page <adrian@pagenet.plus.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <kaction.h>
+#include <klocale.h>
+
+#include "kis_canvas_controller.h"
+#include "kis_canvas_subject.h"
+#include "kis_cursor.h"
+#include "kis_tool_pan.h"
+#include "kis_button_press_event.h"
+#include "kis_button_release_event.h"
+#include "kis_move_event.h"
+
+KisToolPan::KisToolPan()
+    : super(i18n("Pan Tool"))
+{
+    setName("tool_pan");
+    m_subject = 0;
+    m_dragging = false;
+    m_openHandCursor = KisCursor::openHandCursor();
+    m_closedHandCursor = KisCursor::closedHandCursor();
+    setCursor(m_openHandCursor);
+}
+
+KisToolPan::~KisToolPan()
+{
+}
+
+void KisToolPan::update(KisCanvasSubject *subject)
+{
+    m_subject = subject;
+    super::update(m_subject);
+}
+
+void KisToolPan::buttonPress(KisButtonPressEvent *e)
+{
+    if (m_subject && !m_dragging && e->button() == Qt::LeftButton) {
+        KisCanvasController *controller = m_subject->canvasController();
+
+        m_origScrollX = controller->horzValue();
+        m_origScrollY = controller->vertValue();
+        m_dragPos = controller->windowToView(e->pos());
+        m_dragging = true;
+        setCursor(m_closedHandCursor);
+    }
+}
+
+void KisToolPan::move(KisMoveEvent *e)
+{
+    if (m_subject && m_dragging) {
+        KisCanvasController *controller = m_subject->canvasController();
+
+        KisPoint currPos = controller->windowToView(e->pos());
+        KisPoint delta = currPos - m_dragPos;
+        controller->scrollTo(m_origScrollX - delta.floorX(), m_origScrollY - delta.floorY());
+    }
+}
+
+void KisToolPan::buttonRelease(KisButtonReleaseEvent *e)
+{
+    if (m_subject && m_dragging && e->button() == Qt::LeftButton) {
+        setCursor(m_openHandCursor);
+        m_dragging = false;
+    }
+}
+
+void KisToolPan::setup(KActionCollection *collection)
+{
+    m_action = static_cast<KRadioAction *>(collection->action(name()));
+
+    if (m_action == 0) {
+        m_action = new KRadioAction(i18n("&Pan"), "tool_pan", Qt::SHIFT+Qt::Key_H, this, SLOT(activate()), collection, name());
+        m_action->setToolTip(i18n("Pan"));
+        m_action->setExclusiveGroup("tools");
+        m_ownAction = true;
+    }
+}
+
+#include "kis_tool_pan.moc"
+