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365 lines
11 KiB
365 lines
11 KiB
/*
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* Kivio - Visual Modelling and Flowcharting
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* Copyright (C) 2000-2003 theKompany.com & Dave Marotti,
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* Peter Simonsson
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "tool_zoom.h"
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#include "kivio_view.h"
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#include "kivio_page.h"
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#include "kivio_canvas.h"
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#include "kivio_factory.h"
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#include <kaction.h>
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#include <kiconloader.h>
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#include <klocale.h>
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#include <kpopupmenu.h>
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#include <ktoolbar.h>
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#include <KoMainWindow.h>
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#include <kdebug.h>
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#include <KoZoomHandler.h>
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#include <KoPoint.h>
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#include <kstdaction.h>
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#include <KoZoomAction.h>
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#include <tqapplication.h>
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#include <tqcursor.h>
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ZoomTool::ZoomTool(KivioView* parent) : Kivio::MouseTool(parent, "Zoom Mouse Tool")
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{
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m_zoomAction = new KRadioAction(i18n("&Zoom"), "viewmag", CTRL + ALT + Key_Z, actionCollection(), "zoom");
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m_zoomAction->setWhatsThis(i18n("By pressing this button you can zoom in on a specific area."));
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m_panAction = new KRadioAction(i18n("&Pan Document"), "kivio_zoom_hand", CTRL + ALT + Key_H, actionCollection(), "pan");
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m_panAction->setWhatsThis(i18n("You can drag the document by using the mouse."));
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m_zoomAction->setExclusiveGroup("zoomAction");
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m_panAction->setExclusiveGroup("zoomAction");
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connect(m_zoomAction,TQT_SIGNAL(activated()),TQT_SLOT(zoomActivated()));
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connect(m_panAction,TQT_SIGNAL(activated()),TQT_SLOT(handActivated()));
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connect(m_zoomAction, TQT_SIGNAL(toggled(bool)), this, TQT_SLOT(setActivated(bool)));
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connect(m_panAction, TQT_SIGNAL(toggled(bool)), this, TQT_SLOT(setActivated(bool)));
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KoZoomAction* viewZoom = new KoZoomAction(i18n("Zoom &Level"), "viewmag", 0, actionCollection(), "viewZoom" );
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viewZoom->setWhatsThis(i18n("This allows you to zoom in or out of a document. You can either choose one of the predefined zoomfactors or enter a new zoomfactor (in percent)."));
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connect(viewZoom, TQT_SIGNAL(zoomChanged(const TQString&)), parent, TQT_SLOT(viewZoom(const TQString&)));
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connect(parent, TQT_SIGNAL(zoomChanged(int)), viewZoom, TQT_SLOT(setZoom(int)));
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m_pPlus = KStdAction::zoomIn(this, TQT_SLOT(zoomPlus()), actionCollection(), "zoomPlus");
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m_pPlus->setWhatsThis(i18n("You can zoom in on the document by pressing this button."));
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m_pMinus = KStdAction::zoomOut(this, TQT_SLOT(zoomMinus()), actionCollection(), "zoomMinus");
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m_pMinus->setWhatsThis(i18n("By pressing this button you can zoom out of the document."));
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m_pZoomWidth = new KAction( i18n("Zoom Width"), "kivio_zoom_width", SHIFT+Key_F4, actionCollection(), "zoomWidth" );
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m_pZoomWidth->setWhatsThis(i18n("You can zoom the document that it fits into the window width."));
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connect(m_pZoomWidth,TQT_SIGNAL(activated()),TQT_SLOT(zoomWidth()));
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m_pZoomHeight = new KAction( i18n("Zoom Height"), "kivio_zoom_height", SHIFT+Key_F5, actionCollection(), "zoomHeight" );
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m_pZoomHeight->setWhatsThis(i18n("You can zoom the document that it fits into the window height."));
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connect(m_pZoomHeight,TQT_SIGNAL(activated()),TQT_SLOT(zoomHeight()));
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m_pZoomPage = new KAction( i18n("Zoom Page"), "kivio_zoom_page", SHIFT+Key_F6, actionCollection(), "zoomPage" );
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m_pZoomPage->setWhatsThis(i18n("The Zoom Page button shows the entire page."));
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connect(m_pZoomPage,TQT_SIGNAL(activated()),TQT_SLOT(zoomPage()));
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m_pZoomSelected = new KAction( i18n("Zoom Selected"), "kivio_zoom_selected", CTRL+Key_Y, actionCollection(), "zoomSelected" );
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m_pZoomSelected->setWhatsThis(i18n("By pressing this button you zoom in on the document, so that all <b>selected</b> objects are visible."));
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connect(m_pZoomSelected,TQT_SIGNAL(activated()),TQT_SLOT(zoomSelected()));
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m_pZoomAllObjects = new KAction( i18n("Zoom All Objects"), "kivio_zoom_allobject", 0, actionCollection(), "zoomAllObjects" );
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m_pZoomAllObjects->setWhatsThis(i18n("You are able to zoom in on the document, so that all objects are visible by pressing this button."));
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connect(m_pZoomAllObjects,TQT_SIGNAL(activated()),TQT_SLOT(zoomAllobjects()));
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TQPixmap pix;
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pix = BarIcon("kivio_zoom_plus",KivioFactory::global());
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m_pPlusCursor = new TQCursor(pix,pix.width()/2,pix.height()/2);
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pix = BarIcon("kivio_zoom_minus",KivioFactory::global());
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m_pMinusCursor = new TQCursor(pix,pix.width()/2,pix.height()/2);
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pix = BarIcon("kivio_zoom_hand",KivioFactory::global());
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m_handCursor = new TQCursor(pix,pix.width()/2,pix.height()/2);
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m_pMenu = 0;
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}
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ZoomTool::~ZoomTool()
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{
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delete m_pPlusCursor;
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delete m_pMinusCursor;
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delete m_handCursor;
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}
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bool ZoomTool::processEvent(TQEvent* e)
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{
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KivioCanvas* canvas = view()->canvasWidget();
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if(!m_bHandMode) {
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switch(e->type()) {
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case TQEvent::KeyPress:
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if (!m_bLockKeyboard && (TQT_TQKEYEVENT(e)->key() == Key_Shift)) {
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m_pCurrent = m_pMinus;
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canvas->setCursor(*m_pMinusCursor);
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return true;
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}
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break;
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case TQEvent::KeyRelease:
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if (!m_bLockKeyboard && (TQT_TQKEYEVENT(e)->key() == Key_Shift)) {
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m_pCurrent = m_pPlus;
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canvas->setCursor(*m_pPlusCursor);
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return true;
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}
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break;
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case TQEvent::MouseButtonPress:
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{
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TQMouseEvent* me = TQT_TQMOUSEEVENT(e);
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if(me->button() == Qt::LeftButton) {
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if(m_pCurrent == m_pMinus) {
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m_pCurrent->activate();
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} else {
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m_bLockKeyboard = true;
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m_bDrawRubber = true;
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canvas->startRectDraw(me->pos(), KivioCanvas::Rubber);
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}
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} else {
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showPopupMenu(me->globalPos());
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}
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return true;
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break;
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}
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case TQEvent::MouseButtonRelease:
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if(m_pCurrent == m_pPlus && m_bDrawRubber) {
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canvas->endRectDraw();
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m_bDrawRubber = false;
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m_bLockKeyboard = false;
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zoomRect(canvas->rect());
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return true;
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}
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break;
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case TQEvent::MouseMove:
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if (m_bDrawRubber) {
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canvas->continueRectDraw(TQT_TQMOUSEEVENT(e)->pos(), KivioCanvas::Rubber);
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return true;
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}
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break;
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default:
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break;
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}
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} else {
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switch(e->type()) {
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case TQEvent::MouseButtonPress:
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isHandMousePressed = true;
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mousePos = TQT_TQMOUSEEVENT(e)->pos();
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return true;
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break;
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case TQEvent::MouseButtonRelease:
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isHandMousePressed = false;
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return true;
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break;
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case TQEvent::MouseMove:
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if (isHandMousePressed) {
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canvas->setUpdatesEnabled(false);
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TQPoint newPos = TQT_TQMOUSEEVENT(e)->pos();
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mousePos -= newPos;
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canvas->scrollDx(-mousePos.x());
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canvas->scrollDy(-mousePos.y());
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mousePos = newPos;
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canvas->setUpdatesEnabled(true);
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return true;
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}
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break;
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default:
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break;
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}
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}
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return false;
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}
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void ZoomTool::setActivated(bool a)
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{
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if(a) {
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m_pCurrent = m_pPlus;
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emit activated(this);
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} else {
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kdDebug(43000) << "ZoomTool DeActivate" << endl;
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m_pCurrent = 0L;
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m_zoomAction->setChecked(false);
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m_panAction->setChecked(false);
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view()->setStatusBarInfo("");
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if (!view()->canvasWidget()->isUpdatesEnabled()) {
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view()->canvasWidget()->setUpdatesEnabled(true);
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}
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}
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}
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void ZoomTool::zoomActivated()
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{
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view()->canvasWidget()->setCursor(*m_pPlusCursor);
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m_bHandMode = false;
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m_bDrawRubber = false;
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m_bLockKeyboard = false;
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m_zoomAction->setChecked(true);
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m_panAction->setChecked(false);
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view()->setStatusBarInfo(i18n("Hold Shift to zoom out."));
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}
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void ZoomTool::handActivated()
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{
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view()->canvasWidget()->setCursor(*m_handCursor);
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m_bHandMode = true;
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isHandMousePressed = false;
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m_zoomAction->setChecked(false);
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m_panAction->setChecked(true);
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}
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void ZoomTool::zoomPlus()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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canvas->zoomIn(TQPoint(canvas->width()/2, canvas->height()/2));
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if(view()->zoomHandler()->zoom() >= 2000)
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{
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m_pPlus->setEnabled(false);
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m_pMinus->setEnabled(true);
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}
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else
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{
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m_pPlus->setEnabled(true);
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m_pMinus->setEnabled(true);
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}
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}
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void ZoomTool::zoomMinus()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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canvas->zoomOut(TQPoint(canvas->width()/2, canvas->height()/2));
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if(view()->zoomHandler()->zoom() <= 25)
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{
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m_pMinus->setEnabled(false);
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m_pPlus->setEnabled(true);
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}
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else
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{
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m_pMinus->setEnabled(true);
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m_pPlus->setEnabled(true);
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}
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}
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void ZoomTool::zoomWidth()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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KoZoomHandler zoom;
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zoom.setZoomAndResolution(100, KoGlobal::dpiX(),
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KoGlobal::dpiY());
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int cw = TQMAX(10,canvas->width()-20);
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KoPageLayout pl = canvas->activePage()->paperLayout();
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float w = zoom.zoomItX(pl.ptWidth);
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float z = cw/w;
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canvas->setUpdatesEnabled(false);
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view()->viewZoom(tqRound(z * 100));
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canvas->setUpdatesEnabled(true);
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}
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void ZoomTool::zoomHeight()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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KoZoomHandler zoom;
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zoom.setZoomAndResolution(100, KoGlobal::dpiX(),
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KoGlobal::dpiY());
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int ch = TQMAX(10,canvas->height()-20);
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KoPageLayout pl = canvas->activePage()->paperLayout();
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float h = zoom.zoomItY(pl.ptHeight);
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float zh = ch/h;
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canvas->setUpdatesEnabled(false);
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view()->viewZoom(tqRound(zh * 100));
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canvas->setUpdatesEnabled(true);
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}
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void ZoomTool::zoomPage()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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KoZoomHandler zoom;
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zoom.setZoomAndResolution(100, KoGlobal::dpiX(),
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KoGlobal::dpiY());
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int cw = TQMAX(10,canvas->width()-20);
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int ch = TQMAX(10,canvas->height()-20);
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KoPageLayout pl = canvas->activePage()->paperLayout();
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float w = zoom.zoomItX(pl.ptWidth);
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float h = zoom.zoomItY(pl.ptHeight);
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float z = TQMIN(cw/w,ch/h);
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canvas->setUpdatesEnabled(false);
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view()->viewZoom(tqRound(z * 100));
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canvas->setUpdatesEnabled(true);
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}
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void ZoomTool::showPopupMenu(const TQPoint& p )
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{
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if(!m_pMenu) {
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m_pMenu = static_cast<KPopupMenu*>(factory()->container("ZoomPopup", this));
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}
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if(m_pMenu) {
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m_pMenu->popup(p);
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} else {
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kdDebug(43000) << "What no popup! *ARGH*!" << endl;
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}
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}
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void ZoomTool::zoomSelected()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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KoRect r = canvas->activePage()->getRectForAllSelectedStencils();
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if (!r.isNull() && r.isValid()) {
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canvas->setVisibleArea(r);
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}
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}
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void ZoomTool::zoomAllobjects()
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{
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KivioCanvas* canvas = view()->canvasWidget();
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KoRect r = canvas->activePage()->getRectForAllStencils();
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if (!r.isNull() && r.isValid()) {
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canvas->setVisibleArea(r);
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}
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}
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void ZoomTool::zoomRect(TQRect r)
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{
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KivioCanvas* canvas = view()->canvasWidget();
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if (r.isEmpty()) {
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canvas->zoomIn(r.topLeft());
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return;
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}
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KoPoint p0 = canvas->mapFromScreen(r.topLeft());
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canvas->setVisibleArea(KoRect(p0.x(), p0.y(), view()->zoomHandler()
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->unzoomItX(r.width()), view()->zoomHandler()->unzoomItY(r.height())));
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}
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#include "tool_zoom.moc"
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