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[edd6a7]: src / hugin1 / hugin / CPImageCtrl.cpp Maximize Restore History

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// -*- c-basic-offset: 4 -*-
/** @file CPImageCtrl.cpp
*
* @brief implementation of CPImageCtrl Class
*
* @author Pablo d'Angelo <pablo.dangelo@web.de>
*
* $Id$
*
* 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
// standard wx include
#include <config.h>
#include "panoinc_WX.h"
// standard hugin include
#include "panoinc.h"
#include "base_wx/platform.h"
#include <vigra/inspectimage.hxx>
#include <vigra/transformimage.hxx>
#include "hugin/config_defaults.h"
#include "hugin/CPImageCtrl.h"
#include "base_wx/ImageCache.h"
#include "hugin/CPEditorPanel.h"
#include "hugin/MainFrame.h"
#include "hugin/huginApp.h"
#include "vigra_ext/ImageTransforms.h"
#if 0
#include "hugin/UniversalCursor.h"
#endif
//#include "hugin/CPZoomDisplayPanel.h"
using namespace std;
using namespace hugin_utils;
// event stuff
// definition of the control point event
IMPLEMENT_DYNAMIC_CLASS( CPEvent, wxEvent )
#if _WINDOWS && defined Hugin_shared
DEFINE_LOCAL_EVENT_TYPE( EVT_CPEVENT )
#else
DEFINE_EVENT_TYPE( EVT_CPEVENT )
#endif
CPEvent::CPEvent( )
{
SetEventType( EVT_CPEVENT );
SetEventObject( (wxWindow *) NULL );
mode = NONE;
}
CPEvent::CPEvent(wxWindow* win, FDiff2D & p)
{
SetEventType( EVT_CPEVENT );
SetEventObject( win );
mode = NEW_POINT_CHANGED;
point = p;
}
CPEvent::CPEvent(wxWindow *win, unsigned int cpNr)
{
SetEventType( EVT_CPEVENT );
SetEventObject( win );
mode = POINT_SELECTED;
pointNr = cpNr;
}
CPEvent::CPEvent(wxWindow* win, unsigned int cpNr, const FDiff2D & p)
{
SetEventType( EVT_CPEVENT );
SetEventObject( win );
mode = POINT_CHANGED;
pointNr = cpNr;
point = p;
}
CPEvent::CPEvent(wxWindow* win, wxRect & reg)
{
SetEventType( EVT_CPEVENT );
SetEventObject( win );
mode = REGION_SELECTED;
region = reg;
}
CPEvent::CPEvent(wxWindow* win, CPEventMode evt_mode, const FDiff2D & p)
{
SetEventType(EVT_CPEVENT);
SetEventObject(win);
mode = evt_mode;
point = p;
}
wxEvent * CPEvent::Clone() const
{
return new CPEvent(*this);
}
// our image control
BEGIN_EVENT_TABLE(CPImageCtrl, wxScrolledWindow)
EVT_SIZE(CPImageCtrl::OnSize)
EVT_CHAR(CPImageCtrl::OnKey)
// EVT_KEY_UP(CPImageCtrl::OnKeyUp)
EVT_KEY_DOWN(CPImageCtrl::OnKeyDown)
EVT_LEAVE_WINDOW(CPImageCtrl::OnMouseLeave)
EVT_ENTER_WINDOW(CPImageCtrl::OnMouseEnter)
EVT_MOTION(CPImageCtrl::mouseMoveEvent)
EVT_LEFT_DOWN(CPImageCtrl::mousePressLMBEvent)
EVT_LEFT_UP(CPImageCtrl::mouseReleaseLMBEvent)
EVT_RIGHT_UP(CPImageCtrl::mouseReleaseRMBEvent)
EVT_MIDDLE_DOWN(CPImageCtrl::mousePressMMBEvent)
EVT_MIDDLE_UP(CPImageCtrl::mouseReleaseMMBEvent)
EVT_TIMER(-1, CPImageCtrl::OnTimer)
END_EVENT_TABLE()
bool CPImageCtrl::Create(wxWindow * parent, wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
wxScrolledWindow::Create(parent, id, pos, size, style, name);
selectedPointNr = 0;
editState = NO_IMAGE;
scaleFactor = 1;
fitToWindow = false;
m_showSearchArea = false;
m_searchRectWidth = 0;
m_showTemplateArea = false;
m_templateRectWidth = 0;
m_tempZoom = false;
m_savedScale = 1;
m_editPanel = 0;
m_imgRotation = ROT0;
wxString filename;
#if defined(__WXMSW__)
wxString cursorPath = huginApp::Get()->GetXRCPath() + wxT("/data/cursor_cp_pick.cur");
m_CPSelectCursor = new wxCursor(cursorPath, wxBITMAP_TYPE_CUR);
#else
m_CPSelectCursor = new wxCursor(wxCURSOR_CROSS);
#endif
// scroll cursor not used right now.
// m_ScrollCursor = new wxCursor(wxCURSOR_HAND);
SetCursor(*m_CPSelectCursor);
// TODO: define custom, light background colors.
pointColors.push_back(wxTheColourDatabase->Find(wxT("BLUE")));
textColours.push_back(wxTheColourDatabase->Find(wxT("WHITE")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("GREEN")));
textColours.push_back(wxTheColourDatabase->Find(wxT("WHITE")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("CYAN")));
textColours.push_back(wxTheColourDatabase->Find(wxT("BLACK")));
// pointColors.push_back(wxTheColourDatabase->Find(wxT("MAGENTA")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("GOLD")));
textColours.push_back(wxTheColourDatabase->Find(wxT("BLACK")));
// pointColors.push_back(wxTheColourDatabase->Find(wxT("ORANGE"));
pointColors.push_back(wxTheColourDatabase->Find(wxT("NAVY")));
textColours.push_back(wxTheColourDatabase->Find(wxT("WHITE")));
// pointColors.push_back(wxTheColourDatabase->Find(wxT("FIREBRICK")));
// pointColors.push_back(wxTheColourDatabase->Find(wxT("SIENNA")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("DARK TURQUOISE")));
textColours.push_back(wxTheColourDatabase->Find(wxT("BLACK")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("SALMON")));
textColours.push_back(wxTheColourDatabase->Find(wxT("BLACK")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("MAROON")));
textColours.push_back(wxTheColourDatabase->Find(wxT("BLACK")));
pointColors.push_back(wxTheColourDatabase->Find(wxT("KHAKI")));
textColours.push_back(wxTheColourDatabase->Find(wxT("BLACK")));
m_searchRectWidth = 120;
m_mouseInWindow = false;
m_forceMagnifier = false;
m_timer.SetOwner(this);
return true;
}
void CPImageCtrl::Init(CPEditorPanel * parent)
{
m_editPanel = parent;
}
CPImageCtrl::~CPImageCtrl()
{
DEBUG_TRACE("dtor");
this->SetCursor(wxNullCursor);
delete m_CPSelectCursor;
// delete m_ScrollCursor;
DEBUG_TRACE("dtor end");
}
/*
void CPImageCtrl::SetZoomView(CPZoomDisplayPanel * d)
{
m_zoomDisplay = d;
}
*/
void CPImageCtrl::OnDraw(wxDC & dc)
{
wxSize vSize = GetClientSize();
// draw image (FIXME, redraw only visible regions.)
if (editState != NO_IMAGE && m_img.get()) {
//clear the blank rectangle to the left of the image
if (bitmap.GetWidth() < vSize.GetWidth()) {
dc.SetPen(wxPen(GetBackgroundColour(), 1, wxSOLID));
dc.SetBrush(wxBrush(GetBackgroundColour(),wxSOLID));
dc.DrawRectangle(bitmap.GetWidth(), 0,
vSize.GetWidth() - bitmap.GetWidth(),vSize.GetHeight());
}
//clear the blank rectangle below the image
if (bitmap.GetHeight() < vSize.GetHeight()) {
dc.SetPen(wxPen(GetBackgroundColour(), 1, wxSOLID));
dc.SetBrush(wxBrush(GetBackgroundColour(),wxSOLID));
dc.DrawRectangle(0, bitmap.GetHeight(),
vSize.GetWidth(), vSize.GetHeight() - bitmap.GetHeight());
}
dc.DrawBitmap(bitmap,0,0);
} else {
// clear the rectangle and exit
dc.SetPen(wxPen(GetBackgroundColour(), 1, wxSOLID));
dc.SetBrush(wxBrush(GetBackgroundColour(),wxSOLID));
dc.Clear();
return;
}
// draw known points.
unsigned int i=0;
m_labelPos.resize(points.size());
vector<FDiff2D>::const_iterator it;
for (it = points.begin(); it != points.end(); ++it) {
if (! (editState == KNOWN_POINT_SELECTED && i==selectedPointNr)) {
m_labelPos[i] = drawPoint(dc, *it, i);
}
i++;
}
switch(editState) {
case SELECT_REGION:
dc.SetLogicalFunction(wxINVERT);
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
dc.DrawRectangle(scale(region.GetLeft()),
scale(region.GetTop()),
scale(region.GetWidth()),
scale(region.GetHeight()));
break;
case NEW_POINT_SELECTED:
// Boundary check
if ((newPoint.x < 0) || (newPoint.y < 0)) {
// Tried to create a point outside of the canvas. Ignore it.
break;
}
drawPoint(dc, newPoint, -1, true);
if (m_showTemplateArea) {
dc.SetLogicalFunction(wxINVERT);
dc.SetPen(wxPen(wxT("RED"), 1, wxSOLID));
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
//wxPoint upperLeft = roundP(scale(newPoint - FDiff2D(m_templateRectWidth, m_templateRectWidth)));
wxPoint upperLeft = applyRot(roundP(newPoint));
upperLeft = scale(upperLeft);
int width = scale(m_templateRectWidth);
dc.DrawRectangle(upperLeft.x-width, upperLeft.y-width, 2*width, 2*width);
dc.SetLogicalFunction(wxCOPY);
}
break;
case KNOWN_POINT_SELECTED:
m_labelPos[selectedPointNr] = drawPoint(dc, points[selectedPointNr], selectedPointNr, true);
break;
case NO_SELECTION:
case NO_IMAGE:
break;
}
if (m_showSearchArea && m_mousePos.x != -1){
dc.SetLogicalFunction(wxINVERT);
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
FDiff2D upperLeft = applyRot(m_mousePos);
upperLeft = scale(upperLeft);
int width = scale(m_searchRectWidth);
DEBUG_DEBUG("drawing rect " << upperLeft << " with width " << 2*width << " orig: " << m_searchRectWidth*2 << " scale factor: " << getScaleFactor());
dc.DrawRectangle(roundi(upperLeft.x - width), roundi(upperLeft.y-width), 2*width, 2*width);
dc.SetLogicalFunction(wxCOPY);
}
}
wxRect CPImageCtrl::drawPoint(wxDC & dc, const FDiff2D & pointIn, int i, bool selected) const
{
wxRect labelRect;
FDiff2D point = applyRot(pointIn);
double f = getScaleFactor();
if (f < 1) {
f = 1;
}
wxColour bgColor = pointColors[i%pointColors.size()];
wxColour textColor = textColours[i%textColours.size()];
wxString label = wxString::Format(wxT("%d"),i);
bool drawMag = false;
if (editState == KNOWN_POINT_SELECTED && i == (int) selectedPointNr) {
bgColor = wxTheColourDatabase->Find(wxT("RED"));
textColor = wxTheColourDatabase->Find(wxT("WHITE"));
drawMag = !m_mouseInWindow || m_forceMagnifier;
} else if (editState == NEW_POINT_SELECTED && i == -1){
bgColor = wxTheColourDatabase->Find(wxT("YELLOW"));
textColor = wxTheColourDatabase->Find(wxT("BLACK"));
label = _("new");
drawMag = true;
}
int style = wxConfigBase::Get()->Read(wxT("/CPEditorPanel/PointMarkersNumbered"),1l);
if (style) {
// TODO: adaptive color
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
dc.SetBrush(wxBrush(wxT("BLACK"),wxTRANSPARENT));
wxPoint p = roundP(scale(point));
int l = 6;
// draw cursor line, choose white or black
vigra::Rect2D box(roundi(pointIn.x-l), roundi(pointIn.y-l),
roundi(pointIn.x+l), roundi(pointIn.y+l));
// only use part inside.
box &= vigra::Rect2D(m_img->image8->size());
// calculate mean "luminance value"
vigra::FindAverage<vigra::UInt8> average; // init functor
vigra::RGBToGrayAccessor<vigra::RGBValue<vigra::UInt8> > lumac;
vigra::inspectImage(m_img->image8->upperLeft()+ box.upperLeft(),
m_img->image8->upperLeft()+ box.lowerRight(),
lumac, average);
if (average() < 128) {
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
} else {
dc.SetPen(wxPen(wxT("BLACK"), 1, wxSOLID));
}
dc.DrawLine(p + wxPoint(-l, 0),
p + wxPoint(-1, 0));
dc.DrawLine(p + wxPoint(2, 0),
p + wxPoint(l+1, 0));
dc.DrawLine(p + wxPoint(0, -l),
p + wxPoint(0, -1));
dc.DrawLine(p + wxPoint(0, 2),
p + wxPoint(0, l+1));
// calculate distance to the image boundaries,
// decide where to put the label and magnifier
// physical size of widget
wxSize clientSize = this->GetClientSize();
int vx0, vy0;
this->GetViewStart(&vx0, &vy0);
wxPoint pClient(p.x - vx0, p.y - vy0);
// space in upper left, upper right, lower left, lower right
//int maxDistUL = std::min(pClient.x, pClient.y);
int maxDistUR = std::min(clientSize.x - pClient.x, pClient.y);
int maxDistLL = std::min(pClient.x, clientSize.y - pClient.y);
int maxDistLR = std::min(clientSize.x - pClient.x, clientSize.y - pClient.y);
// text and magnifier offset
int toff = l-1;
// default to lower right
wxPoint tul = p + wxPoint(toff,toff);
// calculate text position and extend
// width of border around text label
int tB = 2;
wxFont font(8, wxFONTFAMILY_MODERN, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_LIGHT);
dc.SetFont(font);
wxCoord tw, th;
dc.GetTextExtent(label, &tw, &th);
if (drawMag) {
wxBitmap magBitmap = generateMagBitmap(pointIn, p);
// TODO: select position depending on visible part of canvas
wxPoint ulMag = tul;
// choose placement of the magnifier
int w = toff + magBitmap.GetWidth()+3;
int db = 5;
if ( maxDistLR > w + db ) {
ulMag = p + wxPoint(toff,toff);
} else if (maxDistLL > w + db) {
ulMag = p + wxPoint(-w, toff);
} else if (maxDistUR > w + db) {
ulMag = p + wxPoint(toff, -w);
} else {
ulMag = p + wxPoint(-w, -w);
}
dc.DrawBitmap(magBitmap, ulMag);
dc.SetPen(wxPen(wxT("BLACK"), 1, wxSOLID));
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
//dc.DrawRectangle(ulMag.x-1, ulMag.y-1, magBitmap.GetWidth()+3, magBitmap.GetHeight()+3);
// draw Bevel
int bw = magBitmap.GetWidth();
int bh = magBitmap.GetHeight();
dc.DrawLine(ulMag.x-1, ulMag.y+bh,
ulMag.x+bw+1, ulMag.y+bh);
dc.DrawLine(ulMag.x+bw, ulMag.y+bh,
ulMag.x+bw, ulMag.y-2);
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
dc.DrawLine(ulMag.x-1, ulMag.y-1,
ulMag.x+bw+1, ulMag.y-1);
dc.DrawLine(ulMag.x-1, ulMag.y+bh,
ulMag.x-1, ulMag.y-2);
}
// choose placement of text.
int db = 5;
int w = toff+tw+2*tB;
if ( maxDistLR > w + db && (!drawMag) ) {
tul = p + wxPoint(toff,toff);
} else if (maxDistLL > w + db) {
tul = p + wxPoint(-w, toff);
} else if (maxDistUR > w + db) {
tul = p + wxPoint(toff, -(toff) - (th+2*tB));
} else {
tul = p + wxPoint(-w, -(toff) - (th+2*tB));
}
// draw background
dc.SetPen(wxPen(textColor, 1, wxSOLID));
dc.SetBrush(wxBrush(bgColor ,wxSOLID));
dc.DrawRectangle(tul.x, tul.y, tw+2*tB+1, th+2*tB);
labelRect.SetLeft(tul.x);
labelRect.SetTop(tul.y);
labelRect.SetWidth(tw+2*tB+1);
labelRect.SetHeight(th+2*tB);
// draw number
dc.SetTextForeground(textColor);
dc.DrawText(label, tul + wxPoint(tB,tB));
} else {
dc.SetBrush(wxBrush(wxT("BLACK"), wxTRANSPARENT));
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
dc.SetPen(wxPen(bgColor, 2, wxSOLID));
dc.DrawCircle(roundP(scale(point)), roundi(6*f));
dc.SetPen(wxPen(wxT("BLACK"), roundi(1*f), wxSOLID));
dc.DrawCircle(roundP(scale(point)), roundi(7*f));
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
// dc.DrawCircle(scale(point), 4);
}
return labelRect;
}
#if 0
void CPImageCtrl::drawHighlightPoint(wxDC & dc, const FDiff2D & pointIn, int i) const
{
DEBUG_TRACE("")
FDiff2D point = applyRot(pointIn);
double f = getScaleFactor();
if (f < 1) {
f = 1;
}
wxColor color;
if (editState == KNOWN_POINT_SELECTED) {
color = wxTheColourDatabase->Find(wxT("RED"));
} else {
color = wxTheColourDatabase->Find(wxT("YELLOW"));
}
#if 1
// TODO: adaptive color for crosshair
dc.SetLogicalFunction(wxCOPY);
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
wxPoint p = roundP(scale(point));
int l = 6;
dc.DrawLine(p + wxPoint(-l, 0),
p + wxPoint(-1, 0));
dc.DrawLine(p + wxPoint(2, 0),
p + wxPoint(l+1, 0));
dc.DrawLine(p + wxPoint(0, -l),
p + wxPoint(0, -1));
dc.DrawLine(p + wxPoint(0, 2),
p + wxPoint(0, l+1));
#else
dc.SetBrush(wxBrush(wxT("WHITE"),wxTRANSPARENT));
dc.SetPen(wxPen(color, 3, wxSOLID));
dc.DrawCircle(roundP(scale(point)), roundi(7*f));
dc.SetPen(wxPen(wxT("BLACK"), roundi(1*f), wxSOLID));
dc.DrawCircle(roundP(scale(point)), roundi(8*f));
dc.SetPen(wxPen(wxT("WHITE"), 1, wxSOLID));
// dc.DrawCircle(scale(point), 4);
#endif
}
#endif
class ScalingTransform
{
public:
ScalingTransform(double scale)
: m_scale(scale) {};
bool transformImgCoord(double & sx, double & sy, double x, double y)
{
sx = m_scale*x;
sy = m_scale*y;
return true;
}
double m_scale;
};
wxBitmap CPImageCtrl::generateMagBitmap(FDiff2D point, wxPoint canvasPos) const
{
typedef vigra::RGBValue<vigra::UInt8> VT;
DEBUG_TRACE("")
// draw magnified image (TODO: warp!)
double magScale = 3.0;
wxConfigBase::Get()->Read(wxT("/CPEditorPanel/MagnifierScale"), &magScale);
// width (and height) of magnifier region (output), should be odd
int magWidth = wxConfigBase::Get()->Read(wxT("/CPEditorPanel/MagnifierWidth"),61l);
int hw = magWidth/2;
magWidth = hw*2+1;
// setup simple scaling transformation function.
ScalingTransform transform(1.0/magScale);
ScalingTransform invTransform(magScale);
wxImage img(magWidth, magWidth);
vigra::BasicImageView<VT> magImg((VT*)img.GetData(), magWidth,magWidth);
vigra::BImage maskImg(magWidth, magWidth);
vigra_ext::PassThroughFunctor<vigra::UInt8> ptf;
// middle pixel
double mx, my;
invTransform.transformImgCoord(mx, my, point.x, point.y);
// apply the transform
utils::MultiProgressDisplay progDisp;
vigra_ext::transformImageIntern(vigra::srcImageRange(*(m_img->image8)),
vigra::destImageRange(magImg),
vigra::destImage(maskImg),
transform,
ptf,
vigra::Diff2D(utils::roundi(mx - hw),
utils::roundi(my - hw)),
vigra_ext::interp_cubic(),
false,
progDisp);
// TODO: contrast enhancement
vigra::FindMinMax<vigra::UInt8> minmax;
vigra::inspectImage(vigra::srcImageRange(magImg), minmax);
// transform to range 0...255
vigra::transformImage(vigra::srcImageRange(magImg), vigra::destImage(magImg),
vigra::linearRangeMapping(
VT(minmax.min), VT(minmax.max), // src range
VT(0), VT(255)) // dest range
);
// vigra::transformImage(srcImageRange(magImg), destImage(magImg),
// vigra::BrightnessContrastFunctor<float>(brightness, contrast, minmax.min, minmax.max));
// draw cursor
for(int x=0; x < magWidth; x++) {
VT p =magImg(x,hw+1);
vigra::UInt8 v = 0.3/255*p.red() + 0.6/255*p.green() + 0.1/255*p.blue() < 0.5 ? 255 : 0;
p[0] = v;
p[1] = v;
p[2] = v;
magImg(x,hw+1) = p;
p = magImg(hw+1, x);
v = 0.3/255*p.red() + 0.6/255*p.green() + 0.1/255*p.blue() < 0.5 ? 255 : 0;
p[0] = v;
p[1] = v;
p[2] = v;
magImg(hw+1, x) = p;
}
// rotate image according to current display
switch(m_imgRotation) {
case ROT90:
img = img.Rotate90(true);
break;
case ROT180:
// this is slower than it needs to be...
img = img.Rotate90(true);
img = img.Rotate90(true);
break;
case ROT270:
img = img.Rotate90(false);
break;
default:
break;
}
return wxBitmap (img);
}
wxSize CPImageCtrl::DoGetBestSize() const
{
return wxSize(imageSize.GetWidth(),imageSize.GetHeight());
}
void CPImageCtrl::setImage(const std::string & file, ImageRotation imgRot)
{
DEBUG_TRACE("setting Image " << file);
imageFilename = file;
wxString fn(imageFilename.c_str(),HUGIN_CONV_FILENAME);
if (wxFileName::FileExists(fn)) {
m_imgRotation = imgRot;
m_img = ImageCache::getInstance().getImageIfAvailable(imageFilename);
editState = NO_SELECTION;
if (m_img.get()) {
rescaleImage();
} else {
// load the image in the background.
m_imgRequest = ImageCache::getInstance().requestAsyncImage(imageFilename);
m_imgRequest->ready.connect(
boost::bind(&CPImageCtrl::OnImageLoaded, this, _1, _2, _3));
// With m_img.get() 0, everything will act as normal except drawing.
}
} else {
editState = NO_IMAGE;
bitmap = wxBitmap();
SetSizeHints(0,0,0,0,1,1);
// delete the image (release shared_ptr)
// create an empty image.
m_img = ImageCache::EntryPtr(new ImageCache::Entry);
}
}
void CPImageCtrl::OnImageLoaded(ImageCache::EntryPtr entry, std::string filename, bool load_small)
{
// check we are still displaying this image
if (imageFilename == filename)
{
m_img = entry;
rescaleImage();
}
}
void CPImageCtrl::rescaleImage()
{
if (editState == NO_IMAGE) {
return;
}
wxImage img = imageCacheEntry2wxImage(m_img);
if (img.GetWidth() == 0) {
return;
}
imageSize = wxSize(img.GetWidth(), img.GetHeight());
m_realSize = imageSize;
if (fitToWindow) {
scaleFactor = calcAutoScaleFactor(imageSize);
}
DEBUG_DEBUG("src image size "
<< imageSize.GetHeight() << "x" << imageSize.GetWidth());
if (getScaleFactor() == 1.0) {
// need to rotate full image. warning. this can be very memory intensive
if (m_imgRotation != ROT0) {
wxImage tmp(img);
switch(m_imgRotation) {
case ROT90:
tmp = tmp.Rotate90(true);
break;
case ROT180:
// this is slower than it needs to be...
tmp = tmp.Rotate90(true);
tmp = tmp.Rotate90(true);
break;
case ROT270:
tmp = tmp.Rotate90(false);
break;
default:
break;
}
bitmap = wxBitmap(tmp);
} else {
bitmap = wxBitmap(img);
}
} else {
imageSize.SetWidth( scale(imageSize.GetWidth()) );
imageSize.SetHeight( scale(imageSize.GetHeight()) );
DEBUG_DEBUG("rescaling to " << imageSize.GetWidth() << "x"
<< imageSize.GetHeight() );
wxImage tmp= img.Scale(imageSize.GetWidth(), imageSize.GetHeight());
switch(m_imgRotation) {
case ROT90:
tmp = tmp.Rotate90(true);
break;
case ROT180:
// this is slower than it needs to be...
tmp = tmp.Rotate90(true);
tmp = tmp.Rotate90(true);
break;
case ROT270:
tmp = tmp.Rotate90(false);
break;
default:
break;
}
bitmap = wxBitmap(tmp);
DEBUG_DEBUG("rescaling finished");
}
if (m_imgRotation == ROT90 || m_imgRotation == ROT270) {
SetVirtualSize(imageSize.GetHeight(), imageSize.GetWidth());
} else {
SetVirtualSize(imageSize.GetWidth(), imageSize.GetHeight());
}
SetScrollRate(1,1);
Refresh(FALSE);
// SetSizeHints(-1,-1,imageSize.GetWidth(), imageSize.GetHeight(),1,1);
// SetScrollbars(16,16,bitmap.GetWidth()/16, bitmap.GetHeight()/16);
}
void CPImageCtrl::setCtrlPoints(const std::vector<FDiff2D> & cps)
{
points = cps;
if(editState == KNOWN_POINT_SELECTED)
editState = NO_SELECTION;
selectedPointNr = UINT_MAX;
// update view
update();
}
void CPImageCtrl::clearNewPoint()
{
DEBUG_TRACE("clearNewPoint");
if (editState != NO_IMAGE) {
editState = NO_SELECTION;
}
}
void CPImageCtrl::selectPoint(unsigned int nr)
{
DEBUG_TRACE("nr: " << nr);
if (nr < points.size()) {
selectedPointNr = nr;
editState = KNOWN_POINT_SELECTED;
showPosition(points[nr]);
update();
} else {
DEBUG_DEBUG("trying to select invalid point nr: " << nr << ". Nr of points: " << points.size());
}
}
void CPImageCtrl::deselect()
{
DEBUG_TRACE("deselecting points");
if (editState == KNOWN_POINT_SELECTED) {
editState = NO_SELECTION;
}
// update view
update();
}
void CPImageCtrl::showPosition(FDiff2D point, bool warpPointer)
{
DEBUG_DEBUG("x: " << point.x << " y: " << point.y);
// transform and scale the co-ordinate to the screen.
point = applyRot(point);
point = scale(point);
int x = roundi(point.x);
int y = roundi(point.y);
wxSize sz = GetClientSize();
int scrollx = x - sz.GetWidth()/2;
// if (x<0) x = 0;
int scrolly = y - sz.GetHeight()/2;
// if (y<0) x = 0;
// Scroll(x/16, y/16);
Scroll(scrollx, scrolly);
if (warpPointer) {
int sx,sy;
GetViewStart(&sx, &sy);
DEBUG_DEBUG("relative coordinages: " << x-sx << "," << y-sy);
WarpPointer(x-sx,y-sy);
}
}
CPImageCtrl::EditorState CPImageCtrl::isOccupied(wxPoint mousePos, const FDiff2D &p, unsigned int & pointNr) const
{
// check if mouse is hovering over a label
vector<wxRect>::const_iterator itr;
if (m_labelPos.size() == points.size() && m_labelPos.size() > 0) {
for(int i=m_labelPos.size()-1; i >= 0; i--) {
#if wxCHECK_VERSION(2,8,0)
if (m_labelPos[i].Contains(mousePos)) {
#else
if (m_labelPos[i].Inside(mousePos)) {
#endif
pointNr = i;
return KNOWN_POINT_SELECTED;
}
}
}
// check if mouse is over a known point
vector<FDiff2D>::const_iterator it;
for (it = points.begin(); it != points.end(); ++it) {
if (p.x < it->x + invScale(3) &&
p.x > it->x - invScale(3) &&
p.y < it->y + invScale(3) &&
p.y > it->y - invScale(3)
)
{
pointNr = it - points.begin();
return KNOWN_POINT_SELECTED;
break;
}
}
return NEW_POINT_SELECTED;
/*
if (p.x < newPoint.x + 4 &&
p.x > newPoint.x - 4 &&
p.y < newPoint.y + 4 &&
p.y > newPoint.y - 4)
{
// } else {
// return SELECT_REGION;
}
*/
}
void CPImageCtrl::mouseMoveEvent(wxMouseEvent& mouse)
{
wxPoint mpos_;
CalcUnscrolledPosition(mouse.GetPosition().x, mouse.GetPosition().y,
&mpos_.x, & mpos_.y);
FDiff2D mpos(mpos_.x, mpos_.y);
bool doUpdate = false;
mpos = applyRotInv(invScale(mpos));
mpos_ = applyRotInv(invScale(mpos_));
// if mouseclick is out of image, ignore
if (mpos.x >= m_realSize.GetWidth() || mpos.y >= m_realSize.GetHeight()) {
return;
}
// DEBUG_DEBUG(" pos:" << mpos.x << ", " << mpos.y);
// only if the shift key is not pressed.
if (mouse.LeftIsDown() && ! mouse.ShiftDown()) {
switch(editState) {
case NO_SELECTION:
DEBUG_DEBUG("mouse down movement without selection, in NO_SELECTION state!");
break;
case KNOWN_POINT_SELECTED:
if (mpos.x >= 0 && mpos.x <= m_realSize.GetWidth()){
points[selectedPointNr].x = mpos.x;
} else if (mpos.x < 0) {
points[selectedPointNr].x = 0;
} else if (mpos.x > m_realSize.GetWidth()) {
points[selectedPointNr].x = m_realSize.GetWidth();
}
if (mpos.y >= 0 && mpos.y <= m_realSize.GetHeight()){
points[selectedPointNr].y = mpos.y;
} else if (mpos.y < 0) {
points[selectedPointNr].y = 0;
} else if (mpos.y > m_realSize.GetHeight()) {
points[selectedPointNr].y = m_realSize.GetHeight();
}
// emit a notify event here.
//
//emit(pointMoved(selectedPointNr, points[selectedPointNr]));
// do more intelligent updating here?
doUpdate = true;
break;
// not possible.
case NEW_POINT_SELECTED:
DEBUG_DEBUG("WARNING: mouse move in new point state")
newPoint = mpos;
//emit(newPointMoved(newPoint));
doUpdate = true;
break;
case SELECT_REGION:
DEBUG_FATAL("Select region not in use anymore");
region.SetWidth(mpos_.x - region.x);
region.SetHeight(mpos_.y - region.y);
// do more intelligent updating here?
doUpdate = true;
break;
case NO_IMAGE:
break;
}
}
if (mouse.MiddleIsDown() || mouse.ShiftDown() || mouse.m_controlDown ) {
// scrolling with the mouse
if (m_mouseScrollPos !=mouse.GetPosition()) {
wxPoint delta_ = mouse.GetPosition() - m_mouseScrollPos;
double speed = (double)GetVirtualSize().GetHeight() / GetClientSize().GetHeight();
// int speed = wxConfigBase::Get()->Read(wxT("/CPEditorPanel/scrollSpeed"),5);
wxPoint delta;
delta.x = roundi(delta_.x * speed);
delta.y = roundi(delta_.y * speed);
// scrolling is done later
if (mouse.ShiftDown()) {
// emit scroll event, so that other window can be scrolled
// as well.
CPEvent e(this, CPEvent::SCROLLED, FDiff2D(delta.x, delta.y));
emit(e);
} else {
// scroll only our window
ScrollDelta(delta);
}
m_mouseScrollPos = mouse.GetPosition();
}
}
// DEBUG_DEBUG("ImageDisplay: mouse move, state: " << editState);
// draw a rectangle
if (m_showSearchArea) {
doUpdate = true;
}
unsigned int selPointNr;
if (isOccupied(mouse.GetPosition(), mpos, selPointNr) == KNOWN_POINT_SELECTED &&
(! (editState == KNOWN_POINT_SELECTED && selectedPointNr == selPointNr) ) ) {
SetCursor(wxCursor(wxCURSOR_ARROW));
} else {
SetCursor(*m_CPSelectCursor);
}
m_mousePos = mpos;
// repaint
if (doUpdate) {
update();
}
}
void CPImageCtrl::mousePressLMBEvent(wxMouseEvent& mouse)
{
DEBUG_DEBUG("LEFT MOUSE DOWN");
wxPoint mpos_;
CalcUnscrolledPosition(mouse.GetPosition().x, mouse.GetPosition().y,
&mpos_.x, & mpos_.y);
FDiff2D mpos(mpos_.x, mpos_.y);
mpos = applyRotInv(invScale(mpos));
mpos_ = applyRotInv(invScale(mpos_));
DEBUG_DEBUG("mousePressEvent, pos:" << mpos.x
<< ", " << mpos.y);
// if mouseclick is out of image, ignore
if (mpos.x >= m_realSize.GetWidth() || mpos.y >= m_realSize.GetHeight()) {
return;
}
unsigned int selPointNr = 0;
// EditorState oldstate = editState;
EditorState clickState = isOccupied(mouse.GetPosition(), mpos, selPointNr);
if (mouse.LeftDown() && editState != NO_IMAGE
&& mpos.x < m_realSize.x && mpos.y < m_realSize.y)
{
// we can always select a new point
if (clickState == KNOWN_POINT_SELECTED) {
DEBUG_DEBUG("click on point: " << selPointNr);
selectedPointNr = selPointNr;
point = points[selectedPointNr];
editState = clickState;
CPEvent e( this, selectedPointNr);
m_forceMagnifier = true;
emit(e);
} else if (clickState == NEW_POINT_SELECTED) {
DEBUG_DEBUG("click on new space, select region/new point");
// editState = SELECT_REGION;
editState = NEW_POINT_SELECTED;
newPoint = mpos;
region.x = roundi(mpos.x);
region.y = roundi(mpos.y);
} else {
DEBUG_ERROR("invalid state " << clickState << " on mouse down");
}
// DEBUG_DEBUG("ImageDisplay: mouse down, state change: " << oldstate
// << " -> " << editState);
}
m_mousePos = mpos;
}
void CPImageCtrl::OnTimer(wxTimerEvent & e)
{
m_forceMagnifier = false;
update();
}
void CPImageCtrl::mouseReleaseLMBEvent(wxMouseEvent& mouse)
{
DEBUG_DEBUG("LEFT MOUSE UP");
m_timer.Start(2000, true);
wxPoint mpos_;
CalcUnscrolledPosition(mouse.GetPosition().x, mouse.GetPosition().y,
&mpos_.x, & mpos_.y);
FDiff2D mpos(mpos_.x, mpos_.y);
mpos = applyRotInv(invScale(mpos));
DEBUG_DEBUG("mouseReleaseEvent, pos:" << mpos.x
<< ", " << mpos.y);
// if mouseclick is out of image, ignore
if (mpos.x >= m_realSize.GetWidth() || mpos.y >= m_realSize.GetHeight()) {
return;
}
// EditorState oldState = editState;
if (mouse.LeftUp()) {
switch(editState) {
case NO_SELECTION:
DEBUG_DEBUG("mouse release without selection");
break;
case KNOWN_POINT_SELECTED:
{
DEBUG_DEBUG("mouse release with known point " << selectedPointNr);
if (! (point == points[selectedPointNr]) ) {
CPEvent e( this, selectedPointNr, points[selectedPointNr]);
emit(e);
//emit(pointChanged(selectedPointNr, points[selectedPointNr]));
}
break;
}
case NEW_POINT_SELECTED:
{
// assert(drawNewPoint);
DEBUG_DEBUG("new Point changed (event fire): x:" << mpos.x << " y:" << mpos.y);
// fire the wxWin event
CPEvent e( this, newPoint);
emit(e);
//emit(newPointChanged(newPoint));
break;
}
case SELECT_REGION:
{
DEBUG_FATAL("Select region not in use anymore");
if (region.GetPosition() == roundP(mpos)) {
// create a new point.
editState = NEW_POINT_SELECTED;
newPoint = mpos;
DEBUG_DEBUG("new Point changed: x:" << mpos.x << " y:" << mpos.y);
//emit(newPointChanged(newPoint));
CPEvent e(this, newPoint);
emit(e);
update();
} else {
DEBUG_DEBUG("new Region selected " << region.GetLeft() << "," << region.GetTop() << " " << region.GetRight() << "," << region.GetBottom());
editState = NO_SELECTION;
// normalize region
if (region.GetWidth() < 0) {
region.SetX(region.GetRight());
}
if (region.GetHeight() < 0) {
region.SetY(region.GetBottom());
}
//emit(regionSelected(region));
CPEvent e(this, region);
emit(e);
update();
}
break;
}
case NO_IMAGE:
break;
}
// DEBUG_DEBUG("ImageDisplay: mouse release, state change: " << oldState
// << " -> " << editState);
}
}
void CPImageCtrl::mouseReleaseMMBEvent(wxMouseEvent& mouse)
{
DEBUG_DEBUG("middle mouse button released, leaving scroll mode")
// SetCursor(wxCursor(wxCURSOR_BULLSEYE));
}
void CPImageCtrl::mousePressMMBEvent(wxMouseEvent& mouse)
{
DEBUG_DEBUG("middle mouse button pressed, entering scroll mode")
m_mouseScrollPos = mouse.GetPosition();
// SetCursor(wxCursor(wxCURSOR_HAND));
}
void CPImageCtrl::mouseReleaseRMBEvent(wxMouseEvent& mouse)
{
wxPoint mpos_;
CalcUnscrolledPosition(mouse.GetPosition().x, mouse.GetPosition().y,
&mpos_.x, & mpos_.y);
FDiff2D mpos(mpos_.x, mpos_.y);
mpos = applyRotInv(invScale(mpos));
DEBUG_DEBUG("mouseReleaseEvent, pos:" << mpos.x
<< ", " << mpos.y);
// if mouseclick is out of image, ignore
if (mpos.x >= m_realSize.GetWidth() || mpos.y >= m_realSize.GetHeight()) {
return;
}
if (mouse.RightUp()) {
// set right up event
DEBUG_DEBUG("Emitting right click (rmb release)");
CPEvent e(this, CPEvent::RIGHT_CLICK, mpos);
emit(e);
}
}
void CPImageCtrl::update()
{
DEBUG_TRACE("edit state:" << editState);
wxClientDC dc(this);
PrepareDC(dc);
OnDraw(dc);
// updateZoomed();
}
/*
void CPImageCtrl::updateZoomed()
{
if (!m_zoomDisplay) return;
// update zoom view
switch(editState) {
case KNOWN_POINT_SELECTED:
// update known point
// m_zoomDisplay->SetPoint(points[selectedPointNr]);
break;
case NEW_POINT_SELECTED:
// m_zoomDisplay->SetPoint(newPoint);
break;
default:
break;
}
}
*/
bool CPImageCtrl::emit(CPEvent & ev)
{
if ( ProcessEvent( ev ) == FALSE ) {
wxLogWarning( _("Could not process event!") );
return false;
} else {
return true;
}
}
void CPImageCtrl::setScale(double factor)
{
if (factor == 0) {
fitToWindow = true;
factor = calcAutoScaleFactor(imageSize);
} else {
fitToWindow = false;
}
DEBUG_DEBUG("new scale factor:" << factor);
// update if factor changed
if (factor != scaleFactor) {
scaleFactor = factor;
// keep existing scale focussed.
rescaleImage();
}
}
double CPImageCtrl::calcAutoScaleFactor(wxSize size)
{
// TODO correctly autoscale rotated iamges
int w = size.GetWidth();
int h = size.GetHeight();
if (m_imgRotation == ROT90 || m_imgRotation == ROT270) {
int t = w;
w = h;
h = t;
}
// wxSize csize = GetClientSize();
wxSize csize = GetSize();
DEBUG_DEBUG("csize: " << csize.GetWidth() << "x" << csize.GetHeight() << "image: " << w << "x" << h);
double s1 = (double)csize.GetWidth()/w;
double s2 = (double)csize.GetHeight()/h;
DEBUG_DEBUG("s1: " << s1 << " s2:" << s2);
return s1 < s2 ? s1 : s2;
}
double CPImageCtrl::getScaleFactor() const
{
return scaleFactor;
}
void CPImageCtrl::OnSize(wxSizeEvent &e)
{
DEBUG_TRACE("size: " << e.GetSize().GetWidth() << "x" << e.GetSize().GetHeight());
// rescale bitmap if needed.
if (imageFilename != "") {
if (fitToWindow) {
setScale(0);
}
}
}
void CPImageCtrl::OnKey(wxKeyEvent & e)
{
DEBUG_TRACE(" OnKey, key:" << e.m_keyCode);
wxPoint delta(0,0);
// check for cursor keys, if control is not pressed
if ((!e.ControlDown()) && e.GetKeyCode() == WXK_LEFT ) delta.x = -1;
if ((!e.ControlDown()) && e.GetKeyCode() == WXK_RIGHT ) delta.x = 1;
if ((!e.ControlDown()) && e.GetKeyCode() == WXK_UP ) delta.y = -1;
if ((!e.ControlDown()) && e.GetKeyCode() == WXK_DOWN ) delta.y = 1;
if ( (delta.x != 0 || delta.y != 0 ) && (e.ShiftDown() || e.ControlDown())) {
// move to the left
double speed = (double) GetClientSize().GetWidth()/10;
delta.x = (int) (delta.x * speed);
delta.y = (int) (delta.y * speed);
if (e.ShiftDown()) {
// emit scroll event, so that other window can be scrolled
// as well.
CPEvent e(this, CPEvent::SCROLLED, FDiff2D(delta.x, delta.y));
emit(e);
} else if (e.ControlDown()) {
ScrollDelta(delta);
}
} else if (delta.x != 0 || delta.y != 0 ) {
FDiff2D shift(delta.x/3.0, delta.y/3.0);
// rotate shift according to current display
double t;
switch (m_imgRotation) {
case ROT90:
t = shift.x;
shift.x = shift.y;
shift.y = -t;
break;
case ROT180:
shift.x = -shift.x;
shift.y = -shift.y;
break;
case ROT270:
t = shift.x;
shift.x = -shift.y;
shift.y = t;
default:
break;
}
// move control point by half a pixel, if a point is selected
if (editState == KNOWN_POINT_SELECTED ) {
CPEvent e( this, selectedPointNr, points[selectedPointNr] + shift);
emit(e);
m_forceMagnifier = true;
m_timer.Stop();
m_timer.Start(2000, true);
} else if (editState == NEW_POINT_SELECTED) {
newPoint = newPoint + shift;
// update display.
update();
}
} else if (e.m_keyCode == 'a') {
DEBUG_DEBUG("adding point with a key, faking right click");
// faking right mouse button with "a"
// set right up event
CPEvent ev(this, CPEvent::RIGHT_CLICK, FDiff2D(0,0));
emit(ev);
} else {
// forward some keys...
bool forward = false;
switch (e.GetKeyCode())
{
case 'g':
case '0':
case '1':
case '2':
case 'f':
case WXK_RIGHT:
case WXK_LEFT:
case WXK_UP:
case WXK_DOWN:
case WXK_DELETE:
forward = true;
break;
default:
break;
}
if (forward) {
// dangelo: I don't understand why some keys are forwarded and others are not..
// Delete is forwared under wxGTK, and g not..
// wxWidgets 2.6.1 using gtk 2 doesn't set the event object
// properly.. do it here by hand
e.SetEventObject(this);
DEBUG_DEBUG("forwarding key " << e.GetKeyCode()
<< " origin: id:" << e.GetId() << " obj: "
<< e.GetEventObject());
// forward all keys to our parent
//GetParent()->GetEventHandler()->ProcessEvent(e);
#ifndef __WXMAC__
m_editPanel->GetEventHandler()->ProcessEvent(e);
#endif
} else {
e.Skip();
}
}
}
void CPImageCtrl::OnKeyDown(wxKeyEvent & e)
{
DEBUG_TRACE("key:" << e.m_keyCode);
#if 0
if (e.m_keyCode == WXK_SHIFT) {
DEBUG_DEBUG("shift down");
double scale = getScale();
if ((scale != 1) && (!m_tempZoom)) {
wxPoint mpos;
CalcUnscrolledPosition(e.m_x, e.m_y,
&mpos.x, & mpos.y);
mpos = invScale(mpos);
m_tempZoom = true;
m_savedScale = scale;
DEBUG_DEBUG("zoom into");
setScale(1);
showPosition(mpos.x, mpos.y);
}
} else {
e.Skip();
}
#endif
if (e.m_keyCode == WXK_SHIFT || e.m_keyCode == WXK_CONTROL) {
DEBUG_DEBUG("shift or control down, reseting scoll position");
m_mouseScrollPos = e.GetPosition();
}
e.Skip();
}
void CPImageCtrl::OnMouseLeave(wxMouseEvent & e)
{
DEBUG_TRACE("MOUSE LEAVE");
#if 0
DEBUG_TRACE("");
if (m_tempZoom) {
setScale(m_savedScale);
m_tempZoom = false;
}
#endif
m_mousePos = FDiff2D(-1,-1);
m_mouseInWindow = false;
update();
// SetCursor(wxCursor(wxCURSOR_BULLSEYE));
}
void CPImageCtrl::OnMouseEnter(wxMouseEvent & e)
{
DEBUG_TRACE("MOUSE Enter, setting focus");
m_mouseInWindow = true;
SetFocus();
update();
}
FDiff2D CPImageCtrl::getNewPoint()
{
// only possible if a new point is actually selected
// DEBUG_ASSERT(editState == NEW_POINT_SELECTED);
return newPoint;
}
void CPImageCtrl::setNewPoint(const FDiff2D & p)
{
DEBUG_DEBUG("setting new point " << p.x << "," << p.y);
// should we need to check for some precondition?
newPoint = p;
editState = NEW_POINT_SELECTED;
// show new point.
showPosition(p);
// we do not send an event, since CPEditorPanel
// caused the change.. so it doesn't need to filter
// out its own change messages.
}
void CPImageCtrl::showSearchArea(bool show)
{
m_showSearchArea = show;
if (show)
{
int templSearchAreaPercent = wxConfigBase::Get()->Read(wxT("/Finetune/SearchAreaPercent"), HUGIN_FT_SEARCH_AREA_PERCENT);
m_searchRectWidth = (m_realSize.GetWidth() * templSearchAreaPercent) / 200;
DEBUG_DEBUG("Setting new search area: w in %:" << templSearchAreaPercent << " bitmap width: " << bitmap.GetWidth() << " resulting size: " << m_searchRectWidth);
m_mousePos = FDiff2D(-1,-1);
}
}
void CPImageCtrl::showTemplateArea(bool show)
{
m_showTemplateArea = show;
if (show)
{
m_templateRectWidth = wxConfigBase::Get()->Read(wxT("/Finetune/TemplateSize"),HUGIN_FT_TEMPLATE_SIZE) / 2;
}
}
wxPoint CPImageCtrl::MaxScrollDelta(wxPoint delta)
{
int x,y;
GetViewStart( &x, &y );
wxSize winSize = GetClientSize();
wxSize imgSize;
imgSize.x = bitmap.GetWidth();
imgSize.y = bitmap.GetHeight();
// check for top and left border
if (x + delta.x < 0) {
delta.x = -x;
}
if (y + delta.y < 0) {
delta.y = -y;
}
// check for right and bottom border
int right = x + delta.x + winSize.x ;
if (right > imgSize.x) {
delta.x = imgSize.x - right;
if (delta.x < 0) {
delta.x = 0;
}
}
int bottom = y + delta.y + winSize.y ;
if (bottom > imgSize.y) {
delta.y = imgSize.y - bottom;
if (delta.y < 0) {
delta.y = 0;
}
}
return delta;
}
void CPImageCtrl::ScrollDelta(const wxPoint & delta)
{
// TODO: adjust
if (delta.x == 0 && delta.y == 0) {
return;
}
int x,y;
GetViewStart( &x, &y );
x = x + delta.x;
y = y + delta.y;
if (x<0) x = 0;
if (y<0) y = 0;
Scroll( x, y);
}
IMPLEMENT_DYNAMIC_CLASS(CPImageCtrl, wxScrolledWindow)
CPImageCtrlXmlHandler::CPImageCtrlXmlHandler()
: wxXmlResourceHandler()
{
AddWindowStyles();
}
wxObject *CPImageCtrlXmlHandler::DoCreateResource()
{
XRC_MAKE_INSTANCE(cp, CPImageCtrl)
cp->Create(m_parentAsWindow,
GetID(),
GetPosition(), GetSize(),
GetStyle(wxT("style")),
GetName());
SetupWindow( cp);
return cp;
}
bool CPImageCtrlXmlHandler::CanHandle(wxXmlNode *node)
{
return IsOfClass(node, wxT("CPImageCtrl"));
}
IMPLEMENT_DYNAMIC_CLASS(CPImageCtrlXmlHandler, wxXmlResourceHandler)