1 /*****************************************************************************
4 ** Name: dlgreconstruct.cpp
5 ** Purpose: Reconstruction Animation Dialog
6 ** Programmer: Kevin Rosenberg
7 ** Date Started: August 2000
9 ** This is part of the CTSim program
10 ** Copyright (C) 1983-2000 Kevin Rosenberg
12 ** $Id: dlgreconstruct.cpp,v 1.6 2000/12/16 03:29:02 kevin Exp $
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License (version 2) as
16 ** published by the Free Software Foundation.
18 ** This program is distributed in the hope that it will be useful,
19 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ** GNU General Public License for more details.
23 ** You should have received a copy of the GNU General Public License
24 ** along with this program; if not, write to the Free Software
25 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 ******************************************************************************/
29 #pragma implementation "dlgreconstruct.h"
32 // For compilers that support precompilation, includes "wx.h".
33 #include "wx/wxprec.h"
42 #include "wx/button.h"
43 #include "wx/stattext.h"
44 #include "wx/layout.h"
47 #include "wx/settings.h"
48 #include "wx/dcclient.h"
53 #include "dlgreconstruct.h"
58 static const int LAYOUT_X_MARGIN = 4;
59 static const int LAYOUT_Y_MARGIN = 4;
62 const int ReconstructDialog::ID_BTN_PAUSE = 19998;
\r
63 const int ReconstructDialog::ID_BTN_STEP = 19999;
\r
64 const int ReconstructDialog::MAX_IMAGE_X = 400;
\r
65 const int ReconstructDialog::MAX_IMAGE_Y = 400;
\r
68 BEGIN_EVENT_TABLE(ReconstructDialog, wxDialog)
69 EVT_BUTTON(wxID_CANCEL, ReconstructDialog::OnCancel)
70 EVT_BUTTON(ID_BTN_PAUSE, ReconstructDialog::OnPause)
71 EVT_BUTTON(ID_BTN_STEP, ReconstructDialog::OnStep)
72 EVT_CLOSE(ReconstructDialog::OnClose)
73 EVT_PAINT(ReconstructDialog::OnPaint)
76 IMPLEMENT_CLASS(ReconstructDialog, wxDialog)
79 ReconstructDialog::ReconstructDialog (Reconstructor& rReconstruct, const Projections& rProj, ImageFile& rIF, const int iTrace, wxWindow *parent)
80 : wxDialog(parent, -1, "Reconstruction", wxDefaultPosition), m_rReconstructor(rReconstruct), m_rProjections(rProj), m_rImageFile(rIF), m_pSGPDriver(NULL), m_pSGP(NULL), m_iTrace(iTrace), m_pDC(NULL), m_btnAbort(0), m_btnPause(0), m_btnStep(0)
85 while ( m_parentTop && m_parentTop->GetParent() )
86 m_parentTop = m_parentTop->GetParent();
88 m_btnAbort = new wxButton(this, wxID_CANCEL, _("Cancel"));
89 wxLayoutConstraints* c = new wxLayoutConstraints;
90 c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
91 c->bottom.SameAs(this, wxBottom, 2*LAYOUT_Y_MARGIN);
93 wxSize sizeBtn = wxButton::GetDefaultSize();
94 c->width.Absolute(sizeBtn.x);
95 c->height.Absolute(sizeBtn.y);
97 m_btnAbort->SetConstraints(c);
99 m_btnPause = new wxButton (this, ID_BTN_PAUSE, wxString("Pause"));
100 wxLayoutConstraints* cPause = new wxLayoutConstraints;
101 cPause->right.SameAs(this, wxRight, 3*LAYOUT_X_MARGIN + sizeBtn.x);
102 cPause->bottom.SameAs(this, wxBottom, 2*LAYOUT_Y_MARGIN);
103 cPause->width.Absolute(sizeBtn.x);
104 cPause->height.Absolute(sizeBtn.y);
105 m_btnPause->SetConstraints(cPause);
107 m_btnStep = new wxButton (this, ID_BTN_STEP, wxString("Step"));
108 wxLayoutConstraints* cStep = new wxLayoutConstraints;
109 cStep->right.SameAs(this, wxRight, 5*LAYOUT_X_MARGIN + sizeBtn.x * 2);
110 cStep->bottom.SameAs(this, wxBottom, 2*LAYOUT_Y_MARGIN);
111 cStep->width.Absolute(sizeBtn.x);
112 cStep->height.Absolute(sizeBtn.y);
113 m_btnStep->SetConstraints(cStep);
120 wxSize sizeDlg (m_nxGraph, m_nyGraph);
121 m_nxImage = m_rImageFile.nx();
122 if (m_nxImage > MAX_IMAGE_X)
123 m_nxImage = MAX_IMAGE_X;
124 m_nyImage = m_rImageFile.ny();
125 if (m_nyImage > MAX_IMAGE_Y)
126 m_nyImage = MAX_IMAGE_Y;
128 sizeDlg.x += m_nxImage;
129 sizeDlg.y = max (sizeDlg.y, m_nyImage);
131 m_iClientX = sizeDlg.x;
132 m_iClientY = sizeDlg.y;
133 SetClientSize (sizeDlg);
135 m_bitmap.Create (m_iClientX, m_iClientY); // save a copy of screen
136 m_pDC = new wxMemoryDC;
137 m_pDC->SelectObject (m_bitmap); // in memoryDC
138 m_pDC->SetFont (*wxSWISS_FONT);
140 this->GetClientSize(&x, &y);
141 m_pSGPDriver = new SGPDriver (dynamic_cast<wxDC*>(m_pDC), x, y);
142 m_pSGP = new SGP (*m_pSGPDriver);
144 Centre(wxCENTER_FRAME | wxBOTH);
147 m_parentTop->Enable(FALSE);
150 Enable(TRUE); // enable this window
152 wxYield(); // Update the display
154 m_pSGPDriver->idWX()->SetFont(*wxSWISS_FONT);
156 MacUpdateImmediately();
161 ReconstructDialog::showView (int iViewNumber)
163 if ( iViewNumber < m_rProjections.nView() ) {
164 m_iLastView = iViewNumber;
165 m_pSGP->eraseWindow();
167 char szProgress [256];
168 snprintf (szProgress, sizeof(szProgress), "Reconstructing View %d (%.1f%%)", iViewNumber, 100 * iViewNumber / static_cast<double>(m_rProjections.nView()));
169 m_pSGP->setViewport (0, 0, 1, 1);
170 m_pSGP->setWindow (0, 0, 1, 1);
171 m_pSGP->setTextColor (C_LTRED, -1);
172 double dCharHeight = m_pSGP->getCharHeight();
173 m_pSGP->setTextSize (dCharHeight * 2);
174 m_pSGP->moveAbs(0., m_pSGP->getCharHeight());
175 m_pSGP->drawText (szProgress);
176 m_pSGP->setTextSize (dCharHeight);
178 m_pSGP->setViewport (0.0, 0.1, 0.66, 1.);
179 m_rReconstructor.reconstructView (iViewNumber, 1, m_pSGP);
181 ImageFileArrayConst v = m_rImageFile.getArray();
182 int xBase = m_nxGraph;
184 if (m_nyGraph > m_nyImage)
185 yBase = (m_nyGraph - m_nyImage) / 2;
186 double minValue = v[0][0];
187 double maxValue = v[0][0];
188 for (int ix = 0; ix < m_nxImage; ix++) {
189 for (int iy = 0; iy < m_nyImage; iy++) {
190 double dPixel = v[ix][iy];
191 if (dPixel < minValue)
193 else if (dPixel > maxValue)
197 unsigned char* imageData = new unsigned char [m_nxImage * m_nyImage * 3];
198 double dScale = 255 / (maxValue - minValue);
199 for (int ix2 = 0; ix2 < m_nxImage; ix2++) {
200 for (int iy = 0; iy < m_nyImage; iy++) {
201 double dPixel = v[ix2][iy];
202 dPixel = (dPixel - minValue) * dScale;
203 int intensity = nearest<int>(dPixel);
204 intensity = clamp (intensity, 0, 255);
205 int baseAddr = ((m_nyImage - 1 - iy) * m_nxImage + ix2) * 3;
206 imageData[baseAddr] = imageData[baseAddr+1] = imageData[baseAddr+2] = intensity;
209 wxImage image (m_nxImage, m_nyImage, imageData, true);
210 wxBitmap bitmap = image.ConvertToBitmap();
211 m_pSGP->getDriver().idWX()->DrawBitmap(bitmap, xBase, yBase, false);
219 ReconstructDialog::reconstructView (int iViewNumber)
221 if (iViewNumber <= m_iLastView) // have already done this view
224 if (iViewNumber < m_rProjections.nView()) {
225 ::wxYield(); // update the display
226 showView (iViewNumber);
227 ::wxYield(); // update the display
228 if (m_iTrace >= Trace::TRACE_PLOT) {
232 m_state = Finished; // so that we return TRUE below and
233 } // that [Cancel] handler knew what to do
236 MacUpdateImmediately();
239 ::wxYield(); // update the display
240 return m_state != Cancelled;
246 void ReconstructDialog::OnCancel (wxCommandEvent& event)
248 if ( m_state == Finished ) {
249 // this means that the count down is already finished and we're being
250 // shown as a modal dialog - so just let the default handler do the job
253 // request to cancel was received, the next time Update() is called we
257 // update the button state immediately so that the user knows that the
258 // request has been noticed
259 m_btnAbort->Disable();
265 ReconstructDialog::OnPause (wxCommandEvent& event)
267 if ( m_state == Finished ) {
268 // this means that the count down is already finished and we're being
269 // shown as a modal dialog - so just let the default handler do the job
272 if (m_state == Continue) {
274 m_btnPause->SetLabel (wxString("Resume"));
275 } else if (m_state == Paused) {
277 m_btnPause->SetLabel (wxString("Pause"));
283 ReconstructDialog::OnStep (wxCommandEvent& event)
285 if ( m_state == Finished ) {
288 if (m_state == Continue) {
290 m_btnPause->SetLabel (wxString("Resume"));
291 } else if (m_state == Paused) {
292 reconstructView (m_iLastView + 1);
297 void ReconstructDialog::OnClose(wxCloseEvent& event)
299 if ( m_state == Uncancellable )
300 event.Veto(TRUE); // can't close this dialog
301 else if ( m_state == Finished )
302 event.Skip(); // let the default handler close the window as we already terminated
304 m_state = Cancelled; // next Update() will notice it
308 ReconstructDialog::OnPaint (wxPaintEvent& event)
310 wxPaintDC paintDC (this);
311 paintDC.DrawBitmap(m_bitmap, 0, 0, false);
315 /////////////////////////////////////////////////////
318 ReconstructDialog::~ReconstructDialog()
321 m_parentTop->Enable(TRUE);