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 1.10 2000/12/18 05:40:30 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"
41 #include "wx/button.h"
42 #include "wx/stattext.h"
43 #include "wx/layout.h"
46 #include "wx/settings.h"
47 #include "wx/dcclient.h"
51 #include "dlgreconstruct.h"
56 static const int LAYOUT_X_MARGIN = 4;
57 static const int LAYOUT_Y_MARGIN = 4;
60 const int ReconstructDialog::ID_BTN_PAUSE = 19998;
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61 const int ReconstructDialog::ID_BTN_STEP = 19999;
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62 const int ReconstructDialog::MAX_IMAGE_X = 400;
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63 const int ReconstructDialog::MAX_IMAGE_Y = 400;
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66 BEGIN_EVENT_TABLE(ReconstructDialog, wxDialog)
67 EVT_BUTTON(wxID_CANCEL, ReconstructDialog::OnCancel)
68 EVT_BUTTON(ID_BTN_PAUSE, ReconstructDialog::OnPause)
69 EVT_BUTTON(ID_BTN_STEP, ReconstructDialog::OnStep)
70 EVT_CLOSE(ReconstructDialog::OnClose)
71 EVT_PAINT(ReconstructDialog::OnPaint)
74 IMPLEMENT_CLASS(ReconstructDialog, wxDialog)
77 ReconstructDialog::ReconstructDialog (Reconstructor& rReconstruct, const Projections& rProj, ImageFile& rIF, const int iTrace, wxWindow *parent)
78 : 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)
83 while ( m_parentTop && m_parentTop->GetParent() )
84 m_parentTop = m_parentTop->GetParent();
86 m_btnAbort = new wxButton(this, wxID_CANCEL, _("Cancel"));
87 wxLayoutConstraints* c = new wxLayoutConstraints;
88 c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
89 c->bottom.SameAs(this, wxBottom, 2*LAYOUT_Y_MARGIN);
91 wxSize sizeBtn = wxButton::GetDefaultSize();
92 c->width.Absolute(sizeBtn.x);
93 c->height.Absolute(sizeBtn.y);
95 m_btnAbort->SetConstraints(c);
97 m_btnPause = new wxButton (this, ID_BTN_PAUSE, wxString("Pause"));
98 wxLayoutConstraints* cPause = new wxLayoutConstraints;
99 cPause->right.SameAs(this, wxRight, 3*LAYOUT_X_MARGIN + sizeBtn.x);
100 cPause->bottom.SameAs(this, wxBottom, 2*LAYOUT_Y_MARGIN);
101 cPause->width.Absolute(sizeBtn.x);
102 cPause->height.Absolute(sizeBtn.y);
103 m_btnPause->SetConstraints(cPause);
105 m_btnStep = new wxButton (this, ID_BTN_STEP, wxString("Step"));
106 wxLayoutConstraints* cStep = new wxLayoutConstraints;
107 cStep->right.SameAs(this, wxRight, 5*LAYOUT_X_MARGIN + sizeBtn.x * 2);
108 cStep->bottom.SameAs(this, wxBottom, 2*LAYOUT_Y_MARGIN);
109 cStep->width.Absolute(sizeBtn.x);
110 cStep->height.Absolute(sizeBtn.y);
111 m_btnStep->SetConstraints(cStep);
118 wxSize sizeDlg (m_nxGraph, m_nyGraph);
119 m_nxImage = m_rImageFile.nx();
120 if (m_nxImage > MAX_IMAGE_X)
121 m_nxImage = MAX_IMAGE_X;
122 m_nyImage = m_rImageFile.ny();
123 if (m_nyImage > MAX_IMAGE_Y)
124 m_nyImage = MAX_IMAGE_Y;
126 sizeDlg.x += m_nxImage;
127 sizeDlg.y = max (sizeDlg.y, m_nyImage);
129 m_iClientX = sizeDlg.x;
130 m_iClientY = sizeDlg.y;
131 SetClientSize (sizeDlg);
133 Centre(wxCENTER_FRAME | wxBOTH);
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136 m_parentTop->Enable(FALSE);
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139 Enable(TRUE); // enable this window
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141 m_bitmap.Create (m_iClientX, m_iClientY); // save a copy of screen
142 m_pDC = dynamic_cast<wxDC*> (new wxClientDC (this));
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144 this->GetClientSize(&x, &y);
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145 m_pSGPDriver = new SGPDriver (m_pDC, x, y);
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146 m_pSGP = new SGP (*m_pSGPDriver);
147 m_pSGP->getDriver().idWX()->setDC (&m_pDC);
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149 wxYield(); // Update the display
151 m_pSGPDriver->idWX()->SetFont(*wxSWISS_FONT);
153 MacUpdateImmediately();
158 ReconstructDialog::showView (int iViewNumber, bool bBackprojectView)
160 // m_pSGP->setTextSize(0.01);
161 if ( iViewNumber < m_rProjections.nView() ) {
162 m_iLastView = iViewNumber;
163 ::wxYield(); // update the display
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164 m_pSGP->eraseWindow();
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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, bBackprojectView);
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);
217 ReconstructDialog::reconstructView (int iViewNumber)
219 if (iViewNumber <= m_iLastView) // have already done this view
222 if (iViewNumber < m_rProjections.nView()) {
223 ::wxYield(); // update the display
224 showView (iViewNumber, true);
225 ::wxYield(); // update the display
226 if (m_iTrace >= Trace::TRACE_PLOT) {
230 m_state = Finished; // so that we return TRUE below and
231 } // that [Cancel] handler knew what to do
234 MacUpdateImmediately();
237 ::wxYield(); // update the display
238 return m_state != Cancelled;
244 void ReconstructDialog::OnCancel (wxCommandEvent& event)
246 if ( m_state == Finished ) {
247 // this means that the count down is already finished and we're being
248 // shown as a modal dialog - so just let the default handler do the job
251 // request to cancel was received, the next time Update() is called we
255 // update the button state immediately so that the user knows that the
256 // request has been noticed
257 m_btnAbort->Disable();
263 ReconstructDialog::OnPause (wxCommandEvent& event)
265 if ( m_state == Finished ) {
266 // this means that the count down is already finished and we're being
267 // shown as a modal dialog - so just let the default handler do the job
269 } else if (m_state == Continue) {
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270 // m_memoryDC.SelectObject (m_bitmap); // in memoryDC
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271 // m_pSGP->setDC (&m_memoryDC);
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272 // m_memoryDC.SetFont (*wxSWISS_FONT);
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273 showView (m_iLastView, false);
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275 m_btnPause->SetLabel (wxString("Resume"));
276 } else if (m_state == Paused) {
277 // m_pSGP->setDC (m_pDC);
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278 // m_memoryDC.SelectObject(wxNullBitmap);
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280 m_btnPause->SetLabel (wxString("Pause"));
286 ReconstructDialog::OnStep (wxCommandEvent& event)
288 if ( m_state == Finished ) {
290 } else if (m_state == Continue) {
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291 // m_memoryDC.SelectObject (m_bitmap); // in memoryDC
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292 // m_pSGP->setDC (&m_memoryDC);
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293 // m_memoryDC.SetFont (*wxSWISS_FONT);
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294 showView (m_iLastView, false);
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296 m_btnPause->SetLabel (wxString("Resume"));
297 } else if (m_state == Paused) {
298 // m_pSGP->setDC (m_pDC);
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299 // m_memoryDC.SelectObject(wxNullBitmap);
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300 reconstructView (m_iLastView + 1);
304 void ReconstructDialog::OnClose(wxCloseEvent& event)
306 if ( m_state == Uncancellable )
307 event.Veto(TRUE); // can't close this dialog
308 else if ( m_state == Finished )
309 event.Skip(); // let the default handler close the window as we already terminated
311 m_state = Cancelled; // next Update() will notice it
315 ReconstructDialog::OnPaint (wxPaintEvent& event)
317 wxPaintDC paintDC (this);
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318 if (m_state == Paused) {
319 paintDC.DrawBitmap(m_bitmap, 0, 0, false);
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324 /////////////////////////////////////////////////////
327 ReconstructDialog::~ReconstructDialog()
330 m_parentTop->Enable(TRUE);