SOL9 Sample: ProportionalImageViewer
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1 Screenshot
2 Source code
/*
* ProportionalImageViewer.cpp
* Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*/
//2017/04/10
// This ProportionalImageViewer keeps the aspect ratio of cv::Mat image.
#define _CONSOLE_
#include <sol/FileDialog.h>
#include <sol/DropFiles.h>
#include <sol/ModuleFileName.h>
#include <sol/opencv/OpenCVApplicationView.h>
#include <sol/opencv/OpenCVImageView.h>
namespace SOL {
class MainView :public OpenCVApplicationView {
private:
////////////////////////////////////////////////////////////////////////////////////////
//Inner class starts.
class SimpleView :public OpenCVImageView {
private:
cv::Mat image;
cv::Mat& getMat()
{
return image;
}
void display()
{
show(image);
}
public:
SimpleView(View* parent, const TCHAR* name, Args& args)
:OpenCVImageView(parent, name, args)
{
try {
const char* filename = (const char*)args.get(XmNimageFileName);
int imageLoadingFlag = args.get(XmNimageLoadingFlag);
image = imread(filename, imageLoadingFlag);
} catch (SOL::Exception ex) {
caught(ex);
}
}
~SimpleView()
{
}
void loadImage(const char* filename, int flag = CV_LOAD_IMAGE_COLOR)
{
try {
image = readImage(filename, flag);
postResizeRequest();
refresh();
} catch (Exception& ex) {
caught(ex);
}
}
};
//Inner class ends.
////////////////////////////////////////////////////////////////////////////////////////
SmartPtr<SimpleView> view;
FileDialog filedlg;
void resize(int w, int h)
{
if (view) {
view -> reshape(0, 0, w, h);
}
}
void openFile(const char* filename)
{
try {
view -> loadImage(filename);
char title[MAX_PATH];
sprintf_s(title, CountOf(title), "%s - ImageViewer.exe", filename);
setText(title);
} catch (Exception& ex) {
caught(ex);
}
}
void dropFiles(Action& action)
{
char fileName[MAX_PATH] = { 0 };
DropFiles drop((HDROP)action.getWParam());
//fileName[0] = ZERO;
int num = drop.queryFile(0, fileName, CountOf(fileName));
if(num > 0) {
if (filedlg.isImageFileName(fileName)) {
openFile(fileName);
bringUp();
} else {
bringUp(); //Activate and raise this view
showErrorDialog("Invalid image filename", fileName, MB_OK);
}
}
}
void confirm(Action& action)
{
int rc = MessageBox(NULL, "Are you sure to close this window?", "Confirmation",
MB_OKCANCEL|MB_ICONEXCLAMATION);
if (rc == IDOK) {
exit(action);
}
}
public:
MainView(OpenCVApplication& applet, const TCHAR* name, Args& args)
:OpenCVApplicationView(applet, name, args)
{
try {
Args ar;
ar.set(XmNimageFileName, "..\\images\\flower.png");
ar.set(XmNimageLoadingFlag, CV_LOAD_IMAGE_COLOR);
view = new SimpleView(this, "cvwindow", ar);
view -> addCallback(XmNdropCallback, this,
(Callback)&MainView::dropFiles, NULL);
ar.reset();
ar.set(XmNfilter, FileDialog::getImageFilesFilter());
filedlg.create(this, "OpenFile", ar);
addCallback(XmNmenuCallback, IDM_EXIT, this,
(Callback)&MainView::confirm, NULL);
} catch (Exception& ex) {
caught(ex);
}
}
~MainView()
{
}
void open(Action& action)
{
Args ar;
char dir[MAX_PATH];
memset(dir, (TCHAR)0, CountOf(dir));
//Restore previously select folder from a registry(profile of this application) for fileDialog
if (restoreFileFolder(dir, CountOf(dir))) {
ar.set(XmNdirectory, dir);
filedlg.setValues(ar);
}
try {
if(filedlg.open()) {
const char* filename = filedlg.getFileName();
saveFileFolder(filename);
openFile(filename);
}
} catch (Exception& ex) {
caught(ex);
}
}
};
}
//
void main(int argc, TCHAR** argv)
{
try {
ModuleFileName module(argv[0]);
const char* name = module.getAppName();
OpenCVApplication applet(name, argc, argv);
Args args;
args.set(XmNwidth, 640);
args.set(XmNheight, 480);
MainView view(applet, name, args);
view.realize();
applet.run();
} catch (SOL::Exception& ex) {
caught(ex);
}
}
Last modified: 2 Dec. 2017
Copyright (c) 2017 Antillia.com ALL RIGHTS RESERVED.