First checkin. It works enough.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/CMakeLists.txt Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,14 @@
+PROJECT(wxcrop)
+
+FIND_PACKAGE(wxWidgets)
+
+IF (wxWidgets_FOUND)
+ INCLUDE(${wxWidgets_USE_FILE})
+ENDIF (wxWidgets_FOUND)
+
+
+ADD_EXECUTABLE(wxcrop
+ main.cpp
+ MainWindow.cpp
+ wxPictureWindow.cpp)
+TARGET_LINK_LIBRARIES(wxcrop ${wxWidgets_LIBRARIES})
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/CropArea.hpp Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,12 @@
+#ifndef _HEADER_CROPAREA_HPP_
+#define _HEADER_CROPAREA_HPP_
+
+struct CropArea
+{
+ long int width;
+ long int height;
+ long int x;
+ long int y;
+};
+
+#endif /* _HEADER_CROPAREA_HPP_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MainWindow.cpp Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,12 @@
+#include <wx/wx.h>
+#include <wx/image.h>
+#include "wxPictureWindow.hpp"
+#include "MainWindow.hpp"
+
+MainWindow::MainWindow(const wxImage &img, const CropArea area, const wxSize size)
+ :wxFrame(0, wxID_ANY, _("wxDjvuMaker"), wxDefaultPosition, size)
+{
+ wxBoxSizer *s = new wxBoxSizer(wxVERTICAL);
+ wxPictureWindow *picture = new wxPictureWindow(img, area, this);
+ s->Add(picture);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/MainWindow.hpp Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,13 @@
+#ifndef _HEADER_MAINWINDOW_HPP_
+#define _HEADER_MAINWINDOW_HPP_
+
+#include <wx/wx.h>
+#include "CropArea.hpp"
+
+class MainWindow : public wxFrame
+{
+public:
+ MainWindow(const wxImage &img, CropArea area, wxSize size);
+};
+
+#endif /* _HEADER_MAINWINDOW_HPP_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,54 @@
+#include <wx/wx.h>
+#include <wx/log.h>
+#include <wx/image.h>
+#include <wx/string.h>
+#include <wx/init.h>
+
+#include "MainWindow.hpp"
+
+class MyApp : public wxApp
+{
+ public:
+ virtual bool OnInit();
+};
+
+IMPLEMENT_APP(MyApp)
+
+bool MyApp::OnInit()
+{
+ if (argc < 2)
+ return false;
+
+ ::wxInitAllImageHandlers();
+
+ wxString filename(argv[1]);
+
+ wxLogVerbose(_T("Opening file %s."), filename.c_str());
+ wxImage img(filename);
+ if (!img.IsOk())
+ return false;
+
+ CropArea area;
+ if (argc < 6)
+ {
+ area.x = 0;
+ area.y = 0;
+ area.width = 0;
+ area.height = 0;
+ }
+ else
+ {
+ wxString(argv[2]).ToLong(&area.x);
+ wxString(argv[3]).ToLong(&area.y);
+ wxString(argv[4]).ToLong(&area.width);
+ wxString(argv[5]).ToLong(&area.height);
+ }
+
+ img.Rescale(img.GetWidth()/3, img.GetHeight()/3);
+
+ wxSize size(img.GetWidth(), img.GetHeight());
+ MainWindow *mw = new MainWindow(img, area, size);
+ mw->Show();
+
+ return true;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wxPictureWindow.cpp Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,64 @@
+#include <wx/scrolwin.h>
+#include <wx/image.h>
+#include <wx/bitmap.h>
+#include <wx/dc.h>
+#include <iostream>
+#include "wxPictureWindow.hpp"
+
+const int factor = 3;
+
+BEGIN_EVENT_TABLE(wxPictureWindow, wxScrolledWindow)
+ EVT_MOUSE_EVENTS (wxPictureWindow::OnMouse)
+END_EVENT_TABLE()
+
+wxPictureWindow::wxPictureWindow(const wxImage &img, const CropArea area, wxWindow *parent)
+ :wxScrolledWindow(parent, wxID_ANY),
+ _bmp(wxBitmap(img)),
+ _area(area)
+{
+ SetVirtualSize(_bmp.GetWidth(), _bmp.GetHeight());
+ SetScrollRate(10, 10);
+ _area.x /= factor;
+ _area.y /= factor;
+ _area.width /= factor;
+ _area.height /= factor;
+}
+
+void wxPictureWindow::OnDraw(wxDC &dc)
+{
+ dc.DrawBitmap(_bmp, 0, 0, false);
+
+ wxRect rect(_area.x, _area.y, _area.width, _area.height);
+ dc.SetPen(*wxGREEN_PEN);
+ dc.SetBrush(*wxTRANSPARENT_BRUSH);
+ dc.DrawRectangle(rect);
+}
+
+void wxPictureWindow::OnMouse(wxMouseEvent &ev)
+{
+ wxClientDC dc(this);
+ DoPrepareDC(dc);
+
+ if (ev.LeftDown())
+ {
+ _area.x = ev.GetLogicalPosition(dc).x;
+ _area.y = ev.GetLogicalPosition(dc).y;
+ _area.width = 0;
+ _area.height = 0;
+ }
+ else if (ev.LeftIsDown())
+ {
+ _area.width = ev.GetLogicalPosition(dc).x - _area.x;
+ _area.height = ev.GetLogicalPosition(dc).y - _area.y;
+ }
+
+ Refresh();
+}
+
+wxPictureWindow::~wxPictureWindow()
+{
+ std::cout << _area.x * factor << " ";
+ std::cout << _area.y * factor << " ";
+ std::cout << _area.width * factor << " ";
+ std::cout << _area.height * factor << std::endl;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wxPictureWindow.hpp Sat Nov 01 20:57:17 2008 +0100
@@ -0,0 +1,20 @@
+#include <wx/scrolwin.h>
+#include <wx/dcclient.h>
+#include "CropArea.hpp"
+
+class wxPictureWindow : public wxScrolledWindow
+{
+ public:
+ wxPictureWindow(const wxImage &img, CropArea area, wxWindow *parent);
+ ~wxPictureWindow();
+ protected:
+ virtual void OnDraw(wxDC &dc);
+ void OnMouse(wxMouseEvent &ev);
+
+ private:
+ wxString _filename;
+ wxBitmap _bmp;
+ CropArea _area;
+
+ DECLARE_EVENT_TABLE()
+};