ImageView
Simple image viewer
main.cpp
#include <CtrlLib/CtrlLib.h>
using namespace Upp;
class ImageView : public TopWindow {
public:
virtual bool Key(dword key, int);
private:
ImageCtrl img;
FileList files;
Splitter splitter;
String dir;
FrameTop<Button> dirup;
void Load(const char *filename);
void Enter();
void DoDir();
void DirUp();
public:
void Serialize(Stream& s);
void LoadDir(const char *d);
void LoadDir() { LoadDir(dir); }
ImageView();
};
void ImageView::Load(const char *filename)
{
Image m = StreamRaster::LoadFileAny(filename);
if(IsNull(m))
return;
Size rsz = img.GetSize();
Size isz = m.GetSize();
if(isz.cx >= rsz.cx || isz.cy >= rsz.cy) {
if(isz.cx * rsz.cx < rsz.cy * isz.cy)
rsz.cx = isz.cx * rsz.cy / isz.cy;
else
rsz.cy = isz.cy * rsz.cx / isz.cx;
m = Rescale(m, rsz);
img.SetImage(Rescale(m, rsz));
}
img.SetImage(m);
}
void ImageView::LoadDir(const char *d)
{
files.Clear();
dir = d;
Title(dir);
::Load(files, dir, "*.*");
SortByExt(files);
}
void ImageView::DirUp()
{
String n = DirectoryUp(dir);
LoadDir(dir);
files.FindSetCursor(n);
}
void ImageView::Enter()
{
if(!files.IsCursor()) {
Title(dir);
return;
}
const FileList::File& f = files.Get(files.GetCursor());
if(f.name == "..") {
Title(dir);
return;
}
String p = AppendFileName(dir, f.name);
Title(p);
if(!f.isdir)
Load(p);
}
void ImageView::DoDir()
{
if(!files.IsCursor())
return;
const FileList::File& f = files.Get(files.GetCursor());
if(!f.isdir)
return;
LoadDir(AppendFileName(dir, f.name));
}
bool ImageView::Key(dword key, int)
{
if(key == K_ENTER) {
DoDir();
return true;
}
return false;
}
void ImageView::Serialize(Stream& s)
{
int version = 0;
s / version;
SerializePlacement(s);
files.SerializeSettings(s);
s % dir;
s % splitter;
}
ImageView::ImageView()
{
splitter.Horz(files, img);
splitter.SetPos(2700);
Add(splitter.SizePos());
files.WhenEnterItem = [=] { Enter(); };
files.WhenLeftDouble = [=] { DoDir(); };
dirup.Height(max(CtrlImg::DirUp().GetSize().cy, Draw::GetStdFontCy() + 6));
dirup.SetImage(CtrlImg::DirUp());
dirup.NormalStyle();
dirup << [=] { DirUp(); };
files.AddFrame(dirup);
Sizeable().Zoomable();
dir = GetCurrentDirectory();
}
GUI_APP_MAIN
{
ImageView x;
LoadFromFile(x);
x.LoadDir();
x.Run();
StoreToFile(x);
}
|
