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/* Project nGenEx
Destroyer Studios LLC
Copyright © 1997-2004. All Rights Reserved.
SUBSYSTEM: nGenEx.lib
FILE: Screen.cpp
AUTHOR: John DiCamillo
OVERVIEW
========
General Screen class - maintains and displays a list of windows
*/
#include "MemDebug.h"
#include "Screen.h"
#include "Bitmap.h"
#include "Color.h"
#include "Window.h"
#include "Mouse.h"
#include "Pcx.h"
#include "Video.h"
// +--------------------------------------------------------------------+
Screen::Screen(Video* v)
: width(0), height(0), video(v), clear(0), closed(0)
{
if (video) {
width = video->Width();
height = video->Height();
}
Mouse::Create(this);
}
Screen::~Screen()
{
Mouse::Close();
closed = 1;
window_list.destroy();
}
// +--------------------------------------------------------------------+
bool
Screen::AddWindow(Window* c)
{
if (!c || closed) return false;
if (c->X() < 0) return false;
if (c->Y() < 0) return false;
if (c->X() + c->Width() > Width()) return false;
if (c->Y() + c->Height() > Height()) return false;
if (!window_list.contains(c))
window_list.append(c);
return true;
}
bool
Screen::DelWindow(Window* c)
{
if (!c || closed) return false;
return window_list.remove(c) == c;
}
// +--------------------------------------------------------------------+
void
Screen::ClearAllFrames(bool clear_all)
{
if (clear_all)
clear = -1;
else
clear = 0;
}
void
Screen::ClearNextFrames(int num_frames)
{
if (clear >= 0 && clear < num_frames)
clear = num_frames;
}
// +--------------------------------------------------------------------+
bool
Screen::SetBackgroundColor(Color c)
{
if (video)
return video->SetBackgroundColor(c);
else
return false;
}
// +--------------------------------------------------------------------+
bool
Screen::Resize(int w, int h)
{
// scale all root-level windows to new screen size:
ListIter<Window> iter = window_list;
while (++iter) {
Window* win = iter.value();
Rect tmprect = win->GetRect();
double w_x = tmprect.x / (double) width;
double w_y = tmprect.y / (double) height;
double w_w = tmprect.w / (double) width;
double w_h = tmprect.h / (double) height;
Rect r;
r.x = (int) (w_x * w);
r.y = (int) (w_y * h);
r.w = (int) (w_w * w);
r.h = (int) (w_h * h);
win->MoveTo(r);
}
width = w;
height = h;
return true;
}
// +--------------------------------------------------------------------+
bool
Screen::Refresh()
{
if (clear && !video->ClearAll())
return false;
video->StartFrame();
ListIter<Window> iter = window_list;
while (++iter) {
Window* win = iter.value();
if (win->IsShown()) {
win->Paint();
}
}
Mouse::Paint();
video->EndFrame();
if (clear > 0) clear--;
return true;
}
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