1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/screen.cc	Sat Feb 01 19:58:19 2014 +0200
     1.3 @@ -0,0 +1,116 @@
     1.4 +#include <vector>
     1.5 +#include "opengl.h"
     1.6 +#include "screen.h"
     1.7 +#include "logger.h"
     1.8 +#include "unistate.h"
     1.9 +
    1.10 +static std::vector<Screen*> scrstack;
    1.11 +
    1.12 +void push_screen(Screen *screen)
    1.13 +{
    1.14 +	Screen *prev = current_screen();
    1.15 +	if(prev) {
    1.16 +		prev->stop();
    1.17 +	}
    1.18 +
    1.19 +	scrstack.push_back(screen);
    1.20 +	screen->start();
    1.21 +}
    1.22 +
    1.23 +Screen *pop_screen()
    1.24 +{
    1.25 +	if(scrstack.empty()) {
    1.26 +		error_log("trying to pop a screen, but the stack is empty!\n");
    1.27 +		return 0;
    1.28 +	}
    1.29 +	Screen *res = scrstack.back();
    1.30 +	scrstack.pop_back();
    1.31 +
    1.32 +	res->stop();
    1.33 +
    1.34 +	Screen *next = current_screen();
    1.35 +	if(next) {
    1.36 +		next->start();
    1.37 +	}
    1.38 +	return res;
    1.39 +}
    1.40 +
    1.41 +Screen *current_screen()
    1.42 +{
    1.43 +	if(scrstack.empty()) {
    1.44 +		return 0;
    1.45 +	}
    1.46 +	return scrstack.back();
    1.47 +}
    1.48 +
    1.49 +Screen *previous_screen()
    1.50 +{
    1.51 +	int sz = scrstack.size();
    1.52 +	if(sz < 2) {
    1.53 +		return 0;
    1.54 +	}
    1.55 +	return scrstack[sz - 2];
    1.56 +}
    1.57 +
    1.58 +Screen::~Screen()
    1.59 +{
    1.60 +}
    1.61 +
    1.62 +const char *Screen::get_name() const
    1.63 +{
    1.64 +	return "Screen";
    1.65 +}
    1.66 +
    1.67 +bool Screen::init()
    1.68 +{
    1.69 +	return true;
    1.70 +}
    1.71 +
    1.72 +void Screen::cleanup()
    1.73 +{
    1.74 +}
    1.75 +
    1.76 +void Screen::start()
    1.77 +{
    1.78 +}
    1.79 +
    1.80 +void Screen::stop()
    1.81 +{
    1.82 +}
    1.83 +
    1.84 +long Screen::redisplay_interval() const
    1.85 +{
    1.86 +	return 0;	// don't redisplay implicitly by default
    1.87 +}
    1.88 +
    1.89 +void Screen::update(unsigned long tmsec)
    1.90 +{
    1.91 +}
    1.92 +
    1.93 +void Screen::pre_draw() const
    1.94 +{
    1.95 +}
    1.96 +
    1.97 +void Screen::display() const
    1.98 +{
    1.99 +}
   1.100 +
   1.101 +void Screen::post_draw() const
   1.102 +{
   1.103 +}
   1.104 +
   1.105 +void Screen::keyboard(int key, bool pressed)
   1.106 +{
   1.107 +}
   1.108 +
   1.109 +void Screen::motion(int x, int y, bool pressed)
   1.110 +{
   1.111 +}
   1.112 +
   1.113 +void Screen::button(int bn, bool pressed, int x, int y)
   1.114 +{
   1.115 +}
   1.116 +
   1.117 +void Screen::reshape(int x, int y)
   1.118 +{
   1.119 +}