eleni.mutantstargoat.com Git - winnie/blob - src/wm.cc

   1 #include <stdexcept>
   2 #include "gfx.h"
   3 #include "wm.h"
   4 #include "window.h"
   5
   6 WindowManager *wm;
   7 static WindowManager wminst;
   8
   9 WindowManager::WindowManager()
  10 {
  11         if(!wm) {
  12                 wm = this;
  13         } else {
  14                 throw std::runtime_error("Trying to create a second instance of WindowManager!\n");
  15         }
  16
  17         bg_color[0] = 210;
  18         bg_color[1] = 106;
  19         bg_color[2] = 106;
  20 }
  21
  22 void WindowManager::invalidate_region(const Rect &rect)
  23 {
  24         dirty_rects.push_back(rect);
  25 }
  26
  27 void WindowManager::process_windows()
  28 {
  29         if(dirty_rects.empty()) {
  30                 return;
  31         }
  32
  33         std::list<Rect>::iterator drit = dirty_rects.begin();
  34         Rect uni = *drit++;
  35         while(drit != dirty_rects.end()) {
  36                 uni = rect_union(uni, *drit++);
  37         }
  38         dirty_rects.clear();
  39
  40         fill_rect(uni, bg_color[0], bg_color[1], bg_color[2]);
  41
  42         std::list<Window*>::iterator it = windows.begin();
  43         while(it != windows.end()) {
  44                 Rect intersect = rect_intersection((*it)->rect, uni);
  45                 if(intersect.width && intersect.height) {
  46                         (*it)->draw();
  47                 }
  48         }
  49 }
  50
  51 void WindowManager::add_window(Window *win)
  52 {
  53         windows.push_back(win);
  54 }