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         focused_win = 0;
  18
  19         bg_color[0] = 210;
  20         bg_color[1] = 106;
  21         bg_color[2] = 106;
  22 }
  23
  24 void WindowManager::invalidate_region(const Rect &rect)
  25 {
  26         dirty_rects.push_back(rect);
  27 }
  28
  29 void WindowManager::process_windows()
  30 {
  31         if(dirty_rects.empty()) {
  32                 return;
  33         }
  34
  35         std::list<Rect>::iterator drit = dirty_rects.begin();
  36         Rect uni = *drit++;
  37         while(drit != dirty_rects.end()) {
  38                 uni = rect_union(uni, *drit++);
  39         }
  40         dirty_rects.clear();
  41
  42         fill_rect(uni, bg_color[0], bg_color[1], bg_color[2]);
  43
  44         std::list<Window*>::iterator it = windows.begin();
  45         while(it != windows.end()) {
  46                 Rect intersect = rect_intersection((*it)->rect, uni);
  47                 if(intersect.width && intersect.height) {
  48                         (*it)->draw();
  49                 }
  50                 it++;
  51         }
  52 }
  53
  54 void WindowManager::add_window(Window *win)
  55 {
  56         if(windows.empty()) {
  57                 focused_win = win;
  58         }
  59
  60         windows.push_back(win);
  61 }
  62
  63 void WindowManager::set_focused_window(Window *win)
  64 {
  65         focused_win = win;
  66 }
  67
  68 const Window *WindowManager::get_focused_window() const
  69 {
  70         return focused_win;
  71 }
  72
  73 Window *WindowManager::get_focused_window()
  74 {
  75         return focused_win;
  76 }
  77
  78 Window *WindowManager::get_window_at_pos(int pointer_x, int pointer_y)
  79 {
  80         Window *win = 0;
  81         std::list<Window*>::reverse_iterator rit = windows.rbegin();
  82         while(rit != windows.rend()) {
  83                 if((*rit)->contains_point(pointer_x, pointer_y)) {
  84                         win = *rit;
  85                         break;
  86                 }
  87                 rit++;
  88         }
  89
  90         return win;
  91 }