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

   1 #include <algorithm>
   2 #include <stdexcept>
   3
   4 #include "gfx.h"
   5 #include "wm.h"
   6 #include "window.h"
   7 #include "mouse.h"
   8 #include "mouse_cursor.h"
   9
  10 WindowManager *wm;
  11 static WindowManager wminst;
  12
  13 static void display(Window *win);
  14 static void mouse(Window *win, int key, bool pressed);
  15 static void motion(Window *win, int x, int y);
  16
  17 void WindowManager::create_frame(Window *win)
  18 {
  19         Window *frame = new Window;
  20         Window *parent = win->get_parent();
  21
  22         frame->set_display_callback(display);
  23 //      frame->set_mouse_button_callback(mouse);
  24 //      frame->set_mouse_motion_callback(motion);
  25
  26         frame->add_child(win);
  27         frames.push_back(frame);
  28
  29         Rect win_rect = win->get_rect();
  30         frame->move(win_rect.x - frame_thickness,
  31                         win_rect.y - frame_thickness - titlebar_thickness);
  32         frame->resize(win_rect.width + frame_thickness * 2,
  33                         win_rect.height + frame_thickness * 2 + titlebar_thickness);
  34
  35         parent->add_child(frame);
  36 }
  37
  38 void WindowManager::destroy_frame(Window *win)
  39 {
  40         Window *frame = win->parent;
  41         if(!frame) {
  42                 return;
  43         }
  44
  45         std::list<Window*>::iterator it;
  46         it = std::find(frames.begin(), frames.end(), frame);
  47         if(it != frames.end()) {
  48                 root_win->add_child(win);
  49                 frames.erase(it);
  50                 delete frame;
  51         }
  52 }
  53
  54 WindowManager::WindowManager()
  55 {
  56         if(!wm) {
  57                 wm = this;
  58         } else {
  59                 throw std::runtime_error("Trying to create a second instance of WindowManager!\n");
  60         }
  61
  62         root_win = new Window;
  63         root_win->resize(get_screen_size().width, get_screen_size().height);
  64         root_win->move(0, 0);
  65         root_win->set_managed(false);
  66
  67         focused_win = 0;
  68
  69         bg_color[0] = 210;
  70         bg_color[1] = 106;
  71         bg_color[2] = 106;
  72
  73         frame_thickness = 2;
  74         titlebar_thickness = 4;
  75
  76         frame_fcolor[0] = frame_fcolor[1] = frame_fcolor[2] = 142;
  77         frame_ucolor[0] = frame_ucolor[1] = frame_ucolor[2] = 210;
  78
  79         mouse_cursor.set_image(mouse_cursor_width, mouse_cursor_height);
  80         unsigned char *pixels = mouse_cursor.get_image();
  81
  82         for(int i=0; i<mouse_cursor_height; i++) {
  83                 for(int j=0; j<mouse_cursor_width; j++) {
  84                         int val = mouse_cursor_bw[i * mouse_cursor_width + j];
  85                         *pixels++ = val;
  86                         *pixels++ = val;
  87                         *pixels++ = val;
  88                         *pixels++ = 255;
  89                 }
  90         }
  91 }
  92
  93 WindowManager::~WindowManager()
  94 {
  95         delete root_win;
  96 }
  97
  98 void WindowManager::invalidate_region(const Rect &rect)
  99 {
 100         dirty_rects.push_back(rect);
 101 }
 102
 103 void WindowManager::process_windows()
 104 {
 105         if(dirty_rects.empty()) {
 106                 return;
 107         }
 108
 109         std::list<Rect>::iterator drit = dirty_rects.begin();
 110         Rect uni = *drit++;
 111         while(drit != dirty_rects.end()) {
 112                 uni = rect_union(uni, *drit++);
 113         }
 114         dirty_rects.clear();
 115
 116         fill_rect(uni, bg_color[0], bg_color[1], bg_color[2]);
 117
 118         root_win->draw_children(uni);
 119
 120         // draw mouse cursor
 121         int mouse_x, mouse_y;
 122         get_pointer_pos(&mouse_x, &mouse_y);
 123
 124         blit_key(mouse_cursor.get_image(), mouse_cursor.get_rect(),
 125                         get_framebuffer(), get_screen_size(), mouse_x, mouse_y,
 126                         0, 0, 0);
 127
 128         Rect mouse_rect = {mouse_x, mouse_y, mouse_cursor.get_width(), mouse_cursor.get_height()};
 129         invalidate_region(mouse_rect);
 130 }
 131
 132 void WindowManager::add_window(Window *win)
 133 {
 134         if(!win || win == root_win) {
 135                 return;
 136         }
 137
 138         root_win->add_child(win);
 139
 140         if(windows.empty()) {
 141                 focused_win = win;
 142         }
 143
 144         if(win->get_managed()) {
 145                 create_frame(win);
 146         }
 147
 148         windows.push_back(win);
 149 }
 150
 151 void WindowManager::remove_window(Window *win)
 152 {
 153         std::list<Window*>::iterator it;
 154         it = std::find(windows.begin(), windows.end(), win);
 155
 156         if(it != windows.end()) {
 157                 windows.erase(it);
 158         }
 159 }
 160
 161 void WindowManager::set_focused_window(Window *win)
 162 {
 163         focused_win = win;
 164 }
 165
 166 const Window *WindowManager::get_focused_window() const
 167 {
 168         return focused_win;
 169 }
 170
 171 Window *WindowManager::get_focused_window()
 172 {
 173         return focused_win;
 174 }
 175
 176 Window *WindowManager::get_window_at_pos(int pointer_x, int pointer_y)
 177 {
 178         Window *win = 0;
 179         std::list<Window*>::reverse_iterator rit = windows.rbegin();
 180         while(rit != windows.rend()) {
 181                 if((*rit)->contains_point(pointer_x, pointer_y)) {
 182                         win = *rit;
 183                         break;
 184                 }
 185                 rit++;
 186         }
 187
 188         return win;
 189 }
 190
 191 static void display(Window *win)
 192 {
 193         if(win->get_managed()) {
 194                 fill_rect(win->get_rect(), 255, 211, 5);
 195                 win->draw(win->get_parent()->get_rect());
 196         }
 197 }
 198
 199 //static void mouse(Window *win, int key, bool pressed);
 200 //static void motion(Window *win, int x, int y);