Usermode/Applications/axwin3_src/WM/wm.c

   1 /*
   2  * Acess2 Window Manager v3
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * wm.c
   6  * - Window manager core
   7  */
   8 #include <common.h>
   9 #include <wm_renderer.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12
  13 // === GLOBALS ===
  14 tWMRenderer     *gpWM_Renderers;
  15
  16 // === CODE ===
  17 void WM_RegisterRenderer(tWMRenderer *Renderer)
  18 {
  19         // TODO: Catch out duplicates
  20         Renderer->Next = gpWM_Renderers;
  21         gpWM_Renderers = Renderer;
  22 }
  23
  24 tWindow *WM_CreateWindow(tWindow *Parent, int Flags, const char *RendererName)
  25 {
  26         tWMRenderer     *renderer;
  27         tWindow *ret;
  28
  29         // - Get Renderer
  30         for( renderer = gpWM_Renderers; renderer; renderer = renderer->Next )
  31         {
  32                 if(strcmp(RendererName, renderer->Name) == 0)
  33                         break;
  34         }
  35         if(renderer == NULL)
  36                 return NULL;
  37
  38         // - Call create window function
  39         ret = renderer->CreateWindow(Flags);
  40
  41         // - Fill common fields on that
  42         ret->Flags = Flags;
  43
  44         // - Return!
  45         return ret;
  46 }
  47
  48 tWindow *WM_CreateWindowStruct(size_t ExtraSize)
  49 {
  50         return calloc( sizeof(tWindow) + ExtraSize, 1 );
  51 }
  52
  53 void WM_Update(void)
  54 {
  55         // - Iterate through visible windows, updating them as needed
  56
  57         // - Draw windows from back to front to the render buffer
  58
  59         // - Blit the buffer to the screen
  60 }
  61
  62 void WM_Render_FilledRect(tWindow *Window, tColour Colour, int X, int Y, int W, int H)
  63 {
  64         // Clip to window dimensions
  65         if(X < 0) { W += X; X = 0; }
  66         if(Y < 0) { H += Y; Y = 0; }
  67         if(X >= Window->W)      return;
  68         if(Y >= Window->H)      return;
  69         if(X + W > Window->W)   W = Window->W - X;
  70         if(Y + H > Window->H)   H = Window->H - Y;
  71
  72         // Render to buffer
  73         // Create if needed?
  74
  75         UNIMPLEMENTED();
  76 }
  77