Usermode/Applications/axwin3_src/libaxwin3.so_src/r_widget.c

   1 /*
   2  * AxWin3 Interface Library
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * main.c
   6  * - Entrypoint and setup
   7  */
   8 #include <axwin3/axwin.h>
   9 #include <axwin3/widget.h>
  10 #include "include/internal.h"
  11 #include <stdlib.h>
  12 #include <widget_messages.h>
  13
  14 // === STRUCTURES ===
  15 struct sAxWin3_Widget
  16 {
  17         tHWND   Window;
  18         uint32_t        ID;
  19         tAxWin3_Widget_Callback Callback;
  20 };
  21
  22 typedef struct
  23 {
  24          int    nElements;
  25         tAxWin3_Widget  **Elements;
  26          int    FirstFreeID;
  27         // Callbacks for each element
  28 } tWidgetWindowInfo;
  29
  30 // === CODE ===
  31 int AxWin3_Widget_MessageHandler(tHWND Window, int Size, void *Data)
  32 {
  33         return 0;
  34 }
  35
  36 tHWND AxWin3_Widget_CreateWindow(tHWND Parent, int W, int H, int RootEleFlags)
  37 {
  38         tHWND   ret;
  39         tWidgetWindowInfo       *info;
  40
  41         ret = AxWin3_CreateWindow(
  42                 Parent, "Widget", RootEleFlags,
  43                 sizeof(*info) + sizeof(tAxWin3_Widget), AxWin3_Widget_MessageHandler
  44                 );
  45         info = AxWin3_int_GetDataPtr(ret);
  46
  47         info->nElements = 1;
  48         info->Elements = malloc(sizeof(tAxWin3_Widget*));
  49         info->Elements[0] = (void*)(info + 1);  // Get end of *info
  50         info->FirstFreeID = 1;
  51
  52         AxWin3_ResizeWindow(ret, W, H);
  53
  54         return ret;
  55 }
  56
  57 void AxWin3_Widget_DestroyWindow(tHWND Window)
  58 {
  59         // Free all element structures
  60
  61         // Free array
  62
  63         // Request window to be destroyed (will clean up any data stored in tHWND)
  64 }
  65
  66 tAxWin3_Widget *AxWin3_Widget_GetRoot(tHWND Window)
  67 {
  68         tWidgetWindowInfo       *info = AxWin3_int_GetDataPtr(Window);
  69         return info->Elements[0];
  70 }
  71
  72 tAxWin3_Widget *AxWin3_Widget_AddWidget(tAxWin3_Widget *Parent, int Type, int Flags, const char *DebugName)
  73 {
  74          int    newID;
  75         tWidgetWindowInfo       *info;
  76         tAxWin3_Widget  *ret;
  77
  78         if(!Parent)     return NULL;
  79
  80         info = AxWin3_int_GetDataPtr(Parent->Window);
  81
  82         // Assign ID
  83         // TODO: Atomicity
  84         for( newID = info->FirstFreeID; newID < info->nElements; newID ++ )
  85         {
  86                 if( info->Elements[newID] == NULL )
  87                         break;
  88         }
  89         if( info->Elements[newID] )
  90         {
  91                 info->nElements ++;
  92                 info->Elements = realloc(info->Elements, sizeof(*info->Elements)*info->nElements);
  93                 newID = info->nElements - 1;
  94         }
  95         info->Elements[newID] = (void*)-1;
  96
  97         // Create new widget structure
  98         ret = malloc(sizeof(tAxWin3_Widget));
  99         ret->Window = Parent->Window;
 100         ret->ID = newID;
 101         ret->Callback = NULL;
 102
 103         info->Elements[newID] = ret;
 104
 105         // Send create widget message
 106         {
 107                 char    tmp[sizeof(tWidgetMsg_Create)+1];
 108                 tWidgetMsg_Create       *msg = (void*)tmp;
 109                 msg->Parent = Parent->ID;
 110                 msg->NewID = newID;
 111                 msg->DebugName[0] = '\0';
 112                 AxWin3_SendMessage(ret->Window, ret->Window, MSG_WIDGET_CREATE, sizeof(tmp), tmp);
 113         }
 114
 115         return ret;
 116 }