+/*
+ * AxWin3 Interface Library
+ * - By John Hodge (thePowersGang)
+ *
+ * r_widget.c
+ * - Widget window type interface
+ */
+#include <axwin3/axwin.h>
+#include <axwin3/widget.h>
+#include "include/internal.h"
+#include <stdlib.h>
+#include <widget_messages.h>
+#include <string.h>
+
+// === STRUCTURES ===
+struct sAxWin3_Widget
+{
+ tHWND Window;
+ uint32_t ID;
+ // Callbacks
+ tAxWin3_Widget_FireCb Fire;
+ tAxWin3_Widget_KeyUpDownCb KeyUpDown;
+ tAxWin3_Widget_KeyFireCb KeyFire;
+ tAxWin3_Widget_MouseMoveCb MouseMove;
+ tAxWin3_Widget_MouseBtnCb MouseButton;
+};
+
+typedef struct
+{
+ int nElements;
+ tAxWin3_Widget **Elements;
+ int FirstFreeID;
+ tAxWin3_Widget RootElement;
+ // Callbacks for each element
+} tWidgetWindowInfo;
+
+// === CODE ===
+tAxWin3_Widget *AxWin3_Widget_int_GetElementByID(tHWND Window, uint32_t ID)
+{
+ tWidgetWindowInfo *info;
+ if(!Window) return NULL;
+
+ info = AxWin3_int_GetDataPtr(Window);
+ if(ID >= info->nElements) return NULL;
+
+ return info->Elements[ID];
+}
+
+int AxWin3_Widget_MessageHandler(tHWND Window, int MessageID, int Size, void *Data)
+{
+ tAxWin3_Widget *widget;
+
+ switch(MessageID)
+ {
+ case MSG_WIDGET_FIRE: {
+ tWidgetMsg_Fire *msg = Data;
+ if(Size < sizeof(*msg)) return -1;
+ widget = AxWin3_Widget_int_GetElementByID(Window, msg->WidgetID);
+ if(widget->Fire) widget->Fire(widget);
+
+ return 0; }
+ default:
+ return 0;
+ }
+}
+
+tHWND AxWin3_Widget_CreateWindow(tHWND Parent, int W, int H, int RootEleFlags)
+{
+ tHWND ret;
+ tWidgetWindowInfo *info;
+
+ ret = AxWin3_CreateWindow(
+ Parent, "Widget", RootEleFlags,
+ sizeof(*info) + sizeof(tAxWin3_Widget), AxWin3_Widget_MessageHandler
+ );
+ info = AxWin3_int_GetDataPtr(ret);
+
+ info->RootElement.Window = ret;
+ info->RootElement.ID = -1;
+
+ AxWin3_ResizeWindow(ret, W, H);
+
+ return ret;
+}
+
+void AxWin3_Widget_DestroyWindow(tHWND Window)
+{
+ // Free all element structures
+
+ // Free array
+
+ // Request window to be destroyed (will clean up any data stored in tHWND)
+}
+
+tAxWin3_Widget *AxWin3_Widget_GetRoot(tHWND Window)
+{
+ tWidgetWindowInfo *info = AxWin3_int_GetDataPtr(Window);
+ return &info->RootElement;
+}
+
+tAxWin3_Widget *AxWin3_Widget_AddWidget(tAxWin3_Widget *Parent, int Type, int Flags, const char *DebugName)
+{
+ int newID;
+ tWidgetWindowInfo *info;
+ tAxWin3_Widget *ret;
+
+ if(!Parent) return NULL;
+
+ info = AxWin3_int_GetDataPtr(Parent->Window);
+
+ // Assign ID
+ // BUG BUG BUG - Double Allocations!
+ // TODO: Atomicity
+ for( newID = info->FirstFreeID; newID < info->nElements; newID ++ )
+ {
+ if( info->Elements[newID] == NULL )
+ break;
+ }
+ if( newID == info->nElements )
+ {
+ const int size_step = 4;
+ info->nElements += 4;
+ info->Elements = realloc(info->Elements, sizeof(*info->Elements)*info->nElements);
+ newID = info->nElements - 4;
+ memset( &info->Elements[newID+1], 0, (size_step-1)*sizeof(info->Elements));
+ _SysDebug("Expanded to %i and allocated %i", info->nElements, newID);
+ }
+ else
+ _SysDebug("Allocated %i", newID);
+ info->Elements[newID] = (void*)-1;
+
+ // Create new widget structure
+ ret = calloc(sizeof(tAxWin3_Widget), 1);
+ ret->Window = Parent->Window;
+ ret->ID = newID;
+
+ info->Elements[newID] = ret;
+
+ // Send create widget message
+ {
+ char tmp[sizeof(tWidgetMsg_Create)+1];
+ tWidgetMsg_Create *msg = (void*)tmp;
+ msg->Parent = Parent->ID;
+ msg->NewID = newID;
+ msg->Type = Type;
+ msg->Flags = Flags;
+ msg->DebugName[0] = '\0';
+ AxWin3_SendMessage(ret->Window, ret->Window, MSG_WIDGET_CREATE, sizeof(tmp), tmp);
+ }
+
+ return ret;
+}
+
+void AxWin3_Widget_DelWidget(tAxWin3_Widget *Widget)
+{
+ tWidgetMsg_Delete msg;
+ tWidgetWindowInfo *info = AxWin3_int_GetDataPtr(Widget->Window);
+
+ msg.WidgetID = Widget->ID;
+ AxWin3_SendMessage(Widget->Window, Widget->Window, MSG_WIDGET_DELETE, sizeof(msg), &msg);
+
+ info->Elements[Widget->ID] = NULL;
+ if(Widget->ID < info->FirstFreeID)
+ info->FirstFreeID = Widget->ID;
+ free(Widget);
+}
+
+// --- Callbacks
+void AxWin3_Widget_SetFireHandler(tAxWin3_Widget *Widget, tAxWin3_Widget_FireCb Callback)
+{
+ if(!Widget) return;
+ Widget->Fire = Callback;
+}
+
+void AxWin3_Widget_SetKeyHandler(tAxWin3_Widget *Widget, tAxWin3_Widget_KeyUpDownCb Callback)
+{
+ if(!Widget) return;
+ Widget->KeyUpDown = Callback;
+}
+
+void AxWin3_Widget_SetKeyFireHandler(tAxWin3_Widget *Widget, tAxWin3_Widget_KeyFireCb Callback)
+{
+ if(!Widget) return;
+ Widget->KeyFire = Callback;
+}
+
+void AxWin3_Widget_SetMouseMoveHandler(tAxWin3_Widget *Widget, tAxWin3_Widget_MouseMoveCb Callback)
+{
+ if(!Widget) return;
+ Widget->MouseMove = Callback;
+}
+
+void AxWin3_Widget_SetMouseButtonHandler(tAxWin3_Widget *Widget, tAxWin3_Widget_MouseBtnCb Callback)
+{
+ if(!Widget) return;
+ Widget->MouseButton = Callback;
+}
+
+// --- Manipulation
+void AxWin3_Widget_SetFlags(tAxWin3_Widget *Widget, int FlagSet, int FlagMask)
+{
+ tWidgetMsg_SetFlags msg;
+ msg.WidgetID = Widget->ID;
+ msg.Value = FlagSet;
+ msg.Mask = FlagMask;
+
+ AxWin3_SendMessage(Widget->Window, Widget->Window, MSG_WIDGET_SETFLAGS, sizeof(msg), &msg);
+}
+
+void AxWin3_Widget_SetSize(tAxWin3_Widget *Widget, int Size)
+{
+ tWidgetMsg_SetSize msg;
+
+ msg.WidgetID = Widget->ID;
+ msg.Value = Size;
+ AxWin3_SendMessage(Widget->Window, Widget->Window, MSG_WIDGET_SETSIZE, sizeof(msg), &msg);
+}
+
+void AxWin3_Widget_SetText(tAxWin3_Widget *Widget, const char *Text)
+{
+ char buf[sizeof(tWidgetMsg_SetText) + strlen(Text) + 1];
+ tWidgetMsg_SetText *msg = (void*)buf;
+
+ msg->WidgetID = Widget->ID;
+ strcpy(msg->Text, Text);
+
+ AxWin3_SendMessage(Widget->Window, Widget->Window, MSG_WIDGET_SETTEXT, sizeof(buf), buf);
+}
+
+char *AxWin3_Widget_GetText(tAxWin3_Widget *Widget)
+{
+ char buf[sizeof(tWidgetMsg_SetText)];
+ tWidgetMsg_SetText *msg = (void*)buf;
+ size_t retmsg_size;
+
+ msg->WidgetID = Widget->ID;
+
+ AxWin3_SendMessage(Widget->Window, Widget->Window, MSG_WIDGET_GETTEXT, sizeof(buf), buf);
+
+ msg = AxWin3_WaitMessage(Widget->Window, MSG_WIDGET_GETTEXT, &retmsg_size);
+ if( retmsg_size < sizeof(*msg) ) {
+ free(msg);
+ return NULL;
+ }
+
+ char *ret = strndup(msg->Text, retmsg_size - sizeof(*msg));
+ free(msg);
+ return ret;
+}
+
+void AxWin3_Widget_SetColour(tAxWin3_Widget *Widget, int Index, tAxWin3_Colour Colour)
+{
+ tWidgetMsg_SetColour msg;
+
+ msg.WidgetID = Widget->ID;
+ msg.Index = Index;
+ msg.Colour = Colour;
+ AxWin3_SendMessage(Widget->Window, Widget->Window, MSG_WIDGET_SETCOLOUR, sizeof(msg), &msg);
+}
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