Widgets.

src/defs.h

@@ -79,6 +79,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define JUMP_POWER					1
 #define MAX_KEY_TYPES				12
 
+#define MAX_WIDGET_OPTIONS			8
+
 #define ET_ENEMY					0
 #define ET_KEY						1
 #define ET_MIA						2
@@ -218,3 +220,10 @@ enum
 	CH_WEAPON,
 	CH_MAX
 };
+
+enum
+{
+	WT_BUTTON,
+	WT_SPINNER,
+	WT_PLAIN_BUTTON
+};

src/structs.h

@@ -29,6 +29,7 @@ typedef struct Particle Particle;
 typedef struct Sprite Sprite;
 typedef struct Tuple Tuple;
 typedef struct HubMission HubMission;
+typedef struct Widget Widget;
 
 typedef struct {
 	int debug;
@@ -295,3 +296,20 @@ typedef struct {
 	Objective objectiveHead, *objectiveTail;
 	Trigger triggerHead, *triggerTail;
 } World;
+
+struct Widget {
+	int type;
+	int x;
+	int y;
+	int w;
+	int h;
+	int visible;
+	int enabled;
+	char name[MAX_NAME_LENGTH];
+	char group[MAX_NAME_LENGTH];
+	char label[MAX_NAME_LENGTH];
+	char options[MAX_WIDGET_OPTIONS][MAX_NAME_LENGTH];
+	int value;
+	int clicked;
+	Widget *next;
+};

src/widgets/widgets.c

@@ -20,6 +20,130 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "widgets.h"
 
-void showWidgetGroup(char *groupName)
+Widget *getWidgetAt(int x, int y);
+
+static Widget widgetHead;
+static Widget *widgetTail;
+static Widget *selectedWidget;
+
+void initWidgets(void)
+{
+	memset(&widgetHead, 0, sizeof(Widget));
+	widgetTail = &widgetHead;
+}
+
+Widget *getWidget(char *name, char *group)
+{
+	Widget *w;
+	
+	for (w = widgetHead.next ; w != NULL ; w = w->next)
+	{
+		if (strcmp(w->name, name) == 0 && strcmp(w->group, group) == 0)
+		{
+			return w;
+		}
+	}
+	
+	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "No such widget '%s', '%s'", name, group);
+	exit(1);
+
+	return NULL;
+}
+
+void handleWidgetClick(int x, int y)
+{
+	Widget *w;
+	
+	w = getWidgetAt(x, y);
+
+	if (w != NULL)
+	{
+		if (w->type == WT_SPINNER)
+		{
+			w->value++;
+			
+			w->value %= MAX_WIDGET_OPTIONS;
+		}
+
+		w->clicked = 1;
+	}
+}
+
+void activeSelected(void)
+{
+	if (selectedWidget->type == WT_SPINNER)
+	{
+		selectedWidget->value++;
+		
+		selectedWidget->value %= MAX_WIDGET_OPTIONS;
+	}
+
+	selectedWidget->clicked = 1;
+}
+
+Widget *getWidgetAt(int x, int y)
+{
+	Widget *w;
+	
+	for (w = widgetHead.next ; w != NULL ; w = w->next)
+	{
+		if (w->visible && w->enabled && collision(x, y, 1, 1, w->x - (w->w / 2), w->y, w->w, w->h))
+		{
+			return w;
+		}
+	}
+
+	return NULL;
+}
+
+void hideAll(void)
+{
+	Widget *w;
+	
+	for (w = widgetHead.next ; w != NULL ; w = w->next)
+	{
+		w->visible = 0;
+	}
+
+	selectedWidget = NULL;
+}
+
+void showWidgetGroup(char *group)
+{
+	Widget *w;
+	
+	hideAll();
+	
+	for (w = widgetHead.next ; w != NULL ; w = w->next)
+	{
+		if (strcmp(w->group, group) == 0)
+		{
+			if (selectedWidget == NULL)
+			{
+				selectedWidget = w;
+			}
+
+			w->visible = 1;
+		}
+	}
+}
+
+int wasWidgetClicked(Widget *w)
+{
+	int wasClicked;
+	
+	wasClicked = w->clicked;
+
+	w->clicked = 0;
+
+	return wasClicked;
+}
+
+void loadWidgets(char *filename)
+{
+	
+}
+
+void destroy(void)
 {
 }

src/widgets/widgets.h

@@ -19,3 +19,5 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../common.h"
+
+extern int collision(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2);