Initial commit

src/k3menu.h

@@ -0,0 +1,127 @@
+#pragma once
+
+#include<stdint.h>
+#include<stdlib.h>
+#include<stdbool.h>
+#include"k3font.h"
+
+struct k3MObj;
+
+#define k3M_EVENT_MOUSE_ENTER 0
+#define k3M_EVENT_MOUSE_MOTION 1
+#define k3M_EVENT_MOUSE_LEAVE 2
+#define k3M_EVENT_MOUSE_PRESS 3
+#define k3M_EVENT_MOUSE_RELEASE 4
+#define k3M_EVENT_MOUSE_CLICK 5
+#define k3M_EVENT_KEY_PRESS 6
+#define k3M_EVENT_KEY_RELEASE 7
+#define k3M_EVENT_INPUT 8
+#define k3M_EVENT_DRAW 9
+#define k3M_EVENT_COMPLETE 10
+#define k3M_EVENT_ALL 11
+
+#define k3M_MOUSE_BUTTON_0 0
+#define k3M_MOUSE_BUTTON_1 1
+#define k3M_MOUSE_BUTTON_2 2
+
+#define k3M_EVENTKIND_DIRECT 0
+#define k3M_EVENTKIND_CAPTURE 1
+#define k3M_EVENTKIND_BUBBLE 2
+
+#define k3M_USERDATA_SIZE 16
+
+struct k3MEvent {
+	uint16_t code;
+	
+	uint8_t kind;
+	
+	struct k3MObj *original;
+	struct k3MObj *target;
+	
+	union {
+		struct {
+			int button;
+			int16_t x;
+			int16_t y;
+		} mouse;
+		struct {
+			uint32_t num;
+		} key;
+		struct {
+			uint32_t code;
+		} input;
+	};
+};
+
+typedef bool(*k3MEventHandlerFunc)(struct k3MEvent*, uint8_t *ud);
+
+typedef struct k3MEventHandler {
+	uint8_t ud[k3M_USERDATA_SIZE];
+	k3MEventHandlerFunc callback;
+	uint16_t code;
+} k3MEventHandler;
+
+struct k3MObj {
+	struct k3MObj *parent;
+	
+	size_t childCount;
+	struct k3MObj **children;
+	
+	int16_t x;
+	int16_t y;
+	int16_t w;
+	int16_t h;
+	
+	bool invisible, hovered, disabled;
+	
+	k3MEventHandler *handlers;
+	size_t handlerCount;
+};
+
+#define k3MenuSetBounds(a, x, y, w, h) k3MenuSetBounds_((struct k3MObj*) (a), (x), (y), (w), (h))
+void k3MenuSetBounds_(struct k3MObj *this, int16_t x, int16_t y, int16_t w, int16_t h);
+
+#define k3MRegisterEventHandler(a, c, cb, ud, udsz) k3MRegisterEventHandler_((struct k3MObj*) (a), (c), (cb), (ud), (udsz))
+int k3MRegisterEventHandler_(struct k3MObj *obj, uint16_t evcode, k3MEventHandlerFunc callback, uint8_t *ud, size_t udSize);
+
+bool k3MEventSend(struct k3MEvent *ev);
+
+int k3MRemoveChild(struct k3MObj *parent, struct k3MObj *child);
+void k3MAddChild(struct k3MObj *parent, struct k3MObj *child);
+
+struct k3MLabel {
+	struct k3MObj;
+	
+	struct k3Font *font;
+	float sz;
+	char *txt;
+};
+struct k3MLabel *k3MLabel(struct k3Font *font, float sz, const char *txt);
+
+struct k3MScreen {
+	struct k3MObj;
+	
+	struct k3MObj *keyboardFocus;
+};
+struct k3MScreen *k3MScreen();
+
+struct k3MTextButton {
+	struct k3MObj;
+	
+	struct k3Font *font;
+	float sz;
+	char *txt;
+};
+struct k3MTextButton *k3MTextButton(struct k3Font *font, float sz, const char *txt);
+
+struct k3MTextInput {
+	struct k3MObj;
+	
+	struct k3Font *font;
+	float sz;
+	
+	char *placeholder;
+	
+	char *txt;
+};
+struct k3MTextInput *k3MTextInput(struct k3Font *font, float sz, const char *placeholder, const char *txt);