- pridany kapov patch na klavesy

- widget na nastavovanie klaves sa rozsvieti, ked je aktivny



git-svn-id: http://opensvn.csie.org/tuxanci_ng@189 0ee4d065-81f0-4d1e-b06c-ff20ad07cc3e

1 files changed, 138 insertions, 0 deletions

diff --git a/src/client/keyboardBuffer.c b/src/client/keyboardBuffer.c
new file mode 100644
index 0000000..29cd9d4
--- /dev/null
+++ b/src/client/keyboardBuffer.c
@@ -0,0 +1,138 @@
+/*
+ * keyboardBuffer.c
+ *
+ *  Created on: 1.8.2008
+ *      Author: Karel Podvolecky
+ *
+ *  Jednoducha fronta stisknutych klaves.
+ *
+ */
+
+#include <stdio.h>
+#include <assert.h>
+#include <SDL.h>
+
+#include "keyboardBuffer.h"
+
+static keyboardBuffer_t *keyboardBuffer=NULL;
+
+static SDL_keysym emptyKey;
+
+/*
+ * Inicializuje klavesovy buffer. Parametr udava pocet klaves.
+ */
+void initKeyboardBuffer(uint32_t size){
+	assert(size>0);
+	assert(keyboardBuffer==NULL);
+
+	keyboardBuffer = malloc(sizeof(keyboardBuffer_t));
+	assert(keyboardBuffer!=NULL);
+	memset(keyboardBuffer, 0, sizeof(keyboardBuffer_t));
+
+	keyboardBuffer->buff = malloc(size * sizeof(SDL_keysym));
+	assert(keyboardBuffer->buff!=NULL);
+	memset(keyboardBuffer->buff, 0, size * sizeof(SDL_keysym));
+
+	keyboardBuffer->begin=0;
+	keyboardBuffer->end=0;
+	keyboardBuffer->count=0;
+	keyboardBuffer->size=size;
+
+	emptyKey.sym = SDLK_UNKNOWN;
+}
+
+/*
+ * Vyprazdni buffer.
+ */
+void clearKeyboardBuffer(){
+	assert(keyboardBuffer!=NULL);
+
+	keyboardBuffer->begin=0;
+	keyboardBuffer->end=0;
+	keyboardBuffer->count=0;
+	memset(keyboardBuffer->buff, 0, keyboardBuffer->size * sizeof(SDL_keysym));
+}
+
+/*
+ * Prida klavesu na konec bufferu. Pokud je buffer preplnen,
+ * vypise chybu na chybovy vystup a klavesu zahodi.
+ */
+bool_t pushKeyToKeyboardBuffer(SDL_keysym key){
+	assert(keyboardBuffer!=NULL);
+
+	if (keyboardBuffer->count >= keyboardBuffer->size){
+		fprintf(stderr, "Preteceni klavesoveho bufferu! Zahazuji klavesu: %02x\n", key.sym);
+		return FALSE;
+	}
+
+	keyboardBuffer->buff[keyboardBuffer->end] = key;
+
+	keyboardBuffer->end++;
+	if (keyboardBuffer->end>=keyboardBuffer->size)
+		keyboardBuffer->end=0;
+
+	keyboardBuffer->count++;
+
+	return TRUE;
+}
+
+/*
+ * Vyjme prvni klavesu z bufferu a vrati ji. Pokud je buffer prazdny,
+ * vypise chybu na chybovy  vystup a vrati SDLK_UNKNOWN
+ */
+SDL_keysym popKeyFromKeyboardBuffer(){
+	assert(keyboardBuffer!=NULL);
+
+	if (keyboardBuffer->count <= 0){
+		fprintf(stderr, "Podteceni klavesoveho bufferu!\n");
+		return emptyKey;
+	}
+
+	SDL_keysym key = keyboardBuffer->buff[keyboardBuffer->begin];
+	keyboardBuffer->buff[keyboardBuffer->begin]=emptyKey;
+
+	keyboardBuffer->begin++;
+	if (keyboardBuffer->begin>=keyboardBuffer->size)
+		keyboardBuffer->begin=0;
+
+	keyboardBuffer->count--;
+
+	return key;
+}
+
+/*
+ * Velikost bufferu.
+ */
+uint32_t getKeyboardBufferSize(){
+	assert(keyboardBuffer!=NULL);
+	return keyboardBuffer->size;
+}
+
+/*
+ * Pocet klaves v bufferu.
+ */
+uint32_t KeyboardBufferCount(){
+	assert(keyboardBuffer!=NULL);
+	return keyboardBuffer->count;
+}
+
+
+bool_t isAnyKeyInKeyboardBuffer(){
+	return KeyboardBufferCount()>0 ? TRUE : FALSE;
+}
+
+/*
+ * Uvolni buffer. Pokud neni prazdny, vypise predtim
+ * info o zaplneni na chybovy vystup.
+ */
+void quitKeyboardBuffer(){
+	assert(keyboardBuffer!=NULL);
+
+	if (keyboardBuffer->count>0){
+		fprintf(stderr, "Klavesovy buffer neni prazdny!\n");
+	}
+
+	free(keyboardBuffer->buff);
+	free(keyboardBuffer);
+	keyboardBuffer=NULL;
+}