htop/FunctionBar.c

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/*
htop - FunctionBar.c
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(C) 2004-2011 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "Object.h"
#include "FunctionBar.h"
#include "CRT.h"
#include "debug.h"
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include <curses.h>
/*{
typedef struct FunctionBar_ {
Object super;
int size;
char** functions;
char** keys;
int* events;
bool staticData;
} FunctionBar;
}*/
#ifdef DEBUG
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char* FUNCTIONBAR_CLASS = "FunctionBar";
#else
#define FUNCTIONBAR_CLASS NULL
#endif
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static const char* FunctionBar_FKeys[] = {"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", NULL};
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static const char* FunctionBar_FLabels[] = {" ", " ", " ", " ", " ", " ", " ", " ", " ", " ", NULL};
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static int FunctionBar_FEvents[] = {KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10)};
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FunctionBar* FunctionBar_new(const char** functions, const char** keys, int* events) {
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FunctionBar* this = malloc(sizeof(FunctionBar));
Object_setClass(this, FUNCTIONBAR_CLASS);
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((Object*) this)->delete = FunctionBar_delete;
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this->functions = (char**) functions;
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if (keys && events) {
this->staticData = false;
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this->functions = malloc(sizeof(char*) * 15);
this->keys = malloc(sizeof(char*) * 15);
this->events = malloc(sizeof(int) * 15);
int i = 0;
while (i < 15 && functions[i]) {
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this->functions[i] = strdup(functions[i]);
this->keys[i] = strdup(keys[i]);
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this->events[i] = events[i];
i++;
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}
this->size = i;
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} else {
this->staticData = true;
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this->functions = (char**)( functions ? functions : FunctionBar_FLabels );
this->keys = (char**) FunctionBar_FKeys;
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this->events = FunctionBar_FEvents;
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this->size = 10;
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}
return this;
}
void FunctionBar_delete(Object* cast) {
FunctionBar* this = (FunctionBar*) cast;
if (!this->staticData) {
for (int i = 0; i < this->size; i++) {
free(this->functions[i]);
free(this->keys[i]);
}
free(this->functions);
free(this->keys);
free(this->events);
}
free(this);
}
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void FunctionBar_setLabel(FunctionBar* this, int event, const char* text) {
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assert(!this->staticData);
for (int i = 0; i < this->size; i++) {
if (this->events[i] == event) {
free(this->functions[i]);
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this->functions[i] = strdup(text);
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break;
}
}
}
void FunctionBar_draw(const FunctionBar* this, char* buffer) {
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FunctionBar_drawAttr(this, buffer, CRT_colors[FUNCTION_BAR]);
}
void FunctionBar_drawAttr(const FunctionBar* this, char* buffer, int attr) {
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attrset(CRT_colors[FUNCTION_BAR]);
mvhline(LINES-1, 0, ' ', COLS);
int x = 0;
for (int i = 0; i < this->size; i++) {
attrset(CRT_colors[FUNCTION_KEY]);
mvaddstr(LINES-1, x, this->keys[i]);
x += strlen(this->keys[i]);
attrset(CRT_colors[FUNCTION_BAR]);
mvaddstr(LINES-1, x, this->functions[i]);
x += strlen(this->functions[i]);
}
if (buffer) {
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attrset(attr);
mvaddstr(LINES-1, x, buffer);
CRT_cursorX = x + strlen(buffer);
curs_set(1);
} else {
curs_set(0);
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}
attrset(CRT_colors[RESET_COLOR]);
}
int FunctionBar_synthesizeEvent(const FunctionBar* this, int pos) {
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int x = 0;
for (int i = 0; i < this->size; i++) {
x += strlen(this->keys[i]);
x += strlen(this->functions[i]);
if (pos < x) {
return this->events[i];
}
}
return ERR;
}