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/*
htop
(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "ScreenManager.h"
#include "Panel.h"
#include "Object.h"
#include "Vector.h"
#include "Header.h"
#include "FunctionBar.h"
#include "debug.h"
#include <assert.h>
#include <time.h>
#include <stdbool.h>
/*{
typedef enum Orientation_ {
VERTICAL,
HORIZONTAL
} Orientation;
typedef struct ScreenManager_ {
int x1;
int y1;
int x2;
int y2;
Orientation orientation;
Vector* items;
Vector* fuBars;
int itemCount;
const FunctionBar* fuBar;
const Header* header;
time_t lastScan;
bool owner;
} ScreenManager;
}*/
ScreenManager* ScreenManager_new(int x1, int y1, int x2, int y2, Orientation orientation, const Header* header, bool owner) {
ScreenManager* this;
this = malloc(sizeof(ScreenManager));
this->x1 = x1;
this->y1 = y1;
this->x2 = x2;
this->y2 = y2;
this->fuBar = NULL;
this->orientation = orientation;
this->items = Vector_new(PANEL_CLASS, owner, DEFAULT_SIZE, NULL);
this->fuBars = Vector_new(FUNCTIONBAR_CLASS, true, DEFAULT_SIZE, NULL);
this->itemCount = 0;
this->header = header;
this->owner = owner;
return this;
}
void ScreenManager_delete(ScreenManager* this) {
Vector_delete(this->items);
Vector_delete(this->fuBars);
free(this);
}
inline int ScreenManager_size(ScreenManager* this) {
return this->itemCount;
}
void ScreenManager_add(ScreenManager* this, Panel* item, FunctionBar* fuBar, int size) {
if (this->orientation == HORIZONTAL) {
int lastX = 0;
if (this->itemCount > 0) {
Panel* last = (Panel*) Vector_get(this->items, this->itemCount - 1);
lastX = last->x + last->w + 1;
}
if (size > 0) {
Panel_resize(item, size, LINES-this->y1+this->y2);
} else {
Panel_resize(item, COLS-this->x1+this->x2-lastX, LINES-this->y1+this->y2);
}
Panel_move(item, lastX, this->y1);
}
// TODO: VERTICAL
Vector_add(this->items, item);
if (fuBar)
Vector_add(this->fuBars, fuBar);
else
Vector_add(this->fuBars, FunctionBar_new(NULL, NULL, NULL));
if (!this->fuBar && fuBar) this->fuBar = fuBar;
item->needsRedraw = true;
this->itemCount++;
}
Panel* ScreenManager_remove(ScreenManager* this, int idx) {
assert(this->itemCount > idx);
Panel* panel = (Panel*) Vector_remove(this->items, idx);
Vector_remove(this->fuBars, idx);
this->fuBar = NULL;
this->itemCount--;
return panel;
}
void ScreenManager_resize(ScreenManager* this, int x1, int y1, int x2, int y2) {
this->x1 = x1;
this->y1 = y1;
this->x2 = x2;
this->y2 = y2;
int items = this->itemCount;
int lastX = 0;
for (int i = 0; i < items - 1; i++) {
Panel* panel = (Panel*) Vector_get(this->items, i);
Panel_resize(panel, panel->w, LINES-y1+y2);
Panel_move(panel, lastX, y1);
lastX = panel->x + panel->w + 1;
}
Panel* panel = (Panel*) Vector_get(this->items, items-1);
Panel_resize(panel, COLS-x1+x2-lastX, LINES-y1+y2);
Panel_move(panel, lastX, y1);
}
void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
bool quit = false;
int focus = 0;
Panel* panelFocus = (Panel*) Vector_get(this->items, focus);
if (this->fuBar)
FunctionBar_draw(this->fuBar, NULL);
this->lastScan = 0;
int ch = 0;
while (!quit) {
int items = this->itemCount;
if (this->header) {
time_t now = time(NULL);
if (now > this->lastScan) {
ProcessList_scan(this->header->pl);
this->lastScan = now;
}
Header_draw(this->header);
}
for (int i = 0; i < items; i++) {
Panel* panel = (Panel*) Vector_get(this->items, i);
Panel_draw(panel, i == focus);
if (i < items) {
if (this->orientation == HORIZONTAL) {
mvvline(panel->y, panel->x+panel->w, ' ', panel->h+1);
}
}
}
FunctionBar* bar = (FunctionBar*) Vector_get(this->fuBars, focus);
if (bar)
this->fuBar = bar;
if (this->fuBar)
FunctionBar_draw(this->fuBar, NULL);
ch = getch();
if (ch == KEY_MOUSE) {
MEVENT mevent;
int ok = getmouse(&mevent);
if (ok == OK) {
if (mevent.y == LINES - 1) {
ch = FunctionBar_synthesizeEvent(this->fuBar, mevent.x);
} else {
for (int i = 0; i < this->itemCount; i++) {
Panel* panel = (Panel*) Vector_get(this->items, i);
if (mevent.x > panel->x && mevent.x <= panel->x+panel->w &&
mevent.y > panel->y && mevent.y <= panel->y+panel->h) {
focus = i;
panelFocus = panel;
Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV - 1);
break;
}
}
}
}
}
if (panelFocus->eventHandler) {
HandlerResult result = panelFocus->eventHandler(panelFocus, ch);
if (result == HANDLED) {
continue;
} else if (result == BREAK_LOOP) {
quit = true;
continue;
}
}
switch (ch) {
case ERR:
continue;
case KEY_RESIZE:
{
ScreenManager_resize(this, this->x1, this->y1, this->x2, this->y2);
continue;
}
case KEY_LEFT:
case KEY_CTRLB:
tryLeft:
if (focus > 0)
focus--;
panelFocus = (Panel*) Vector_get(this->items, focus);
if (Panel_size(panelFocus) == 0 && focus > 0)
goto tryLeft;
break;
case KEY_RIGHT:
case KEY_CTRLF:
case 9:
tryRight:
if (focus < this->itemCount - 1)
focus++;
panelFocus = (Panel*) Vector_get(this->items, focus);
if (Panel_size(panelFocus) == 0 && focus < this->itemCount - 1)
goto tryRight;
break;
case KEY_F(10):
case 'q':
case 27:
quit = true;
continue;
default:
Panel_onKey(panelFocus, ch);
break;
}
}
*lastFocus = panelFocus;
*lastKey = ch;
}