summaryrefslogtreecommitdiffstats
path: root/InfoScreen.c
diff options
context:
space:
mode:
Diffstat (limited to 'InfoScreen.c')
-rw-r--r--InfoScreen.c185
1 files changed, 185 insertions, 0 deletions
diff --git a/InfoScreen.c b/InfoScreen.c
new file mode 100644
index 0000000..c602cd4
--- /dev/null
+++ b/InfoScreen.c
@@ -0,0 +1,185 @@
+/*
+htop - InfoScreen.c
+(C) 2016 Hisham H. Muhammad
+(C) 2020,2022 htop dev team
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "InfoScreen.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "CRT.h"
+#include "IncSet.h"
+#include "ListItem.h"
+#include "Object.h"
+#include "ProvideCurses.h"
+#include "XUtils.h"
+
+
+static const char* const InfoScreenFunctions[] = {"Search ", "Filter ", "Refresh", "Done ", NULL};
+
+static const char* const InfoScreenKeys[] = {"F3", "F4", "F5", "Esc"};
+
+static const int InfoScreenEvents[] = {KEY_F(3), KEY_F(4), KEY_F(5), 27};
+
+InfoScreen* InfoScreen_init(InfoScreen* this, const Process* process, FunctionBar* bar, int height, const char* panelHeader) {
+ this->process = process;
+ if (!bar) {
+ bar = FunctionBar_new(InfoScreenFunctions, InfoScreenKeys, InfoScreenEvents);
+ }
+ this->display = Panel_new(0, 1, COLS, height, Class(ListItem), false, bar);
+ this->inc = IncSet_new(bar);
+ this->lines = Vector_new(Vector_type(this->display->items), true, DEFAULT_SIZE);
+ Panel_setHeader(this->display, panelHeader);
+ return this;
+}
+
+InfoScreen* InfoScreen_done(InfoScreen* this) {
+ Panel_delete((Object*)this->display);
+ IncSet_delete(this->inc);
+ Vector_delete(this->lines);
+ return this;
+}
+
+void InfoScreen_drawTitled(InfoScreen* this, const char* fmt, ...) {
+ va_list ap;
+ va_start(ap, fmt);
+
+ char title[COLS + 1];
+ int len = vsnprintf(title, sizeof(title), fmt, ap);
+ va_end(ap);
+
+ if (len > COLS) {
+ memset(&title[COLS - 3], '.', 3);
+ }
+
+ attrset(CRT_colors[METER_TEXT]);
+ mvhline(0, 0, ' ', COLS);
+ mvaddstr(0, 0, title);
+ attrset(CRT_colors[DEFAULT_COLOR]);
+ Panel_draw(this->display, true, true, true, false);
+
+ IncSet_drawBar(this->inc, CRT_colors[FUNCTION_BAR]);
+}
+
+void InfoScreen_addLine(InfoScreen* this, const char* line) {
+ Vector_add(this->lines, (Object*) ListItem_new(line, 0));
+ const char* incFilter = IncSet_filter(this->inc);
+ if (!incFilter || String_contains_i(line, incFilter, true)) {
+ Panel_add(this->display, Vector_get(this->lines, Vector_size(this->lines) - 1));
+ }
+}
+
+void InfoScreen_appendLine(InfoScreen* this, const char* line) {
+ ListItem* last = (ListItem*)Vector_get(this->lines, Vector_size(this->lines) - 1);
+ ListItem_append(last, line);
+ const char* incFilter = IncSet_filter(this->inc);
+ if (incFilter && Panel_get(this->display, Panel_size(this->display) - 1) != (Object*)last && String_contains_i(line, incFilter, true)) {
+ Panel_add(this->display, (Object*)last);
+ }
+}
+
+void InfoScreen_run(InfoScreen* this) {
+ Panel* panel = this->display;
+
+ if (As_InfoScreen(this)->scan)
+ InfoScreen_scan(this);
+
+ InfoScreen_draw(this);
+
+ bool looping = true;
+ while (looping) {
+
+ Panel_draw(panel, false, true, true, false);
+ IncSet_drawBar(this->inc, CRT_colors[FUNCTION_BAR]);
+
+ int ch = Panel_getCh(panel);
+
+ if (ch == ERR) {
+ if (As_InfoScreen(this)->onErr) {
+ InfoScreen_onErr(this);
+ continue;
+ }
+ }
+
+#ifdef HAVE_GETMOUSE
+ if (ch == KEY_MOUSE) {
+ MEVENT mevent;
+ int ok = getmouse(&mevent);
+ if (ok == OK) {
+ if (mevent.bstate & BUTTON1_RELEASED) {
+ if (mevent.y >= panel->y && mevent.y < LINES - 1) {
+ Panel_setSelected(panel, mevent.y - panel->y + panel->scrollV - 1);
+ ch = 0;
+ } else if (mevent.y == LINES - 1) {
+ ch = IncSet_synthesizeEvent(this->inc, mevent.x);
+ }
+ }
+ #if NCURSES_MOUSE_VERSION > 1
+ else if (mevent.bstate & BUTTON4_PRESSED) {
+ ch = KEY_WHEELUP;
+ } else if (mevent.bstate & BUTTON5_PRESSED) {
+ ch = KEY_WHEELDOWN;
+ }
+ #endif
+ }
+ }
+#endif
+
+ if (this->inc->active) {
+ IncSet_handleKey(this->inc, ch, panel, IncSet_getListItemValue, this->lines);
+ continue;
+ }
+
+ switch (ch) {
+ case ERR:
+ continue;
+ case KEY_F(3):
+ case '/':
+ IncSet_activate(this->inc, INC_SEARCH, panel);
+ break;
+ case KEY_F(4):
+ case '\\':
+ IncSet_activate(this->inc, INC_FILTER, panel);
+ break;
+ case KEY_F(5):
+ clear();
+ if (As_InfoScreen(this)->scan) {
+ Vector_prune(this->lines);
+ InfoScreen_scan(this);
+ }
+
+ InfoScreen_draw(this);
+ break;
+ case '\014': // Ctrl+L
+ clear();
+ InfoScreen_draw(this);
+ break;
+ case 27:
+ case 'q':
+ case KEY_F(10):
+ looping = false;
+ break;
+ case KEY_RESIZE:
+ Panel_resize(panel, COLS, LINES - 2);
+ if (As_InfoScreen(this)->scan) {
+ Vector_prune(this->lines);
+ InfoScreen_scan(this);
+ }
+
+ InfoScreen_draw(this);
+ break;
+ default:
+ if (As_InfoScreen(this)->onKey && InfoScreen_onKey(this, ch)) {
+ continue;
+ }
+ Panel_onKey(panel, ch);
+ }
+ }
+}