diff options
Diffstat (limited to 'InfoScreen.c')
| -rw-r--r-- | InfoScreen.c | 185 |
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); + } + } +} |