532 lines
13 KiB
C
532 lines
13 KiB
C
#include <Elementary.h>
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#include <stdio.h>
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#include <assert.h>
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#include "miniview.h"
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#include "col.h"
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#include "termpty.h"
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#include "termio.h"
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#include "main.h"
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/* specific log domain to help debug only miniview */
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int _miniview_log_dom = -1;
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#undef CRITICAL
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#undef ERR
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#undef WRN
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#undef INF
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#undef DBG
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#define CRIT(...) EINA_LOG_DOM_CRIT(_miniview_log_dom, __VA_ARGS__)
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#define ERR(...) EINA_LOG_DOM_ERR(_miniview_log_dom, __VA_ARGS__)
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#define WRN(...) EINA_LOG_DOM_WARN(_miniview_log_dom, __VA_ARGS__)
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#define INF(...) EINA_LOG_DOM_INFO(_miniview_log_dom, __VA_ARGS__)
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#define DBG(...) EINA_LOG_DOM_DBG(_miniview_log_dom, __VA_ARGS__)
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/*TODO: work with splits */
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void
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miniview_init(void)
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{
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if (_miniview_log_dom >= 0) return;
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_miniview_log_dom = eina_log_domain_register("miniview", NULL);
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if (_miniview_log_dom < 0)
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EINA_LOG_CRIT("could not create log domain 'miniview'.");
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}
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void
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miniview_shutdown(void)
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{
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if (_miniview_log_dom < 0) return;
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eina_log_domain_unregister(_miniview_log_dom);
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_miniview_log_dom = -1;
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}
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typedef struct _Miniview Miniview;
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struct _Miniview
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{
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Evas_Object *self;
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Evas_Object *img;
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Evas_Object *termio;
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Termpty *pty;
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int img_h;
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int img_hist; /* history rendered is between img_hpos(<0) and
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img_pos - image_height */
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int img_off; /* >0; offset for the visible part */
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int viewport_h;
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int rows;
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int columns;
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int is_shown;
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};
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static Evas_Smart *_smart = NULL;
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static void
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_draw_line(unsigned int *pixels, Termcell *cells, int length)
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{
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int x;
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for (x = 0 ; x < length; x++)
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{
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int r, g, b;
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if (cells[x].codepoint > 0 && !isspace(cells[x].codepoint) &&
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!cells[x].att.newline && !cells[x].att.tab &&
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!cells[x].att.invisible && cells[x].att.bg != COL_INVIS)
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{
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switch (cells[x].att.fg)
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{
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// TODO: get pixel colors from current themee...
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case 0:
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r = 180; g = 180; b = 180;
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break;
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case 2:
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r = 204; g = 51; b = 51;
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break;
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case 3:
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r = 51; g = 204; b = 51;
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break;
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case 4:
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r = 204; g = 136; b = 51;
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break;
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case 5:
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r = 51; g = 51; b = 204;
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break;
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case 6:
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r = 204; g = 51; b = 204;
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break;
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case 7:
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r = 51; g = 204; b = 204;
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break;
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default:
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r = 180; g = 180; b = 180;
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}
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pixels[x] = (0xff << 24) | (r << 16) | (g << 8) | b;
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}
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}
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}
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static void
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_scroll(Miniview *mv, int z)
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{
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int history_len = mv->pty->backscroll_num,
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new_offset,
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d;
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Evas_Coord ox, oy;
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/* whether to move img or modify it */
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DBG("history_len:%d z:%d img:h:%d hist:%d off:%d viewport:%d rows:%d",
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history_len, z, mv->img_h, mv->img_hist, mv->img_off, mv->viewport_h,
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mv->rows);
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/* top? */
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if ((mv->img_hist == -history_len && mv->img_off == 0 && z < 0))
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{
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DBG("TOP");
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return;
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}
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/* bottom? */
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if (mv->img_hist + mv->viewport_h + mv->img_off >= mv->rows && z > 0) /* bottom */
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{
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DBG("BOTTOM");
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return;
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}
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evas_object_geometry_get(mv->img, &ox, &oy, NULL, NULL);
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new_offset = mv->img_off + z;
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if (new_offset >= 0 &&
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new_offset + mv->viewport_h <= mv->img_h)
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{
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/* move */
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/*
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if (z > 0)
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// TODO: boundaries
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d = MIN(mv->viewport_h + z, history_len + mv->img_hist);
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else
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d = MIN(mv->viewport_h + z, history_len + mv->img_hist);
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*/
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mv->img_off = new_offset;
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evas_object_move(mv->img, ox, oy - z);
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}
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else
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{
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Termcell *cells;
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unsigned int *pixels;
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int y, wret;
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pixels = evas_object_image_data_get(mv->img, EINA_TRUE);
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/*TODO: memmove, be more efficient: ftm, redraw it all */
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if (z > 0)
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{
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/* draw bottom */
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if (mv->img_hist + z + mv->viewport_h > mv->rows)
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{
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mv->img_hist = mv->rows - mv->viewport_h;
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mv->img_off = 0;
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}
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else
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{
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mv->img_hist += mv->viewport_h + z;
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mv->img_off = mv->viewport_h;
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}
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/* TODO: boris not working: offset issue */
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memset(pixels, 0, sizeof(*pixels) * mv->columns * mv->img_h);
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for (y = 0; y < mv->img_h; y++)
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{
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cells = termpty_cellrow_get(mv->pty, mv->img_hist + y, &wret);
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if (cells == NULL)
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break;
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_draw_line(&pixels[y * mv->columns], cells, wret);
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}
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mv->img_off = mv->viewport_h;
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evas_object_move(mv->img,
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ox,
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-mv->img_off);
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}
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else
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{
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if (mv->viewport_h + z < history_len + mv->img_hist)
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{
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d = mv->viewport_h + z;
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mv->img_off = d;
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}
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else
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{
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d = history_len + mv->img_hist;
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mv->img_off = 0;
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}
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mv->img_hist -= d;
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if (!d) return;
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/* draw top */
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memset(pixels, 0, sizeof(*pixels) * mv->columns * mv->img_h);
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for (y = 0; y < mv->img_h; y++)
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{
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cells = termpty_cellrow_get(mv->pty, mv->img_hist + y, &wret);
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if (cells == NULL)
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break;
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_draw_line(&pixels[y * mv->columns], cells, wret);
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}
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evas_object_move(mv->img,
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ox,
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- mv->img_off);
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}
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}
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}
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static void
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_smart_cb_mouse_wheel(void *data, Evas *e EINA_UNUSED,
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Evas_Object *obj EINA_UNUSED, void *event)
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{
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Evas_Event_Mouse_Wheel *ev = event;
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Miniview *mv = evas_object_smart_data_get(data);
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EINA_SAFETY_ON_NULL_RETURN(mv);
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/* do not handle horizontal scrolling */
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if (ev->direction) return;
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DBG("ev->z:%d", ev->z);
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_scroll(mv, ev->z * 10);
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}
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static void
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_smart_cb_key_down(void *data, Evas *e EINA_UNUSED,
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Evas_Object *obj EINA_UNUSED, void *event)
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{
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Evas_Event_Key_Down *ev = event;
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Miniview *mv = evas_object_smart_data_get(data);
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EINA_SAFETY_ON_NULL_RETURN(mv);
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/* TODO handle keybinding to hide */
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if (!strcmp(ev->key, "Prior"))
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_scroll(mv, -10);
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else if (!strcmp(ev->key, "Next"))
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_scroll(mv, 10);
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}
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static void
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_smart_cb_mouse_in(void *data, Evas *e EINA_UNUSED,
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Evas_Object *obj EINA_UNUSED, void *event EINA_UNUSED)
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{
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Miniview *mv = evas_object_smart_data_get(data);
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EINA_SAFETY_ON_NULL_RETURN(mv);
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elm_object_focus_set(mv->img, EINA_TRUE);
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}
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static void
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_smart_cb_mouse_out(void *data, Evas *e EINA_UNUSED,
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Evas_Object *obj EINA_UNUSED, void *event EINA_UNUSED)
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{
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Miniview *mv = evas_object_smart_data_get(data);
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EINA_SAFETY_ON_NULL_RETURN(mv);
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elm_object_focus_set(mv->img, EINA_FALSE);
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}
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static void
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_smart_add(Evas_Object *obj)
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{
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Miniview *mv;
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Evas_Object *o;
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Evas *canvas = evas_object_evas_get(obj);
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DBG("%p", obj);
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mv = calloc(1, sizeof(Miniview));
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EINA_SAFETY_ON_NULL_RETURN(mv);
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evas_object_smart_data_set(obj, mv);
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mv->self = obj;
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/* miniview output widget */
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o = evas_object_image_add(canvas);
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evas_object_image_alpha_set(o, EINA_TRUE);
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evas_object_smart_member_add(o, obj);
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mv->img = o;
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evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_WHEEL,
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_smart_cb_mouse_wheel, obj);
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evas_object_event_callback_add(o, EVAS_CALLBACK_KEY_DOWN,
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_smart_cb_key_down, obj);
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evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_IN,
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_smart_cb_mouse_in, obj);
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evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_OUT,
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_smart_cb_mouse_out, obj);
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}
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static void
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_smart_del(Evas_Object *obj)
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{
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Miniview *mv = evas_object_smart_data_get(obj);
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DBG("%p", obj);
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if (!mv) return;
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/* TODO */
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DBG("%p", obj);
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}
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static void
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_smart_move(Evas_Object *obj, Evas_Coord x EINA_UNUSED, Evas_Coord y EINA_UNUSED)
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{
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Miniview *mv = evas_object_smart_data_get(obj);
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if (!mv) return;
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/* TODO */
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DBG("%p x:%d y:%d", obj, x, y);
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evas_object_move(mv->img, x, y);
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}
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static void
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_smart_show(Evas_Object *obj)
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{
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Miniview *mv = evas_object_smart_data_get(obj);
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DBG("smart show obj:%p mv:%p", obj, mv);
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if (!mv) return;
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if (!mv->is_shown)
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{
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mv->is_shown = 1;
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miniview_redraw(obj, mv->columns, mv->rows);
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evas_object_show(mv->img);
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}
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/*
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Evas_Coord ox, oy, ow, oh;
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evas_object_geometry_get(mv->img, &ox, &oy, &ow, &oh);
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DBG("ox:%d oy:%d ow:%d oh:%d visible:%d|%d %d %d %d",
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ox, oy, ow, oh,
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evas_object_visible_get(obj),
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evas_object_visible_get(mv->img),
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evas_object_layer_get(mv->img),
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evas_object_layer_get(obj),
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evas_object_layer_get(mv->termio));
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*/
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}
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static void
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_smart_hide(Evas_Object *obj)
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{
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Miniview *mv = evas_object_smart_data_get(obj);
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DBG("smart hide obj:%p mv:%p", obj, mv);
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if (!mv) return;
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if (mv->is_shown)
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{
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mv->is_shown = 0;
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evas_object_hide(mv->img);
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}
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}
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void
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miniview_redraw(Evas_Object *obj, int columns, int rows)
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{
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Miniview *mv;
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Evas_Coord ox, oy, ow, oh;
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int history_len, h, y, wret;
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unsigned int *pixels;
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Termcell *cells;
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if (!obj) return;
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mv = evas_object_smart_data_get(obj);
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if (!mv) return;
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mv->columns = columns;
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mv->rows = rows;
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if (!mv->is_shown) return;
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DBG("smart size %p", obj);
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evas_object_geometry_get(mv->termio, &ox, &oy, &ow, &oh);
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if (ow == 0 || oh == 0) return;
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mv->img_h = 3 * oh;
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DBG("ox:%d oy:%d ow:%d oh:%d columns:%d rows:%d",
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ox, oy, ow, oh, mv->columns, mv->rows);
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evas_object_resize(mv->img, mv->columns, mv->img_h);
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evas_object_image_size_set(mv->img, mv->columns, mv->img_h);
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evas_object_image_fill_set(mv->img, 0, 0, mv->columns, mv->img_h);
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history_len = mv->pty->backscroll_num;
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DBG("backscroll_num:%d backmax:%d backpos:%d",
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mv->pty->backscroll_num, mv->pty->backmax, mv->pty->backpos);
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pixels = evas_object_image_data_get(mv->img, EINA_TRUE);
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memset(pixels, 0, sizeof(*pixels) * mv->columns * mv->img_h);
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mv->viewport_h = oh;
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h = mv->img_h - mv->rows;
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if (h < history_len)
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{
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mv->img_hist = mv->rows - mv->img_h;
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}
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else
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{
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mv->img_hist = -history_len;
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}
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DBG("img_h:%d history_len:%d h:%d img_hist:%d vph:%d",
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mv->img_h, history_len, h, mv->img_hist, mv->viewport_h);
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for (y = 0; y < mv->img_h; y++)
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{
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cells = termpty_cellrow_get(mv->pty, mv->img_hist + y, &wret);
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if (cells == NULL)
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{
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DBG("y:%d get:%d", y, mv->img_hist + y);
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break;
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}
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_draw_line(&pixels[y * mv->columns], cells, wret);
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}
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if (y > mv->viewport_h)
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{
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mv->img_off = y - mv->viewport_h;
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evas_object_move(mv->img,
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ox + ow - mv->columns,
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- mv->img_off);
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}
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else
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{
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mv->img_off = 0;
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evas_object_move(mv->img,
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ox + ow - mv->columns,
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0);
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}
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DBG("history_len:%d img:h:%d hist:%d off:%d viewport:%d",
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history_len, mv->img_h, mv->img_hist, mv->img_off,mv->viewport_h);
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}
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static void
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_smart_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
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{
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Miniview *mv = evas_object_smart_data_get(obj);
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if (!mv) return;
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DBG("smart resize %p w:%d h:%d", obj, w, h);
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evas_object_resize(mv->img, w, h);
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}
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static void
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_smart_init(void)
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{
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static Evas_Smart_Class sc = EVAS_SMART_CLASS_INIT_NULL;
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DBG("smart init");
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sc.name = "miniview";
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sc.version = EVAS_SMART_CLASS_VERSION;
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sc.add = _smart_add;
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sc.del = _smart_del;
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sc.resize = _smart_resize;
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sc.move = _smart_move;
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sc.show = _smart_show;
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sc.hide = _smart_hide;
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_smart = evas_smart_class_new(&sc);
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}
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Evas_Object *
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miniview_add(Evas_Object *parent, Evas_Object *termio)
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{
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Evas *e;
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Evas_Object *obj;
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Miniview *mv;
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Evas_Coord ow, oh, font_w, font_h;
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EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
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e = evas_object_evas_get(parent);
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if (!e) return NULL;
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DBG("ADD parent:%p", parent);
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if (!_smart) _smart_init();
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obj = evas_object_smart_add(e, _smart);
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mv = evas_object_smart_data_get(obj);
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if (!mv) return obj;
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mv->termio = termio;
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mv->pty = termio_pty_get(termio);
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evas_object_geometry_get(mv->termio, NULL, NULL, &ow, &oh);
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if (ow == 0 || oh == 0) return obj;
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evas_object_size_hint_min_get(mv->termio, &font_w, &font_h);
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|
|
|
if (font_w <= 0 || font_h <= 0) return obj;
|
|
|
|
miniview_redraw(obj, ow / font_w, oh / font_h);
|
|
|
|
return obj;
|
|
}
|
|
|