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eeshow/: move sheet overlays to right screen edge; move history left

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This commit is contained in:
Werner Almesberger 2016-08-07 06:08:42 -03:00
parent c908e4de0e
commit 56e36b7e9d
3 changed files with 41 additions and 25 deletions
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46
eeshow/gui-over.c
View File

@ -16,6 +16,9 @@
* http://zetcode.com/gfx/cairo/cairobackends/
* https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html
* https://www.cairographics.org/samples/rounded_rectangle/
*
* Section "Description" in
* https://developer.gnome.org/pango/stable/pango-Cairo-Rendering.html
*/
#include <stddef.h>
@ -33,12 +36,9 @@
#include "gui-over.h"
#define OVER_FONT_SIZE 16
#define OVER_BORDER 8
#define OVER_RADIUS 6
#define OVER_SEP 8
#define OVER_X0 10
#define OVER_Y0 10
struct overlay {
@ -111,8 +111,10 @@ struct overlay *overlay_draw(struct overlay *over, cairo_t *cr, int *x, int *y)
const double *fg = style->fg;
const double *bg = style->bg;
const double *frame = style->frame;
unsigned ink_w, ink_h, w, h;
int tx, ty;
unsigned ink_w, ink_h; /* effectively used text area size */
unsigned w, h; /* box size */
int tx, ty; /* text start position */
int sx, sy; /* box start position */
PangoLayout *layout;
PangoFontDescription *desc;
@ -138,10 +140,25 @@ fprintf(stderr, "%d + %d %d + %d\n",
w = ink_w + 2 * style->pad;
h = ink_h + 2 * style->pad;
tx = *x - ink_rect.x / PANGO_SCALE + style->pad;
ty = *y - ink_rect.y / PANGO_SCALE + style->pad;
sx = *x;
sy = *y;
if (sx < 0 || sy < 0) {
double x1, y1, x2, y2;
int sw, sh;
rrect(cr, *x, *y, w, h, style->radius);
cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
sw = x2 - x1;
sh = y2 - y1;
if (sx < 0)
sx = sw + sx - w;
if (sy < 0)
sy = sh + sy - h;
}
tx = sx - ink_rect.x / PANGO_SCALE + style->pad;
ty = sy - ink_rect.y / PANGO_SCALE + style->pad;
rrect(cr, sx, sy, w, h, style->radius);
cairo_set_source_rgba(cr, bg[0], bg[1], bg[2], bg[3]);
cairo_fill_preserve(cr);
@ -180,8 +197,8 @@ fprintf(stderr, "%u(%d) %u %.60s\n", ty, ink_rect.y / PANGO_SCALE, ink_h, over->
if (over->hover || over->click) {
struct aoi aoi_cfg = {
.x = *x,
.y = *y,
.x = sx,
.y = sy,
.w = w,
.h = h,
.hover = over->hover,
@ -195,17 +212,18 @@ fprintf(stderr, "%u(%d) %u %.60s\n", ty, ink_rect.y / PANGO_SCALE, ink_h, over->
over->aoi = aoi_add(over->aois, &aoi_cfg);
}
*y += h + style->skip;
if (*y >= 0)
*y += h + style->skip;
else
*y -= h + style->skip;
return over->next;
}
void overlay_draw_all(struct overlay *overlays, cairo_t *cr)
void overlay_draw_all(struct overlay *overlays, cairo_t *cr, int x, int y)
{
struct overlay *over;
int x = OVER_X0;
int y = OVER_Y0;
for (over = overlays; over; over = over->next)
overlay_draw(over, cr, &x, &y);

2
eeshow/gui-over.h
View File

@ -41,7 +41,7 @@ extern struct overlay_style overlay_style_dense;
extern struct overlay_style overlay_style_dense_selected;
struct overlay *overlay_draw(struct overlay *over, cairo_t *cr, int *x, int *y);
void overlay_draw_all(struct overlay *overlays, cairo_t *cr);
void overlay_draw_all(struct overlay *overlays, cairo_t *cr, int x, int y);
struct overlay *overlay_add(struct overlay **overlays, struct aoi **aois,
bool (*hover)(void *user, bool on), void (*click)(void *user), void *user);
void overlay_text_raw(struct overlay *over, const char *s);

18
eeshow/gui.c
View File

@ -99,15 +99,11 @@ static void redraw(const struct gui_ctx *ctx)
/* ----- Rendering --------------------------------------------------------- */
static void draw_vcs_overlays(const struct gui_ctx *ctx, cairo_t *cr)
{
struct overlay *over;
int x = 200;
int y = 5;
#define VCS_OVERLAYS_X 5
#define VCS_OVERLAYS_Y 5
for (over = ctx->vcs_overlays; over;)
over = overlay_draw(over, cr, &x, &y);
}
#define SHEET_OVERLAYS_X -10
#define SHEET_OVERLAYS_Y 10
static gboolean on_draw_event(GtkWidget *widget, cairo_t *cr,
@ -125,8 +121,10 @@ static gboolean on_draw_event(GtkWidget *widget, cairo_t *cr,
y = -(sheet->ymin + ctx->y) * f + alloc.height / 2;
cro_canvas_draw(sheet->gfx_ctx, cr, x, y, f);
overlay_draw_all(ctx->sheet_overlays, cr);
draw_vcs_overlays(ctx, cr);
overlay_draw_all(ctx->sheet_overlays, cr,
SHEET_OVERLAYS_X, SHEET_OVERLAYS_Y);
overlay_draw_all(ctx->vcs_overlays, cr,
VCS_OVERLAYS_X, VCS_OVERLAYS_Y);
return FALSE;
}