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authorAki <please@ignore.pl>2021-09-19 20:10:28 +0200
committerAki <please@ignore.pl>2021-09-19 20:10:28 +0200
commitbbaa7f5a81cfaf26f3d5dd51edb38cf56284cb41 (patch)
treecbdb1dd95e06e255a9174d21a7857e57ed4f06e1
parentf9a9b8550ef8c7ab6c80569525f3218d864b2f3b (diff)
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Offsets are now calculated during arrangingHEADmaster
-rw-r--r--text.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/text.c b/text.c
index 6e3da86..3f65048 100644
--- a/text.c
+++ b/text.c
@@ -72,6 +72,7 @@ struct Layout
{
PangoFontDescription * desc;
int size;
+ int * offsets;
PangoLayout ** v;
};
@@ -211,6 +212,7 @@ void finalize(struct State * state, struct Layout * layout)
for (int i = 0; i < layout->size; ++i)
g_object_unref(layout->v[i]);
free(layout->v);
+ free(layout->offsets);
cairo_destroy(state->ctx);
cairo_surface_destroy(state->surface);
xcb_disconnect(state->c);
@@ -332,8 +334,9 @@ void arrange(struct State * state, struct Layout * layout, union Command body[])
{
for (int i = 0; i < layout->size; ++i)
g_object_unref(layout->v[i]);
- layout->v = malloc(sizeof(PangoLayout *) * size);
- if (NULL == layout->v)
+ layout->v = malloc(sizeof(PangoLayout *) * size); // TODO: Free when changing data
+ layout->offsets = malloc(sizeof(int) * size);
+ if (NULL == layout->v || NULL == layout->offsets)
abort(); // TODO: Be more graceful?
for (int i = 0; i < size; ++i)
layout->v[i] = pango_cairo_create_layout(state->ctx);
@@ -341,6 +344,7 @@ void arrange(struct State * state, struct Layout * layout, union Command body[])
}
PangoAttrList * attrs = pango_attr_list_new();
int i = 0;
+ int offset = MARGIN;
for (union Command * c = body; COMMAND_DONE != c->type; ++c)
{
switch (c->type)
@@ -368,6 +372,10 @@ void arrange(struct State * state, struct Layout * layout, union Command body[])
pango_layout_set_wrap(layout->v[i], PANGO_WRAP_WORD);
pango_layout_set_width(layout->v[i], (state->width - 2 * MARGIN) * PANGO_SCALE);
pango_layout_set_text(layout->v[i], c->block.data, c->block.length);
+ int height;
+ pango_layout_get_pixel_size(layout->v[i], NULL, &height);
+ layout->offsets[i] = offset;
+ offset += height + MARGIN;
i++;
break;
case COMMAND_NOTHING:
@@ -384,15 +392,11 @@ void draw(struct State * state, struct Layout * layout)
cairo_set_source_rgb(state->ctx, 1., 1., 1.);
cairo_paint(state->ctx);
cairo_set_source_rgb(state->ctx, 0., 0., 0.);
- int y = MARGIN;
for (int i = 0; i < layout->size; ++i)
{
- cairo_move_to(state->ctx, MARGIN, y);
+ cairo_move_to(state->ctx, MARGIN, layout->offsets[i]);
pango_cairo_update_layout(state->ctx, layout->v[i]);
pango_cairo_show_layout(state->ctx, layout->v[i]);
- int height;
- pango_layout_get_pixel_size(layout->v[i], NULL, &height);
- y += height + MARGIN;
}
cairo_surface_flush(state->surface);
xcb_flush(state->c);