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Handle font size changes, rescaling images

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Kovid Goyal
2017-10-09 15:15:13 +05:30
parent 3cce238b2b
commit 94eaaae4a6
4 changed files with 49 additions and 18 deletions
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50
kitty/graphics.c
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@@ -554,6 +554,24 @@ update_src_rect(ImageRef *ref, Image *img) {
ref->src_rect.bottom = (float)(ref->src_y + ref->src_height) / (float)img->height;
}
static inline void
update_dest_rect(ImageRef *ref, uint32_t num_cols, uint32_t num_rows) {
uint32_t t;
if (num_cols == 0) {
t = ref->src_width + ref->cell_x_offset;
num_cols = t / global_state.cell_width;
if (t > num_cols * global_state.cell_width) num_cols += 1;
}
if (num_rows == 0) {
t = ref->src_height + ref->cell_y_offset;
num_rows = t / global_state.cell_height;
if (t > num_rows * global_state.cell_height) num_rows += 1;
}
ref->effective_num_rows = num_rows;
ref->effective_num_cols = num_cols;
}
static void
handle_put_command(GraphicsManager *self, const GraphicsCommand *g, Cursor *c, bool *is_dirty, Image *img) {
has_add_respose = false;
@@ -581,22 +599,9 @@ handle_put_command(GraphicsManager *self, const GraphicsCommand *g, Cursor *c, b
ref->cell_y_offset = MIN(g->cell_y_offset, global_state.cell_height - 1);
ref->num_cols = g->num_cells; ref->num_rows = g->num_lines;
update_src_rect(ref, img);
update_dest_rect(ref, g->num_cells, g->num_lines);
// Move the cursor, the screen will take care of ensuring it is in bounds
uint32_t num_cols = g->num_cells, num_rows = g->num_lines, t;
if (num_cols == 0) {
t = ref->src_width + ref->cell_x_offset;
num_cols = t / global_state.cell_width;
if (t > num_cols * global_state.cell_width) num_cols += 1;
}
if (num_rows == 0) {
t = ref->src_height + ref->cell_y_offset;
num_rows = t / global_state.cell_height;
if (t > num_rows * global_state.cell_height) num_rows += 1;
}
c->x += num_cols; c->y += num_rows - 1;
ref->effective_num_rows = num_rows;
ref->effective_num_cols = num_cols;
c->x += ref->effective_num_cols; c->y += ref->effective_num_rows - 1;
}
static int
@@ -819,6 +824,21 @@ grman_resize(GraphicsManager *self, index_type UNUSED old_lines, index_type UNUS
self->layers_dirty = true;
}
void
grman_rescale(GraphicsManager *self, unsigned int UNUSED old_cell_width, unsigned int UNUSED old_cell_height) {
ImageRef *ref; Image *img;
self->layers_dirty = true;
for (size_t i = self->image_count; i-- > 0;) {
img = self->images + i;
for (size_t j = img->refcnt; j-- > 0;) {
ref = img->refs + j;
ref->cell_x_offset = MIN(ref->cell_x_offset, global_state.cell_width - 1);
ref->cell_y_offset = MIN(ref->cell_y_offset, global_state.cell_height - 1);
update_dest_rect(ref, ref->num_cols, ref->num_rows);
}
}
}
const char*
grman_handle_command(GraphicsManager *self, const GraphicsCommand *g, const uint8_t *payload, Cursor *c, bool *is_dirty) {
Image *image;