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-rw-r--r--ui.c35
1 files changed, 27 insertions, 8 deletions
diff --git a/ui.c b/ui.c
index 87f2175..7ffada0 100644
--- a/ui.c
+++ b/ui.c
@@ -2,17 +2,24 @@
#include <fcntl.h>
#endif
+static float file_selector_entries_start_y(Ted const *ted, FileSelector const *fs) {
+ Rect bounds = fs->bounds;
+ float padding = ted->settings.padding;
+ float char_height = text_font_char_height(ted->font);
+ float char_height_bold = text_font_char_height(ted->font_bold);
+ return bounds.pos.y
+ + char_height_bold + padding // make room for cwd
+ + char_height * 1.5f; // make room for line buffer
+}
+
// where is the ith entry in the file selector on the screen?
// returns false if it's completely offscreen
static bool file_selector_entry_pos(Ted const *ted, FileSelector const *fs,
u32 i, Rect *r) {
Rect bounds = fs->bounds;
- float padding = ted->settings.padding;
float char_height = text_font_char_height(ted->font);
- float char_height_bold = text_font_char_height(ted->font_bold);
- *r = rect(V2(bounds.pos.x, bounds.pos.y
- + char_height_bold + padding // make room for cwd
- + char_height * 1.5f // make room for line buffer
+ *r = rect(V2(bounds.pos.x, file_selector_entries_start_y(ted, fs)
+ - char_height * fs->scroll
+ char_height * (float)i),
V2(bounds.size.x, char_height));
return rect_clip_to_rect(r, bounds);
@@ -31,16 +38,16 @@ static void file_selector_clear_entries(FileSelector *fs) {
static void file_selector_free(FileSelector *fs) {
file_selector_clear_entries(fs);
- fs->cwd[0] = '\0';
+ memset(fs, 0, sizeof *fs);
}
static int qsort_file_entry_cmp(void const *av, void const *bv) {
FileEntry const *a = av, *b = bv;
// put directories first
- if (a->type > b->type) {
+ if (a->type == FS_DIRECTORY && b->type != FS_DIRECTORY) {
return -1;
}
- if (a->type < b->type) {
+ if (a->type != FS_DIRECTORY && b->type == FS_DIRECTORY) {
return +1;
}
return strcmp_case_insensitive(a->name, b->name);
@@ -311,10 +318,22 @@ static char *file_selector_update(Ted *ted, FileSelector *fs) {
}
free(files);
+
} else {
ted_seterr(ted, "Couldn't list directory '%s'.", cwd);
}
+ // apply scroll
+ float scroll_speed = 2.5f;
+ fs->scroll += scroll_speed * (float)ted->scroll_total_y;
+ // clamp scroll
+ float char_height = text_font_char_height(ted->font);
+ float entries_h = rect_y2(fs->bounds) - file_selector_entries_start_y(ted, fs);
+ u32 n_display_entries = (u32)(entries_h / char_height);
+ float max_scroll = (float)fs->n_entries - (float)n_display_entries;
+ if (max_scroll < 0) max_scroll = 0;
+ fs->scroll = clampf(fs->scroll, 0, max_scroll);
+
free(search_term);
return NULL;
}