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authorLeo Tenenbaum <pommicket@gmail.com>2021-01-02 17:50:19 -0500
committerLeo Tenenbaum <pommicket@gmail.com>2021-01-02 17:50:19 -0500
commit496c8aeb321be70292837d15a14a0dfb0f17e33c (patch)
treeffd543c0d0a6d33199a442462b494dd578779196
parent4293406c06fbd5572d25d86398c2c2e279ff5118 (diff)
shift+click and shift+drag to select
-rw-r--r--main.c31
1 files changed, 22 insertions, 9 deletions
diff --git a/main.c b/main.c
index b76d69f..eca095b 100644
--- a/main.c
+++ b/main.c
@@ -118,11 +118,12 @@ int main(void) {
SDL_Event event;
Uint8 const *keyboard_state = SDL_GetKeyboardState(NULL);
- bool ctrl = keyboard_state[SDL_SCANCODE_LCTRL] || keyboard_state[SDL_SCANCODE_RCTRL];
- bool shift = keyboard_state[SDL_SCANCODE_LSHIFT] || keyboard_state[SDL_SCANCODE_RSHIFT];
- bool alt = keyboard_state[SDL_SCANCODE_LALT] || keyboard_state[SDL_SCANCODE_RALT];
-
- (void)ctrl; (void)shift; (void)alt;
+ bool ctrl_down = keyboard_state[SDL_SCANCODE_LCTRL] || keyboard_state[SDL_SCANCODE_RCTRL];
+ bool shift_down = keyboard_state[SDL_SCANCODE_LSHIFT] || keyboard_state[SDL_SCANCODE_RSHIFT];
+ bool alt_down = keyboard_state[SDL_SCANCODE_LALT] || keyboard_state[SDL_SCANCODE_RALT];
+ u32 key_modifier = (u32)ctrl_down << KEY_MODIFIER_CTRL_BIT
+ | (u32)shift_down << KEY_MODIFIER_SHIFT_BIT
+ | (u32)alt_down << KEY_MODIFIER_ALT_BIT;
while (SDL_PollEvent(&event)) {
// @TODO: make a function to handle text buffer events
@@ -139,12 +140,24 @@ int main(void) {
case SDL_MOUSEBUTTONDOWN:
switch (event.button.button) {
case SDL_BUTTON_LEFT: {
- BufferPos pos;
- if (buffer_pixels_to_pos(buffer, V2((float)event.button.x, (float)event.button.y), &pos))
- buffer_cursor_move_to_pos(buffer, pos);
+ BufferPos pos = {0};
+ if (buffer_pixels_to_pos(buffer, V2((float)event.button.x, (float)event.button.y), &pos)) {
+ if (key_modifier == KEY_MODIFIER_SHIFT)
+ buffer_select_to_pos(buffer, pos);
+ else if (key_modifier == 0)
+ buffer_cursor_move_to_pos(buffer, pos);
+ }
} break;
}
break;
+ case SDL_MOUSEMOTION:
+ if (event.motion.state == SDL_BUTTON_LMASK) {
+ BufferPos pos = {0};
+ if (buffer_pixels_to_pos(buffer, V2((float)event.button.x, (float)event.button.y), &pos)) {
+ buffer_select_to_pos(buffer, pos);
+ }
+ }
+ break;
case SDL_KEYDOWN: {
SDL_Scancode scancode = event.key.keysym.scancode;
SDL_Keymod modifier = event.key.keysym.mod;
@@ -180,7 +193,7 @@ int main(void) {
time_at_last_frame = time_this_frame;
}
- if (alt) {
+ if (key_modifier == KEY_MODIFIER_ALT) {
// alt + arrow keys to scroll
double scroll_speed = 20.0;
double scroll_amount_x = scroll_speed * frame_dt * 1.5; // characters are taller than they are wide