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-rw-r--r--autistdraw.c99
1 files changed, 65 insertions, 34 deletions
diff --git a/autistdraw.c b/autistdraw.c
index 258f24b..05fdfd9 100644
--- a/autistdraw.c
+++ b/autistdraw.c
@@ -657,56 +657,39 @@ export_irc (app_context_t *app)
// --- Event handlers ----------------------------------------------------------
-static bool
-on_key (app_context_t *app, termo_key_t *key)
+static void
+move_canvas (app_context_t *app, int x, int y)
{
- if (key->type == TERMO_TYPE_KEYSYM && key->code.sym == TERMO_SYM_ESCAPE)
- return false;
-
- if (key->type == TERMO_TYPE_KEY
- && (key->modifiers & TERMO_KEYMOD_CTRL)
- && (key->code.codepoint == 'C' || key->code.codepoint == 'c'))
- return false;
-
- if (key->type == TERMO_TYPE_KEY && key->code.codepoint == 'e')
- {
- export_ansi (app);
- return true;
- }
+ app->corner_x += x;
+ app->corner_y += y;
- if (key->type == TERMO_TYPE_KEY && key->code.codepoint == 'E')
- {
- export_irc (app);
- return true;
- }
+ app->center_x += x;
+ app->center_y += y;
- if (key->type != TERMO_TYPE_MOUSE)
- return true;
+ redraw_canvas (app);
+}
+static void
+on_mouse (app_context_t *app, termo_key_t *key)
+{
int screen_y, screen_x, button;
termo_mouse_event_t event;
termo_interpret_mouse (app->tk, key, &event, &button, &screen_y, &screen_x);
if (event != TERMO_MOUSE_PRESS && event != TERMO_MOUSE_DRAG)
- return true;
+ return;
// Middle mouse button, or Ctrl + left mouse button, moves the canvas
if (button == 2 || (button == 1 && key->modifiers == TERMO_KEYMOD_CTRL))
{
if (event == TERMO_MOUSE_DRAG)
- {
- app->corner_x += app->move_saved_x - screen_x;
- app->corner_y += app->move_saved_y - screen_y;
-
- app->center_x += app->move_saved_x - screen_x;
- app->center_y += app->move_saved_y - screen_y;
-
- redraw_canvas (app);
- }
+ move_canvas (app,
+ app->move_saved_x - screen_x,
+ app->move_saved_y - screen_y);
app->move_saved_x = screen_x;
app->move_saved_y = screen_y;
- return true;
+ return;
}
uint8_t *color;
@@ -715,7 +698,7 @@ on_key (app_context_t *app, termo_key_t *key)
else if (button == 3)
color = &app->current_color_right;
else
- return true;
+ return;
int canvas_x = app->corner_x + screen_x;
int canvas_y = app->corner_y + screen_y - TOP_BAR_CUTOFF;
@@ -732,6 +715,54 @@ on_key (app_context_t *app, termo_key_t *key)
int pair = (float) screen_x / COLS * PALETTE_WIDTH;
*color = pair + (screen_y - 1) * PALETTE_WIDTH;
}
+}
+
+static bool
+on_key (app_context_t *app, termo_key_t *key)
+{
+ if (key->type == TERMO_TYPE_KEYSYM)
+ {
+ if (key->code.sym == TERMO_SYM_ESCAPE)
+ return false;
+
+ if (key->modifiers)
+ return true;
+
+ switch (key->code.sym)
+ {
+ case TERMO_SYM_UP:
+ move_canvas (app, 0, -1);
+ break;
+ case TERMO_SYM_DOWN:
+ move_canvas (app, 0, 1);
+ break;
+ case TERMO_SYM_LEFT:
+ move_canvas (app, -1, 0);
+ break;
+ case TERMO_SYM_RIGHT:
+ move_canvas (app, 1, 0);
+ default:
+ break;
+ }
+ return true;
+ }
+
+ if (key->type == TERMO_TYPE_KEY)
+ {
+ if ((key->modifiers & TERMO_KEYMOD_CTRL)
+ && (key->code.codepoint == 'C' || key->code.codepoint == 'c'))
+ return false;
+
+ if (key->modifiers)
+ return true;
+
+ if (key->code.codepoint == 'e') export_ansi (app);
+ if (key->code.codepoint == 'E') export_irc (app);
+ return true;
+ }
+
+ if (key->type == TERMO_TYPE_MOUSE)
+ on_mouse (app, key);
return true;
}