diff options
Diffstat (limited to 'plugins/dumb/dumb-kode54/studio/src/guitop.c')
| -rw-r--r-- | plugins/dumb/dumb-kode54/studio/src/guitop.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/plugins/dumb/dumb-kode54/studio/src/guitop.c b/plugins/dumb/dumb-kode54/studio/src/guitop.c new file mode 100644 index 00000000..be5cddf9 --- /dev/null +++ b/plugins/dumb/dumb-kode54/studio/src/guitop.c @@ -0,0 +1,131 @@ +#include <allegro.h>
+
+#include "options.h"
+#include "guitop.h"
+#include "guiproc.h"
+#include "dumbdesk.h"
+
+
+
+int the_time;
+
+volatile int true_time;
+static int max_time;
+
+
+
+static void timer_handler(void)
+{
+ if (true_time < max_time)
+ true_time++;
+}
+END_OF_STATIC_FUNCTION(timer_handler);
+
+
+
+#define MAX_SKIP 20
+
+
+
+/*
+Every GUI has a reference to its parent - except the top one.
+
+Main loop:
+ Test keyboard.
+ Esc makes parent GUI active.
+ Other keys go to active GUI, which can do as it pleases.
+ Test mouse.
+ Mouse clicks go to the top GUI.
+ The top GUI may pass them down recursively.
+ A GUI may be marked as mouse-active, for dragging.
+ Update top GUI.
+ Update functions are called recursively.
+ This can be used for animation for example.
+ If there's time, draw top GUI.
+ Draw functions only draw areas marked for redrawing.
+ Marked areas are unmarked once they have been drawn.
+ Draw functions are called recursively.
+ If a child has moved:
+ It will call its parent for the vacated areas.*
+
+The child will have been removed from the parent's list while
+it was drawn, so recursive cycles cannot occur.
+*/
+
+
+
+void run_desktop(GUI_DESKTOP_PARAM *param)
+{
+ GUI *gui = gui_create(
+ &gui_desktop_commands,
+ NULL,
+ 0, 0, opt.gfx_w, opt.gfx_h,
+ param
+ );
+
+ if (!gui)
+ return;
+
+ gui_active = gui;
+
+ true_time = the_time = 0;
+ max_time = MAX_SKIP;
+
+ install_int_ex(timer_handler, BPS_TO_TIMER(100));
+
+ for (;;) {
+ gui_draw(gui);
+ gui_drawn(gui);
+
+ while (the_time >= true_time)
+ yield_timeslice();
+
+ while (the_time < true_time) {
+ the_time++;
+
+ /*
+ Test keyboard.
+ Esc makes parent GUI active.
+ Other keys go to active GUI, which can do as it pleases.
+ */
+ while (keypressed()) {
+ int k = readkey();
+ if (k >> 8 == KEY_ESC) {
+ if (!gui_active->parent) {
+ remove_int(timer_handler);
+ return;
+ }
+ gui_set_active(gui_active->parent);
+ } else
+ gui_key(gui_active, k);
+ }
+
+ /*
+ Test mouse.
+ Mouse clicks go to the top GUI.
+ The top GUI may pass them down recursively.
+ A GUI may be marked as mouse-active, for dragging.
+ */
+
+ /*
+ Update top GUI.
+ Update functions are called recursively.
+ This can be used for animation for example.
+ */
+ gui_update(gui);
+ }
+
+ max_time = the_time + MAX_SKIP;
+ }
+
+ gui_destroy(gui);
+}
+
+
+
+void initialise_guitop(void)
+{
+ LOCK_FUNCTION(timer_handler);
+ LOCK_VARIABLE(true_time);
+ LOCK_VARIABLE(max_time);
+}
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