aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorGerd Hoffmann <kraxel@redhat.com>2013-11-27 18:24:29 +0100
committerGerd Hoffmann <kraxel@redhat.com>2014-03-05 09:50:18 +0100
commit43579403a3d67d6aab5ceb682dedae8fde85703c (patch)
treef5560754122f66e5949a0e4ec7b6501da07c79a0
parentcd100328882ef6967918f3b47ddca9574bb31694 (diff)
input: mouse: add helpers functions to core
Likewise a bunch of helper functions to manage mouse button and movement events, again to make life easier for the ui code. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--include/ui/input.h14
-rw-r--r--ui/input.c71
2 files changed, 85 insertions, 0 deletions
diff --git a/include/ui/input.h b/include/ui/input.h
index 189f131b3b..c6f50c2440 100644
--- a/include/ui/input.h
+++ b/include/ui/input.h
@@ -8,6 +8,8 @@
#define INPUT_EVENT_MASK_REL (1<<INPUT_EVENT_KIND_REL)
#define INPUT_EVENT_MASK_ABS (1<<INPUT_EVENT_KIND_ABS)
+#define INPUT_EVENT_ABS_SIZE 0x8000
+
typedef struct QemuInputHandler QemuInputHandler;
typedef struct QemuInputHandlerState QemuInputHandlerState;
@@ -34,4 +36,16 @@ void qemu_input_event_send_key(QemuConsole *src, KeyValue *key, bool down);
void qemu_input_event_send_key_number(QemuConsole *src, int num, bool down);
void qemu_input_event_send_key_qcode(QemuConsole *src, QKeyCode q, bool down);
+InputEvent *qemu_input_event_new_btn(InputButton btn, bool down);
+void qemu_input_queue_btn(QemuConsole *src, InputButton btn, bool down);
+void qemu_input_update_buttons(QemuConsole *src, uint32_t *button_map,
+ uint32_t button_old, uint32_t button_new);
+
+int qemu_input_scale_axis(int value, int size_in, int size_out);
+InputEvent *qemu_input_event_new_move(InputEventKind kind,
+ InputAxis axis, int value);
+void qemu_input_queue_rel(QemuConsole *src, InputAxis axis, int value);
+void qemu_input_queue_abs(QemuConsole *src, InputAxis axis,
+ int value, int size);
+
#endif /* INPUT_H */
diff --git a/ui/input.c b/ui/input.c
index 61c8089749..a02172e36a 100644
--- a/ui/input.c
+++ b/ui/input.c
@@ -116,3 +116,74 @@ void qemu_input_event_send_key_qcode(QemuConsole *src, QKeyCode q, bool down)
key->qcode = q;
qemu_input_event_send_key(src, key, down);
}
+
+InputEvent *qemu_input_event_new_btn(InputButton btn, bool down)
+{
+ InputEvent *evt = g_new0(InputEvent, 1);
+ evt->btn = g_new0(InputBtnEvent, 1);
+ evt->kind = INPUT_EVENT_KIND_BTN;
+ evt->btn->button = btn;
+ evt->btn->down = down;
+ return evt;
+}
+
+void qemu_input_queue_btn(QemuConsole *src, InputButton btn, bool down)
+{
+ InputEvent *evt;
+ evt = qemu_input_event_new_btn(btn, down);
+ qemu_input_event_send(src, evt);
+ qapi_free_InputEvent(evt);
+}
+
+void qemu_input_update_buttons(QemuConsole *src, uint32_t *button_map,
+ uint32_t button_old, uint32_t button_new)
+{
+ InputButton btn;
+ uint32_t mask;
+
+ for (btn = 0; btn < INPUT_BUTTON_MAX; btn++) {
+ mask = button_map[btn];
+ if ((button_old & mask) == (button_new & mask)) {
+ continue;
+ }
+ qemu_input_queue_btn(src, btn, button_new & mask);
+ }
+}
+
+int qemu_input_scale_axis(int value, int size_in, int size_out)
+{
+ if (size_in < 2) {
+ return size_out / 2;
+ }
+ return (int64_t)value * (size_out - 1) / (size_in - 1);
+}
+
+InputEvent *qemu_input_event_new_move(InputEventKind kind,
+ InputAxis axis, int value)
+{
+ InputEvent *evt = g_new0(InputEvent, 1);
+ InputMoveEvent *move = g_new0(InputMoveEvent, 1);
+
+ evt->kind = kind;
+ evt->data = move;
+ move->axis = axis;
+ move->value = value;
+ return evt;
+}
+
+void qemu_input_queue_rel(QemuConsole *src, InputAxis axis, int value)
+{
+ InputEvent *evt;
+ evt = qemu_input_event_new_move(INPUT_EVENT_KIND_REL, axis, value);
+ qemu_input_event_send(src, evt);
+ qapi_free_InputEvent(evt);
+}
+
+void qemu_input_queue_abs(QemuConsole *src, InputAxis axis, int value, int size)
+{
+ InputEvent *evt;
+ int scaled = qemu_input_scale_axis(value, size, INPUT_EVENT_ABS_SIZE);
+ evt = qemu_input_event_new_move(INPUT_EVENT_KIND_ABS, axis, scaled);
+ qemu_input_event_send(src, evt);
+ qapi_free_InputEvent(evt);
+}