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terminal: add touch screen selection support 

Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Reviewed-by: Kristian Hogsberg <hoegsberg@gmail.com>
This commit is contained in:
Xiong Zhang 2013-11-25 18:42:52 +08:00 committed by Kristian Høgsberg
parent e955525f1a
commit 49c6aeee70
1 changed files with 63 additions and 18 deletions
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81
clients/terminal.c
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@ -467,7 +467,7 @@ struct terminal {
uint32_t hide_cursor_serial;
struct wl_data_source *selection;
uint32_t button_time;
uint32_t click_time;
int dragging, click_count;
int selection_start_x, selection_start_y;
int selection_end_x, selection_end_y;
@ -2687,6 +2687,25 @@ show_menu(struct terminal *terminal, struct input *input, uint32_t time)
entries, ARRAY_LENGTH(entries));
}
static void
click_handler(struct widget *widget, struct terminal *terminal,
struct input *input, int32_t x, int32_t y,
uint32_t time)
{
if (time - terminal->click_time < 500)
terminal->click_count++;
else
terminal->click_count = 1;
terminal->click_time = time;
terminal->dragging = (terminal->click_count - 1) % 3 + SELECT_CHAR;
terminal->selection_end_x = terminal->selection_start_x = x;
terminal->selection_end_y = terminal->selection_start_y = y;
if (recompute_selection(terminal))
widget_schedule_redraw(widget);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
@ -2694,27 +2713,13 @@ button_handler(struct widget *widget,
enum wl_pointer_button_state state, void *data)
{
struct terminal *terminal = data;
int32_t x, y;
switch (button) {
case BTN_LEFT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
if (time - terminal->button_time < 500)
terminal->click_count++;
else
terminal->click_count = 1;
terminal->button_time = time;
terminal->dragging =
(terminal->click_count - 1) % 3 + SELECT_CHAR;
input_get_position(input,
&terminal->selection_start_x,
&terminal->selection_start_y);
terminal->selection_end_x = terminal->selection_start_x;
terminal->selection_end_y = terminal->selection_start_y;
if (recompute_selection(terminal))
widget_schedule_redraw(widget);
input_get_position(input, &x, &y);
click_handler(widget, terminal, input, x, y, time);
} else {
terminal->dragging = SELECT_NONE;
}
@ -2768,6 +2773,43 @@ output_handler(struct window *window, struct output *output, int enter,
window_schedule_redraw(window);
}
static void
touch_down_handler(struct widget *widget, struct input *input,
uint32_t serial, uint32_t time, int32_t id,
float x, float y, void *data)
{
struct terminal *terminal = data;
if (id == 0)
click_handler(widget, terminal, input, x, y, time);
}
static void
touch_up_handler(struct widget *widget, struct input *input,
uint32_t serial, uint32_t time, int32_t id, void *data)
{
struct terminal *terminal = data;
if (id == 0)
terminal->dragging = SELECT_NONE;
}
static void
touch_motion_handler(struct widget *widget, struct input *input,
uint32_t time, int32_t id, float x, float y, void *data)
{
struct terminal *terminal = data;
if (terminal->dragging &&
id == 0) {
terminal->selection_end_x = (int)x;
terminal->selection_end_y = (int)y;
if (recompute_selection(terminal))
widget_schedule_redraw(widget);
}
}
#ifndef howmany
#define howmany(x, y) (((x) + ((y) - 1)) / (y))
#endif
@ -2815,6 +2857,9 @@ terminal_create(struct display *display)
widget_set_button_handler(terminal->widget, button_handler);
widget_set_enter_handler(terminal->widget, enter_handler);
widget_set_motion_handler(terminal->widget, motion_handler);
widget_set_touch_up_handler(terminal->widget, touch_up_handler);
widget_set_touch_down_handler(terminal->widget, touch_down_handler);
widget_set_touch_motion_handler(terminal->widget, touch_motion_handler);
surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 0, 0);
cr = cairo_create(surface);