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Implement tablet pads

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This commit is contained in:
Drew DeVault 2017-06-19 14:49:07 -04:00
parent e9609e9adf
commit ecb04afcad
11 changed files with 268 additions and 13 deletions
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41
example/tablet.c
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@ -21,13 +21,14 @@
struct sample_state {
struct wlr_renderer *renderer;
bool proximity, tap;
bool proximity, tap, button;
double distance;
double pressure;
double x_mm, y_mm;
double width_mm, height_mm;
struct wl_list link;
float tool_color[4];
float pad_color[4];
};
static void handle_output_frame(struct output_state *output, struct timespec *ts) {
@ -41,11 +42,10 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_renderer_begin(sample->renderer, wlr_output);
float matrix[16], view[16];
float pad_color[4] = { 0.75, 0.75, 0.75, 1.0 };
float distance = 0.8f * (1 - sample->distance);
float tool_color[4] = { distance, distance, distance, 1 };
for (size_t i = 0; i < 4; ++i) {
tool_color[i] *= sample->tool_color[i];
for (size_t i = 0; sample->button && i < 4; ++i) {
tool_color[i] = sample->tool_color[i];
}
float scale = 4;
@ -57,7 +57,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
wlr_matrix_scale(&view, pad_width, pad_height, 1);
wlr_matrix_mul(&matrix, &view, &view);
wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix);
wlr_render_colored_quad(sample->renderer, &pad_color, &matrix);
wlr_render_colored_quad(sample->renderer, &sample->pad_color, &matrix);
if (sample->proximity) {
wlr_matrix_translate(&matrix,
@ -110,12 +110,31 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
uint32_t button, enum wlr_button_state state) {
struct sample_state *sample = tstate->compositor->data;
if (state == WLR_BUTTON_RELEASED) {
float default_color[4] = { 1, 1, 1, 1 };
memcpy(sample->tool_color, default_color, 4);
sample->button = false;
} else {
sample->button = true;
for (size_t i = 0; i < 3; ++i) {
if (button % 3 == i) {
sample->tool_color[i] = 0;
} else {
sample->tool_color[i] = 1;
}
}
}
}
static void handle_pad_button(struct tablet_pad_state *pstate,
uint32_t button, enum wlr_button_state state) {
struct sample_state *sample = pstate->compositor->data;
float default_color[4] = { 0.75, 0.75, 0.75, 1.0 };
if (state == WLR_BUTTON_RELEASED) {
memcpy(sample->pad_color, default_color, sizeof(default_color));
} else {
for (size_t i = 0; i < 3; ++i) {
if (button % 3 != i) {
sample->tool_color[button % 3] = 0;
if (button % 3 == i) {
sample->pad_color[i] = 0;
} else {
sample->pad_color[i] = 1;
}
}
}
@ -123,7 +142,8 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
int main(int argc, char *argv[]) {
struct sample_state state = {
.tool_color = { 1, 1, 1, 1 }
.tool_color = { 1, 1, 1, 1 },
.pad_color = { 0.75, 0.75, 0.75, 1.0 }
};
struct compositor_state compositor;
@ -133,6 +153,7 @@ int main(int argc, char *argv[]) {
compositor.tool_axis_cb = handle_tool_axis;
compositor.tool_proximity_cb = handle_tool_proximity;
compositor.tool_button_cb = handle_tool_button;
compositor.pad_button_cb = handle_pad_button;
state.renderer = wlr_gles3_renderer_init();