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finish up viewport widget with screen previews

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This commit is contained in:
Jason Francis
2019-07-26 20:26:37 -04:00
parent dcf130616f
commit 43a2d18075
11 changed files with 1927 additions and 157 deletions
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807
src/main.c
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@@ -25,6 +25,7 @@
#include <gdk/gdkwayland.h>
#include "wdisplay.h"
#include "glviewport.h"
__attribute__((noreturn)) void wd_fatal_error(int status, const char *message) {
GtkWindow *parent = gtk_application_get_active_window(GTK_APPLICATION(g_application_get_default()));
@@ -180,6 +181,208 @@ static gboolean apply_done_reset(gpointer data) {
return FALSE;
}
static void update_scroll_size(struct wd_state *state) {
state->render.viewport_width = gtk_widget_get_allocated_width(state->canvas);
state->render.viewport_height = gtk_widget_get_allocated_height(state->canvas);
GtkAdjustment *scroll_x_adj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *scroll_y_adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
int scroll_x_upper = state->render.width;
int scroll_y_upper = state->render.height;
gtk_adjustment_set_upper(scroll_x_adj, MAX(0, scroll_x_upper));
gtk_adjustment_set_upper(scroll_y_adj, MAX(0, scroll_y_upper));
gtk_adjustment_set_page_size(scroll_x_adj, state->render.viewport_width);
gtk_adjustment_set_page_size(scroll_y_adj, state->render.viewport_height);
gtk_adjustment_set_page_increment(scroll_x_adj, state->render.viewport_width);
gtk_adjustment_set_page_increment(scroll_y_adj, state->render.viewport_height);
gtk_adjustment_set_step_increment(scroll_x_adj, state->render.viewport_width / 10);
gtk_adjustment_set_step_increment(scroll_y_adj, state->render.viewport_height / 10);
}
/*
* Recalculates the desired canvas size, accounting for zoom + margins.
*/
static void update_canvas_size(struct wd_state *state) {
int xmin = 0;
int xmax = 0;
int ymin = 0;
int ymax = 0;
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
int w = head->custom_mode.width;
int h = head->custom_mode.height;
if (head->enabled && head->mode != NULL) {
w = head->mode->width;
h = head->mode->height;
}
if (head->scale > 0.) {
w /= head->scale;
h /= head->scale;
}
int x2 = head->x + w;
int y2 = head->y + h;
xmin = MIN(xmin, head->x);
xmax = MAX(xmax, x2);
ymin = MIN(ymin, head->y);
ymax = MAX(ymax, y2);
}
// update canvas sizings
state->render.x_origin = floor(xmin * state->zoom) - CANVAS_MARGIN;
state->render.y_origin = floor(ymin * state->zoom) - CANVAS_MARGIN;
state->render.width = ceil((xmax - xmin) * state->zoom) + CANVAS_MARGIN * 2;
state->render.height = ceil((ymax - ymin) * state->zoom) + CANVAS_MARGIN * 2;
update_scroll_size(state);
}
static void cache_scroll(struct wd_state *state) {
GtkAdjustment *scroll_x_adj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *scroll_y_adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
state->render.scroll_x = gtk_adjustment_get_value(scroll_x_adj);
state->render.scroll_y = gtk_adjustment_get_value(scroll_y_adj);
}
static gboolean redraw_canvas(GtkWidget *widget, GdkFrameClock *frame_clock, gpointer data);
static void update_tick_callback(struct wd_state *state) {
bool any_animate = false;
for (int i = 0; i < state->render.head_count; i++) {
struct wd_render_head_data *head = &state->render.heads[i];
if (state->render.updated_at < head->transition_begin + HOVER_USECS) {
any_animate = true;
break;
}
}
if (!any_animate && !state->capture) {
if (state->canvas_tick != -1) {
gtk_widget_remove_tick_callback(state->canvas, state->canvas_tick);
state->canvas_tick = -1;
}
} else if (state->canvas_tick == -1) {
state->canvas_tick =
gtk_widget_add_tick_callback(state->canvas, redraw_canvas, state, NULL);
}
gtk_gl_area_queue_render(GTK_GL_AREA(state->canvas));
gtk_gl_area_set_auto_render(GTK_GL_AREA(state->canvas), state->capture);
}
static void update_cursor(struct wd_state *state) {
bool any_hovered = false;
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
struct wd_render_head_data *render = head->render;
if (render != NULL && render->hovered) {
any_hovered = true;
break;
}
}
GdkWindow *window = gtk_widget_get_window(state->canvas);
if (any_hovered) {
gdk_window_set_cursor(window, state->grab_cursor);
} else if (state->clicked != NULL) {
gdk_window_set_cursor(window, state->grabbing_cursor);
} else if (state->panning) {
gdk_window_set_cursor(window, state->move_cursor);
} else {
gdk_window_set_cursor(window, NULL);
}
}
static void update_hovered(struct wd_state *state) {
GdkDisplay *display = gdk_display_get_default();
GdkWindow *window = gtk_widget_get_window(state->canvas);
if (!gtk_widget_get_realized(state->canvas)) {
return;
}
GdkFrameClock *clock = gtk_widget_get_frame_clock(state->canvas);
uint64_t tick = gdk_frame_clock_get_frame_time(clock);
g_autoptr(GList) seats = gdk_display_list_seats(display);
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
struct wd_render_head_data *render = head->render;
if (render != NULL) {
bool init_hovered = render->hovered;
render->hovered = false;
if (state->clicked == head) {
render->hovered = true;
} else if (state->clicked == NULL) {
for (GList *iter = seats; iter != NULL; iter = iter->next) {
double mouse_x;
double mouse_y;
GdkDevice *pointer = gdk_seat_get_pointer(GDK_SEAT(iter->data));
gdk_window_get_device_position_double(window, pointer, &mouse_x, &mouse_y, NULL);
if (mouse_x >= render->x1 && mouse_x < render->x2 &&
mouse_y >= render->y1 && mouse_y < render->y2) {
render->hovered = true;
break;
}
}
}
if (init_hovered != render->hovered) {
render->transition_begin = tick;
}
}
}
update_cursor(state);
update_tick_callback(state);
}
static inline void color_to_float_array(GtkStyleContext *ctx,
const char *color_name, float out[4]) {
GdkRGBA color;
gtk_style_context_lookup_color(ctx, color_name, &color);
out[0] = color.red;
out[1] = color.green;
out[2] = color.blue;
out[3] = color.alpha;
}
static void queue_canvas_draw(struct wd_state *state) {
GtkStyleContext *style_ctx = gtk_widget_get_style_context(state->canvas);
color_to_float_array(style_ctx,
"theme_fg_color", state->render.fg_color);
color_to_float_array(style_ctx,
"theme_bg_color", state->render.bg_color);
color_to_float_array(style_ctx,
"borders", state->render.border_color);
color_to_float_array(style_ctx,
"theme_selected_bg_color", state->render.selection_color);
cache_scroll(state);
state->render.head_count = 0;
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form_iter->data), "builder"));
gboolean enabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "enabled")));
if (enabled) {
int x = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "pos_x")));
int y = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "pos_y")));
int w = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "width")));
int h = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "height")));
double scale = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "scale")));
if (scale <= 0.)
scale = 1.;
struct wd_head *head = g_object_get_data(G_OBJECT(form_iter->data), "head");
struct wd_render_head_data *render = &state->render.heads[state->render.head_count];
render->x1 = floor(x * state->zoom - state->render.scroll_x - state->render.x_origin);
render->y1 = floor(y * state->zoom - state->render.scroll_y - state->render.y_origin);
render->x2 = floor(render->x1 + w * state->zoom / scale);
render->y2 = floor(render->y1 + h * state->zoom / scale);
head->render = render;
state->render.head_count++;
if (state->render.head_count >= HEADS_MAX)
break;
}
}
gtk_gl_area_queue_render(GTK_GL_AREA(state->canvas));
}
// BEGIN FORM CALLBACKS
static void show_apply(struct wd_state *state) {
const gchar *page = "title";
@@ -191,7 +394,12 @@ static void show_apply(struct wd_state *state) {
}
}
gtk_stack_set_visible_child_name(GTK_STACK(state->header_stack), page);
gtk_widget_queue_draw(state->canvas);
}
static void update_ui(struct wd_state *state) {
show_apply(state);
update_canvas_size(state);
queue_canvas_draw(state);
}
static void update_sensitivity(GtkWidget *form) {
@@ -226,7 +434,7 @@ static void select_rotate_option(GtkWidget *form, GtkWidget *model_button) {
static void rotate_selected(GSimpleAction *action, GVariant *param, gpointer data) {
select_rotate_option(GTK_WIDGET(data), g_object_get_data(G_OBJECT(action), "widget"));
const struct wd_head *head = g_object_get_data(G_OBJECT(data), "head");
show_apply(head->state);
update_ui(head->state);
}
static void select_mode_option(GtkWidget *form, int32_t w, int32_t h, int32_t r) {
@@ -257,47 +465,10 @@ static void mode_selected(GSimpleAction *action, GVariant *param, gpointer data)
update_mode_entries(form, mode->width, mode->height, mode->refresh);
select_mode_option(form, mode->width, mode->height, mode->refresh);
show_apply(head->state);
update_ui(head->state);
}
// END FORM CALLBACKS
/*
* Recalculates the desired canvas size, accounting for zoom + margins.
*/
static void update_canvas_size(struct wd_state *state) {
int xmin = 0;
int xmax = 0;
int ymin = 0;
int ymax = 0;
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
int w = head->custom_mode.width;
int h = head->custom_mode.height;
if (head->enabled && head->mode != NULL) {
w = head->mode->width;
h = head->mode->height;
}
if (head->scale > 0.) {
w /= head->scale;
h /= head->scale;
}
int x2 = head->x + w;
int y2 = head->y + h;
xmin = MIN(xmin, head->x);
xmax = MAX(xmax, x2);
ymin = MIN(ymin, head->y);
ymax = MAX(ymax, y2);
}
// update canvas sizings
state->xorigin = floor(xmin * state->zoom) - CANVAS_MARGIN;
state->yorigin = floor(ymin * state->zoom) - CANVAS_MARGIN;
int heads_width = ceil((xmax - xmin) * state->zoom) + CANVAS_MARGIN * 2;
int heads_height = ceil((ymax - ymin) * state->zoom) + CANVAS_MARGIN * 2;
gtk_layout_set_size(GTK_LAYOUT(state->canvas), heads_width, heads_height);
}
static void clear_menu(GtkWidget *box, GActionMap *action_map) {
g_autoptr(GList) children = gtk_container_get_children(GTK_CONTAINER(box));
for (GList *child = children; child != NULL; child = child->next) {
@@ -305,6 +476,7 @@ static void clear_menu(GtkWidget *box, GActionMap *action_map) {
gtk_container_remove(GTK_CONTAINER(box), GTK_WIDGET(child->data));
}
}
static void update_head_form(GtkWidget *form, unsigned int fields) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
GtkWidget *description = GTK_WIDGET(gtk_builder_get_object(builder, "description"));
@@ -368,7 +540,18 @@ static void update_head_form(GtkWidget *form, unsigned int fields) {
w = head->mode->width;
h = head->mode->height;
r = head->mode->refresh;
} else if (!head->enabled && w == 0 && h == 0) {
struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
if (mode->preferred) {
w = mode->width;
h = mode->height;
r = mode->refresh;
break;
}
}
}
update_mode_entries(form, w, h, r);
select_mode_option(form, w, h, r);
gtk_widget_show_all(mode_box);
@@ -389,8 +572,7 @@ static void update_head_form(GtkWidget *form, unsigned int fields) {
if (fields & WD_FIELD_ENABLED) {
update_sensitivity(form);
}
show_apply(head->state);
gtk_widget_queue_draw(head->state->canvas);
update_ui(head->state);
}
void wd_ui_reset_heads(struct wd_state *state) {
@@ -437,14 +619,14 @@ void wd_ui_reset_heads(struct wd_state *state) {
gtk_widget_show_all(form);
g_signal_connect_swapped(gtk_builder_get_object(builder, "enabled"), "toggled", G_CALLBACK(update_sensitivity), form);
g_signal_connect_swapped(gtk_builder_get_object(builder, "enabled"), "toggled", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "scale"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "pos_x"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "pos_y"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "width"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "height"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "refresh"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "flipped"), "toggled", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "enabled"), "toggled", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "scale"), "value-changed", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "pos_x"), "value-changed", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "pos_y"), "value-changed", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "width"), "value-changed", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "height"), "value-changed", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "refresh"), "value-changed", G_CALLBACK(update_ui), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "flipped"), "toggled", G_CALLBACK(update_ui), state);
} else {
form = form_iter->data;
@@ -458,13 +640,10 @@ void wd_ui_reset_heads(struct wd_state *state) {
g_object_unref(builder);
gtk_container_remove(GTK_CONTAINER(state->stack), GTK_WIDGET(form_iter->data));
}
gtk_widget_queue_draw(state->canvas);
update_canvas_size(state);
queue_canvas_draw(state);
}
/*
* Updates the UI form for a single head. Useful for when the compositor notifies us of
* updated configuration caused by another program.
*/
void wd_ui_reset_head(const struct wd_head *head, unsigned int fields) {
if (head->state->stack == NULL) {
return;
@@ -474,8 +653,11 @@ void wd_ui_reset_head(const struct wd_head *head, unsigned int fields) {
const struct wd_head *other = g_object_get_data(G_OBJECT(form_iter->data), "head");
if (head == other) {
update_head_form(GTK_WIDGET(form_iter->data), fields);
break;
}
}
update_canvas_size(head->state);
queue_canvas_draw(head->state);
}
void wd_ui_reset_all(struct wd_state *state) {
@@ -484,6 +666,8 @@ void wd_ui_reset_all(struct wd_state *state) {
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
update_head_form(GTK_WIDGET(form_iter->data), WD_FIELDS_ALL);
}
update_canvas_size(state);
queue_canvas_draw(state);
}
void wd_ui_apply_done(struct wd_state *state, struct wl_list *outputs) {
@@ -509,51 +693,398 @@ void wd_ui_show_error(struct wd_state *state, const char *message) {
}
// BEGIN GLOBAL CALLBACKS
static void cleanup(GtkWidget *window, gpointer state) {
g_free(state);
static void cleanup(GtkWidget *window, gpointer data) {
struct wd_state *state = data;
g_object_unref(state->grab_cursor);
g_object_unref(state->grabbing_cursor);
g_object_unref(state->move_cursor);
wd_state_destroy(state);
}
gboolean draw(GtkWidget *widget, cairo_t *cr, gpointer data) {
static void monitor_added(GdkDisplay *display, GdkMonitor *monitor, gpointer data) {
wd_add_output(data, gdk_wayland_monitor_get_wl_output(monitor));
}
static void monitor_removed(GdkDisplay *display, GdkMonitor *monitor, gpointer data) {
struct wl_display *wl_display = gdk_wayland_display_get_wl_display(display);
wd_remove_output(data, gdk_wayland_monitor_get_wl_output(monitor), wl_display);
}
static void canvas_realize(GtkWidget *widget, gpointer data) {
gtk_gl_area_make_current(GTK_GL_AREA(widget));
if (gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
return;
}
struct wd_state *state = data;
state->gl_data = wd_gl_setup();
}
static inline bool size_changed(const struct wd_render_head_data *render) {
return render->x2 - render->x1 != render->tex_width ||
render->y2 - render->y1 != render->tex_height;
}
static inline void cairo_set_source_color(cairo_t *cr, float color[4]) {
cairo_set_source_rgba(cr, color[0], color[1], color[2], color[3]);
}
static void update_zoom(struct wd_state *state) {
g_autofree gchar *zoom_percent = g_strdup_printf("%.f%%", state->zoom * 100.);
gtk_button_set_label(GTK_BUTTON(state->zoom_reset), zoom_percent);
gtk_widget_set_sensitive(state->zoom_in, state->zoom < MAX_ZOOM);
gtk_widget_set_sensitive(state->zoom_out, state->zoom > MIN_ZOOM);
update_canvas_size(state);
GtkStyleContext *style_ctx = gtk_widget_get_style_context(widget);
GtkAdjustment *scroll_x_adj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *scroll_y_adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
double scroll_x = gtk_adjustment_get_value(scroll_x_adj);
double scroll_y = gtk_adjustment_get_value(scroll_y_adj);
int width = gtk_widget_get_allocated_width(widget);
int height = gtk_widget_get_allocated_height(widget);
queue_canvas_draw(state);
}
GdkRGBA border;
gtk_style_context_lookup_color(style_ctx, "borders", &border);
static void zoom_to(struct wd_state *state, double zoom) {
state->zoom = zoom;
state->zoom = MAX(state->zoom, MIN_ZOOM);
state->zoom = MIN(state->zoom, MAX_ZOOM);
update_zoom(state);
}
gdk_cairo_set_source_rgba(cr, &border);
cairo_set_line_width(cr, .5);
static void zoom_out(struct wd_state *state) {
zoom_to(state, state->zoom * 0.75);
}
gtk_render_background(style_ctx, cr, 0, 0, width, height);
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form_iter->data), "builder"));
gboolean enabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "enabled")));
if (enabled) {
int x = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "pos_x")));
int y = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "pos_y")));
int w = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "width")));
int h = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "height")));
double scale = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "scale")));
if (scale <= 0.) scale = 1.;
cairo_rectangle(cr,
x * state->zoom + .5 - scroll_x - state->xorigin,
y * state->zoom + .5 - scroll_y - state->yorigin,
w * state->zoom / scale,
h * state->zoom / scale);
cairo_stroke(cr);
static void zoom_reset(struct wd_state *state) {
zoom_to(state, DEFAULT_ZOOM);
}
static void zoom_in(struct wd_state *state) {
zoom_to(state, state->zoom / 0.75);
}
#define TEXT_MARGIN 5
static cairo_surface_t *draw_head(PangoContext *pango,
struct wd_render_data *info, const char *name,
unsigned width, unsigned height) {
cairo_surface_t *surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
width, height);
cairo_t *cr = cairo_create(surface);
cairo_rectangle(cr, 0., 0., width, height);
cairo_set_source_color(cr, info->border_color);
cairo_fill(cr);
cairo_set_line_width(cr, 1.);
cairo_rectangle(cr, 0, 0, width, height);
cairo_set_source_color(cr, info->fg_color);
cairo_stroke(cr);
PangoLayout *layout = pango_layout_new(pango);
pango_layout_set_text(layout, name, -1);
int text_width = pango_units_from_double(width - TEXT_MARGIN * 2);
int text_height = pango_units_from_double(height - TEXT_MARGIN * 2);
pango_layout_set_width(layout, MAX(text_width, 0));
pango_layout_set_height(layout, MAX(text_height, 0));
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END);
pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
cairo_set_source_color(cr, info->fg_color);
pango_layout_get_size(layout, &text_width, &text_height);
cairo_move_to(cr, TEXT_MARGIN, (height - PANGO_PIXELS(text_height)) / 2);
pango_cairo_show_layout(cr, layout);
g_object_unref(layout);
cairo_destroy(cr);
cairo_surface_flush(surface);
return surface;
}
static void canvas_render(GtkGLArea *area, GdkGLContext *context, gpointer data) {
struct wd_state *state = data;
PangoContext *pango = gtk_widget_get_pango_context(state->canvas);
GdkFrameClock *clock = gtk_widget_get_frame_clock(state->canvas);
uint64_t tick = gdk_frame_clock_get_frame_time(clock);
wd_capture_frame(state);
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
struct wd_render_head_data *render = head->render;
struct wd_output *output = wd_find_output(state, head);
struct wd_frame *frame = NULL;
if (output != NULL && !wl_list_empty(&output->frames)) {
frame = wl_container_of(output->frames.prev, frame, link);
}
if (render != NULL) {
if (state->capture && frame != NULL && frame->pixels != NULL) {
if (frame->tick > render->updated_at) {
render->tex_stride = frame->stride;
render->tex_width = frame->width;
render->tex_height = frame->height;
render->pixels = frame->pixels;
render->preview = true;
render->updated_at = tick;
render->y_invert = frame->y_invert;
}
} else if (render->preview
|| render->pixels == NULL || size_changed(render)) {
render->tex_width = render->x2 - render->x1;
render->tex_height = render->y2 - render->y1;
render->preview = false;
if (head->surface != NULL) {
cairo_surface_destroy(head->surface);
}
head->surface = draw_head(pango, &state->render, head->name,
render->tex_width, render->tex_height);
render->pixels = cairo_image_surface_get_data(head->surface);
render->tex_stride = cairo_image_surface_get_stride(head->surface);
render->updated_at = tick;
render->y_invert = false;
}
}
}
wd_gl_render(state->gl_data, &state->render, tick);
state->render.updated_at = tick;
}
static void canvas_unrealize(GtkWidget *widget, gpointer data) {
gtk_gl_area_make_current(GTK_GL_AREA(widget));
if (gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL) {
return;
}
struct wd_state *state = data;
GdkDisplay *gdk_display = gdk_display_get_default();
struct wl_display *display = gdk_wayland_display_get_wl_display(gdk_display);
wd_capture_wait(state, display);
wd_gl_cleanup(state->gl_data);
state->gl_data = NULL;
}
static gboolean canvas_click(GtkWidget *widget, GdkEvent *event,
gpointer data) {
struct wd_state *state = data;
if (event->button.type == GDK_BUTTON_PRESS) {
if (event->button.button == 1) {
int i = 0;
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
struct wd_render_head_data *render = head->render;
if (render != NULL) {
double mouse_x = event->button.x;
double mouse_y = event->button.y;
if (mouse_x >= render->x1 && mouse_x < render->x2 &&
mouse_y >= render->y1 && mouse_y < render->y2) {
state->clicked = head;
state->click_offset.x = event->button.x - render->x1;
state->click_offset.y = event->button.y - render->y1;
break;
}
}
i++;
}
if (state->clicked != NULL) {
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
const struct wd_head *other = g_object_get_data(G_OBJECT(form_iter->data), "head");
if (state->clicked == other) {
gtk_stack_set_visible_child(GTK_STACK(state->stack), form_iter->data);
break;
}
}
}
} else if (event->button.button == 2) {
state->panning = true;
state->pan_last.x = event->button.x;
state->pan_last.y = event->button.y;
}
}
return TRUE;
}
static gboolean canvas_release(GtkWidget *widget, GdkEvent *event,
gpointer data) {
struct wd_state *state = data;
if (event->button.button == 1) {
state->clicked = NULL;
}
if (event->button.button == 2) {
state->panning = false;
}
update_cursor(state);
return TRUE;
}
#define SNAP_DIST 6.
static gboolean canvas_motion(GtkWidget *widget, GdkEvent *event,
gpointer data) {
struct wd_state *state = data;
if (event->motion.state & GDK_BUTTON2_MASK) {
GtkAdjustment *xadj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *yadj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
double delta_x = event->motion.x - state->pan_last.x;
double delta_y = event->motion.y - state->pan_last.y;
gtk_adjustment_set_value(xadj, gtk_adjustment_get_value(xadj) + delta_x);
gtk_adjustment_set_value(yadj, gtk_adjustment_get_value(yadj) + delta_y);
state->pan_last.x = event->motion.x;
state->pan_last.y = event->motion.y;
queue_canvas_draw(state);
}
if ((event->motion.state & GDK_BUTTON1_MASK) && state->clicked != NULL) {
GtkWidget *form = NULL;
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
const struct wd_head *other = g_object_get_data(G_OBJECT(form_iter->data), "head");
if (state->clicked == other) {
form = form_iter->data;
break;
}
}
if (form != NULL) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
struct wd_point size = {
.x = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "width"))),
.y = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "height"))),
};
struct wd_point tl = {
.x = (event->motion.x - state->click_offset.x
+ state->render.x_origin + state->render.scroll_x) / state->zoom,
.y = (event->motion.y - state->click_offset.y
+ state->render.y_origin + state->render.scroll_y) / state->zoom
};
const struct wd_point br = {
.x = tl.x + size.x,
.y = tl.y + size.y
};
struct wd_point new_pos = tl;
float snap = SNAP_DIST / state->zoom;
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
const struct wd_head *other = g_object_get_data(G_OBJECT(form_iter->data), "head");
if (other != state->clicked && !(event->motion.state & GDK_SHIFT_MASK)) {
GtkBuilder *other_builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form_iter->data), "builder"));
double x1 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(other_builder, "pos_x")));
double y1 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(other_builder, "pos_y")));
double x2 = x1 + gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(other_builder, "width")));
double y2 = y1 + gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(other_builder, "height")));
if (fabs(br.x) <= snap)
new_pos.x = -size.x;
if (fabs(br.y) <= snap)
new_pos.y = -size.y;
if (fabs(br.x - x1) <= snap)
new_pos.x = x1 - size.x;
if (fabs(br.x - x2) <= snap)
new_pos.x = x2 - size.x;
if (fabs(br.y - y1) <= snap)
new_pos.y = y1 - size.y;
if (fabs(br.y - y2) <= snap)
new_pos.y = y2 - size.y;
if (fabs(tl.x) <= snap)
new_pos.x = 0.;
if (fabs(tl.y) <= snap)
new_pos.y = 0.;
if (fabs(tl.x - x1) <= snap)
new_pos.x = x1;
if (fabs(tl.x - x2) <= snap)
new_pos.x = x2;
if (fabs(tl.y - y1) <= snap)
new_pos.y = y1;
if (fabs(tl.y - y2) <= snap)
new_pos.y = y2;
}
}
GtkWidget *pos_x = GTK_WIDGET(gtk_builder_get_object(builder, "pos_x"));
GtkWidget *pos_y = GTK_WIDGET(gtk_builder_get_object(builder, "pos_y"));
gtk_spin_button_set_value(GTK_SPIN_BUTTON(pos_x), new_pos.x);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(pos_y), new_pos.y);
}
}
update_hovered(state);
return TRUE;
}
static gboolean canvas_enter(GtkWidget *widget, GdkEvent *event,
gpointer data) {
struct wd_state *state = data;
if (!(event->crossing.state & GDK_BUTTON1_MASK)) {
state->clicked = NULL;
}
if (!(event->crossing.state & GDK_BUTTON2_MASK)) {
state->panning = false;
}
update_cursor(state);
return TRUE;
}
static gboolean canvas_leave(GtkWidget *widget, GdkEvent *event,
gpointer data) {
struct wd_state *state = data;
for (int i = 0; i < state->render.head_count; i++) {
struct wd_render_head_data *head = &state->render.heads[i];
head->hovered = false;
}
update_tick_callback(state);
return TRUE;
}
static gboolean canvas_scroll(GtkWidget *widget, GdkEvent *event,
gpointer data) {
struct wd_state *state = data;
if (event->scroll.state & GDK_CONTROL_MASK) {
switch (event->scroll.direction) {
case GDK_SCROLL_UP:
zoom_in(state);
break;
case GDK_SCROLL_DOWN:
zoom_out(state);
break;
case GDK_SCROLL_SMOOTH:
if (event->scroll.delta_y)
zoom_to(state, state->zoom * pow(0.75, event->scroll.delta_y));
break;
default:
break;
}
} else {
GtkAdjustment *xadj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *yadj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
double xstep = gtk_adjustment_get_step_increment(xadj);
double ystep = gtk_adjustment_get_step_increment(yadj);
switch (event->scroll.direction) {
case GDK_SCROLL_UP:
gtk_adjustment_set_value(yadj, gtk_adjustment_get_value(yadj) - ystep);
break;
case GDK_SCROLL_DOWN:
gtk_adjustment_set_value(yadj, gtk_adjustment_get_value(yadj) + ystep);
break;
case GDK_SCROLL_LEFT:
gtk_adjustment_set_value(xadj, gtk_adjustment_get_value(xadj) - xstep);
break;
case GDK_SCROLL_RIGHT:
gtk_adjustment_set_value(xadj, gtk_adjustment_get_value(xadj) + xstep);
break;
case GDK_SCROLL_SMOOTH:
if (event->scroll.delta_x)
gtk_adjustment_set_value(xadj, gtk_adjustment_get_value(xadj) + xstep * event->scroll.delta_x);
if (event->scroll.delta_y)
gtk_adjustment_set_value(yadj, gtk_adjustment_get_value(yadj) + ystep * event->scroll.delta_y);
break;
default:
break;
}
}
return FALSE;
}
static void canvas_resize(GtkWidget *widget, GdkRectangle *allocation,
gpointer data) {
struct wd_state *state = data;
update_scroll_size(state);
}
static void cancel_changes(GtkButton *button, gpointer data) {
struct wd_state *state = data;
gtk_stack_set_visible_child_name(GTK_STACK(state->header_stack), "title");
@@ -564,34 +1095,6 @@ static void apply_changes(GtkButton *button, gpointer data) {
apply_state(data);
}
static void update_zoom(struct wd_state *state) {
g_autofree gchar *zoom_percent = g_strdup_printf("%.f%%", state->zoom * 100.);
gtk_button_set_label(GTK_BUTTON(state->zoom_reset), zoom_percent);
gtk_widget_set_sensitive(state->zoom_in, state->zoom < MAX_ZOOM);
gtk_widget_set_sensitive(state->zoom_out, state->zoom > MIN_ZOOM);
gtk_widget_queue_draw(state->canvas);
}
static void zoom_out(GtkButton *button, gpointer data) {
struct wd_state *state = data;
state->zoom *= 0.75;
state->zoom = MAX(state->zoom, MIN_ZOOM);
update_zoom(state);
}
static void zoom_reset(GtkButton *button, gpointer data) {
struct wd_state *state = data;
state->zoom = DEFAULT_ZOOM;
update_zoom(state);
}
static void zoom_in(GtkButton *button, gpointer data) {
struct wd_state *state = data;
state->zoom /= 0.75;
state->zoom = MIN(state->zoom, MAX_ZOOM);
update_zoom(state);
}
static void info_response(GtkInfoBar *info_bar, gint response_id, gpointer data) {
gtk_info_bar_set_revealed(info_bar, FALSE);
}
@@ -610,28 +1113,47 @@ static void auto_apply_selected(GSimpleAction *action, GVariant *param, gpointer
g_simple_action_set_state(action, g_variant_new_boolean(state->autoapply));
}
static gboolean redraw_canvas(GtkWidget *widget, GdkFrameClock *frame_clock, gpointer data) {
struct wd_state *state = data;
if (state->capture) {
wd_capture_frame(state);
}
queue_canvas_draw(state);
return G_SOURCE_CONTINUE;
}
static void capture_selected(GSimpleAction *action, GVariant *param, gpointer data) {
struct wd_state *state = data;
state->capture = !state->capture;
g_simple_action_set_state(action, g_variant_new_boolean(state->capture));
update_tick_callback(state);
}
static void activate(GtkApplication* app, gpointer user_data) {
GdkDisplay *gdk_display = gdk_display_get_default();
if (!GDK_IS_WAYLAND_DISPLAY(gdk_display)) {
wd_fatal_error(1, "This program is only usable on Wayland sessions.");
}
struct wd_state *state = g_new0(struct wd_state, 1);
struct wd_state *state = wd_state_create();
state->zoom = DEFAULT_ZOOM;
wl_list_init(&state->heads);
state->canvas_tick = -1;
GtkCssProvider *css_provider = gtk_css_provider_new();
gtk_css_provider_load_from_resource(css_provider, "/style.css");
gtk_style_context_add_provider_for_screen(gdk_screen_get_default(), GTK_STYLE_PROVIDER(css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
state->grab_cursor = gdk_cursor_new_from_name(gdk_display, "grab");
state->grabbing_cursor = gdk_cursor_new_from_name(gdk_display, "grabbing");
state->move_cursor = gdk_cursor_new_from_name(gdk_display, "move");
GtkBuilder *builder = gtk_builder_new_from_resource("/wdisplay.ui");
GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "heads_window"));
state->header_stack = GTK_WIDGET(gtk_builder_get_object(builder, "header_stack"));
state->stack_switcher = GTK_WIDGET(gtk_builder_get_object(builder, "heads_stack_switcher"));
state->stack = GTK_WIDGET(gtk_builder_get_object(builder, "heads_stack"));
state->scroller = GTK_WIDGET(gtk_builder_get_object(builder, "heads_scroll"));
state->canvas = GTK_WIDGET(gtk_builder_get_object(builder, "heads_layout"));
state->spinner = GTK_WIDGET(gtk_builder_get_object(builder, "spinner"));
state->zoom_out = GTK_WIDGET(gtk_builder_get_object(builder, "zoom_out"));
state->zoom_reset = GTK_WIDGET(gtk_builder_get_object(builder, "zoom_reset"));
@@ -640,7 +1162,7 @@ static void activate(GtkApplication* app, gpointer user_data) {
state->info_bar = GTK_WIDGET(gtk_builder_get_object(builder, "heads_info"));
state->info_label = GTK_WIDGET(gtk_builder_get_object(builder, "heads_info_label"));
state->menu_button = GTK_WIDGET(gtk_builder_get_object(builder, "menu_button"));
gtk_builder_add_callback_symbol(builder, "heads_draw", G_CALLBACK(draw));
gtk_builder_add_callback_symbol(builder, "apply_changes", G_CALLBACK(apply_changes));
gtk_builder_add_callback_symbol(builder, "cancel_changes", G_CALLBACK(cancel_changes));
gtk_builder_add_callback_symbol(builder, "zoom_out", G_CALLBACK(zoom_out));
@@ -650,6 +1172,31 @@ static void activate(GtkApplication* app, gpointer user_data) {
gtk_builder_add_callback_symbol(builder, "destroy", G_CALLBACK(cleanup));
gtk_builder_connect_signals(builder, state);
gtk_box_set_homogeneous(GTK_BOX(gtk_builder_get_object(builder, "zoom_box")), FALSE);
state->canvas = wd_gl_viewport_new();
gtk_container_add(GTK_CONTAINER(state->scroller), state->canvas);
gtk_widget_add_events(state->canvas, GDK_POINTER_MOTION_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_SCROLL_MASK
| GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);
g_signal_connect(state->canvas, "realize", G_CALLBACK(canvas_realize), state);
g_signal_connect(state->canvas, "render", G_CALLBACK(canvas_render), state);
g_signal_connect(state->canvas, "unrealize", G_CALLBACK(canvas_unrealize), state);
g_signal_connect(state->canvas, "button-press-event", G_CALLBACK(canvas_click), state);
g_signal_connect(state->canvas, "button-release-event", G_CALLBACK(canvas_release), state);
g_signal_connect(state->canvas, "enter-notify-event", G_CALLBACK(canvas_enter), state);
g_signal_connect(state->canvas, "leave-notify-event", G_CALLBACK(canvas_leave), state);
g_signal_connect(state->canvas, "motion-notify-event", G_CALLBACK(canvas_motion), state);
g_signal_connect(state->canvas, "scroll-event", G_CALLBACK(canvas_scroll), state);
g_signal_connect(state->canvas, "size-allocate", G_CALLBACK(canvas_resize), state);
gtk_gl_area_set_use_es(GTK_GL_AREA(state->canvas), TRUE);
gtk_gl_area_set_has_alpha(GTK_GL_AREA(state->canvas), TRUE);
gtk_gl_area_set_auto_render(GTK_GL_AREA(state->canvas), state->capture);
GtkAdjustment *scroll_x_adj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *scroll_y_adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
g_signal_connect_swapped(scroll_x_adj, "value-changed", G_CALLBACK(queue_canvas_draw), state);
g_signal_connect_swapped(scroll_y_adj, "value-changed", G_CALLBACK(queue_canvas_draw), state);
update_zoom(state);
GSimpleActionGroup *main_actions = g_simple_action_group_new();
@@ -661,6 +1208,11 @@ static void activate(GtkApplication* app, gpointer user_data) {
g_signal_connect(autoapply_action, "activate", G_CALLBACK(auto_apply_selected), state);
g_action_map_add_action(G_ACTION_MAP(main_actions), G_ACTION(autoapply_action));
GSimpleAction *capture_action = g_simple_action_new_stateful("capture-screens", NULL,
g_variant_new_boolean(state->capture));
g_signal_connect(capture_action, "activate", G_CALLBACK(capture_selected), state);
g_action_map_add_action(G_ACTION_MAP(main_actions), G_ACTION(capture_action));
/* first child of GtkInfoBar is always GtkRevealer */
g_autoptr(GList) info_children = gtk_container_get_children(GTK_CONTAINER(state->info_bar));
g_signal_connect(info_children->data, "notify::child-revealed", G_CALLBACK(info_bar_animation_done), state);
@@ -671,6 +1223,23 @@ static void activate(GtkApplication* app, gpointer user_data) {
if (state->output_manager == NULL) {
wd_fatal_error(1, "Compositor doesn't support wlr-output-management-unstable-v1");
}
if (state->xdg_output_manager == NULL) {
wd_fatal_error(1, "Compositor doesn't support xdg-output-unstable-v1");
}
if (state->copy_manager == NULL) {
state->capture = false;
g_simple_action_set_state(capture_action, g_variant_new_boolean(state->capture));
g_simple_action_set_enabled(capture_action, FALSE);
}
int n_monitors = gdk_display_get_n_monitors(gdk_display);
for (int i = 0; i < n_monitors; i++) {
GdkMonitor *monitor = gdk_display_get_monitor(gdk_display, i);
wd_add_output(state, gdk_wayland_monitor_get_wl_output(monitor));
}
g_signal_connect(gdk_display, "monitor-added", G_CALLBACK(monitor_added), state);
g_signal_connect(gdk_display, "monitor-removed", G_CALLBACK(monitor_removed), state);
gtk_application_add_window(app, GTK_WINDOW(window));
gtk_widget_show_all(window);