[PATCH 05/12] editor: Make text_entry a widget
Jan Arne Petersen
jpetersen at openismus.com
Thu Aug 30 10:16:10 PDT 2012
From: Jan Arne Petersen <jpetersen at openismus.com>
Simplify the example client by making text_entry a widget.
---
clients/editor.c | 179 +++++++++++++++++++++++++++++--------------------------
1 file changed, 94 insertions(+), 85 deletions(-)
diff --git a/clients/editor.c b/clients/editor.c
index ea78429..540642b 100644
--- a/clients/editor.c
+++ b/clients/editor.c
@@ -50,6 +50,12 @@ struct editor {
struct text_entry *editor;
};
+static void text_entry_redraw_handler(struct widget *widget, void *data);
+static void text_entry_button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button,
+ enum wl_pointer_button_state state, void *data);
+
static void
text_entry_append(struct text_entry *entry, const char *text)
{
@@ -150,56 +156,29 @@ text_entry_create(struct editor *editor, const char *text)
entry = malloc(sizeof *entry);
- entry->widget = editor->widget;
+ entry->widget = widget_add_widget(editor->widget, entry);
entry->window = editor->window;
entry->text = strdup(text);
entry->active = 0;
entry->model = text_model_factory_create_text_model(editor->text_model_factory);
text_model_add_listener(entry->model, &text_model_listener, entry);
+ widget_set_redraw_handler(entry->widget, text_entry_redraw_handler);
+ widget_set_button_handler(entry->widget, text_entry_button_handler);
+
return entry;
}
static void
text_entry_destroy(struct text_entry *entry)
{
+ widget_destroy(entry->widget);
text_model_destroy(entry->model);
free(entry->text);
free(entry);
}
static void
-text_entry_draw(struct text_entry *entry, cairo_t *cr)
-{
- cairo_save(cr);
- cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
-
- cairo_rectangle(cr, entry->allocation.x, entry->allocation.y, entry->allocation.width, entry->allocation.height);
- cairo_clip(cr);
-
- cairo_translate(cr, entry->allocation.x, entry->allocation.y);
- cairo_rectangle(cr, 0, 0, entry->allocation.width, entry->allocation.height);
- cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
- cairo_fill(cr);
- if (entry->active) {
- cairo_rectangle(cr, 0, 0, entry->allocation.width, entry->allocation.height);
- cairo_set_source_rgba(cr, 0, 0, 1, 0.5);
- cairo_stroke(cr);
- }
-
- cairo_set_source_rgb(cr, 0, 0, 0);
- cairo_select_font_face(cr, "sans",
- CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_BOLD);
- cairo_set_font_size(cr, 14);
-
- cairo_translate(cr, 10, entry->allocation.height / 2);
- cairo_show_text(cr, entry->text);
-
- cairo_restore(cr);
-}
-
-static void
redraw_handler(struct widget *widget, void *data)
{
struct editor *editor = data;
@@ -218,17 +197,11 @@ redraw_handler(struct widget *widget, void *data)
/* Draw background */
cairo_push_group(cr);
- cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 1, 1, 1, 1);
cairo_rectangle(cr, 0, 0, allocation.width, allocation.height);
cairo_fill(cr);
- /* Entry */
- text_entry_draw(editor->entry, cr);
-
- /* Editor */
- text_entry_draw(editor->editor, cr);
-
cairo_pop_group_to_source(cr);
cairo_paint(cr);
@@ -240,10 +213,7 @@ static void
text_entry_allocate(struct text_entry *entry, int32_t x, int32_t y,
int32_t width, int32_t height)
{
- entry->allocation.x = x;
- entry->allocation.y = y;
- entry->allocation.width = width;
- entry->allocation.height = height;
+ widget_set_allocation(entry->widget, x, y, width, height);
}
static void
@@ -251,28 +221,21 @@ resize_handler(struct widget *widget,
int32_t width, int32_t height, void *data)
{
struct editor *editor = data;
+ struct rectangle allocation;
- text_entry_allocate(editor->entry, 20, 20, width - 40, height / 2 - 40);
- text_entry_allocate(editor->editor, 20, height / 2 + 20, width - 40, height / 2 - 40);
-}
-
-static int32_t
-rectangle_contains(struct rectangle *rectangle, int32_t x, int32_t y)
-{
- if (x < rectangle->x || x > rectangle->x + rectangle->width) {
- return 0;
- }
-
- if (y < rectangle->y || y > rectangle->y + rectangle->height) {
- return 0;
- }
+ widget_get_allocation(editor->widget, &allocation);
- return 1;
+ text_entry_allocate(editor->entry,
+ allocation.x + 20, allocation.y + 20,
+ width - 40, height / 2 - 40);
+ text_entry_allocate(editor->editor,
+ allocation.x + 20, allocation.y + height / 2 + 20,
+ width - 40, height / 2 - 40);
}
static void
text_entry_activate(struct text_entry *entry,
- struct wl_seat *seat)
+ struct wl_seat *seat)
{
struct wl_surface *surface = window_get_wl_surface(entry->window);
@@ -290,42 +253,90 @@ text_entry_deactivate(struct text_entry *entry,
}
static void
-button_handler(struct widget *widget,
- struct input *input, uint32_t time,
- uint32_t button,
- enum wl_pointer_button_state state, void *data)
+text_entry_redraw_handler(struct widget *widget, void *data)
{
- struct editor *editor = data;
+ struct text_entry *entry = data;
+ cairo_surface_t *surface;
struct rectangle allocation;
- int32_t x, y;
- struct wl_seat *seat;
+ cairo_t *cr;
+
+ surface = window_get_surface(entry->window);
+ widget_get_allocation(entry->widget, &allocation);
+
+ cr = cairo_create(surface);
+ cairo_rectangle(cr, allocation.x, allocation.y, allocation.width, allocation.height);
+ cairo_clip(cr);
- if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
+ cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
+
+ cairo_push_group(cr);
+ cairo_translate(cr, allocation.x, allocation.y);
+
+ cairo_set_source_rgba(cr, 1, 1, 1, 1);
+ cairo_rectangle(cr, 0, 0, allocation.width, allocation.height);
+ cairo_fill(cr);
+
+ cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
+
+ if (entry->active) {
+ cairo_rectangle(cr, 0, 0, allocation.width, allocation.height);
+ cairo_set_line_width (cr, 3);
+ cairo_set_source_rgba(cr, 0, 0, 1, 1.0);
+ cairo_stroke(cr);
+ }
+
+ cairo_set_source_rgba(cr, 0, 0, 0, 1);
+ cairo_select_font_face(cr, "sans",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_BOLD);
+ cairo_set_font_size(cr, 14);
+
+ cairo_translate(cr, 10, allocation.height / 2);
+ cairo_show_text(cr, entry->text);
+ cairo_pop_group_to_source(cr);
+ cairo_paint(cr);
+
+ cairo_destroy(cr);
+ cairo_surface_destroy(surface);
+}
+
+static void
+text_entry_button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button,
+ enum wl_pointer_button_state state, void *data)
+{
+ struct text_entry *entry = data;
+
+ if (button != BTN_LEFT) {
return;
}
- input_get_position(input, &x, &y);
+ if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
+ struct wl_seat *seat = input_get_seat(input);
- widget_get_allocation(editor->widget, &allocation);
- x -= allocation.x;
- y -= allocation.y;
+ text_entry_activate(entry, seat);
+ }
+}
+
+static void
+editor_button_handler(struct widget *widget,
+ struct input *input, uint32_t time,
+ uint32_t button,
+ enum wl_pointer_button_state state, void *data)
+{
+ struct editor *editor = data;
- int32_t activate_entry = rectangle_contains(&editor->entry->allocation, x, y);
- int32_t activate_editor = rectangle_contains(&editor->editor->allocation, x, y);
- assert(!(activate_entry && activate_editor));
+ if (button != BTN_LEFT) {
+ return;
+ }
- seat = input_get_seat(input);
+ if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
+ struct wl_seat *seat = input_get_seat(input);
- if (activate_entry) {
- text_entry_activate(editor->entry, seat);
- } else if (activate_editor) {
- text_entry_activate(editor->editor, seat);
- } else {
text_entry_deactivate(editor->entry, seat);
text_entry_deactivate(editor->editor, seat);
}
-
- widget_schedule_redraw(widget);
}
static void
@@ -337,8 +348,6 @@ global_handler(struct wl_display *display, uint32_t id,
if (!strcmp(interface, "text_model_factory")) {
editor->text_model_factory = wl_display_bind(display, id,
&text_model_factory_interface);
- } else if (!strcmp(interface, "wl_seat")) {
- fprintf(stderr, "wl_seat added\n");
}
}
@@ -366,7 +375,7 @@ main(int argc, char *argv[])
widget_set_redraw_handler(editor.widget, redraw_handler);
widget_set_resize_handler(editor.widget, resize_handler);
- widget_set_button_handler(editor.widget, button_handler);
+ widget_set_button_handler(editor.widget, editor_button_handler);
window_schedule_resize(editor.window, 500, 400);
--
1.7.11.4
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