mirror of
git://projects.qi-hardware.com/fped.git
synced 2024-11-22 14:31:53 +02:00
Working towards the dragging of frames. Changed the press/drag/release logic of
tables such that items are selected on release and we can thus drag without selecting. (From a user point of view, selecting would be fine. But selecting may sometimes cause a change_world or similar, destroying the widget, which upsets drag and drop.) - gui_frame_drag.c (setup_var_drag, setup_value_drag): moved targets to file scope - gui_frame_drag.c (has_target, drag_var_motion, drag_value_motion): Gtk doesn't check target compatibility for us, so we have to do this explicitly - gui_frame_drag.c (drag_begin): don't leak the pixbuf - gui_frame_drag.c (is_dragging, drag_end), gui_frame_drag.h: for drag vs. activations on button release, we now can test what is being dragged. For this, we have to explicitly clear the variable "dragging" when done. - gui_frame_drag.c (setup_var_drag, setup_value_drag): moved common setup to setup_drag_common - gui_frame_drag.c (setup_frame_drag, drag_frame_motion), gui_frame_drag.h, gui_frame.c (frame_select_event, build_frame_label): added infrastructure for dragging frames - gui_frame_drag.c (setup_canvas_drag, drag_canvas_motion), gui_frame_drag.h, gui_canvas.c (motion_notify_event, make_canvas): added infrastructure for dragging to the canvas - gui_frame.c (table_var_select_event, table_value_select_event, build_table): split logic into press and release action, so that we can drag without implicitly selecting git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5930 99fdad57-331a-0410-800a-d7fa5415bdb3
This commit is contained in:
parent
093a34f860
commit
a4d2926b2d
@ -24,6 +24,7 @@
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#include "gui_status.h"
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#include "gui_status.h"
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#include "gui_tool.h"
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#include "gui_tool.h"
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#include "gui.h"
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#include "gui.h"
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#include "gui_frame_drag.h"
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#include "gui_canvas.h"
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#include "gui_canvas.h"
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@ -182,7 +183,7 @@ static gboolean motion_notify_event(GtkWidget *widget, GdkEventMotion *event,
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if (event->state & GDK_BUTTON2_MASK)
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if (event->state & GDK_BUTTON2_MASK)
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drag_middle(pos);
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drag_middle(pos);
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update_pos(pos);
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update_pos(pos);
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return TRUE;
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return FALSE;
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}
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}
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@ -541,6 +542,8 @@ GtkWidget *make_canvas(void)
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gtk_widget_set_double_buffered(canvas, FALSE);
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gtk_widget_set_double_buffered(canvas, FALSE);
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setup_canvas_drag(canvas);
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draw_ctx.widget = canvas;
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draw_ctx.widget = canvas;
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return canvas;
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return canvas;
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91
gui_frame.c
91
gui_frame.c
@ -886,30 +886,59 @@ static void set_row_values(void *user, const struct value *values,
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}
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}
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static gboolean table_var_select_event(GtkWidget *widget,
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static gboolean table_var_press_event(GtkWidget *widget,
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GdkEventButton *event, gpointer data)
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{
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struct var *var = data;
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switch (event->button) {
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case 3:
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pop_up_table_var(var, event);
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return TRUE;
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}
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return FALSE;
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}
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static gboolean table_var_release_event(GtkWidget *widget,
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GdkEventButton *event, gpointer data)
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GdkEventButton *event, gpointer data)
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{
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{
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struct var *var = data;
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struct var *var = data;
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switch (event->button) {
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switch (event->button) {
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case 1:
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case 1:
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if (is_dragging(var))
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return FALSE;
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edit_var(var, set_col_values, var, -1);
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edit_var(var, set_col_values, var, -1);
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return FALSE;
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return TRUE;
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case 3:
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pop_up_table_var(var, event);
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break;
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}
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}
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return TRUE;
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return FALSE;
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}
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}
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static gboolean table_value_select_event(GtkWidget *widget,
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static gboolean table_value_press_event(GtkWidget *widget,
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GdkEventButton *event, gpointer data)
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{
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struct value *value = data;
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switch (event->button) {
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case 3:
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pop_up_table_value(value, event);
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return TRUE;
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}
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return FALSE;
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}
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static gboolean table_value_release_event(GtkWidget *widget,
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GdkEventButton *event, gpointer data)
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GdkEventButton *event, gpointer data)
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{
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{
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struct value *value = data;
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struct value *value = data;
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switch (event->button) {
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switch (event->button) {
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case 1:
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case 1:
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if (is_dragging(value))
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return FALSE;
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if (!value->row ||
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if (!value->row ||
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value->row->table->active_row == value->row) {
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value->row->table->active_row == value->row) {
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edit_nothing();
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edit_nothing();
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@ -919,12 +948,9 @@ static gboolean table_value_select_event(GtkWidget *widget,
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select_row(value->row);
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select_row(value->row);
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change_world();
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change_world();
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}
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}
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return FALSE;
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return TRUE;
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case 3:
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pop_up_table_value(value, event);
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break;
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}
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}
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return TRUE;
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return FALSE;
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}
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}
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@ -1009,7 +1035,10 @@ static void build_table(GtkWidget *vbox, struct frame *frame,
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label_in_box_bg(field, COLOR_VAR_PASSIVE);
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label_in_box_bg(field, COLOR_VAR_PASSIVE);
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g_signal_connect(G_OBJECT(box_of_label(field)),
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g_signal_connect(G_OBJECT(box_of_label(field)),
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"button_press_event",
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"button_press_event",
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G_CALLBACK(table_var_select_event), var);
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G_CALLBACK(table_var_press_event), var);
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g_signal_connect(G_OBJECT(box_of_label(field)),
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"button_release_event",
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G_CALLBACK(table_var_release_event), var);
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g_signal_connect(G_OBJECT(box_of_label(field)),
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g_signal_connect(G_OBJECT(box_of_label(field)),
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"scroll_event",
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"scroll_event",
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G_CALLBACK(table_scroll_event), table);
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G_CALLBACK(table_scroll_event), table);
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@ -1034,7 +1063,10 @@ static void build_table(GtkWidget *vbox, struct frame *frame,
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COLOR_ROW_SELECTED : COLOR_ROW_UNSELECTED);
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COLOR_ROW_SELECTED : COLOR_ROW_UNSELECTED);
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g_signal_connect(G_OBJECT(box_of_label(field)),
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g_signal_connect(G_OBJECT(box_of_label(field)),
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"button_press_event",
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"button_press_event",
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G_CALLBACK(table_value_select_event), value);
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G_CALLBACK(table_value_press_event), value);
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g_signal_connect(G_OBJECT(box_of_label(field)),
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"button_release_event",
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G_CALLBACK(table_value_release_event), value);
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g_signal_connect(G_OBJECT(box_of_label(field)),
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g_signal_connect(G_OBJECT(box_of_label(field)),
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"scroll_event",
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"scroll_event",
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G_CALLBACK(table_scroll_event), table);
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G_CALLBACK(table_scroll_event), table);
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@ -1653,13 +1685,29 @@ void select_frame(struct frame *frame)
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}
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}
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static gboolean frame_select_event(GtkWidget *widget, GdkEventButton *event,
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static gboolean frame_press_event(GtkWidget *widget, GdkEventButton *event,
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gpointer data)
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{
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struct frame *frame = data;
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switch (event->button) {
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case 3:
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pop_up_frame(frame, event);
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return TRUE;
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}
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return FALSE;
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}
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static gboolean frame_release_event(GtkWidget *widget, GdkEventButton *event,
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gpointer data)
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gpointer data)
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{
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{
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struct frame *frame = data;
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struct frame *frame = data;
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switch (event->button) {
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switch (event->button) {
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case 1:
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case 1:
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if (is_dragging(frame))
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return FALSE;
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if (active_frame != frame)
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if (active_frame != frame)
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select_frame(frame);
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select_frame(frame);
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else {
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else {
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@ -1668,12 +1716,9 @@ static gboolean frame_select_event(GtkWidget *widget, GdkEventButton *event,
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edit_frame(frame);
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edit_frame(frame);
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}
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}
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}
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}
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break;
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return TRUE;
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case 3:
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pop_up_frame(frame, event);
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break;
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}
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}
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return TRUE;
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return FALSE;
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}
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}
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@ -1691,9 +1736,13 @@ static GtkWidget *build_frame_label(struct frame *frame)
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COLOR_FRAME_SELECTED : COLOR_FRAME_UNSELECTED);
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COLOR_FRAME_SELECTED : COLOR_FRAME_UNSELECTED);
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g_signal_connect(G_OBJECT(box_of_label(label)),
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g_signal_connect(G_OBJECT(box_of_label(label)),
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"button_press_event", G_CALLBACK(frame_select_event), frame);
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"button_press_event", G_CALLBACK(frame_press_event), frame);
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g_signal_connect(G_OBJECT(box_of_label(label)),
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"button_release_event", G_CALLBACK(frame_release_event), frame);
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frame->label = label;
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frame->label = label;
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setup_frame_drag(frame);
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return box_of_label(label);
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return box_of_label(label);
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}
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}
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158
gui_frame_drag.c
158
gui_frame_drag.c
@ -18,12 +18,49 @@
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#include "gui_frame_drag.h"
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#include "gui_frame_drag.h"
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enum {
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target_id_var,
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target_id_value,
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target_id_frame,
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target_id_canvas,
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};
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static GtkTargetEntry target_var = {
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.target = "var",
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.flags = GTK_TARGET_SAME_APP,
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.info = target_id_var,
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};
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static GtkTargetEntry target_value = {
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.target = "value",
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.flags = GTK_TARGET_SAME_APP,
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.info = target_id_value,
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};
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static GtkTargetEntry target_frame = {
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.target = "frame",
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.flags = GTK_TARGET_SAME_APP,
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.info = target_id_frame,
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};
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/* ----- dragging status --------------------------------------------------- */
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/*
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/*
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* Pointer to whatever it is we're dragging. Undefined if not dragging.
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* Pointer to whatever it is we're dragging. NULL if not dragging.
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*/
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*/
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static void *dragging;
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static void *dragging;
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int is_dragging(void *this)
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{
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return this == dragging;
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}
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/* ----- helper functions for indexed list and swapping -------------------- */
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/* ----- helper functions for indexed list and swapping -------------------- */
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@ -148,7 +185,27 @@ static void swap_rows(struct row **a, struct row **b)
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}
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}
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/* ----- common callback --------------------------------------------------- */
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/* ----- common functions -------------------------------------------------- */
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/*
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* according to
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* http://www.pubbs.net/201004/gtk/22819-re-drag-and-drop-drag-motion-cursor-lockup-fixed-.html
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* http://www.cryingwolf.org/articles/gtk-dnd.html
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*/
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static int has_target(GtkWidget *widget, GdkDragContext *drag_context,
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const char *name)
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{
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GdkAtom target;
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target = gtk_drag_dest_find_target(widget, drag_context, NULL);
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/*
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* Force allocation so that we don't have to check for GDK_NONE.
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*/
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return target == gdk_atom_intern(name, FALSE);
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}
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static void drag_begin(GtkWidget *widget,
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static void drag_begin(GtkWidget *widget,
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@ -163,11 +220,28 @@ static void drag_begin(GtkWidget *widget,
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pixbuf =
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pixbuf =
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gdk_pixbuf_get_from_drawable(NULL, DA, NULL, 0, 0, 0, 0, 1, 1);
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gdk_pixbuf_get_from_drawable(NULL, DA, NULL, 0, 0, 0, 0, 1, 1);
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gtk_drag_source_set_icon_pixbuf(widget, pixbuf);
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gtk_drag_source_set_icon_pixbuf(widget, pixbuf);
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g_object_unref(pixbuf);
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dragging = user_data;
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dragging = user_data;
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}
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}
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static void drag_end(GtkWidget *widget, GdkDragContext *drag_context,
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gpointer user_data)
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{
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dragging = NULL;
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}
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static void setup_drag_common(GtkWidget *widget, void *user_arg)
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{
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g_signal_connect(G_OBJECT(widget), "drag-begin",
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G_CALLBACK(drag_begin), user_arg);
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g_signal_connect(G_OBJECT(widget), "drag-end",
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G_CALLBACK(drag_end), user_arg);
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}
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/* ----- drag variables ---------------------------------------------------- */
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/* ----- drag variables ---------------------------------------------------- */
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@ -179,6 +253,8 @@ static gboolean drag_var_motion(GtkWidget *widget,
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struct var *to = user_data;
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struct var *to = user_data;
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int from_n, to_n, i;
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int from_n, to_n, i;
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if (!has_target(widget, drag_context, "var"))
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return FALSE;
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if (from == to || from->table != to->table)
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if (from == to || from->table != to->table)
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return FALSE;
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return FALSE;
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from_n = NDX(from->table->vars, from);
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from_n = NDX(from->table->vars, from);
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@ -192,19 +268,14 @@ static gboolean drag_var_motion(GtkWidget *widget,
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void setup_var_drag(struct var *var)
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void setup_var_drag(struct var *var)
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{
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{
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static GtkTargetEntry target = {
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.target = "var",
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.flags = GTK_TARGET_SAME_APP,
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};
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GtkWidget *box;
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GtkWidget *box;
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box = box_of_label(var->widget);
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box = box_of_label(var->widget);
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gtk_drag_source_set(box, GDK_BUTTON1_MASK,
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gtk_drag_source_set(box, GDK_BUTTON1_MASK,
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&target, 1, GDK_ACTION_PRIVATE);
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&target_var, 1, GDK_ACTION_PRIVATE);
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gtk_drag_dest_set(box, GTK_DEST_DEFAULT_HIGHLIGHT,
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gtk_drag_dest_set(box, GTK_DEST_DEFAULT_HIGHLIGHT,
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&target, 1, GDK_ACTION_PRIVATE);
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&target_var, 1, GDK_ACTION_PRIVATE);
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g_signal_connect(G_OBJECT(box), "drag-begin",
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setup_drag_common(box, var);
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G_CALLBACK(drag_begin), var);
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g_signal_connect(G_OBJECT(box), "drag-motion",
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g_signal_connect(G_OBJECT(box), "drag-motion",
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G_CALLBACK(drag_var_motion), var);
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G_CALLBACK(drag_var_motion), var);
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}
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}
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@ -219,10 +290,13 @@ static gboolean drag_value_motion(GtkWidget *widget,
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{
|
{
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struct value *from = dragging;
|
struct value *from = dragging;
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struct value *to = user_data;
|
struct value *to = user_data;
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struct table *table = from->row->table;
|
struct table *table;
|
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struct row **row, *end;
|
struct row **row, *end;
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||||||
int from_n, to_n, i;
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int from_n, to_n, i;
|
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|
|
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|
if (!has_target(widget, drag_context, "value"))
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return FALSE;
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|
table = from->row->table;
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if (table != to->row->table)
|
if (table != to->row->table)
|
||||||
return FALSE;
|
return FALSE;
|
||||||
|
|
||||||
@ -263,19 +337,65 @@ static gboolean drag_value_motion(GtkWidget *widget,
|
|||||||
|
|
||||||
void setup_value_drag(struct value *value)
|
void setup_value_drag(struct value *value)
|
||||||
{
|
{
|
||||||
static GtkTargetEntry target = {
|
|
||||||
.target = "value",
|
|
||||||
.flags = GTK_TARGET_SAME_APP,
|
|
||||||
};
|
|
||||||
GtkWidget *box;
|
GtkWidget *box;
|
||||||
|
|
||||||
box = box_of_label(value->widget);
|
box = box_of_label(value->widget);
|
||||||
gtk_drag_source_set(box, GDK_BUTTON1_MASK,
|
gtk_drag_source_set(box, GDK_BUTTON1_MASK,
|
||||||
&target, 1, GDK_ACTION_PRIVATE);
|
&target_value, 1, GDK_ACTION_PRIVATE);
|
||||||
gtk_drag_dest_set(box, GTK_DEST_DEFAULT_HIGHLIGHT,
|
gtk_drag_dest_set(box, GTK_DEST_DEFAULT_HIGHLIGHT,
|
||||||
&target, 1, GDK_ACTION_PRIVATE);
|
&target_value, 1, GDK_ACTION_PRIVATE);
|
||||||
g_signal_connect(G_OBJECT(box), "drag-begin",
|
setup_drag_common(box, value);
|
||||||
G_CALLBACK(drag_begin), value);
|
|
||||||
g_signal_connect(G_OBJECT(box), "drag-motion",
|
g_signal_connect(G_OBJECT(box), "drag-motion",
|
||||||
G_CALLBACK(drag_value_motion), value);
|
G_CALLBACK(drag_value_motion), value);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* ----- drag frame labels ------------------------------------------------- */
|
||||||
|
|
||||||
|
|
||||||
|
static gboolean drag_frame_motion(GtkWidget *widget,
|
||||||
|
GdkDragContext *drag_context, gint x, gint y, guint time_,
|
||||||
|
gpointer user_data)
|
||||||
|
{
|
||||||
|
if (!has_target(widget, drag_context, "frame"))
|
||||||
|
return FALSE;
|
||||||
|
//fprintf(stderr, "frame\n");
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void setup_frame_drag(struct frame *frame)
|
||||||
|
{
|
||||||
|
GtkWidget *box;
|
||||||
|
|
||||||
|
box = box_of_label(frame->label);
|
||||||
|
gtk_drag_source_set(box, GDK_BUTTON1_MASK,
|
||||||
|
&target_frame, 1, GDK_ACTION_PRIVATE);
|
||||||
|
setup_drag_common(box, frame);
|
||||||
|
g_signal_connect(G_OBJECT(box), "drag-motion",
|
||||||
|
G_CALLBACK(drag_frame_motion), frame);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* ----- drag to the canvas ------------------------------------------------ */
|
||||||
|
|
||||||
|
|
||||||
|
static gboolean drag_canvas_motion(GtkWidget *widget,
|
||||||
|
GdkDragContext *drag_context, gint x, gint y, guint time_,
|
||||||
|
gpointer user_data)
|
||||||
|
{
|
||||||
|
if (!has_target(widget, drag_context, "frame"))
|
||||||
|
return FALSE;
|
||||||
|
//fprintf(stderr, "canvas\n");
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void setup_canvas_drag(GtkWidget *canvas)
|
||||||
|
{
|
||||||
|
gtk_drag_dest_set(canvas, GTK_DEST_DEFAULT_HIGHLIGHT,
|
||||||
|
&target_frame, 1, GDK_ACTION_PRIVATE);
|
||||||
|
setup_drag_common(canvas, NULL);
|
||||||
|
g_signal_connect(G_OBJECT(canvas), "drag-motion",
|
||||||
|
G_CALLBACK(drag_canvas_motion), NULL);
|
||||||
|
}
|
||||||
|
@ -19,7 +19,11 @@
|
|||||||
#include "obj.h"
|
#include "obj.h"
|
||||||
|
|
||||||
|
|
||||||
|
int is_dragging(void *this);
|
||||||
|
|
||||||
void setup_var_drag(struct var *var);
|
void setup_var_drag(struct var *var);
|
||||||
void setup_value_drag(struct value *value);
|
void setup_value_drag(struct value *value);
|
||||||
|
void setup_frame_drag(struct frame *frame);
|
||||||
|
void setup_canvas_drag(GtkWidget *canvas);
|
||||||
|
|
||||||
#endif /* !GUI_FRAME_DRAG_H */
|
#endif /* !GUI_FRAME_DRAG_H */
|
||||||
|
Loading…
Reference in New Issue
Block a user