[dia/cairo-port: 50/53] Reimplement selection box
- From: Zander <zbrown src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [dia/cairo-port: 50/53] Reimplement selection box
- Date: Sat, 11 May 2019 15:36:28 +0000 (UTC)
commit 7ef24ee68d0f40125bf8069493a939ea9641511e
Author: Zander Brown <zbrown gnome org>
Date: Mon Jan 7 21:39:26 2019 +0000
Reimplement selection box
app/modify_tool.c | 101 ++++++++++++++++--------------------
lib/diainteractiverenderer.c | 19 ++++++-
lib/diarenderer.h | 22 ++++++--
lib/renderer/diacairo-interactive.c | 51 +++++++++++++++++-
4 files changed, 130 insertions(+), 63 deletions(-)
---
diff --git a/app/modify_tool.c b/app/modify_tool.c
index 6620a8c8..ca558313 100644
--- a/app/modify_tool.c
+++ b/app/modify_tool.c
@@ -296,20 +296,13 @@ modify_button_press(ModifyTool *tool, GdkEventButton *event,
tool->x1 = tool->x2 = (int) event->x;
tool->y1 = tool->y2 = (int) event->y;
- if (tool->gc == NULL) {
- GdkColor white;
-
- color_convert(&color_white, &white);
- tool->gc = gdk_gc_new(gtk_widget_get_window(ddisp->canvas));
- gdk_gc_set_line_attributes(tool->gc, 1, GDK_LINE_ON_OFF_DASH,
- GDK_CAP_BUTT, GDK_JOIN_MITER);
- gdk_gc_set_foreground(tool->gc, &white);
- gdk_gc_set_function(tool->gc, GDK_XOR);
- }
-
- gdk_draw_rectangle (gtk_widget_get_window (ddisp->canvas), tool->gc, FALSE,
- tool->x1, tool->y1,
- tool->x2 - tool->x1, tool->y2 - tool->y1);
+ dia_interactive_renderer_set_selection (ddisp->renderer,
+ TRUE,
+ tool->x1,
+ tool->y1,
+ tool->x2 - tool->x1,
+ tool->y2 - tool->y1);
+ ddisplay_flush (ddisp);
gdk_pointer_grab (gtk_widget_get_window (ddisp->canvas), FALSE,
GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
@@ -434,8 +427,9 @@ modify_move_already(ModifyTool *tool, DDisplay *ddisp, Point *to)
}
static void
-modify_motion(ModifyTool *tool, GdkEventMotion *event,
- DDisplay *ddisp)
+modify_motion (ModifyTool *tool,
+ GdkEventMotion *event,
+ DDisplay *ddisp)
{
Point to;
Point now, delta, full_delta;
@@ -476,9 +470,9 @@ modify_motion(ModifyTool *tool, GdkEventMotion *event,
tool->orig_pos = g_new(Point, g_list_length(list));
i=0;
while (list != NULL) {
- obj = (DiaObject *) list->data;
- tool->orig_pos[i] = obj->position;
- list = g_list_next(list); i++;
+ obj = (DiaObject *) list->data;
+ tool->orig_pos[i] = obj->position;
+ list = g_list_next(list); i++;
}
g_list_free (pla);
}
@@ -556,17 +550,18 @@ modify_motion(ModifyTool *tool, GdkEventMotion *event,
highlight_reset_all(ddisp->diagram);
if ((tool->handle->connect_type != HANDLE_NONCONNECTABLE)) {
/* Move to ConnectionPoint if near: */
- connectionpoint =
- object_find_connectpoint_display(ddisp, &to, tool->object, TRUE);
+ connectionpoint = object_find_connectpoint_display (ddisp,
+ &to,
+ tool->object, TRUE);
if (connectionpoint != NULL) {
DiaHighlightType type;
- to = connectionpoint->pos;
- if (connectionpoint->flags & CP_FLAGS_MAIN) {
+ to = connectionpoint->pos;
+ if (connectionpoint->flags & CP_FLAGS_MAIN) {
type = DIA_HIGHLIGHT_CONNECTIONPOINT_MAIN;
- } else {
+ } else {
type = DIA_HIGHLIGHT_CONNECTIONPOINT;
- }
- highlight_object(connectionpoint->object, type, ddisp->diagram);
+ }
+ highlight_object(connectionpoint->object, type, ddisp->diagram);
ddisplay_set_all_cursor_name (NULL, "crosshair");
}
}
@@ -579,8 +574,9 @@ modify_motion(ModifyTool *tool, GdkEventMotion *event,
if (tool->break_connections) {
/* break connections to the handle currently selected. */
if (tool->handle->connected_to!=NULL) {
- Change *change = undo_unconnect(ddisp->diagram, tool->object,
- tool->handle);
+ Change *change = undo_unconnect (ddisp->diagram,
+ tool->object,
+ tool->handle);
(change->apply)(change, ddisp->diagram);
}
@@ -607,8 +603,8 @@ modify_motion(ModifyTool *tool, GdkEventMotion *event,
guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
if (tool->object) { /* play safe */
- real w = tool->object->bounding_box.right - tool->object->bounding_box.left;
- real h = tool->object->bounding_box.bottom - tool->object->bounding_box.top;
+ real w = tool->object->bounding_box.right - tool->object->bounding_box.left;
+ real h = tool->object->bounding_box.bottom - tool->object->bounding_box.top;
postext = g_strdup_printf("%.3f, %.3f (%.3fx%.3f)", to.x, to.y, w, h);
} else {
postext = g_strdup_printf("%.3f, %.3f", to.x, to.y);
@@ -636,31 +632,27 @@ modify_motion(ModifyTool *tool, GdkEventMotion *event,
diagram_flush(ddisp->diagram);
break;
case STATE_BOX_SELECT:
-
- if (!auto_scroll && !tool->auto_scrolled)
- {
- gdk_draw_rectangle (gtk_widget_get_window (ddisp->canvas), tool->gc, FALSE,
- tool->x1, tool->y1,
- tool->x2 - tool->x1, tool->y2 - tool->y1);
- }
-
tool->end_box = to;
- ddisplay_transform_coords(ddisp,
- MIN(tool->start_box.x, tool->end_box.x),
- MIN(tool->start_box.y, tool->end_box.y),
- &tool->x1, &tool->y1);
- ddisplay_transform_coords(ddisp,
- MAX(tool->start_box.x, tool->end_box.x),
- MAX(tool->start_box.y, tool->end_box.y),
- &tool->x2, &tool->y2);
-
- gdk_draw_rectangle (gtk_widget_get_window (ddisp->canvas), tool->gc, FALSE,
- tool->x1, tool->y1,
- tool->x2 - tool->x1, tool->y2 - tool->y1);
+ ddisplay_transform_coords (ddisp,
+ MIN (tool->start_box.x, tool->end_box.x),
+ MIN (tool->start_box.y, tool->end_box.y),
+ &tool->x1, &tool->y1);
+ ddisplay_transform_coords (ddisp,
+ MAX (tool->start_box.x, tool->end_box.x),
+ MAX (tool->start_box.y, tool->end_box.y),
+ &tool->x2, &tool->y2);
+
+ dia_interactive_renderer_set_selection (ddisp->renderer,
+ TRUE,
+ tool->x1,
+ tool->y1,
+ tool->x2 - tool->x1,
+ tool->y2 - tool->y1);
+ ddisplay_flush (ddisp);
+
break;
case STATE_NONE:
-
break;
default:
message_error("Internal error: Strange state in modify_tool\n");
@@ -792,11 +784,8 @@ modify_button_release(ModifyTool *tool, GdkEventButton *event,
gdk_pointer_ungrab (event->time);
/* Remove last box: */
- if (!tool->auto_scrolled) {
- gdk_draw_rectangle (gtk_widget_get_window (ddisp->canvas), tool->gc, FALSE,
- tool->x1, tool->y1,
- tool->x2 - tool->x1, tool->y2 - tool->y1);
- }
+ dia_interactive_renderer_set_selection (ddisp->renderer,
+ FALSE, 0, 0, 0, 0);
{
GList *list, *list_to_free;
diff --git a/lib/diainteractiverenderer.c b/lib/diainteractiverenderer.c
index 6d0976de..64e4d784 100644
--- a/lib/diainteractiverenderer.c
+++ b/lib/diainteractiverenderer.c
@@ -91,4 +91,21 @@ dia_interactive_renderer_paint (DiaRenderer *renderer,
g_return_if_fail (irenderer->paint != NULL);
irenderer->paint (renderer, ctx, width, height);
-}
\ No newline at end of file
+}
+
+void
+dia_interactive_renderer_set_selection (DiaRenderer *renderer,
+ gboolean has_selection,
+ double x,
+ double y,
+ double width,
+ double height)
+{
+ DiaInteractiveRendererInterface *irenderer =
+ DIA_GET_INTERACTIVE_RENDERER_INTERFACE (renderer);
+
+ g_return_if_fail (irenderer != NULL);
+ g_return_if_fail (irenderer->set_selection != NULL);
+
+ irenderer->set_selection (renderer, has_selection, x, y, width, height);
+}
diff --git a/lib/diarenderer.h b/lib/diarenderer.h
index eb9849d9..41a2b3b4 100644
--- a/lib/diarenderer.h
+++ b/lib/diarenderer.h
@@ -312,15 +312,27 @@ struct _DiaInteractiveRendererInterface
void (*draw_object_highlighted) (DiaRenderer *renderer,
DiaObject *object,
DiaHighlightType type);
+ /* Draw a selection box */
+ void (*set_selection) (DiaRenderer *renderer,
+ gboolean has_selection,
+ double x,
+ double y,
+ double width,
+ double height);
};
GType dia_interactive_renderer_interface_get_type (void) G_GNUC_CONST;
-void dia_interactive_renderer_paint (DiaRenderer *renderer,
- cairo_t *ctx,
- int width,
- int height);
-
+void dia_interactive_renderer_paint (DiaRenderer *renderer,
+ cairo_t *ctx,
+ int width,
+ int height);
+void dia_interactive_renderer_set_selection (DiaRenderer *renderer,
+ gboolean has_selection,
+ double x,
+ double y,
+ double width,
+ double height);
/*!
* \brief Size adjustment to the given window
* \memberof DiaInteractiveRendererInterface
diff --git a/lib/renderer/diacairo-interactive.c b/lib/renderer/diacairo-interactive.c
index c92c62b0..16c6d103 100644
--- a/lib/renderer/diacairo-interactive.c
+++ b/lib/renderer/diacairo-interactive.c
@@ -55,6 +55,13 @@ struct _DiaCairoInteractiveRenderer
guint32 height; /* The height of the pixmap in pixels */
cairo_region_t *clip_region;
+ /* Selection box */
+ gboolean has_selection;
+ double selection_x;
+ double selection_y;
+ double selection_width;
+ double selection_height;
+
/** If non-NULL, this rendering is a highlighting with the given color. */
Color *highlight_color;
};
@@ -264,6 +271,24 @@ draw_object_highlighted (DiaRenderer *self,
/* always reset when done with this object */
interactive->highlight_color = NULL;
}
+
+static void
+set_selection (DiaRenderer *renderer,
+ gboolean has_selection,
+ double x,
+ double y,
+ double width,
+ double height)
+{
+ DiaCairoInteractiveRenderer *self = DIA_CAIRO_INTERACTIVE_RENDERER (renderer);
+
+ self->has_selection = has_selection;
+ self->selection_x = x;
+ self->selection_y = y;
+ self->selection_width = width;
+ self->selection_height = height;
+}
+
static void
dia_cairo_interactive_renderer_iface_init (DiaInteractiveRendererInterface* iface)
{
@@ -275,6 +300,7 @@ dia_cairo_interactive_renderer_iface_init (DiaInteractiveRendererInterface* ifac
iface->paint = paint;
iface->set_size = set_size;
iface->draw_object_highlighted = draw_object_highlighted;
+ iface->set_selection = set_selection;
}
GType
@@ -469,12 +495,35 @@ paint (DiaRenderer *object,
int height)
{
DiaCairoInteractiveRenderer *renderer = DIA_CAIRO_INTERACTIVE_RENDERER (object);
-
+ double dashes[1] = {3};
cairo_save (ctx);
cairo_set_source_surface (ctx, renderer->pixmap, 0.0, 0.0);
cairo_rectangle (ctx, 0, 0, width > 0 ? width : -width, height > 0 ? height : -height);
cairo_clip (ctx);
cairo_paint (ctx);
+
+ /* If there should be a selection rectange */
+ if (renderer->has_selection) {
+ /* Use a dark gray */
+ cairo_set_source_rgba (ctx, 0.1, 0.1, 0.1, 0.8);
+ cairo_set_line_cap (ctx, CAIRO_LINE_CAP_BUTT);
+ cairo_set_line_join (ctx, CAIRO_LINE_JOIN_MITER);
+ cairo_set_line_width (ctx, 1);
+ cairo_set_dash (ctx, dashes, 1, 0);
+
+ /* Set the selected area */
+ cairo_rectangle (ctx,
+ renderer->selection_x,
+ renderer->selection_y,
+ renderer->selection_width,
+ renderer->selection_height);
+ /* Add a dashed gray outline */
+ cairo_stroke_preserve (ctx);
+ /* Very light blue tint fill */
+ cairo_set_source_rgba (ctx, 0, 0, 0.85, 0.05);
+ cairo_fill (ctx);
+ }
+
cairo_restore (ctx);
}
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