#include <gtk/gtk.h>
#include <libgnomecanvas/libgnomecanvas.h>
-#include <libart_lgpl/art_vpath_dash.h>
-
#include "xournal.h"
#include "xo-callbacks.h"
#include "xo-interface.h"
is traversed in the forward direction */
}
-/************ selection tools ***********/
-
-void make_dashed(GnomeCanvasItem *item)
-{
- double dashlen[2];
- ArtVpathDash dash;
-
- dash.n_dash = 2;
- dash.offset = 3.0;
- dash.dash = dashlen;
- dashlen[0] = dashlen[1] = 6.0;
- gnome_canvas_item_set(item, "dash", &dash, NULL);
-}
-
-
-void start_selectrect(GdkEvent *event)
-{
- double pt[2];
- reset_selection();
-
- ui.cur_item_type = ITEM_SELECTRECT;
- ui.selection = g_new(struct Selection, 1);
- ui.selection->type = ITEM_SELECTRECT;
- ui.selection->items = NULL;
- ui.selection->layer = ui.cur_layer;
-
- get_pointer_coords(event, pt);
- ui.selection->bbox.left = ui.selection->bbox.right = pt[0];
- ui.selection->bbox.top = ui.selection->bbox.bottom = pt[1];
-
- ui.selection->canvas_item = gnome_canvas_item_new(ui.cur_layer->group,
- gnome_canvas_rect_get_type(), "width-pixels", 1,
- "outline-color-rgba", 0x000000ff,
- "fill-color-rgba", 0x80808040,
- "x1", pt[0], "x2", pt[0], "y1", pt[1], "y2", pt[1], NULL);
- update_cursor();
-}
-
-void finalize_selectrect(void)
-{
- double x1, x2, y1, y2;
- GList *itemlist;
- struct Item *item;
-
-
- ui.cur_item_type = ITEM_NONE;
-
- if (ui.selection->bbox.left > ui.selection->bbox.right) {
- x1 = ui.selection->bbox.right; x2 = ui.selection->bbox.left;
- ui.selection->bbox.left = x1; ui.selection->bbox.right = x2;
- } else {
- x1 = ui.selection->bbox.left; x2 = ui.selection->bbox.right;
- }
-
- if (ui.selection->bbox.top > ui.selection->bbox.bottom) {
- y1 = ui.selection->bbox.bottom; y2 = ui.selection->bbox.top;
- ui.selection->bbox.top = y1; ui.selection->bbox.bottom = y2;
- } else {
- y1 = ui.selection->bbox.top; y2 = ui.selection->bbox.bottom;
- }
-
- for (itemlist = ui.selection->layer->items; itemlist!=NULL; itemlist = itemlist->next) {
- item = (struct Item *)itemlist->data;
- if (item->bbox.left >= x1 && item->bbox.right <= x2 &&
- item->bbox.top >= y1 && item->bbox.bottom <= y2) {
- ui.selection->items = g_list_append(ui.selection->items, item);
- }
- }
-
- if (ui.selection->items == NULL) {
- // if we clicked inside a text zone or image?
- item = click_is_in_text_or_image(ui.selection->layer, x1, y1);
- if (item!=NULL && item==click_is_in_text_or_image(ui.selection->layer, x2, y2)) {
- ui.selection->items = g_list_append(ui.selection->items, item);
- g_memmove(&(ui.selection->bbox), &(item->bbox), sizeof(struct BBox));
- gnome_canvas_item_set(ui.selection->canvas_item,
- "x1", item->bbox.left, "x2", item->bbox.right,
- "y1", item->bbox.top, "y2", item->bbox.bottom, NULL);
- }
- }
-
- if (ui.selection->items == NULL) reset_selection();
- else make_dashed(ui.selection->canvas_item);
- update_cursor();
- update_copy_paste_enabled();
- update_font_button();
-}
-
-gboolean start_movesel(GdkEvent *event)
-{
- double pt[2];
-
- if (ui.selection==NULL) return FALSE;
- if (ui.cur_layer != ui.selection->layer) return FALSE;
-
- get_pointer_coords(event, pt);
- if (ui.selection->type == ITEM_SELECTRECT) {
- if (pt[0]<ui.selection->bbox.left || pt[0]>ui.selection->bbox.right ||
- pt[1]<ui.selection->bbox.top || pt[1]>ui.selection->bbox.bottom)
- return FALSE;
- ui.cur_item_type = ITEM_MOVESEL;
- ui.selection->anchor_x = ui.selection->last_x = pt[0];
- ui.selection->anchor_y = ui.selection->last_y = pt[1];
- ui.selection->orig_pageno = ui.pageno;
- ui.selection->move_pageno = ui.pageno;
- ui.selection->move_layer = ui.selection->layer;
- ui.selection->move_pagedelta = 0.;
- gnome_canvas_item_set(ui.selection->canvas_item, "dash", NULL, NULL);
- update_cursor();
- return TRUE;
- }
- return FALSE;
-}
-
-gboolean start_resizesel(GdkEvent *event)
-{
- double pt[2], resize_margin, hmargin, vmargin;
-
- if (ui.selection==NULL) return FALSE;
- if (ui.cur_layer != ui.selection->layer) return FALSE;
-
- get_pointer_coords(event, pt);
-
- if (ui.selection->type == ITEM_SELECTRECT) {
- resize_margin = RESIZE_MARGIN/ui.zoom;
- hmargin = (ui.selection->bbox.right-ui.selection->bbox.left)*0.3;
- if (hmargin>resize_margin) hmargin = resize_margin;
- vmargin = (ui.selection->bbox.bottom-ui.selection->bbox.top)*0.3;
- if (vmargin>resize_margin) vmargin = resize_margin;
-
- // make sure the click is within a box slightly bigger than the selection rectangle
- if (pt[0]<ui.selection->bbox.left-resize_margin ||
- pt[0]>ui.selection->bbox.right+resize_margin ||
- pt[1]<ui.selection->bbox.top-resize_margin ||
- pt[1]>ui.selection->bbox.bottom+resize_margin)
- return FALSE;
-
- // now, if the click is near the edge, it's a resize operation
- // keep track of which edges we're close to, since those are the ones which should move
- ui.selection->resizing_left = (pt[0]<ui.selection->bbox.left+hmargin);
- ui.selection->resizing_right = (pt[0]>ui.selection->bbox.right-hmargin);
- ui.selection->resizing_top = (pt[1]<ui.selection->bbox.top+vmargin);
- ui.selection->resizing_bottom = (pt[1]>ui.selection->bbox.bottom-vmargin);
-
- // we're not near any edge, give up
- if (!(ui.selection->resizing_left || ui.selection->resizing_right ||
- ui.selection->resizing_top || ui.selection->resizing_bottom))
- return FALSE;
-
- ui.cur_item_type = ITEM_RESIZESEL;
- ui.selection->new_y1 = ui.selection->bbox.top;
- ui.selection->new_y2 = ui.selection->bbox.bottom;
- ui.selection->new_x1 = ui.selection->bbox.left;
- ui.selection->new_x2 = ui.selection->bbox.right;
- gnome_canvas_item_set(ui.selection->canvas_item, "dash", NULL, NULL);
- update_cursor_for_resize(pt);
- return TRUE;
- }
- return FALSE;
-}
-
-
-void start_vertspace(GdkEvent *event)
-{
- double pt[2];
- GList *itemlist;
- struct Item *item;
-
- reset_selection();
- ui.cur_item_type = ITEM_MOVESEL_VERT;
- ui.selection = g_new(struct Selection, 1);
- ui.selection->type = ITEM_MOVESEL_VERT;
- ui.selection->items = NULL;
- ui.selection->layer = ui.cur_layer;
-
- get_pointer_coords(event, pt);
- ui.selection->bbox.top = ui.selection->bbox.bottom = pt[1];
- for (itemlist = ui.cur_layer->items; itemlist!=NULL; itemlist = itemlist->next) {
- item = (struct Item *)itemlist->data;
- if (item->bbox.top >= pt[1]) {
- ui.selection->items = g_list_append(ui.selection->items, item);
- if (item->bbox.bottom > ui.selection->bbox.bottom)
- ui.selection->bbox.bottom = item->bbox.bottom;
- }
- }
-
- ui.selection->anchor_x = ui.selection->last_x = 0;
- ui.selection->anchor_y = ui.selection->last_y = pt[1];
- ui.selection->orig_pageno = ui.pageno;
- ui.selection->move_pageno = ui.pageno;
- ui.selection->move_layer = ui.selection->layer;
- ui.selection->move_pagedelta = 0.;
- ui.selection->canvas_item = gnome_canvas_item_new(ui.cur_layer->group,
- gnome_canvas_rect_get_type(), "width-pixels", 1,
- "outline-color-rgba", 0x000000ff,
- "fill-color-rgba", 0x80808040,
- "x1", -100.0, "x2", ui.cur_page->width+100, "y1", pt[1], "y2", pt[1], NULL);
- update_cursor();
-}
-
-void continue_movesel(GdkEvent *event)
-{
- double pt[2], dx, dy, upmargin;
- GList *list;
- struct Item *item;
- int tmppageno;
- struct Page *tmppage;
-
- get_pointer_coords(event, pt);
- if (ui.cur_item_type == ITEM_MOVESEL_VERT) pt[0] = 0;
- pt[1] += ui.selection->move_pagedelta;
-
- // check for page jumps
- if (ui.cur_item_type == ITEM_MOVESEL_VERT)
- upmargin = ui.selection->bbox.bottom - ui.selection->bbox.top;
- else upmargin = VIEW_CONTINUOUS_SKIP;
- tmppageno = ui.selection->move_pageno;
- tmppage = g_list_nth_data(journal.pages, tmppageno);
- while (ui.view_continuous && (pt[1] < - upmargin)) {
- if (tmppageno == 0) break;
- tmppageno--;
- tmppage = g_list_nth_data(journal.pages, tmppageno);
- pt[1] += tmppage->height + VIEW_CONTINUOUS_SKIP;
- ui.selection->move_pagedelta += tmppage->height + VIEW_CONTINUOUS_SKIP;
- }
- while (ui.view_continuous && (pt[1] > tmppage->height+VIEW_CONTINUOUS_SKIP)) {
- if (tmppageno == journal.npages-1) break;
- pt[1] -= tmppage->height + VIEW_CONTINUOUS_SKIP;
- ui.selection->move_pagedelta -= tmppage->height + VIEW_CONTINUOUS_SKIP;
- tmppageno++;
- tmppage = g_list_nth_data(journal.pages, tmppageno);
- }
-
- if (tmppageno != ui.selection->move_pageno) {
- // move to a new page !
- ui.selection->move_pageno = tmppageno;
- if (tmppageno == ui.selection->orig_pageno)
- ui.selection->move_layer = ui.selection->layer;
- else
- ui.selection->move_layer = (struct Layer *)(g_list_last(
- ((struct Page *)g_list_nth_data(journal.pages, tmppageno))->layers)->data);
- gnome_canvas_item_reparent(ui.selection->canvas_item, ui.selection->move_layer->group);
- for (list = ui.selection->items; list!=NULL; list = list->next) {
- item = (struct Item *)list->data;
- if (item->canvas_item!=NULL)
- gnome_canvas_item_reparent(item->canvas_item, ui.selection->move_layer->group);
- }
- // avoid a refresh bug
- gnome_canvas_item_move(GNOME_CANVAS_ITEM(ui.selection->move_layer->group), 0., 0.);
- if (ui.cur_item_type == ITEM_MOVESEL_VERT)
- gnome_canvas_item_set(ui.selection->canvas_item,
- "x2", tmppage->width+100,
- "y1", ui.selection->anchor_y+ui.selection->move_pagedelta, NULL);
- }
-
- // now, process things normally
-
- dx = pt[0] - ui.selection->last_x;
- dy = pt[1] - ui.selection->last_y;
- if (hypot(dx,dy) < 1) return; // don't move subpixel
- ui.selection->last_x = pt[0];
- ui.selection->last_y = pt[1];
-
- // move the canvas items
- if (ui.cur_item_type == ITEM_MOVESEL_VERT)
- gnome_canvas_item_set(ui.selection->canvas_item, "y2", pt[1], NULL);
- else
- gnome_canvas_item_move(ui.selection->canvas_item, dx, dy);
-
- for (list = ui.selection->items; list != NULL; list = list->next) {
- item = (struct Item *)list->data;
- if (item->canvas_item != NULL)
- gnome_canvas_item_move(item->canvas_item, dx, dy);
- }
-}
-
-void continue_resizesel(GdkEvent *event)
-{
- double pt[2];
-
- get_pointer_coords(event, pt);
-
- if (ui.selection->resizing_top) ui.selection->new_y1 = pt[1];
- if (ui.selection->resizing_bottom) ui.selection->new_y2 = pt[1];
- if (ui.selection->resizing_left) ui.selection->new_x1 = pt[0];
- if (ui.selection->resizing_right) ui.selection->new_x2 = pt[0];
-
- gnome_canvas_item_set(ui.selection->canvas_item,
- "x1", ui.selection->new_x1, "x2", ui.selection->new_x2,
- "y1", ui.selection->new_y1, "y2", ui.selection->new_y2, NULL);
-}
-
-void finalize_movesel(void)
-{
- GList *list, *link;
-
- if (ui.selection->items != NULL) {
- prepare_new_undo();
- undo->type = ITEM_MOVESEL;
- undo->itemlist = g_list_copy(ui.selection->items);
- undo->val_x = ui.selection->last_x - ui.selection->anchor_x;
- undo->val_y = ui.selection->last_y - ui.selection->anchor_y;
- undo->layer = ui.selection->layer;
- undo->layer2 = ui.selection->move_layer;
- undo->auxlist = NULL;
- // build auxlist = pointers to Item's just before ours (for depths)
- for (list = ui.selection->items; list!=NULL; list = list->next) {
- link = g_list_find(ui.selection->layer->items, list->data);
- if (link!=NULL) link = link->prev;
- undo->auxlist = g_list_append(undo->auxlist, ((link!=NULL) ? link->data : NULL));
- }
- ui.selection->layer = ui.selection->move_layer;
- move_journal_items_by(undo->itemlist, undo->val_x, undo->val_y,
- undo->layer, undo->layer2,
- (undo->layer == undo->layer2)?undo->auxlist:NULL);
- }
-
- if (ui.selection->move_pageno!=ui.selection->orig_pageno)
- do_switch_page(ui.selection->move_pageno, FALSE, FALSE);
-
- if (ui.cur_item_type == ITEM_MOVESEL_VERT)
- reset_selection();
- else {
- ui.selection->bbox.left += undo->val_x;
- ui.selection->bbox.right += undo->val_x;
- ui.selection->bbox.top += undo->val_y;
- ui.selection->bbox.bottom += undo->val_y;
- make_dashed(ui.selection->canvas_item);
- /* update selection box object's offset to be trivial, and its internal
- coordinates to agree with those of the bbox; need this since resize
- operations will modify the box by setting its coordinates directly */
- gnome_canvas_item_affine_absolute(ui.selection->canvas_item, NULL);
- gnome_canvas_item_set(ui.selection->canvas_item,
- "x1", ui.selection->bbox.left, "x2", ui.selection->bbox.right,
- "y1", ui.selection->bbox.top, "y2", ui.selection->bbox.bottom, NULL);
- }
- ui.cur_item_type = ITEM_NONE;
- update_cursor();
-}
-
-#define SCALING_EPSILON 0.001
-
-void finalize_resizesel(void)
-{
- struct Item *item;
-
- // build the affine transformation
- double offset_x, offset_y, scaling_x, scaling_y;
- scaling_x = (ui.selection->new_x2 - ui.selection->new_x1) /
- (ui.selection->bbox.right - ui.selection->bbox.left);
- scaling_y = (ui.selection->new_y2 - ui.selection->new_y1) /
- (ui.selection->bbox.bottom - ui.selection->bbox.top);
- // couldn't undo a resize-by-zero...
- if (fabs(scaling_x)<SCALING_EPSILON) scaling_x = SCALING_EPSILON;
- if (fabs(scaling_y)<SCALING_EPSILON) scaling_y = SCALING_EPSILON;
- offset_x = ui.selection->new_x1 - ui.selection->bbox.left * scaling_x;
- offset_y = ui.selection->new_y1 - ui.selection->bbox.top * scaling_y;
-
- if (ui.selection->items != NULL) {
- // create the undo information
- prepare_new_undo();
- undo->type = ITEM_RESIZESEL;
- undo->itemlist = g_list_copy(ui.selection->items);
- undo->auxlist = NULL;
-
- undo->scaling_x = scaling_x;
- undo->scaling_y = scaling_y;
- undo->val_x = offset_x;
- undo->val_y = offset_y;
-
- // actually do the resize operation
- resize_journal_items_by(ui.selection->items, scaling_x, scaling_y, offset_x, offset_y);
- }
-
- if (scaling_x>0) {
- ui.selection->bbox.left = ui.selection->new_x1;
- ui.selection->bbox.right = ui.selection->new_x2;
- } else {
- ui.selection->bbox.left = ui.selection->new_x2;
- ui.selection->bbox.right = ui.selection->new_x1;
- }
- if (scaling_y>0) {
- ui.selection->bbox.top = ui.selection->new_y1;
- ui.selection->bbox.bottom = ui.selection->new_y2;
- } else {
- ui.selection->bbox.top = ui.selection->new_y2;
- ui.selection->bbox.bottom = ui.selection->new_y1;
- }
- make_dashed(ui.selection->canvas_item);
-
- ui.cur_item_type = ITEM_NONE;
- update_cursor();
-}
-
-void selection_delete(void)
-{
- struct UndoErasureData *erasure;
- GList *itemlist;
- struct Item *item;
-
- if (ui.selection == NULL) return;
- prepare_new_undo();
- undo->type = ITEM_ERASURE;
- undo->layer = ui.selection->layer;
- undo->erasurelist = NULL;
- for (itemlist = ui.selection->items; itemlist!=NULL; itemlist = itemlist->next) {
- item = (struct Item *)itemlist->data;
- if (item->canvas_item!=NULL)
- gtk_object_destroy(GTK_OBJECT(item->canvas_item));
- erasure = g_new(struct UndoErasureData, 1);
- erasure->item = item;
- erasure->npos = g_list_index(ui.selection->layer->items, item);
- erasure->nrepl = 0;
- erasure->replacement_items = NULL;
- ui.selection->layer->items = g_list_remove(ui.selection->layer->items, item);
- ui.selection->layer->nitems--;
- undo->erasurelist = g_list_prepend(undo->erasurelist, erasure);
- }
- reset_selection();
-
- /* NOTE: the erasurelist is built backwards; this guarantees that,
- upon undo, the erasure->npos fields give the correct position
- where each item should be reinserted as the list is traversed in
- the forward direction */
-}
-
-// modify the color or thickness of pen strokes in a selection
-
-void recolor_selection(int color_no, guint color_rgba)
-{
- GList *itemlist;
- struct Item *item;
- struct Brush *brush;
- GnomeCanvasGroup *group;
-
- if (ui.selection == NULL) return;
- prepare_new_undo();
- undo->type = ITEM_REPAINTSEL;
- undo->itemlist = NULL;
- undo->auxlist = NULL;
- for (itemlist = ui.selection->items; itemlist!=NULL; itemlist = itemlist->next) {
- item = (struct Item *)itemlist->data;
- if (item->type != ITEM_STROKE && item->type != ITEM_TEXT) continue;
- if (item->type == ITEM_STROKE && item->brush.tool_type!=TOOL_PEN) continue;
- // store info for undo
- undo->itemlist = g_list_append(undo->itemlist, item);
- brush = (struct Brush *)g_malloc(sizeof(struct Brush));
- g_memmove(brush, &(item->brush), sizeof(struct Brush));
- undo->auxlist = g_list_append(undo->auxlist, brush);
- // repaint the stroke
- item->brush.color_no = color_no;
- item->brush.color_rgba = color_rgba | 0xff; // no alpha
- if (item->canvas_item!=NULL) {
- if (!item->brush.variable_width)
- gnome_canvas_item_set(item->canvas_item,
- "fill-color-rgba", item->brush.color_rgba, NULL);
- else {
- group = (GnomeCanvasGroup *) item->canvas_item->parent;
- gtk_object_destroy(GTK_OBJECT(item->canvas_item));
- make_canvas_item_one(group, item);
- }
- }
- }
-}
-
-void rethicken_selection(int val)
-{
- GList *itemlist;
- struct Item *item;
- struct Brush *brush;
- GnomeCanvasGroup *group;
-
- if (ui.selection == NULL) return;
- prepare_new_undo();
- undo->type = ITEM_REPAINTSEL;
- undo->itemlist = NULL;
- undo->auxlist = NULL;
- for (itemlist = ui.selection->items; itemlist!=NULL; itemlist = itemlist->next) {
- item = (struct Item *)itemlist->data;
- if (item->type != ITEM_STROKE || item->brush.tool_type!=TOOL_PEN) continue;
- // store info for undo
- undo->itemlist = g_list_append(undo->itemlist, item);
- brush = (struct Brush *)g_malloc(sizeof(struct Brush));
- g_memmove(brush, &(item->brush), sizeof(struct Brush));
- undo->auxlist = g_list_append(undo->auxlist, brush);
- // repaint the stroke
- item->brush.thickness_no = val;
- item->brush.thickness = predef_thickness[TOOL_PEN][val];
- if (item->canvas_item!=NULL) {
- if (!item->brush.variable_width)
- gnome_canvas_item_set(item->canvas_item,
- "width-units", item->brush.thickness, NULL);
- else {
- group = (GnomeCanvasGroup *) item->canvas_item->parent;
- gtk_object_destroy(GTK_OBJECT(item->canvas_item));
- item->brush.variable_width = FALSE;
- make_canvas_item_one(group, item);
- }
- }
- }
-}
gboolean do_hand_scrollto(gpointer data)
{
projects / xournal.git / blobdiff