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authorBent Bisballe Nyeng <deva@aasimon.org>2011-07-28 23:59:21 +0200
committerBent Bisballe Nyeng <deva@aasimon.org>2011-07-29 00:00:24 +0200
commit016f7f2a57dbb776846a511e06e03b2e2572ab7c (patch)
tree1b04cce78d92ffcf540063f6dd54c8270b298cf8 /dgedit/canvastoolselections.cc
parent11ae33c3b0a0cbad772b23eb7d0714eef8ab9b03 (diff)
First attemt on the selections tool in the new CanvasTool structure.
Diffstat (limited to 'dgedit/canvastoolselections.cc')
-rw-r--r--dgedit/canvastoolselections.cc222
1 files changed, 210 insertions, 12 deletions
diff --git a/dgedit/canvastoolselections.cc b/dgedit/canvastoolselections.cc
index 13798a8..7492b9b 100644
--- a/dgedit/canvastoolselections.cc
+++ b/dgedit/canvastoolselections.cc
@@ -26,19 +26,217 @@
*/
#include "canvastoolselections.h"
-#ifdef TEST_CANVASTOOLSELECTIONS
-//Additional dependency files
-//deps:
-//Required cflags (autoconf vars may be used)
-//cflags:
-//Required link options (autoconf vars may be used)
-//libs:
-#include "test.h"
+#include <math.h>
-TEST_BEGIN;
+#define mapX(x) canvas->mapX(x)
+#define mapY(x) canvas->mapY(x)
+#define unmapX(x) canvas->unmapX(x)
+#define unmapY(x) canvas->unmapY(x)
-// TODO: Put some testcode here (see test.h for usable macros).
+CanvasToolSelections::CanvasToolSelections(Canvas *c)
+{
+ canvas = c;
+ data = canvas->data;
+ size = canvas->size;
-TEST_END;
+ selection_is_moving_left = false;
+ selection_is_moving_right = false;
+ active_selection = NULL;
-#endif/*TEST_CANVASTOOLSELECTIONS*/
+ colSelBg = QColor(255, 0, 0, 60);
+ colSel = QColor(255, 0, 0, 160);
+ colActiveSelBg = QColor(255, 255, 0, 60);
+ colActiveSel = QColor(255, 255, 0, 160);
+
+}
+
+bool CanvasToolSelections::mouseMoveEvent(QMouseEvent *event)
+{
+ if(selection_is_moving_left) {
+ float val = unmapX(event->x());
+ if(val > active_selection->to) val = active_selection->to - 1;
+ active_selection->from = val;
+ canvas->update();
+ emit selectionsChanged(_selections);
+ return true;
+ }
+
+ if(selection_is_moving_right) {
+ float val = unmapX(event->x());
+ if(val < active_selection->from) val = active_selection->from + 1;
+ active_selection->to = val;
+ canvas->update();
+ emit selectionsChanged(_selections);
+ return true;
+ }
+
+ if(event->button() != Qt::LeftButton) {
+ // Check if a selection is being dragged.
+ QMap<int, Selection>::iterator i = _selections.begin();
+ while(i != _selections.end()) {
+ if(abs(event->x() - mapX(i.value().from)) < 2
+ || abs(event->x() - mapX(i.value().to)) < 2) {
+ canvas->setCursor(Qt::SplitHCursor);
+ }
+ i++;
+ }
+ }
+
+ return false;
+}
+
+bool CanvasToolSelections::mousePressEvent(QMouseEvent *event)
+{
+ if(event->button() == Qt::LeftButton) {
+ // Check if a selection is being dragged.
+ QMap<int, Selection>::iterator i = _selections.begin();
+ while(i != _selections.end()) {
+ if(abs(event->x() - mapX(i.value().from)) < 2) {
+ active_selection = &i.value();
+ selection_is_moving_left = true;
+ emit activeSelectionChanged(i.value());
+ return true;
+ }
+
+ if(abs(event->x() - mapX(i.value().to)) < 2) {
+ active_selection = &i.value();
+ selection_is_moving_right = true;
+ emit activeSelectionChanged(i.value());
+ return true;
+ }
+
+ i++;
+ }
+
+ // Check if a selection is being selected.
+ i = _selections.begin();
+ while(i != _selections.end()) {
+ if(event->x() > mapX(i.value().from) &&
+ event->x() < mapX(i.value().to)) {
+ active_selection = &i.value();
+ canvas->update();
+ emit activeSelectionChanged(i.value());
+ return true;
+ }
+
+ i++;
+ }
+
+ // Make new selection
+ int from = unmapX(event->x());
+ _selections[from] = Selection(from, from);
+ active_selection = &_selections[from];
+ selection_is_moving_right = true;
+ canvas->update();
+ return true;
+ }
+
+ return false;
+}
+
+bool CanvasToolSelections::mouseReleaseEvent(QMouseEvent *event)
+{
+ if(event->button() == Qt::LeftButton) {
+ if(selection_is_moving_left || selection_is_moving_right) {
+ selection_is_moving_left = false;
+ selection_is_moving_right = false;
+ canvas->setCursor(Qt::ArrowCursor);
+ canvas->update();
+ return true;
+ }
+ }
+
+ return false;
+}
+
+void CanvasToolSelections::paintEvent(QPaintEvent *event, QPainter &painter)
+{
+ int pos = unmapX(event->rect().x());
+ int width = unmapX(event->rect().width());
+ QMap<int, Selection>::iterator i = _selections.begin();
+ while(i != _selections.end()) {
+ int from = i.value().from;
+ int to = i.value().to;
+ int fadein = i.value().fadein;
+ int fadeout = i.value().fadeout;
+ if(from > pos + width || to + width < pos) { i++; continue; }
+ if(active_selection == &i.value()) {
+ painter.setBrush(colActiveSelBg);
+ painter.setPen(colActiveSel);
+ } else {
+ painter.setBrush(colSelBg);
+ painter.setPen(colSel);
+ }
+ painter.drawRect(mapX(from), mapY(-1.0), mapX(to) - mapX(from), mapY(1.0) - mapY(-1.0));
+ painter.drawLine(mapX(from), mapY(0.0), mapX(from + fadein), mapY(-1.0));
+ painter.drawLine(mapX(from), mapY(0.0), mapX(from + fadein), mapY(1.0));
+ painter.drawLine(mapX(to - fadeout), mapY(-1.0), mapX(to), mapY(0.0));
+ painter.drawLine(mapX(to - fadeout), mapY(1.0), mapX(to), mapY(0.0));
+ i++;
+ }
+}
+
+void CanvasToolSelections::keyReleaseEvent(QKeyEvent *event)
+{
+ if(active_selection && event->key() == Qt::Key_Delete) {
+ _selections.remove(active_selection->from);
+ canvas->update();
+ }
+}
+
+void CanvasToolSelections::autoCreateSelections()
+{
+ /*
+ for(size_t i = 0; i < size; i++) {
+ if(fabs(data[i]) > fabs(threshold)) {
+ int from = i;
+
+ if(data[from] > 0.0) {
+ while(data[from] > data[from-1] // Falling
+ && data[from-1] > 0.0 // Not crossing zero
+ ) {
+ from--;
+ }
+ } else if(data[from] < 0.0) {
+ while(data[from] < data[from-1] // Rising
+ && data[from-1] < 0.0 // Not crossing zero
+ ) {
+ from--;
+ }
+ }
+
+ int minsize = 100; // attack.
+ float minval = 0.00003; // noise floor
+ int to = i;
+ float runavg = fabs(data[from]);
+ while((runavg > minval ||
+ to < from + minsize) &&
+ to < (int)size) {
+ double p = 0.9;
+ runavg = runavg * p + fabs(data[to]) * (1 - p);
+ to++;
+ }
+ _selections[from] = Selection(from, to, 2, (to - from) / 3);
+
+ i = to+1;
+ }
+ }
+ canvas->update();
+ emit selectionsChanged(_selections);
+ */
+}
+
+void CanvasToolSelections::clearSelections()
+{
+ _selections.clear();
+ selection_is_moving_left = false;
+ selection_is_moving_right = false;
+ canvas->setCursor(Qt::ArrowCursor);
+ canvas->update();
+ emit selectionsChanged(_selections);
+}
+
+Selections CanvasToolSelections::selections()
+{
+ return _selections;
+}