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Upsilon/apps/code/editor_view.cpp
2021-01-21 19:56:06 +01:00

109 lines
3.1 KiB
C++

#include "editor_view.h"
#include <apps/global_preferences.h>
#include <poincare/integer.h>
#include <escher/app.h>
#include <poincare/preferences.h>
namespace Code {
/* EditorView */
EditorView::EditorView(Responder * parentResponder, App * pythonDelegate) :
Responder(parentResponder),
View(),
m_textArea(parentResponder, pythonDelegate, GlobalPreferences::sharedGlobalPreferences()->font()),
m_gutterView(GlobalPreferences::sharedGlobalPreferences()->font())
{
m_textArea.setScrollViewDelegate(this);
}
bool EditorView::isAutocompleting() const {
return m_textArea.isAutocompleting();
}
void EditorView::resetSelection() {
m_textArea.resetSelection();
}
void EditorView::scrollViewDidChangeOffset(ScrollViewDataSource * scrollViewDataSource) {
m_gutterView.setOffset(scrollViewDataSource->offset().y());
}
View * EditorView::subviewAtIndex(int index) {
if (index == 0) {
return &m_textArea;
}
assert(index == 1);
return &m_gutterView;
}
void EditorView::didBecomeFirstResponder() {
Container::activeApp()->setFirstResponder(&m_textArea);
}
void EditorView::layoutSubviews(bool force) {
m_gutterView.setOffset(0);
KDCoordinate gutterWidth = m_gutterView.minimalSizeForOptimalDisplay().width();
m_gutterView.setFrame(KDRect(0, 0, gutterWidth, bounds().height()), force);
m_textArea.setFrame(KDRect(
gutterWidth,
0,
bounds().width()-gutterWidth,
bounds().height()),
force);
}
/* EditorView::GutterView */
void EditorView::GutterView::drawRect(KDContext * ctx, KDRect rect) const {
KDColor textColor = Palette::PrimaryText;
KDColor backgroundColor = Palette::CodeGutterViewBackground;
ctx->fillRect(rect, backgroundColor);
KDSize glyphSize = m_font->glyphSize();
KDCoordinate firstLine = m_offset / glyphSize.height();
KDCoordinate firstLinePixelOffset = m_offset - firstLine * glyphSize.height();
char lineNumber[k_lineNumberCharLength];
int numberOfLines = bounds().height() / glyphSize.height() + 1;
for (int i=0; i<numberOfLines; i++) {
// Only the first two digits are displayed
int lineNumberValue = (i + firstLine + 1) % 100;
Poincare::Integer line(lineNumberValue);
if (firstLine < 10 || lineNumberValue >= 10) {
line.serialize(lineNumber, k_lineNumberCharLength);
} else {
// Add a leading "0"
lineNumber[0] = '0';
line.serialize(lineNumber + 1, k_lineNumberCharLength - 1);
}
KDCoordinate leftPadding = (2 - strlen(lineNumber)) * glyphSize.width();
ctx->drawString(
lineNumber,
KDPoint(k_margin + leftPadding, i*glyphSize.height() - firstLinePixelOffset),
m_font,
textColor,
backgroundColor
);
}
}
void EditorView::GutterView::setOffset(KDCoordinate offset) {
if (m_offset == offset) {
return;
}
m_offset = offset;
markRectAsDirty(bounds());
}
KDSize EditorView::GutterView::minimalSizeForOptimalDisplay() const {
int numberOfChars = 2; // TODO: Could be computed
return KDSize(2 * k_margin + numberOfChars * Poincare::Preferences::sharedPreferences()->KDPythonFont()->glyphSize().width(), 0);
}
}