summaryrefslogtreecommitdiffstats
path: root/mojo/examples/keyboard/keyboard_view.cc
diff options
context:
space:
mode:
Diffstat (limited to 'mojo/examples/keyboard/keyboard_view.cc')
-rw-r--r--mojo/examples/keyboard/keyboard_view.cc251
1 files changed, 0 insertions, 251 deletions
diff --git a/mojo/examples/keyboard/keyboard_view.cc b/mojo/examples/keyboard/keyboard_view.cc
deleted file mode 100644
index 4dfeecb..0000000
--- a/mojo/examples/keyboard/keyboard_view.cc
+++ /dev/null
@@ -1,251 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "mojo/examples/keyboard/keyboard_view.h"
-
-#include <algorithm>
-
-#include "base/strings/string16.h"
-#include "base/strings/utf_string_conversions.h"
-#include "mojo/examples/keyboard/keyboard_delegate.h"
-#include "mojo/examples/keyboard/keys.h"
-#include "ui/events/keycodes/keyboard_code_conversion.h"
-#include "ui/events/keycodes/keyboard_codes.h"
-#include "ui/gfx/canvas.h"
-#include "ui/views/background.h"
-#include "ui/views/controls/button/label_button.h"
-#include "ui/views/controls/button/label_button_border.h"
-
-namespace mojo {
-namespace examples {
-
-namespace {
-
-const int kHorizontalPadding = 6;
-const int kVerticalPadding = 8;
-
-base::string16 GetDisplayString(int key_code, int flags) {
- return base::string16(1, ui::GetCharacterFromKeyCode(
- static_cast<ui::KeyboardCode>(key_code), flags));
-}
-
-// Returns a font that fits in the space provided. |text| is used as a basis
-// for determing the size.
-gfx::FontList CalculateFont(int width, int height, const base::string16& text) {
- gfx::FontList font;
- gfx::FontList last_font;
- while (gfx::Canvas::GetStringWidth(text, font) < width &&
- font.GetHeight() < height) {
- last_font = font;
- font = font.DeriveWithSizeDelta(2);
- }
- return last_font;
-}
-
-// Returns the total number of keys in |rows|.
-int NumKeys(const std::vector<const Row*>& rows) {
- int result = 0;
- for (size_t i = 0; i < rows.size(); ++i)
- result += static_cast<int>(rows[i]->num_keys);
- return result;
-}
-
-} // namespace
-
-KeyboardView::KeyboardView(KeyboardDelegate* delegate)
- : delegate_(delegate),
- max_keys_in_row_(0),
- keyboard_layout_(KEYBOARD_LAYOUT_ALPHA) {
- set_background(views::Background::CreateSolidBackground(SK_ColorBLACK));
- SetRows(GetQWERTYRows());
-}
-
-KeyboardView::~KeyboardView() {
-}
-
-void KeyboardView::Layout() {
- if (width() == 0 || height() == 0 || rows_.empty() ||
- last_layout_size_ == bounds().size())
- return;
-
- last_layout_size_ = bounds().size();
-
- const int button_width =
- (width() - (max_keys_in_row_ - 1) * kHorizontalPadding) /
- max_keys_in_row_;
- const int button_height =
- (height() - (static_cast<int>(rows_.size() - 1) * kVerticalPadding)) /
- static_cast<int>(rows_.size());
- for (size_t i = 0; i < rows_.size(); ++i)
- LayoutRow(*(rows_[i]), static_cast<int>(i), button_width, button_height);
-
- views::LabelButtonBorder border(views::Button::STYLE_TEXTBUTTON);
- gfx::Insets insets(border.GetInsets());
- gfx::FontList font = CalculateFont(button_width - insets.width(),
- button_height - insets.height(),
- base::ASCIIToUTF16("W"));
- gfx::FontList special_font = CalculateFont(button_width - insets.width(),
- button_height - insets.height(),
- base::ASCIIToUTF16("?123"));
- button_font_ = font;
- ResetFonts(font, special_font);
-}
-
-void KeyboardView::SetLayout(KeyboardLayout keyboard_layout) {
- if (keyboard_layout_ == keyboard_layout)
- return;
-
- keyboard_layout_ = keyboard_layout;
- last_layout_size_ = gfx::Size();
- if (keyboard_layout_ == KEYBOARD_LAYOUT_NUMERIC)
- SetRows(GetNumericRows());
- else
- SetRows(GetQWERTYRows());
- Layout();
- SchedulePaint();
-}
-
-void KeyboardView::LayoutRow(const Row& row,
- int row_index,
- int button_width,
- int button_height) {
- int x = row.padding * (button_width + kHorizontalPadding);
- const int y = row_index * (button_height + kVerticalPadding);
- for (size_t i = 0; i < row.num_keys; ++i) {
- views::View* button = GetButton(row_index, static_cast<int>(i));
- int actual_width = button_width;
- if (row.keys[i].size > 1) {
- actual_width = (button_width + kHorizontalPadding) *
- row.keys[i].size - kHorizontalPadding;
- }
- button->SetBounds(x, y, actual_width, button_height);
- x += actual_width + kHorizontalPadding;
- }
-}
-
-void KeyboardView::SetRows(const std::vector<const Row*>& rows) {
- const int num_keys = NumKeys(rows);
- while (child_count() > num_keys)
- delete child_at(child_count() - 1);
- for (int i = child_count(); i < num_keys; ++i)
- AddChildView(CreateButton());
-
- last_layout_size_ = gfx::Size();
-
- rows_ = rows;
-
- max_keys_in_row_ = 0;
- for (size_t i = 0; i < rows_.size(); ++i) {
- max_keys_in_row_ = std::max(max_keys_in_row_,
- static_cast<int>(rows_[i]->num_keys));
- ConfigureButtonsInRow(static_cast<int>(i), *rows_[i]);
- }
-}
-
-void KeyboardView::ConfigureButtonsInRow(int row_index, const Row& row) {
- for (size_t i = 0; i < row.num_keys; ++i) {
- views::LabelButton* button = GetButton(row_index, static_cast<int>(i));
- const Key& key(row.keys[i]);
- switch (key.display_code) {
- case SPECIAL_KEY_SHIFT:
- // TODO: need image.
- button->SetText(base::string16());
- break;
- case SPECIAL_KEY_NUMERIC:
- button->SetText(base::ASCIIToUTF16("?123"));
- break;
- case SPECIAL_KEY_ALPHA:
- button->SetText(base::ASCIIToUTF16("ABC"));
- break;
- default:
- button->SetText(GetDisplayString(key.display_code,
- key.event_flags | event_flags()));
- break;
- }
- button->SetState(views::Button::STATE_NORMAL);
- }
-}
-
-views::View* KeyboardView::CreateButton() {
- views::LabelButton* button = new views::LabelButton(this, base::string16());
- button->SetTextColor(views::Button::STATE_NORMAL, SK_ColorWHITE);
- button->SetHorizontalAlignment(gfx::ALIGN_CENTER);
- button->set_background(views::Background::CreateSolidBackground(78, 78, 78));
- button->SetFontList(button_font_);
- // button->SetHaloColor(SK_ColorBLACK);
- // Turn off animations as we reuse buttons in different layouts. If we didn't
- // do this and you click a button to change the layout then the button you
- // clicked on would animate the transition even though it may now represent a
- // different key.
- button->SetAnimationDuration(0);
- return button;
-}
-
-views::LabelButton* KeyboardView::GetButton(int row, int column) {
- int offset = column;
- for (int i = 0; i < row; ++i)
- offset += static_cast<int>(rows_[i]->num_keys);
- return static_cast<views::LabelButton*>(child_at(offset));
-}
-
-const Key& KeyboardView::GetKeyForButton(views::Button* button) const {
- int index = GetIndexOf(button);
- DCHECK_NE(-1, index);
- int row = 0;
- while (index >= static_cast<int>(rows_[row]->num_keys)) {
- index -= static_cast<int>(rows_[row]->num_keys);
- row++;
- }
- return rows_[row]->keys[index];
-}
-
-void KeyboardView::ResetFonts(const gfx::FontList& button_font,
- const gfx::FontList& special_font) {
- for (size_t i = 0; i < rows_.size(); ++i) {
- for (size_t j = 0; j < rows_[i]->num_keys; ++j) {
- views::LabelButton* button = GetButton(static_cast<int>(i),
- static_cast<int>(j));
- const Key& key(GetKeyForButton(button));
- switch (key.display_code) {
- case SPECIAL_KEY_ALPHA:
- case SPECIAL_KEY_NUMERIC:
- button->SetFontList(special_font);
- break;
- default:
- button->SetFontList(button_font);
- break;
- }
- }
- }
-}
-
-void KeyboardView::ButtonPressed(views::Button* sender,
- const ui::Event& event) {
- const Key& key(GetKeyForButton(sender));
- switch (key.display_code) {
- case SPECIAL_KEY_SHIFT:
- SetLayout((keyboard_layout_ == KEYBOARD_LAYOUT_SHIFT) ?
- KEYBOARD_LAYOUT_ALPHA : KEYBOARD_LAYOUT_SHIFT);
- return;
- case SPECIAL_KEY_ALPHA:
- SetLayout(KEYBOARD_LAYOUT_ALPHA);
- return;
- case SPECIAL_KEY_NUMERIC:
- SetLayout(KEYBOARD_LAYOUT_NUMERIC);
- return;
- default:
- break;
- }
-
- // Windows isn't happy if we pass in the flags used to get the display string.
-#if defined(OS_WIN)
- int key_event_flags = 0;
-#else
- int key_event_flags = key.event_flags;
-#endif
- delegate_->OnKeyPressed(key.keyboard_code(), key_event_flags | event_flags());
-}
-
-} // namespace examples
-} // namespace mojo
generated by cgit v1.1 at 2025-01-11 02:09:08 +0000