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(svn r25816) -Add [FS#5748]: Toggle button for wrapping lines in the textfile GUI (LordAro)

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frosch
2013-10-06 11:29:14 +00:00
parent f26aad2e84
commit dfa0e61f25
7 changed files with 80 additions and 32 deletions
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97
src/textfile_gui.cpp
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@@ -21,12 +21,12 @@
#include "table/strings.h"
/** Widgets for the textfile window. */
static const NWidgetPart _nested_textfile_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
NWidget(WWT_CAPTION, COLOUR_MAUVE, WID_TF_CAPTION), SetDataTip(STR_NULL, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
NWidget(WWT_TEXTBTN, COLOUR_MAUVE, WID_TF_WRAPTEXT), SetDataTip(STR_TEXTFILE_WRAP_TEXT, STR_TEXTFILE_WRAP_TEXT_TOOLTIP),
NWidget(WWT_DEFSIZEBOX, COLOUR_MAUVE),
EndContainer(),
NWidget(NWID_HORIZONTAL),
@@ -57,6 +57,9 @@ TextfileWindow::TextfileWindow(TextfileType file_type) : Window(&_textfile_desc)
this->hscroll = this->GetScrollbar(WID_TF_HSCROLLBAR);
this->FinishInitNested();
this->GetWidget<NWidgetCore>(WID_TF_CAPTION)->SetDataTip(STR_TEXTFILE_README_CAPTION + file_type, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS);
this->hscroll->SetStepSize(10); // Speed up horizontal scrollbar
this->vscroll->SetStepSize(FONT_HEIGHT_MONO);
}
/* virtual */ TextfileWindow::~TextfileWindow()
@@ -64,12 +67,27 @@ TextfileWindow::TextfileWindow(TextfileType file_type) : Window(&_textfile_desc)
free(this->text);
}
/**
* Get the total height of the content displayed in this window, if wrapping is disabled.
* @return the height in pixels
*/
uint TextfileWindow::GetContentHeight()
{
int max_width = this->GetWidget<NWidgetCore>(WID_TF_BACKGROUND)->current_x - WD_FRAMETEXT_LEFT - WD_FRAMERECT_RIGHT;
uint height = 0;
for (uint i = 0; i < this->lines.Length(); i++) {
height += GetStringHeight(this->lines[i], max_width, FS_MONO);
}
return height;
}
/* virtual */ void TextfileWindow::UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
{
switch (widget) {
case WID_TF_BACKGROUND:
this->line_height = FONT_HEIGHT_MONO + 2;
resize->height = this->line_height;
resize->height = 1;
size->height = 4 * resize->height + TOP_SPACING + BOTTOM_SPACING; // At least 4 lines are visible.
size->width = max(200u, size->width); // At least 200 pixels wide.
@@ -77,29 +95,60 @@ TextfileWindow::TextfileWindow(TextfileType file_type) : Window(&_textfile_desc)
}
}
/** Set scrollbars to the right lengths. */
void TextfileWindow::SetupScrollbars()
{
if (IsWidgetLowered(WID_TF_WRAPTEXT)) {
this->vscroll->SetCount(this->GetContentHeight());
this->hscroll->SetCount(0);
} else {
uint max_length = 0;
for (uint i = 0; i < this->lines.Length(); i++) {
max_length = max(max_length, GetStringBoundingBox(this->lines[i], FS_MONO).width);
}
this->vscroll->SetCount(this->lines.Length() * FONT_HEIGHT_MONO);
this->hscroll->SetCount(max_length + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT);
}
this->SetWidgetDisabledState(WID_TF_HSCROLLBAR, IsWidgetLowered(WID_TF_WRAPTEXT));
}
/* virtual */ void TextfileWindow::OnClick(Point pt, int widget, int click_count)
{
switch (widget) {
case WID_TF_WRAPTEXT:
this->ToggleWidgetLoweredState(WID_TF_WRAPTEXT);
this->SetupScrollbars();
this->InvalidateData();
break;
}
}
/* virtual */ void TextfileWindow::DrawWidget(const Rect &r, int widget) const
{
if (widget != WID_TF_BACKGROUND) return;
int width = r.right - r.left + 1 - WD_BEVEL_LEFT - WD_BEVEL_RIGHT;
int height = r.bottom - r.top + 1 - WD_BEVEL_LEFT - WD_BEVEL_RIGHT;
const int x = r.left + WD_FRAMETEXT_LEFT;
const int y = r.top + WD_FRAMETEXT_TOP;
const int right = r.right - WD_FRAMETEXT_RIGHT;
const int bottom = r.bottom - WD_FRAMETEXT_BOTTOM;
DrawPixelInfo new_dpi;
if (!FillDrawPixelInfo(&new_dpi, r.left + WD_BEVEL_LEFT, r.top, width, height)) return;
if (!FillDrawPixelInfo(&new_dpi, x, y, right - x + 1, r.bottom - y + 1)) return;
DrawPixelInfo *old_dpi = _cur_dpi;
_cur_dpi = &new_dpi;
int left, right;
if (_current_text_dir == TD_RTL) {
left = width + WD_BEVEL_RIGHT - WD_FRAMETEXT_RIGHT - this->hscroll->GetCount();
right = width + WD_BEVEL_RIGHT - WD_FRAMETEXT_RIGHT - 1 + this->hscroll->GetPosition();
} else {
left = WD_FRAMETEXT_LEFT - WD_BEVEL_LEFT - this->hscroll->GetPosition();
right = WD_FRAMETEXT_LEFT - WD_BEVEL_LEFT + this->hscroll->GetCount() - 1;
}
int top = TOP_SPACING;
for (uint i = 0; i < this->vscroll->GetCapacity() && i + this->vscroll->GetPosition() < this->lines.Length(); i++) {
DrawString(left, right, top + i * this->line_height, this->lines[i + this->vscroll->GetPosition()], TC_WHITE, SA_LEFT, false, FS_MONO);
/* Draw content (now coordinates given to DrawString* are local to the new clipping region). */
int line_height = FONT_HEIGHT_MONO;
int y_offset = -this->vscroll->GetPosition();
for (uint i = 0; i < this->lines.Length(); i++) {
if (IsWidgetLowered(WID_TF_WRAPTEXT)) {
y_offset = DrawStringMultiLine(0, right - x, y_offset, bottom - y, this->lines[i], TC_WHITE, SA_TOP | SA_LEFT, false, FS_MONO);
} else {
DrawString(-this->hscroll->GetPosition(), right - x, y_offset, this->lines[i], TC_WHITE, SA_TOP | SA_LEFT, false, FS_MONO);
y_offset += line_height; // margin to previous element
}
}
_cur_dpi = old_dpi;
@@ -109,6 +158,8 @@ TextfileWindow::TextfileWindow(TextfileType file_type) : Window(&_textfile_desc)
{
this->vscroll->SetCapacityFromWidget(this, WID_TF_BACKGROUND, TOP_SPACING + BOTTOM_SPACING);
this->hscroll->SetCapacityFromWidget(this, WID_TF_BACKGROUND);
this->SetupScrollbars();
}
/* virtual */ void TextfileWindow::Reset()
@@ -141,7 +192,7 @@ TextfileWindow::TextfileWindow(TextfileType file_type) : Window(&_textfile_desc)
}
/**
* Loads the textfile text from file, and setup #lines, #max_length, and both scrollbars.
* Loads the textfile text from file and setup #lines.
*/
/* virtual */ void TextfileWindow::LoadTextfile(const char *textfile, Subdirectory dir)
{
@@ -183,16 +234,6 @@ TextfileWindow::TextfileWindow(TextfileType file_type) : Window(&_textfile_desc)
}
CheckForMissingGlyphs(true, this);
/* Initialize scrollbars */
this->vscroll->SetCount(this->lines.Length());
this->max_length = 0;
for (uint i = 0; i < this->lines.Length(); i++) {
this->max_length = max(this->max_length, GetStringBoundingBox(this->lines[i], FS_MONO).width);
}
this->hscroll->SetCount(this->max_length + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT);
this->hscroll->SetStepSize(10); // Speed up horizontal scrollbar
}
/**